fix build: Add a few includes, suppress some werrors

Not sure how this slipped through the cracks, but I'm guessing the build broke when we upgraded the cpp compilers (to clang 17 and gcc 13). * Include <cstdint> in a few places * Suppress -Wstringop-overflow in sparkd-gcc-release build * Change const char * param to explicit std::string for proper type deduction in call to 'std::make_tuple'. For some reason, the gcc build was failing with an array-bounds werror (changing the arg fixed it).
fix build: Remove version suffix from RuntimeIdentifiers in csprojs
2024-03-18 19:14:48 +00:00 · 2024-03-18 15:13:01 -04:00 · 2024-03-18 15:09:49 -04:00 · 2024-03-18 15:09:49 -04:00 · 2024-03-18 15:09:27 -04:00 · 2024-03-13 13:43:35 -05:00
3972 changed files with 93007 additions and 157513 deletions
@@ -9,7 +9,7 @@
      ]
    },
    "fable": {
-      "version": "4.24.0",
+      "version": "4.0.6",
      "commands": [
        "fable"
      ]
@@ -25,12 +25,6 @@
      "commands": [
        "fake"
      ]
-    },
-    "dotnet-t4": {
-      "version": "3.0.0",
-      "commands": [
-        "t4"
-      ]
    }
  }
-}
+}
@@ -1,38 +0,0 @@
-{
-  "build": {
-    "dockerfile": "../docker/images/bluetradingsystems/linux_dotnet8_dev/Dockerfile",
-    "options": [
-      "--secret",
-      "id=bitbucket_access_token,src=${localWorkspaceFolder}/.secrets/bitbucket_access_token.txt"
-    ]
-  },
-  "hostRequirements": {
-    "memory": "8gb",
-    "storage": "10gb"
-  },
-  "containerUser": "bts",
-  "updateRemoteUserUID": true,
-  "shutdownAction": "none",
-  // Note: If running multiple containers on the same host, each must use a
-  // unique set of ports. Usually we just add 1000 to each port as needed. For
-  // example, if 8000-8003 is taken, go with 9000-9003, then 10000-10003, etc.
-  "runArgs": [
-    "--shm-size",
-    "8gb"
-  ],
-  "mounts": [
-    "source=/var/run/docker.sock,target=/var/run/docker.sock,type=bind"
-  ],
-  "customizations": {
-    "vscode": {
-      "extensions": [
-        "eamodio.gitlens",
-        "llvm-vs-code-extensions.vscode-clangd",
-        "ms-python.python",
-        "ms-vscode.cmake-tools",
-        "ms-vscode.cpptools",
-        "xaver.clang-format"
-      ]
-    }
-  }
-}
@@ -1,64 +0,0 @@
-# This file defines the global default configuration for docker deployments.
-# It is tracked in source control. For temporary modifications, please create
-# a separate file called ".env.local" (it's in .gitignore, so won't be tracked).
-# If a variable is defined in both files, the value in .env.local will be used.
-#
-# About the deployment procedure:
-#   We use Docker Compose to build images and launch containers for various services
-#   that make up our software suite:
-#     - sparkd
-#     - TODO: pubsub
-#     - TODO: md-publisher
-#     - TODO: webapp (DSQA on the web)
-#     - TODO: api-server (websocket based)
-#   From inside a devcontainer, you can launch all services in separate containers
-#   on your machine by running:
-#
-#     tools/deploy.sh
-#
-#   This script builds release versions for each service, packaged (generally) in
-#   self-contained directories. Next, it runs a few "docker compose" commands to
-#   build docker images loaded with the self-contained binaries from the previous
-#   step, and start containers with those images to run each service. To view the
-#   commands that deploy.sh runs internally (without actually running them), run:
-#
-#     tools/deploy.sh --dry-run
-#
-#   For additional information/help, run:
-#
-#     tools/deploy.sh --help
-#
-
-### Host/Runtime ###
-TZ=Etc/UTC
-
-### Sparkd ###
-# The internal image for sparkd to use. For more info, view:
-#   src/server/sparkd/Dockerfile
-SPARKD__IMAGE=sparkd
-# The config dir for this service to use
-SPARKD__CONFIG_DIR=src/app_sparkd/configurations/dev
-# Mount a specific volume or dir to "~/sparkdata/data" inside the docker.
-# Defaults to a volume named "sparkd_<config_port>" (e.g., sparkd_8000).
-# SPARKD__DATA_DIR=/home/bts/sparkdata/data
-# Mount volume or dir to "/md_recording" inside the docker. Defaults to volume
-# "sparkd_md_recording_<config_port>" (e.g., sparkd_md_recording_8000).
-# SPARKD__MD_RECORDING_DIR=/home/bts/md_recording
-SPARKD__SOURCE_DIR=install/sparkd-release-gcc
-SPARKD__RUNTIME_CONF_DIR=/home/ubuntu/8000/sparkdata/conf/
-SPARKD__CONFIG_PORT=8000
-SPARKD__QUICKBUS_PORT=8001
-SPARKD__SIM_FIX_PORT=8002
-SPARKD__SHM_SIZE=4gb
-SPARKD__PYTHON_REQUIREMENTS=requirements.txt
-SPARKD__SPARKD_ENTRYPOINT=src/app_sparkd/sparkd-entrypoint.sh
-SPARKD__MAIN_ENTRYPOINT=./sparkd-entrypoint.sh
-
-### PubSubServer ###
-PUBSUB__CONFIG_DIR=src/DataStreamSuite/PubSubServer/Configurations/Development
-PUBSUB__SOURCE_DIR=build/Release/bin/net8.0/linux-x64/publish
-
-### MdPublisher ###
-MD_PUBLISHER__CONFIG_DIR=src/DataStreamSuite/DataStreamPublisher/Configurations/ReplayMarketData
-MD_PUBLISHER__SOURCE_DIR=build/Release/bin/net8.0/linux-x64/publish
-# TODO: add config for other services (pubsub, md-publisher, webapp, api-server, etc.)
@@ -1,3 +0,0 @@
-*.cmd text=auto eol=crlf
-*.cs text=auto eol=crlf
-*.sh text=auto eol=lf
@@ -8,10 +8,7 @@ cmake-build-debug/
 .idea/
 .dir-locals.el
 *.pyc
-**.vscode/*
-!.vscode/launch.json
-!.vscode/tasks.json
-!.vscode/*.env
+**.vscode
 .vs
 obj/
 *.csproj.user
@@ -55,12 +52,8 @@ trace_data/
 .cache/
 /src/Spark.Admin.WebApp/tsconfig.*.g.json
 /src/Spark.Admin.WebApp/src/bin/
-/src/**/*appsettings.Local.json
-/src/**/*/Configurations/Local/
 **/CMakeDeps.cmake
 **/CMakeDeps_win.cmake
-.devcontainer/
+**/.devcontainer
 *.Generated.cs
 *.lst
-.env.local
-.secrets
@@ -1,6 +1,6 @@
 [submodule "externals"]
 	path = externals
-	url = https://bitbucket.org/bluetradesys/externals.git
+	url = git@bitbucket.org:bluetradesys/externals.git
 [submodule "vcpkg"]
 	path = vcpkg
 	url = https://github.com/microsoft/vcpkg.git
@@ -1,499 +0,0 @@
-{
-  "version": "0.2.0",
-  "configurations": [
-    {
-      "name": "Python Debugger: Current File with Arguments",
-      "type": "debugpy",
-      "request": "launch",
-      "program": "${file}",
-      "console": "integratedTerminal",
-      "args": "${command:pickArgs}"
-    },
-    {
-      "name": ".NET Core Attach",
-      "type": "coreclr",
-      "request": "attach"
-    },
-    {
-      "name": "Api Server",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "preLaunchTask": "Build Api Server (Debug)",
-      "windows": {
-        "program": "spark_api_server.exe",
-      },
-      "linux": {
-        "program": "spark_api_server",
-      },
-      "args": [
-        "run",
-      ],
-      "cwd": "build/Debug/bin/net8.0",
-      "env": {
-        "DOTNET_ENVIRONMENT": "${input:apiServerEnvironment}",
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
-    {
-      "name": "Api Server (Skip Build)",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "windows": {
-        "program": "spark_api_server.exe",
-      },
-      "linux": {
-        "program": "spark_api_server",
-      },
-      "args": [
-        "run",
-      ],
-      "cwd": "build/Debug/bin/net8.0",
-      "env": {
-        "DOTNET_ENVIRONMENT": "${input:apiServerEnvironment}",
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
-    {
-      "name": "DataStreamPublisher",
-      "type": "coreclr",
-      "request": "launch",
-      "preLaunchTask": "Build DataStream (Debug)",
-      "program": "",
-      "linux": {
-        "program": "DataStreamPublisher",
-      },
-      "windows": {
-        "program": "DataStreamPublisher.exe",
-      },
-      "cwd": "build/Debug/bin/net8.0",
-      "env": {
-        "DOTNET_ENVIRONMENT": "${input:dataStreamPublisherEnvironment}",
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
-    {
-      "name": "DataStreamPublisher (Skip Build)",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "linux": {
-        "program": "DataStreamPublisher",
-      },
-      "windows": {
-        "program": "DataStreamPublisher.exe",
-      },
-      "cwd": "${workspaceFolder}/build/Debug/bin/net8.0",
-      "env": {
-        "DOTNET_ENVIRONMENT": "${input:dataStreamPublisherEnvironment}",
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
-    {
-      "name": "(gdb) Launch",
-      "type": "cppdbg",
-      "request": "launch",
-      "program": "/home/bts/spark/build/sparkd-debug-clang/server/sparkd",
-      "args": [
-        "run"
-      ],
-      "stopAtEntry": false,
-      "cwd": "/home/bts/spark/build/sparkd-debug-clang/server",
-      "environment": [],
-      "externalConsole": false,
-      "MIMode": "gdb",
-    },
-    {
-      "name": "spreader tests2",
-      "type": "cppdbg",
-      "request": "launch",
-      "program": "/home/bts/spark/build/sparkd-debug-clang/server/sparkd",
-      "args": [
-        "test",
-        "[spreader2]"
-      ],
-      "stopAtEntry": false,
-      "cwd": "/home/bts/spark/build/sparkd-debug-clang/server",
-      "environment": [],
-      "externalConsole": false,
-      "MIMode": "gdb",
-    },
-    {
-      "name": "spreader tests",
-      "type": "cppdbg",
-      "request": "launch",
-      "program": "/home/bts/spark/build/sparkd-debug-clang/server/sparkd",
-      "args": [
-        "test",
-        "[spreader]"
-      ],
-      "stopAtEntry": false,
-      "cwd": "/home/bts/spark/build/sparkd-debug-clang/server",
-      "environment": [],
-      "externalConsole": false,
-      "MIMode": "gdb",
-    },
-    {
-      "name": "DataStreamQueryAnalyzer",
-      "type": "coreclr",
-      "request": "launch",
-      "preLaunchTask": "Build DataStream (Debug)",
-      "program": "",
-      "windows": {
-        "program": "DataStreamQueryAnalyzer.exe",
-        "cwd": "build/Debug/bin/net8.0-windows",
-        "env": {
-          "PYTHON_EXE": "${workspaceFolder}/.venv/Scripts/python.exe",
-          "DOTNET_ENVIRONMENT": "${input:dataStreamQueryAnalyzerEnvironment}",
-        },
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal",
-    },
-    {
-      "name": "DataStreamQueryAnalyzer (Skip Build)",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "windows": {
-        "program": "DataStreamQueryAnalyzer.exe",
-        "cwd": "build/Debug/bin/net8.0-windows",
-        "env": {
-          "PYTHON_EXE": "${workspaceFolder}/.venv/Scripts/python.exe",
-          "DOTNET_ENVIRONMENT": "${input:dataStreamQueryAnalyzerEnvironment}",
-        },
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal",
-    },
-    {
-      "name": "PubSubServer",
-      "type": "coreclr",
-      "request": "launch",
-      "preLaunchTask": "Build DataStream (Debug)",
-      "program": "",
-      "linux": {
-        "program": "PubSubServer",
-      },
-      "windows": {
-        "program": "PubSubServer.exe",
-      },
-      "cwd": "build/Debug/bin/net8.0",
-      "env": {
-        "DOTNET_ENVIRONMENT": "${input:pubSubServerEnvironment}",
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
-    {
-      "name": "PubSubServer (Skip Build)",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "linux": {
-        "program": "PubSubServer",
-      },
-      "windows": {
-        "program": "PubSubServer.exe",
-      },
-      "cwd": "build/Debug/bin/net8.0",
-      "env": {
-        "DOTNET_ENVIRONMENT": "${input:pubSubServerEnvironment}",
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
-    {
-      "name": "Sdk Demo",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "preLaunchTask": "Build Api Server (Debug)",
-      "windows": {
-        "program": "Bts.Spark.Sdk.Demo.exe",
-      },
-      "linux": {
-        "program": "Bts.Spark.Sdk.Demo",
-      },
-      "cwd": "build/Debug/bin/net8.0",
-      "env": {
-        "DOTNET_ENVIRONMENT": "${input:sdkDemoEnvironment}",
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
-    {
-      "name": "Sdk Demo (Skip Build)",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "windows": {
-        "program": "Bts.Spark.Sdk.Demo.exe",
-      },
-      "linux": {
-        "program": "Bts.Spark.Sdk.Demo.exe",
-      },
-      "cwd": "build/Debug/bin/net8.0",
-      "env": {
-        "DOTNET_ENVIRONMENT": "${input:sdkDemoEnvironment}",
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
-    {
-      "name": "Spark",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "windows": {
-        "preLaunchTask": "Build Spark (Debug)",
-        "program": "Spark.exe",
-        "cwd": "build/Debug/bin/net8.0-windows",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:sparkEnvironment}",
-        }
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
-    {
-      "name": "Spark (Skip Build)",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "windows": {
-        "program": "Spark.exe",
-        "cwd": "build/Debug/bin/net8.0-windows",
-        "env": {
-          "DOTNET_ENVIRONMENT": "${input:sparkEnvironment}",
-        }
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
-    {
-      "name": "Spark (Parameterized)",
-      "type": "coreclr",
-      "request": "launch",
-      "preLaunchTask": "Build Spark (Debug)",
-      "program": "",
-      "windows": {
-        "program": "Spark.exe",
-        "args": [
-          "--sparkd",
-          "${input:sparkConfigServer}"
-        ],
-        "cwd": "build/Debug/bin/net8.0-windows",
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
-    {
-      "name": "Spark Test",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "windows": {
-        "preLaunchTask": "Build Spark (Debug)",
-        "program": "Spark.Console.exe",
-        "cwd": "build/Debug/bin/net8.0",
-        "args": [
-          "test",
-          "${input:sparkTest}"
-        ]
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
-    {
-      "name": "Spark Test (Skip Build)",
-      "type": "coreclr",
-      "request": "launch",
-      "program": "",
-      "windows": {
-        "program": "Spark.Console.exe",
-        "cwd": "build/Debug/bin/net8.0",
-        "args": [
-          "test",
-          "${input:sparkTest}"
-        ]
-      },
-      "stopAtEntry": false,
-      "console": "integratedTerminal"
-    },
-    {
-      "name": "Sparkd",
-      "type": "cppdbg",
-      "request": "launch",
-      "program": "",
-      "linux": {
-        "program": "${workspaceFolder}/build/sparkd-debug-clang/src/app_sparkd/sparkd",
-        "preLaunchTask": "Build Sparkd (Debug | Clang)",
-      },
-      "args": [
-        "run"
-      ],
-      "cwd": "${workspaceFolder}/build/sparkd-debug-clang/src/app_sparkd",
-      "stopAtEntry": false,
-      "externalConsole": false,
-      "MIMode": "gdb",
-      "setupCommands": [
-        {
-          "description": "Enable pretty-printing for gdb",
-          "text": "-enable-pretty-printing",
-          "ignoreFailures": true
-        },
-        {
-          "description": "Set Disassembly Flavor to Intel",
-          "text": "-gdb-set disassembly-flavor intel",
-          "ignoreFailures": true
-        }
-      ]
-    },
-    {
-      "name": "Sparkd (Skip Build)",
-      "type": "cppdbg",
-      "request": "launch",
-      "program": "",
-      "linux": {
-        "program": "${workspaceFolder}/build/sparkd-debug-clang/src/app_sparkd/sparkd",
-      },
-      "args": [
-        "run"
-      ],
-      "cwd": "${workspaceFolder}/build/sparkd-debug-clang/src/app_sparkd",
-      "stopAtEntry": false,
-      "externalConsole": false,
-      "MIMode": "gdb",
-      "setupCommands": [
-        {
-          "description": "Enable pretty-printing for gdb",
-          "text": "-enable-pretty-printing",
-          "ignoreFailures": true
-        },
-        {
-          "description": "Set Disassembly Flavor to Intel",
-          "text": "-gdb-set disassembly-flavor intel",
-          "ignoreFailures": true
-        }
-      ]
-    },
-    {
-      "name": "Sparkd Attach",
-      "type": "cppdbg",
-      "request": "attach",
-      "program": "${workspaceFolder}/build/sparkd-debug-clang/src/app_sparkd/sparkd",
-      "MIMode": "gdb",
-      "setupCommands": [
-        {
-          "description": "Enable pretty-printing for gdb",
-          "text": "-enable-pretty-printing",
-          "ignoreFailures": true
-        },
-        {
-          "description": "Set Disassembly Flavor to Intel",
-          "text": "-gdb-set disassembly-flavor intel",
-          "ignoreFailures": true
-        }
-      ]
-    },
-  ],
-  "inputs": [
-    {
-      "id": "apiServerEnvironment",
-      "type": "pickString",
-      "description": "Api Server Configuration",
-      "options": [
-        "Development",
-        "Local",
-        "Staging",
-      ],
-      "default": "Development",
-    },
-    {
-      "id": "dataStreamPublisherConfig",
-      "type": "pickString",
-      "description": "Publisher Configuration",
-      "options": [
-        "MarketDataPublisher",
-        "SimpleEchoClient",
-        "SimpleTestDataPublisher",
-        "TestDataPublisher",
-      ],
-      "default": "MarketDataPublisher",
-    },
-    {
-      "id": "dataStreamQueryAnalyzerEnvironment",
-      "type": "pickString",
-      "description": "DataStreamQueryAnalyzer Configuration",
-      "options": [
-        "Development",
-        "Local",
-      ],
-      "default": "Development",
-    },
-    {
-      "id": "dataStreamPublisherEnvironment",
-      "type": "pickString",
-      "description": "DataStreamPublisher Configuration",
-      "options": [
-        "Local",
-        "ReplayMarketData",
-      ],
-      "default": "Local",
-    },
-    {
-      "id": "pubSubServerEnvironment",
-      "type": "pickString",
-      "description": "PubSubServer Configuration",
-      "options": [
-        "Development",
-        "EchoServer",
-        "Local",
-      ],
-      "default": "Development",
-    },
-    {
-      "id": "sdkDemoEnvironment",
-      "type": "pickString",
-      "description": "Sdk Demo Configuration",
-      "options": [
-        "Development",
-        "Local",
-        "Staging",
-      ],
-      "default": "Development",
-    },
-    {
-      "id": "sparkConfigServer",
-      "type": "promptString",
-      "description": "Config Server URL",
-      "default": "http://localhost:8000/config",
-    },
-    {
-      "id": "sparkEnvironment",
-      "type": "pickString",
-      "description": "Spark Configuration",
-      "options": [
-        "Development",
-        "Local",
-      ],
-      "default": "Development",
-    },
-    {
-      "id": "sparkTest",
-      "type": "promptString",
-      "description": "Test to run",
-    },
-    {
-      "id": "sparkdTest",
-      "type": "promptString",
-      "description": "Test to run",
-    },
-  ]
-}
@@ -1 +0,0 @@
-PYTHONPATH=/workspaces/spark/build/sparkd-debug-clang/src/lib_python_interop;/workspaces/spark/src/lib_python_interop/python_interop_plugins;/workspaces/spark/tools/py
@@ -1,102 +0,0 @@
-
-Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 17
-VisualStudioVersion = 17.0.31903.59
-MinimumVisualStudioVersion = 10.0.40219.1
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{827E0CD3-B72D-47B6-A68D-7590B98EB39B}"
-EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "cs", "cs", "{C5A3B5EA-BE9F-76E5-E9B8-8A22B289B295}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Spark.Core", "src\cs\Bts.Spark.Core\Bts.Spark.Core.csproj", "{E3BF9514-CB1A-4E07-A8DD-73300FD9726C}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Spark.Api", "src\cs\Bts.Spark.Api\Bts.Spark.Api.csproj", "{8949AF88-F1D3-4BC4-827F-B088B555F7B9}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Extensions.Hosting", "src\cs\Bts.Extensions.Hosting\Bts.Extensions.Hosting.csproj", "{37E4E890-D025-4729-90F9-6F95862F47BC}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Spark.Sdk", "src\cs\Bts.Spark.Sdk\Bts.Spark.Sdk.csproj", "{A5FF3FAF-43CB-496B-AF4B-F61EFD645579}"
-EndProject
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-EndProject
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-		Release|x64 = Release|x64
-		Release|x86 = Release|x86
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
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-		{8949AF88-F1D3-4BC4-827F-B088B555F7B9}.Release|x86.Build.0 = Release|x64
-		{37E4E890-D025-4729-90F9-6F95862F47BC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{37E4E890-D025-4729-90F9-6F95862F47BC}.Debug|Any CPU.Build.0 = Debug|Any CPU
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-		HideSolutionNode = FALSE
-	EndGlobalSection
-	GlobalSection(NestedProjects) = preSolution
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-		{E3BF9514-CB1A-4E07-A8DD-73300FD9726C} = {C5A3B5EA-BE9F-76E5-E9B8-8A22B289B295}
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-	EndGlobalSection
-EndGlobal
@@ -1,10 +1,7 @@
 cmake_minimum_required(VERSION 3.12)
 project(spark)
-include(GNUInstallDirs)
-include(${CMAKE_SOURCE_DIR}/cmake/GitVersion.cmake)
 set(CMAKE_CXX_STANDARD 20)

-get_version_from_git()
 if(WIN32)
  set(platform "windows")
 else()
@@ -17,17 +14,12 @@ set(
  CACHE
  STRING
  "External dependencies root folder (should contain folders: lib, bin, include")
-
-# SHARED_MEMORY_PREFIX serves as a kind of namespace so multiple applications
-# can run simultaneously without fighting over the same shm files (e.g., sparkd,
-# api server, etc.).
-set(SHARED_MEMORY_PREFIX "\${BTS_SHARED_MEMORY_PREFIX}" CACHE STRING "Prefix to use when creating shared memory files")
-set(EXTERNALS_BIN "${EXTERNALS_ROOT}/bin")
-set(EXTERNALS_INCLUDE "${EXTERNALS_ROOT}/include")
-set(EXTERNALS_LIB "${EXTERNALS_ROOT}/lib/$<CONFIG>")
+set(SPARK_BIN "${EXTERNALS_ROOT}/bin")
+set(SPARK_INCLUDE "${EXTERNALS_ROOT}/include")
+set(SPARK_LIB "${EXTERNALS_ROOT}/lib/$<CONFIG>")
+set(BUILD_API_SERVER OFF CACHE BOOL "Build the api server")
 set(BUILD_DOCS OFF CACHE BOOL "Build documentation")
 set(BUILD_SDK OFF CACHE BOOL "Build the sdk")
-set(EXPORT_MD_CONSUMER OFF CACHE BOOL "Export (extern) C functions for MD consumer interop")
 if (WIN32)
  set(BUILD_SPARKD OFF CACHE BOOL "Build sparkd")
  set(BUILD_ADMIN_WEB_APP OFF CACHE BOOL "Build the Admin WebApp")
@@ -36,19 +28,32 @@ else()
  set(BUILD_ADMIN_WEB_APP ON CACHE BOOL "Build the Admin WebApp")
 endif()

-include_directories(BEFORE SYSTEM ${EXTERNALS_INCLUDE} ${EXTERNALS_ROOT}/include/zlib)
-link_directories(${EXTERNALS_LIB})
+include_directories(BEFORE SYSTEM ${SPARK_INCLUDE} ${EXTERNALS_ROOT}/include/zlib)
+link_directories(${SPARK_LIB})

-add_compile_definitions(SHARED_MEMORY_PREFIX="${SHARED_MEMORY_PREFIX}")
-if(DEFINED APP_DATA_DIR)
-  add_compile_definitions(APP_DATA_DIR="${APP_DATA_DIR}")
+if(BUILD_API_SERVER)
+  add_compile_definitions(SPARK_ENABLE_API_SERVER)
 endif()
-add_compile_definitions(EXPORT_MD_CONSUMER="${EXPORT_MD_CONSUMER}")
+
 if(WIN32)
+  add_compile_definitions(SHARED_MEMORY_PREFIX="spark")
+  add_compile_definitions(APP_DATA_DIR="\$\{APPDATA\}/bts/")
  # subdirs
-  add_subdirectory(src/lib_spark)
+  add_subdirectory(src/lib)
 else()
-  if(BUILD_SPARKD)
+  # make sparkd look for libspark.so in its directory
+  set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
+  set(CMAKE_INSTALL_RPATH ".")
+  set(CMAKE_INSTALL_PREFIX "${CMAKE_SOURCE_DIR}/install")
+  set(SPARK_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}/$<CONFIG>")
+
+  if(BUILD_API_SERVER)
+    add_compile_definitions(APP_DATA_DIR="\$\{HOME\}/spark_api/")
+    add_compile_definitions(SHARED_MEMORY_PREFIX="spark_api")
+  elseif(BUILD_SPARKD)
+    add_compile_definitions(SHARED_MEMORY_PREFIX="sparkd")
+    add_compile_definitions(APP_DATA_DIR="\$\{HOME\}/sparkdata/")
+
    # Note: All macros that begin w/ 'CCAPI' are ccapi's macros (defined and/or
    # read by their code). We override some below.
    add_compile_definitions(SPARK_ENABLE_CCAPI)
@@ -85,15 +90,9 @@ else()
    add_compile_definitions(BINANCE_US_PRICE_STATS_PATH="/api/v3/ticker/24hr")

    # ** Binance USDS Futures **
-    add_compile_definitions(CCAPI_BINANCE_USDS_FUTURES_URL_REST_BASE="https://fapi.binance.com")
-    add_compile_definitions(BINANCE_USDS_FUTURES_INSTRUMENTS_PATH="/fapi/v1/exchangeInfo")
-    add_compile_definitions(BINANCE_USDS_FUTURES_PRICE_STATS_PATH="/fapi/v1/ticker/24hr")
-    add_compile_definitions(BINANCE_USDS_FUTURES_USER_DATA_PATH="/api/v3/userDataStream")
-
-    # ** Binance Coin Futures **
-    add_compile_definitions(CCAPI_BINANCE_COIN_FUTURES_URL_REST_BASE="https://dapi.binance.com")
-    add_compile_definitions(BINANCE_COIN_FUTURES_INSTRUMENTS_PATH="/dapi/v1/exchangeInfo")
-    add_compile_definitions(BINANCE_COIN_FUTURES_PRICE_STATS_PATH="/dapi/v1/ticker/24hr")
+    add_compile_definitions(CCAPI_BINANCE_USDS_FUTURES_URL_REST_BASE="https://dapi.binance.com")
+    add_compile_definitions(BINANCE_USDS_FUTURES_INSTRUMENTS_PATH="/dapi/v1/exchangeInfo")
+    add_compile_definitions(BINANCE_USDS_FUTURES_PRICE_STATS_PATH="/dapi/v1/ticker/24hr")

    # ** Deribit **
    add_compile_definitions(DERIBIT_INSTRUMENT_PATH="/api/v2/public/get_instrument")
@@ -112,15 +111,11 @@ else()
  endif()

  # subdirs
-  add_subdirectory(src/lib_spark)
  if (BUILD_SPARKD)
-    add_subdirectory(src/lib_python_interop)
-    add_subdirectory(src/lib_onixs_fix)
-    add_subdirectory(src/lib_binance)
-    add_subdirectory(src/lib_okx_execution)
-    add_subdirectory(src/app_sparkd)
+    add_subdirectory(src/server/sparkd)
    add_subdirectory(src/data_files)
  endif()
+  add_subdirectory(src/lib)
  if (BUILD_ADMIN_WEB_APP)
    add_subdirectory(src/Spark.Admin.WebApp)
  endif()
@@ -130,4 +125,32 @@ else()
  if(BUILD_SDK)
    add_subdirectory(src/sdk)
  endif()
+
+  if(BUILD_SPARKD)
+    add_custom_command(
+      OUTPUT ${CMAKE_BINARY_DIR}/server
+      COMMAND mkdir -p ${CMAKE_BINARY_DIR}/server
+      COMMAND ln ARGS -sf ${CMAKE_BINARY_DIR}/src/server/sparkd/sparkd ${CMAKE_BINARY_DIR}/server
+      COMMAND ln ARGS -sf ${CMAKE_BINARY_DIR}/data_files ${CMAKE_BINARY_DIR}/server
+      COMMAND ln ARGS -sf ${CMAKE_BINARY_DIR}/src/lib/libspark.so ${CMAKE_BINARY_DIR}/server
+      COMMAND
+        ln ARGS -sf
+        ${EXTERNALS_ROOT}/lib/Release/libOnixS.IceImpactMulticastPriceFeedHandlerCpp.so.3.16.0.0
+        ${CMAKE_BINARY_DIR}/server
+      COMMAND ln ARGS -sf ${EXTERNALS_ROOT}/lib/Release/libACE-5.7.5.so ${CMAKE_BINARY_DIR}/server
+      COMMAND mkdir ARGS -p ${CMAKE_BINARY_DIR}/server/plugins
+      COMMENT "Creating server runtime layout"
+      DEPENDS sparkd data_files_dir)
+
+    add_custom_target(server_layout ALL DEPENDS ${CMAKE_BINARY_DIR}/server)
+
+    install(
+      DIRECTORY "${CMAKE_BINARY_DIR}/server/plugins"
+      DESTINATION "${SPARK_INSTALL_PREFIX}/bin")
+    install(
+      FILES
+      "${SPARK_LIB}/libACE-5.7.5.so"
+      "${SPARK_LIB}/libOnixS.IceImpactMulticastPriceFeedHandlerCpp.so.3.16.0.0"
+      DESTINATION "${SPARK_INSTALL_PREFIX}/bin")
+  endif()
 endif()
@@ -8,31 +8,14 @@

  "configurePresets": [
    {
-      "name": "spark-base",
-      "hidden": true,
-      "binaryDir": "${sourceDir}/build/${presetName}",
-      "cacheVariables": {
-        "CMAKE_CXX_STANDARD": "20",
-        "CMAKE_INSTALL_PREFIX": "${sourceDir}/install/${presetName}",
-        "CMAKE_TOOLCHAIN_FILE": "${sourceDir}/vcpkg/scripts/buildsystems/vcpkg.cmake",
-        "CONFIG_DEFAULTS_PATH": "spark/config/profiles/default/*.conf",
-        "EXPORT_MD_CONSUMER": {
-          "type": "BOOL",
-          "value": "ON"
-        }
-      }
-    },
-
-    {
-      "name": "spark-windows",
-      "inherits": "spark-base",
-      "displayName": "Spark",
+      "name": "spark",
      "condition": {
        "type": "equals",
        "lhs": "${hostSystemName}",
        "rhs": "Windows"
      },
      "generator": "Visual Studio 17 2022",
+      "binaryDir": "${sourceDir}/build",
      "environment": {
        "SPARK_CMAKE_CXX_FLAGS": "/MP /WX /wd4250 /wd4251 /wd4244 /wd4267 /wd4355 /wd4275 /wd4345 /bigobj /EHsc /DCURL_STATICLIB /D_WINSOCK_DEPRECATED_NO_WARNINGS /D__TBB_NO_IMPLICIT_LINKAGE /DBOOST_ALL_NO_LIB /std:c++20 /D_SCL_SECURE_NO_WARNINGS /D_CRT_SECURE_NO_WARNINGS /D_WIN32_WINNT=0x0600"
      },
@@ -40,9 +23,14 @@
        "CMAKE_CXX_FLAGS": "$env{SPARK_CMAKE_CXX_FLAGS}",
        "CMAKE_CXX_FLAGS_DEBUG": "$env{SPARK_CMAKE_CXX_FLAGS} /MTd",
        "CMAKE_CXX_FLAGS_RELEASE": "$env{SPARK_CMAKE_CXX_FLAGS} /MT",
+        "CMAKE_CXX_STANDARD": "20",
        "CMAKE_SHARED_LINKER_FLAGS_DEBUG": "/DEBUG",
        "CMAKE_SHARED_LINKER_FLAGS_RELEASE": "/OPT:REF /OPT:ICF /LTCG",
-        "EXTERNALS_ROOT": "${sourceDir}/externals/windows"
+        "CMAKE_TOOLCHAIN_FILE": "${sourceDir}/vcpkg/scripts/buildsystems/vcpkg.cmake",
+        "EXTERNALS_ROOT": "${sourceDir}/externals/windows",
+        "CONFIG_DEFAULTS_PATH": "config/profiles/default/*.conf",
+        "DOTNET_BINARY_DIR": "${sourceDir}/build/$<CONFIG>/bin/net8.0",
+        "DOTNET_WINDOWS_BINARY_DIR": "${sourceDir}/build/$<CONFIG>/bin/net8.0-windows"
      }
    },

@@ -60,18 +48,12 @@
        "platform": "",
        "CMAKE_BUILD_WITH_INSTALL_RPATH": {
          "type": "BOOL",
-          "value": "OFF"
+          "value": "ON"
        },
        "CMAKE_CXX_STANDARD": "20",
        "CMAKE_INSTALL_RPATH": ".",
-        "CMAKE_INSTALL_PREFIX": "${sourceDir}/install/${presetName}",
-        "CMAKE_PREFIX_PATH": "${sourceDir}/cmake/;${sourceDir}/.venv/lib/python3.10/site-packages/pybind11/share/cmake/pybind11",
+        "CMAKE_INSTALL_PREFIX": "${sourceDir}/install/${presetName}/sparkd",
        "CMAKE_EXE_LINKER_FLAGS": "-Wno-undef",
-        "CMAKE_TOOLCHAIN_FILE": "${sourceDir}/vcpkg/scripts/buildsystems/vcpkg.cmake",
-        "DATABENTO_USE_EXTERNAL_JSON": {
-          "type": "BOOL",
-          "value": "ON"
-        },
        "EXTERNALS_ROOT": "${sourceDir}/externals/linux",
        "BUILD_SDK": {
          "type": "BOOL",
@@ -95,7 +77,7 @@
          "value": "ON"
        },
        "CCAPI_LOG_LEVEL": "Info",
-        "CONFIG_DEFAULTS_PATH": "spark/config/profiles/md_dev/*.conf;spark/config/profiles/default/*.conf"
+        "CONFIG_DEFAULTS_PATH": "config/profiles/md_dev/*.conf;config/profiles/default/*.conf"
      }
    },

@@ -106,79 +88,106 @@
      "cacheVariables": {
        "CMAKE_BUILD_TYPE": "Release",
        "CCAPI_LOG_LEVEL": "Warn",
-        "CONFIG_DEFAULTS_PATH": "spark/config/profiles/md_prod/*.conf;spark/config/profiles/default/*.conf"
+        "CONFIG_DEFAULTS_PATH": "config/profiles/md_prod/*.conf;config/profiles/default/*.conf"
      }
    },

    {
      "name": "sparkd-debug-clang",
      "inherits": "sparkd-debug",
-      "displayName": "Sparkd (Debug | Clang)",
+      "displayName": "Debug (clang)",
      "description": "Debug build compiled w/ clang",
+      "binaryDir": "${sourceDir}/build/clang/debug",
      "cacheVariables": {
        "CMAKE_C_COMPILER": "clang",
        "CMAKE_CXX_COMPILER": "clang++",
-        "CMAKE_CXX_FLAGS_DEBUG": "-g -fPIC -Wall -pedantic -Wextra -Werror -Wno-missing-braces -Wno-ignored-qualifiers --std=c++20 -fdiagnostics-color -DDEBUG"
+        "CMAKE_CXX_FLAGS_DEBUG": "-g -fPIC -Wall -pedantic -Wextra -Werror -Wno-missing-braces -Wno-ignored-qualifiers --std=c++20 -fdiagnostics-color -DDEBUG",
+        "CMAKE_INSTALL_PREFIX": "${sourceDir}/install/clang/debug/sparkd"
      }
    },

    {
      "name": "sparkd-debug-gcc",
      "inherits": "sparkd-debug",
-      "displayName": "Sparkd (Debug | Gcc)",
+      "displayName": "Debug (gcc)",
      "description": "Debug build compiled w/ gcc",
+      "binaryDir": "${sourceDir}/build/gcc/debug",
      "cacheVariables": {
        "CMAKE_C_COMPILER": "gcc",
        "CMAKE_CXX_COMPILER": "g++",
-        "CMAKE_CXX_FLAGS_DEBUG": "-g -fPIC -Wall -pedantic -Wextra -Werror -Wno-missing-braces -Wno-ignored-qualifiers --std=c++20 -fdiagnostics-color -Wno-stringop-overread -DDEBUG"
+        "CMAKE_CXX_FLAGS_DEBUG": "-g -fPIC -Wall -pedantic -Wextra -Werror -Wno-missing-braces -Wno-ignored-qualifiers --std=c++20 -fdiagnostics-color -Wno-stringop-overread -DDEBUG",
+        "CMAKE_INSTALL_PREFIX": "${sourceDir}/install/gcc/debug/sparkd"
      }
    },

    {
      "name": "sparkd-release-clang",
      "inherits": "sparkd-release",
-      "displayName": "Sparkd (Release | Clang)",
+      "displayName": "Release (clang)",
      "description": "Release build compiled w/ clang",
+      "binaryDir": "${sourceDir}/build/clang/release",
      "cacheVariables": {
        "CMAKE_C_COMPILER": "clang",
        "CMAKE_CXX_COMPILER": "clang++",
-        "CMAKE_CXX_FLAGS_RELEASE": "-fPIC -Wall -pedantic -Wextra -Werror -Wno-missing-braces -Wno-ignored-qualifiers --std=c++20 -fdiagnostics-color -fno-omit-frame-pointer -DNDEBUG -O3"
+        "CMAKE_CXX_FLAGS_RELEASE": "-fPIC -Wall -pedantic -Wextra -Werror -Wno-missing-braces -Wno-ignored-qualifiers --std=c++20 -fdiagnostics-color -fno-omit-frame-pointer -DNDEBUG -O3",
+        "CMAKE_INSTALL_PREFIX": "${sourceDir}/install/clang/release/sparkd"
      }
    },

    {
      "name": "sparkd-release-gcc",
      "inherits": "sparkd-release",
-      "displayName": "Sparkd (Release | Gcc)",
+      "displayName": "Release (gcc)",
      "description": "Release build compiled w/ gcc",
+      "binaryDir": "${sourceDir}/build/gcc/release",
      "cacheVariables": {
        "CMAKE_C_COMPILER": "gcc",
        "CMAKE_CXX_COMPILER": "g++",
-        "CMAKE_CXX_FLAGS_RELEASE": "-fPIC -Wall -pedantic -Wextra -Werror -Wno-missing-braces -Wno-ignored-qualifiers -Wno-stringop-overflow --std=c++20 -fdiagnostics-color -Wno-stringop-overread -Wno-maybe-uninitialized -fno-omit-frame-pointer -DNDEBUG -O3"
+        "CMAKE_CXX_FLAGS_RELEASE": "-fPIC -Wall -pedantic -Wextra -Werror -Wno-missing-braces -Wno-ignored-qualifiers -Wno-stringop-overflow --std=c++20 -fdiagnostics-color -Wno-stringop-overread -Wno-maybe-uninitialized -fno-omit-frame-pointer -DNDEBUG -O3",
+        "CMAKE_INSTALL_PREFIX": "${sourceDir}/install/gcc/release/sparkd"
      }
    },

    {
-      "name": "spark-linux",
-      "inherits": "spark-base",
-      "displayName": "Spark",
-      "condition": {
-        "type": "equals",
-        "lhs": "${hostSystemName}",
-        "rhs": "Linux"
-      },
+      "name": "spark-api-server-base",
+      "hidden": true,
+      "binaryDir": "${sourceDir}/build/${presetName}",
+      "cacheVariables": {
+        "BUILD_API_SERVER": {
+          "type": "bool",
+          "value": "ON"
+        },
+        "CONFIG_DEFAULTS_PATH": "config/profiles/md_dev/*.conf;config/profiles/default/*.conf"
+      }
+    },
+
+    {
+      "name": "spark-api-server-windows",
+      "inherits": "spark",
+      "displayName": "Spark Api Server",
+      "cacheVariables": {
+        "BUILD_API_SERVER": {
+          "type": "bool",
+          "value": "ON"
+        }
+      }
+    },
+
+    {
+      "name": "spark-api-server-linux",
+      "inherits": "sparkd",
+      "displayName": "Spark Api Server",
      "generator": "Ninja Multi-Config",
      "cacheVariables": {
-        "platform": "linux",
        "BUILD_ADMIN_WEB_APP": {
          "type": "BOOL",
          "value": "OFF"
        },
-        "BUILD_SPARKD": {
-          "type": "BOOL",
-          "value": "OFF"
+        "BUILD_API_SERVER": {
+          "type": "bool",
+          "value": "ON"
        },
-        "CMAKE_BUILD_WITH_INSTALL_RPATH": {
+        "BUILD_SPARKD": {
          "type": "BOOL",
          "value": "OFF"
        },
@@ -186,18 +195,9 @@
        "CMAKE_CXX_COMPILER": "clang++",
        "CMAKE_CXX_FLAGS_DEBUG": "-g -fPIC -Wall -pedantic -Wextra -Werror -Wno-missing-braces -Wno-ignored-qualifiers --std=c++20 -fdiagnostics-color -DDEBUG",
        "CMAKE_CXX_FLAGS_RELEASE": "-fPIC -Wall -pedantic -Wextra -Werror -Wno-missing-braces -Wno-ignored-qualifiers --std=c++20 -fdiagnostics-color -fno-omit-frame-pointer -DNDEBUG -O3",
-        "CMAKE_EXE_LINKER_FLAGS": "-Wno-undef",
-        "CMAKE_EXPORT_COMPILE_COMMANDS": {
-          "type": "BOOL",
-          "value": "ON"
-        },
-        "CMAKE_INSTALL_RPATH": ".",
-        "CMAKE_PREFIX_PATH": "${sourceDir}/cmake/;${sourceDir}/.venv/lib/python3.10/site-packages/pybind11/share/cmake/pybind11",
-        "DATABENTO_USE_EXTERNAL_JSON": {
-          "type": "BOOL",
-          "value": "ON"
-        },
-        "EXTERNALS_ROOT": "${sourceDir}/externals/linux"
+        "CMAKE_INSTALL_PREFIX": "${sourceDir}/install/${presetName}",
+        "CONFIG_DEFAULTS_PATH": "config/profiles/default/*.conf",
+        "DOTNET_BINARY_DIR": "${sourceDir}/build/$<CONFIG>/bin/net8.0"
      }
    },

@@ -217,32 +217,44 @@
      "cacheVariables": {
        "CCAPI_LOG_LEVEL": "Trace"
      }
+    },
+
+    {
+      "name": "data-stream-suite",
+      "inherits": "spark",
+      "displayName": "Data Stream Suite",
+      "description": "Data Stream utils ported over from Edge",
+      "binaryDir": "${sourceDir}/build/${presetName}",
+      "cacheVariables": {
+        "CONFIG_DEFAULTS_PATH": "config/profiles/default/*.conf;config/profiles/data_stream/*.conf"
+      }
    }
  ],

  "buildPresets": [
    {
-      "name": "spark-windows",
+      "name": "spark",
      "condition": {
        "type": "equals",
        "lhs": "${hostSystemName}",
        "rhs": "Windows"
      },
-      "hidden": true,
-      "configurePreset": "spark-windows"
+      "hidden": true
    },

    {
-      "name": "spark-windows-debug",
-      "displayName": "Spark (Debug)",
-      "inherits": "spark-windows",
+      "name": "spark-debug",
+      "displayName": "Debug",
+      "inherits": "spark",
+      "configurePreset": "spark",
      "configuration": "Debug"
    },

    {
-      "name": "spark-windows-release",
-      "displayName": "Spark (Release)",
-      "inherits": "spark-windows",
+      "name": "spark-release",
+      "displayName": "Release",
+      "inherits": "spark",
+      "configurePreset": "spark",
      "configuration": "Release"
    },

@@ -253,59 +265,93 @@
        "lhs": "${hostSystemName}",
        "rhs": "Linux"
      },
-      "hidden": true
+      "hidden": true,
+      "targets": [
+        "data_files_dir",
+        "admin_web_app_bundle",
+        "install",
+        "libspark",
+        "rapidjson_project",
+        "server_layout",
+        "sparkd"
+      ]
    },

    {
      "name": "sparkd-debug-clang",
      "configurePreset": "sparkd-debug-clang",
-      "displayName": "Sparkd (Debug | Clang)",
+      "displayName": "Debug (clang)",
      "inherits": "sparkd"
    },

    {
      "name": "sparkd-debug-gcc",
      "configurePreset": "sparkd-debug-gcc",
-      "displayName": "Sparkd (Debug | Gcc)",
+      "displayName": "Debug (gcc)",
      "inherits": "sparkd"
    },

    {
      "name": "sparkd-release-clang",
      "configurePreset": "sparkd-release-clang",
-      "displayName": "Sparkd (Release | Clang)",
+      "displayName": "Release (clang)",
      "inherits": "sparkd"
    },

    {
      "name": "sparkd-release-gcc",
      "configurePreset": "sparkd-release-gcc",
-      "displayName": "Sparkd (Release | Gcc)",
+      "displayName": "Release (gcc)",
      "inherits": "sparkd"
    },

    {
-      "name": "spark-linux",
+      "name": "spark-api-server-windows",
+      "condition": {
+        "type": "equals",
+        "lhs": "${hostSystemName}",
+        "rhs": "Windows"
+      },
+      "hidden": true,
+      "configurePreset": "spark-api-server-windows"
+    },
+
+    {
+      "name": "spark-api-server-windows-debug",
+      "displayName": "Spark Api Server (Debug)",
+      "inherits": "spark-api-server-windows",
+      "configuration": "Debug"
+    },
+
+    {
+      "name": "spark-api-server-windows-release",
+      "displayName": "Spark Api Server (Debug)",
+      "inherits": "spark-api-server-windows",
+      "configuration": "Release"
+    },
+
+    {
+      "name": "spark-api-server-linux",
      "condition": {
        "type": "equals",
        "lhs": "${hostSystemName}",
        "rhs": "Linux"
      },
      "hidden": true,
-      "configurePreset": "spark-linux"
+      "configurePreset": "spark-api-server-linux"
    },

    {
-      "name": "spark-linux-debug",
-      "inherits": "spark-linux",
-      "displayName": "Spark (Linux | Debug)",
+      "name": "spark-api-server-linux-debug",
+      "inherits": "spark-api-server-linux",
+      "displayName": "Spark Api Server (Debug)",
      "configuration": "Debug"
    },

    {
-      "name": "spark-linux-release",
-      "inherits": "spark-linux",
-      "displayName": "Spark (Linux | Release)",
+      "name": "spark-api-server-linux-release",
+      "inherits": "spark-api-server-linux",
+      "displayName": "Spark Api Server (Release)",
      "configuration": "Release"
    },

@@ -322,6 +368,20 @@
      "configurePreset": "sparkd-ccapi-diag",
      "displayName": "Debug (ccapi diag)",
      "inherits": "sparkd"
+    },
+
+    {
+      "name": "data-stream-suite-debug",
+      "displayName": "DataStreamSuite (Debug)",
+      "configurePreset": "data-stream-suite",
+      "configuration": "Debug"
+    },
+
+    {
+      "name": "data-stream-suite-release",
+      "displayName": "DataStreamSuite (Release)",
+      "configurePreset": "data-stream-suite",
+      "configuration": "Release"
    }
  ]
 }
@@ -1,11 +1,10 @@
-
-Microsoft Visual Studio Solution File, Format Version 12.00
+Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.3.32922.545
 MinimumVisualStudioVersion = 15.0.26124.0
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Bts.Spark.Api", "src\cs\Bts.Spark.Api\Bts.Spark.Api.csproj", "{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "spark_api", "src\client\spark_api\spark_api.csproj", "{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}"
 EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Bts.Spark.Core", "src\cs\Bts.Spark.Core\Bts.Spark.Core.csproj", "{6E449EB6-20AC-4FA6-B8D9-10F4BB7E1FEE}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "spark_core", "src\client\spark_core\spark_core.csproj", "{6E449EB6-20AC-4FA6-B8D9-10F4BB7E1FEE}"
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "spark_websocket", "src\client\spark_websocket\spark_websocket.csproj", "{3201359D-C071-4089-9EDE-B04D759F1508}"
 EndProject
@@ -15,584 +14,66 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "spark_test", "src\client\sp
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Spark.Console", "src\client\Spark.Console\Spark.Console.csproj", "{89D666E6-B500-498F-B026-4D167F68ADFC}"
 EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{267F81EF-A8AB-49FD-9F56-D7EC3C1F7C7C}"
-EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "DataStreamSuite", "DataStreamSuite", "{C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DataStreamCore", "src\DataStreamSuite\DataStreamCore\DataStreamCore.csproj", "{EF26A475-6101-4C9C-A717-D60BB92A2302}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SharedStreams", "src\DataStreamSuite\SharedStreams\SharedStreams.csproj", "{911B08A3-515A-441D-84C8-8A43740B5FC1}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PubSub", "src\DataStreamSuite\PubSub\PubSub.csproj", "{14140310-2233-430A-821B-F3058A25234B}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BaseUtilities", "src\DataStreamSuite\BaseUtilities\BaseUtilities.csproj", "{43146EA8-6FCC-46B8-88B0-42F9BB5E6E0A}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ExpressionCore", "src\DataStreamSuite\ExpressionCore\ExpressionCore.csproj", "{6F22DB96-6EAB-4034-99D9-287021C36F01}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ArithmeticExpressions", "src\DataStreamSuite\ArithmeticExpressions\ArithmeticExpressions.csproj", "{A5C33956-A41F-49B3-A41D-1082CBA59D02}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DataStreamExpressions", "src\DataStreamSuite\DataStreamExpressions\DataStreamExpressions.csproj", "{2FE745C3-1EDF-4421-8CD7-A63EE0C1AE43}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.ColumnSortExpressions", "src\DataStreamSuite\Bts.ColumnSortExpressions\Bts.ColumnSortExpressions.csproj", "{FDA791E0-2B91-4AD5-B91D-CF920A4C4E38}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ColumnMapExpressions", "src\DataStreamSuite\ColumnMapExpressions\ColumnMapExpressions.csproj", "{B945A183-2174-4ACB-B289-8A5C546656FE}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BooleanExpressions", "src\DataStreamSuite\BooleanExpressions\BooleanExpressions.csproj", "{9F6D7DE8-185B-4C1D-B809-3314D092DF28}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.ColumnExpressions", "src\DataStreamSuite\Bts.ColumnExpressions\Bts.ColumnExpressions.csproj", "{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DataStream", "src\DataStreamSuite\DataStream\DataStream.csproj", "{39AEA075-6457-46C0-8821-1158BE6EFA57}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Extensions.Hosting", "src\cs\Bts.Extensions.Hosting\Bts.Extensions.Hosting.csproj", "{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}"
-EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "cs", "cs", "{385C4948-E080-56A6-E29E-8B0F4913175C}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Net", "src\cs\Bts.Net\Bts.Net.csproj", "{43FB297B-7A4D-4835-A878-E6DF345B580C}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.IO.Compression", "src\cs\Bts.IO.Compression\Bts.IO.Compression.csproj", "{BC277499-8215-4F9F-B9AB-07B6391110BF}"
-EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|x64 = Debug|x64
-		Debug|Any CPU = Debug|Any CPU
-		Debug|x86 = Debug|x86
 		MinSizeRel|x64 = MinSizeRel|x64
-		MinSizeRel|Any CPU = MinSizeRel|Any CPU
-		MinSizeRel|x86 = MinSizeRel|x86
 		Release|x64 = Release|x64
-		Release|Any CPU = Release|Any CPU
-		Release|x86 = Release|x86
 		RelWithDebInfo|x64 = RelWithDebInfo|x64
-		RelWithDebInfo|Any CPU = RelWithDebInfo|Any CPU
-		RelWithDebInfo|x86 = RelWithDebInfo|x86
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
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-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.Debug|x86.ActiveCfg = Debug|Any CPU
-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.Debug|x86.Build.0 = Debug|Any CPU
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-		{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}.Release|Any CPU.Build.0 = Release|Any CPU
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-		{6E449EB6-20AC-4FA6-B8D9-10F4BB7E1FEE}.Release|x86.Build.0 = Release|Any CPU
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-		{6E449EB6-20AC-4FA6-B8D9-10F4BB7E1FEE}.RelWithDebInfo|x86.Build.0 = RelWithDebInfo|Any CPU
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-		{39AEA075-6457-46C0-8821-1158BE6EFA57}.RelWithDebInfo|x86.Build.0 = RelWithDebInfo|Any CPU
-		{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}.Debug|x64.Build.0 = Debug|Any CPU
-		{F3DC52D7-8C59-4EC0-86D9-0E5732EAFCF7}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
-	GlobalSection(NestedProjects) = preSolution
-		{C09ED521-D2DF-40BC-A76F-EB3CB870B2F6} = {267F81EF-A8AB-49FD-9F56-D7EC3C1F7C7C}
-		{EF26A475-6101-4C9C-A717-D60BB92A2302} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
-		{911B08A3-515A-441D-84C8-8A43740B5FC1} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
-		{14140310-2233-430A-821B-F3058A25234B} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
-		{43146EA8-6FCC-46B8-88B0-42F9BB5E6E0A} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
-		{6F22DB96-6EAB-4034-99D9-287021C36F01} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
-		{A5C33956-A41F-49B3-A41D-1082CBA59D02} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
-		{2FE745C3-1EDF-4421-8CD7-A63EE0C1AE43} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
-		{FDA791E0-2B91-4AD5-B91D-CF920A4C4E38} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
-		{B945A183-2174-4ACB-B289-8A5C546656FE} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
-		{9F6D7DE8-185B-4C1D-B809-3314D092DF28} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
-		{6BD3F6D8-B6FC-44E8-B8FE-06352F638B9B} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
-		{39AEA075-6457-46C0-8821-1158BE6EFA57} = {C09ED521-D2DF-40BC-A76F-EB3CB870B2F6}
-		{385C4948-E080-56A6-E29E-8B0F4913175C} = {267F81EF-A8AB-49FD-9F56-D7EC3C1F7C7C}
-		{43FB297B-7A4D-4835-A878-E6DF345B580C} = {385C4948-E080-56A6-E29E-8B0F4913175C}
-		{BC277499-8215-4F9F-B9AB-07B6391110BF} = {385C4948-E080-56A6-E29E-8B0F4913175C}
-	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {422D1620-0166-4C26-9A81-CA8A2EB1AB58}
 	EndGlobalSection
@@ -1,7 +0,0 @@
-include_guard(GLOBAL)
-
-macro(export_to_parent)
-  foreach(var IN ITEMS ${ARGN})
-    set(${var} ${${var}} PARENT_SCOPE)
-  endforeach()
-endmacro()
@@ -1,48 +0,0 @@
-include_guard(GLOBAL)
-
-function(get_version_from_git)
-  find_package(Git QUIET)
-  if(NOT Git_FOUND)
-    message(WARNING "Git not found")
-    return()
-  endif()
-
-  execute_process(
-    COMMAND ${GIT_EXECUTABLE} describe --tags --always
-    WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
-    OUTPUT_VARIABLE GIT_TAG
-    OUTPUT_STRIP_TRAILING_WHITESPACE
-    RESULT_VARIABLE GIT_RESULT
-  )
-
-  if(NOT GIT_RESULT EQUAL 0)
-    message(WARNING "Failed to get git tag")
-    return()
-  endif()
-
-  execute_process(
-    COMMAND ${GIT_EXECUTABLE} rev-parse --short=7 HEAD
-    WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
-    OUTPUT_VARIABLE GIT_COMMIT_SHORT_HASH
-    OUTPUT_STRIP_TRAILING_WHITESPACE
-  )
-  set(PROJECT_VERSION_BUILD_METADATA ${GIT_COMMIT_SHORT_HASH})
-  set(PROJECT_VERSION_BUILD_METADATA ${GIT_COMMIT_SHORT_HASH} PARENT_SCOPE)
-
-  string(REGEX REPLACE "^v" "" CLEAN_TAG "${GIT_TAG}")
-  if(CLEAN_TAG MATCHES "^([0-9]+)\\.([0-9]+)\\.([0-9]+)(-.*)?$")
-    set(PROJECT_VERSION_MAJOR ${CMAKE_MATCH_1})
-    set(PROJECT_VERSION_MAJOR ${CMAKE_MATCH_1} PARENT_SCOPE)
-    set(PROJECT_VERSION_MINOR ${CMAKE_MATCH_2})
-    set(PROJECT_VERSION_MINOR ${CMAKE_MATCH_2} PARENT_SCOPE)
-    set(PROJECT_VERSION_PATCH ${CMAKE_MATCH_3})
-    set(PROJECT_VERSION_PATCH ${CMAKE_MATCH_3} PARENT_SCOPE)
-
-    set(PROJECT_VERSION "${CMAKE_MATCH_1}.${CMAKE_MATCH_2}.${CMAKE_MATCH_3}") 
-    set(PROJECT_VERSION "${CMAKE_MATCH_1}.${CMAKE_MATCH_2}.${CMAKE_MATCH_3}" PARENT_SCOPE)
-    set(PROJECT_VERSION_FULL "${CMAKE_MATCH_1}.${CMAKE_MATCH_2}.${CMAKE_MATCH_3}+${GIT_COMMIT_SHORT_HASH}")
-    set(PROJECT_VERSION_FULL "${CMAKE_MATCH_1}.${CMAKE_MATCH_2}.${CMAKE_MATCH_3}+${GIT_COMMIT_SHORT_HASH}" PARENT_SCOPE)
-  else()
-    message(WARNING "Tag '${CLEAN_TAG}' does not match semver format")
-  endif()
-endfunction()
@@ -1,142 +0,0 @@
-include_guard(DIRECTORY)
-include(${CMAKE_SOURCE_DIR}/cmake/ExportToParent.cmake)
-include(${CMAKE_SOURCE_DIR}/cmake/InstallBasic.cmake)
-include(${CMAKE_SOURCE_DIR}/cmake/ProtobufGenerateCpp.cmake)
-include(${CMAKE_SOURCE_DIR}/cmake/SetFirstDefined.cmake)
-include(${CMAKE_SOURCE_DIR}/cmake/safe_dep_glob.cmake)
-
-function(init_library)
-  set(_options SHARED STATIC)
-  set(_one_value_args
-    NAME
-    SOURCE_DIR
-    INCLUDE_DIR
-  )
-  set(_multi_value_args)
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-  if (_ARGS_SHARED AND _ARGS_STATIC)
-    message(FATAL_ERROR "Invalid args passed to init_library: cannot specify STATIC and SHARED")
-  endif()
-  set_first_defined(_name _ARGS_NAME PROJECT_NAME)
-  set_first_defined(_source_dir _ARGS_SOURCE_DIR _name)
-  set_first_defined(_include_dir _ARGS_INCLUDE_DIR _source_dir)
-
-  # Cpp sources
-  file(
-    GLOB_RECURSE ${_name}_SOURCES
-    RELATIVE ${CMAKE_CURRENT_SOURCE_DIR}
-    ${_source_dir}/*.cpp
-  )
-  # Note: cpp files inside 'tests' dir(s) are considered tests.
-  # Remove tests from main sources, and add them to test sources
-  foreach(item ${${_name}_SOURCES})
-    if(${item} MATCHES "tests/.*\.cpp$")
-      list(APPEND ${_name}_TEST_SOURCES ${item})
-    endif()
-  endforeach()
-  foreach(item ${${_name}_TEST_SOURCES})
-    list(REMOVE_ITEM ${_name}_SOURCES ${item})
-  endforeach()
-
-  # Proto sources 
-  file(
-    GLOB_RECURSE ${_name}_PROTO_SOURCES
-    RELATIVE ${CMAKE_CURRENT_SOURCE_DIR}
-    ${_source_dir}/protobufs/*.proto
-  )
-  update_deps_file("${${_name}_PROTO_SOURCES};")
-  protobuf_generate_cpp(
-    CXX_SOURCES ${_name}_CXX_PROTO_SOURCES
-    CXX_HEADERS ${_name}_CXX_PROTO_HEADERS
-    CXX_OUT_DIR ${CMAKE_CURRENT_BINARY_DIR}
-    PROTO_INCLUDE_DIRS
-      ${EXTERNALS_INCLUDE}
-      ${CMAKE_CURRENT_SOURCE_DIR}
-    PROTO_SOURCES
-      ${${_name}_PROTO_SOURCES}
-  )
-
-  export_to_parent(
-    ${_name}_SOURCES
-    ${_name}_TEST_SOURCES
-    ${_name}_PROTO_SOURCES
-    ${_name}_CXX_PROTO_SOURCES
-    ${_name}_CXX_PROTO_HEADERS
-  )
-
-  # Add main lib
-  if (_ARGS_STATIC)
-    add_library(${_name} STATIC ${${_name}_SOURCES} ${${_name}_CXX_PROTO_SOURCES})
-  elseif(_ARGS_SHARED)
-    add_library(${_name} SHARED ${${_name}_SOURCES} ${${_name}_CXX_PROTO_SOURCES})
-  else()
-    add_library(${_name} ${${_name}_SOURCES} ${${_name}_CXX_PROTO_SOURCES})
-  endif()
-  target_include_directories(
-    ${_name}
-    SYSTEM
-    BEFORE
-    PUBLIC
-      $<BUILD_INTERFACE:${EXTERNALS_ROOT}/include>
-      $<BUILD_INTERFACE:${EXTERNALS_ROOT}/include/zlib>
-  )
-  target_include_directories(
-    ${_name}
-    PUBLIC
-      $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
-      $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
-  )
-  # Include protos (if any)
-  if (${_name}_PROTO_SOURCES)
-    target_include_directories(
-      ${_name}
-      PUBLIC
-        $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>
-    )
-  endif()
-  target_link_directories(
-    ${_name}
-    PUBLIC
-      $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>
-      $<BUILD_INTERFACE:${EXTERNALS_ROOT}/lib/$<CONFIG>>
-      $<INSTALL_INTERFACE:${CMAKE_INSTALL_LIBDIR}>
-  )
-  # Install main lib
-  foreach(_hdr ${${_name}_CXX_PROTO_HEADERS})
-    file(RELATIVE_PATH _relative_path ${CMAKE_CURRENT_BINARY_DIR} ${_hdr})
-    install(FILES ${_hdr} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/${_relative_path})
-  endforeach()
-  install_basic(
-    NAME ${_name}
-    INCLUDE_DIR ${_include_dir}
-  )
-
-  # Add tests executable (if there are any)
-  if (${_name}_TEST_SOURCES AND NOT WIN32)
-    add_executable(${_name}-tests ${${_name}_TEST_SOURCES})
-
-    get_target_property(_lib_type ${_name} TYPE)
-    if (_lib_type STREQUAL "SHARED_LIBRARY")
-      # Set RPATH so the tests exe knows where to find the shared lib.
-      set_target_properties(
-        ${_name}-tests
-        PROPERTIES
-          BUILD_RPATH "$ORIGIN"
-          INSTALL_RPATH "$ORIGIN/../${CMAKE_INSTALL_LIBDIR}"
-      )
-    endif()
-
-    # Link main lib
-    target_link_directories(
-      ${_name}-tests
-      PRIVATE
-        $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>
-        $<INSTALL_INTERFACE:${CMAKE_INSTALL_LIBDIR}>
-    )
-    target_link_libraries(${_name}-tests PRIVATE ${_name})
-
-    # Catch2
-    find_package(Catch2 CONFIG REQUIRED COMPONENTS Catch2WithMain)
-    target_link_libraries(${_name}-tests PRIVATE Catch2::Catch2WithMain)
-  endif()
-endfunction()
@@ -1,71 +0,0 @@
-include_guard(DIRECTORY)
-include(GNUInstallDirs)
-include(${CMAKE_SOURCE_DIR}/cmake/ExportToParent.cmake)
-include(${CMAKE_SOURCE_DIR}/cmake/SetFirstDefined.cmake)
-
-function(init_python_module)
-  set(_options)
-  set(_one_value_args
-    NAME
-  )
-  set(_multi_value_args
-    SOURCES
-  )
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-  set_first_defined(_name _ARGS_NAME PROJECT_NAME)
-  set_first_defined(_sources _ARGS_SOURCES ${_name}_SOURCES)
-
-  set(module_proj ${_name}_module)
-  set(${module_proj}_SOURCES ${_sources})
-  pybind11_add_module(${module_proj} SHARED ${_sources})
-  target_link_libraries(
-    ${module_proj}
-    PUBLIC
-      pybind11::embed
-      spark
-      ${_name}
-  )
-  target_include_directories(
-    ${module_proj}
-    PRIVATE
-      $<BUILD_INTERFACE:${pybind11_INCLUDE_DIRS}>
-  )
-  target_include_directories(
-    ${module_proj}
-    PUBLIC
-      ${Python3_INCLUDE_DIRS}
-      $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
-      $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
-  )
-  add_custom_command(
-    OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/stubs/${_name}.pyi
-    DEPENDS ${_name} ${module_proj}
-    COMMAND PYTHONPATH=${CMAKE_CURRENT_BINARY_DIR} pybind11-stubgen --numpy-array-use-type-var --ignore-invalid-expressions '.*' ${_name}_module
-    COMMENT "Generating py stubs"
-  )
-  add_custom_target(
-    "${_name}_py_stubs"
-    ALL
-    DEPENDS
-      ${CMAKE_CURRENT_BINARY_DIR}/stubs/${_name}.pyi
-  )
-  install(
-    TARGETS ${module_proj}
-    EXPORT ${module_proj}Targets
-    RUNTIME
-      DESTINATION ${CMAKE_INSTALL_BINDIR}
-    LIBRARY
-      DESTINATION ${CMAKE_INSTALL_LIBDIR}
-    ARCHIVE
-      DESTINATION ${CMAKE_INSTALL_LIBDIR}
-  )
-  foreach(dir ${pybind11_INCLUDE_DIRS})
-    install(DIRECTORY ${dir} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
-  endforeach()
-  install(
-    EXPORT ${module_proj}Targets
-    FILE ${module_proj}Targets.cmake
-    NAMESPACE ${_name}::
-    DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${_name}
-  )
-endfunction()
@@ -1,65 +0,0 @@
-include_guard(DIRECTORY)
-include(GNUInstallDirs)
-
-function(init_python_plugin)
-  set(_options)
-  set(_one_value_args NAME PLUGIN_NAME)
-  set(_multi_value_args SOURCES)
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-  set_first_defined(_name _ARGS_NAME PROJECT_NAME)
-  set(_plugin_name ${_ARGS_PLUGIN_NAME})
-  if (NOT DEFINED _ARGS_PLUGIN_NAME)
-    set(_plugin_name ${_name}_plugins)
-  endif()
-  set(${_plugin_name}_SOURCES ${_ARGS_SOURCES})
-  if (NOT DEFINED _ARGS_SOURCES)
-    file(
-      GLOB_RECURSE ${_plugin_name}_SOURCES
-      RELATIVE ${CMAKE_CURRENT_SOURCE_DIR}
-      ${_plugin_name}/*.py)
-  endif()
-  set(src_outs)
-  foreach(_src ${${_plugin_name}_SOURCES})
-    set(_src_in ${CMAKE_CURRENT_SOURCE_DIR}/${_src})
-    set(_src_out ${CMAKE_CURRENT_BINARY_DIR}/${_src})
-    add_custom_command(
-      OUTPUT ${_src_out}
-      COMMAND ${CMAKE_COMMAND} -E copy ${_src_in} ${_src_out}
-      DEPENDS ${_src_in}
-      COMMENT "Copying ${_plugin_name} plugin ${_src} to ${_src_out}"
-    )
-    list(APPEND src_outs ${_src_out})
-  endforeach()
-  
-  add_custom_target(copy_${_plugin_name} ALL DEPENDS ${src_outs})
-  
-  add_library(${_plugin_name} INTERFACE)
-  add_library(${_name}::${_plugin_name} ALIAS ${_plugin_name})
-  
-  set_target_properties(
-    ${_plugin_name}
-    PROPERTIES
-      INTERFACE_PYTHON_SCRIPTS_DIR
-        $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/${_plugin_name}>$<INSTALL_INTERFACE:${CMAKE_INSTALL_BINDIR}/${_plugin_name}>
-  )
-  
-  set_target_properties(
-    ${_plugin_name}
-    PROPERTIES
-    INTERFACE_PYTHON_SCRIPTS $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/${${_plugin_name}_SOURCES}>$<INSTALL_INTERFACE:${CMAKE_INSTALL_BINDIR}/${${_plugin_name}_SOURCES}>
-  )
-  
-  install(
-    TARGETS ${_plugin_name}
-    EXPORT ${_plugin_name}Targets
-    DESTINATION ${CMAKE_INSTALL_BINDIR}
-  )
-  
-  install(
-    EXPORT ${_plugin_name}Targets
-    FILE ${_plugin_name}Targets.cmake
-    NAMESPACE ${_name}::
-    DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${_name}
-  )
-  install(DIRECTORY ${_plugin_name} DESTINATION ${CMAKE_INSTALL_BINDIR})
-endfunction()
@@ -1,39 +0,0 @@
-include_guard(DIRECTORY)
-include(GNUInstallDirs)
-include(${CMAKE_SOURCE_DIR}/cmake/PackBasic.cmake)
-include(${CMAKE_SOURCE_DIR}/cmake/SetFirstDefined.cmake)
-
-function(install_basic)
-  set(_options)
-  set(_one_value_args NAME INCLUDE_DIR)
-  set(_multi_value_args)
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-  set_first_defined(_name _ARGS_NAME PROJECT_NAME)
-  set_first_defined(_include_dir _ARGS_INCLUDE_DIR _name)
-
-  file(
-    GLOB_RECURSE ${_name}_HEADERS
-    RELATIVE ${CMAKE_CURRENT_SOURCE_DIR}
-    ${_include_dir}/*.h)
-
-  target_sources(${_name}
-    PUBLIC
-      FILE_SET HEADERS FILES ${${_name}_HEADERS})
-
-  install(
-    TARGETS ${_name}
-    EXPORT ${_name}Targets
-    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
-    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
-    ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
-    FILE_SET HEADERS DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
-  )
-
-  install(
-    EXPORT ${_name}Targets
-    FILE ${_name}Targets.cmake
-    NAMESPACE ${_name}::
-    DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${_name})
-
-  pack_basic()
-endfunction()
@@ -1,44 +0,0 @@
-include_guard(DIRECTORY)
-include(CMakePackageConfigHelpers)
-include(${CMAKE_SOURCE_DIR}/cmake/SetFirstDefined.cmake)
-
-function(pack_basic)
-  set(_options)
-  set(_one_value_args NAME)
-  set(_multi_value_args)
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-  set_first_defined(_name _ARGS_NAME PROJECT_NAME)
-
-  find_package(Git QUIET)
-
-  if(GIT_FOUND)
-    execute_process(
-      COMMAND ${GIT_EXECUTABLE} describe --tags --always --dirty
-      WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
-      OUTPUT_VARIABLE PROJECT_VERSION
-      OUTPUT_STRIP_TRAILING_WHITESPACE
-    )
-  endif()
-
-  if(NOT GIT_FOUND OR PROJECT_VERSION STREQUAL "")
-    set(PROJECT_VERSION "0.0.0")
-  endif()
-
-  write_basic_package_version_file(
-    "${CMAKE_CURRENT_BINARY_DIR}/${_name}ConfigVersion.cmake"
-    VERSION ${PROJECT_VERSION}
-    COMPATIBILITY AnyNewerVersion
-  )
-
-  configure_package_config_file(
-    "${CMAKE_CURRENT_SOURCE_DIR}/Config.cmake.in"
-    "${CMAKE_CURRENT_BINARY_DIR}/${_name}Config.cmake"
-    INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${_name}
-  )
-
-  install(
-    FILES
-      "${CMAKE_CURRENT_BINARY_DIR}/${_name}Config.cmake"
-      "${CMAKE_CURRENT_BINARY_DIR}/${_name}ConfigVersion.cmake"
-    DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${_name})
-endfunction()
@@ -0,0 +1,145 @@
+set(Protobuf_PROTOC_EXECUTABLE "${SPARK_BIN}/protoc")
+set(PROTOBUF_INCLUDE_DIRS "${SPARK_INCLUDE}")
+set(PROTOBUF_STATIC_LIB "libprotobuf")
+
+function(Protobuf_Generate_Cpp SRCS HDRS)
+  set(${SRCS})
+  set(${HDRS})
+
+  foreach(FIL ${ARGN})
+    get_filename_component(ABS_FIL ${FIL} ABSOLUTE)
+    get_filename_component(FIL_WE ${FIL} NAME_WE)
+    get_filename_component(FIL_DIR ${FIL} DIRECTORY)
+    if(FIL_DIR)
+      set(FIL_WE "${FIL_DIR}/${FIL_WE}")
+    endif()
+
+    list(APPEND ${SRCS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.cc")
+    list(APPEND ${HDRS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.h")
+
+    add_custom_command(
+      OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.cc"
+             "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.h"
+      COMMAND
+        ${Protobuf_PROTOC_EXECUTABLE} ARGS --cpp_out=${CMAKE_BINARY_DIR}/src -I
+        ${PROTOBUF_INCLUDE_DIRS} -I ${CMAKE_SOURCE_DIR}/src ${ABS_FIL}
+      DEPENDS ${ABS_FIL}
+      COMMENT "Running C++ protocol buffer compiler on ${FIL}"
+      VERBATIM)
+  endforeach()
+
+  set_source_files_properties(${${SRCS}} ${${HDRS}} PROPERTIES GENERATED TRUE)
+
+  # remove some warnings from protobuf generated files
+  if(WIN32)
+    set_source_files_properties(${${SRCS}} PROPERTIES COMPILE_FLAGS
+                                                      "/wd4309 /wd4838")
+  else()
+    set_source_files_properties(
+      ${${SRCS}}
+      PROPERTIES
+        COMPILE_FLAGS
+        "-Wno-unused-parameter -Wno-effc++ -Wno-pedantic -Wno-sign-compare -Wno-uninitialized"
+    )
+  endif()
+
+  set(${SRCS}
+      ${${SRCS}}
+      PARENT_SCOPE)
+  set(${HDRS}
+      ${${HDRS}}
+      PARENT_SCOPE)
+endfunction()
+
+function(Service_Compiler_Generate_Cpp SRCS HDRS)
+  set(${SRCS})
+  set(${HDRS})
+
+  foreach(FIL ${ARGN})
+    get_filename_component(ABS_FIL ${FIL} ABSOLUTE)
+    get_filename_component(FIL_WE ${FIL} NAME_WE)
+    get_filename_component(FIL_DIR ${FIL} DIRECTORY)
+    if(FIL_DIR)
+      set(FIL_WE "${FIL_DIR}/${FIL_WE}")
+    endif()
+
+    list(APPEND ${SRCS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.cc")
+    list(APPEND ${HDRS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.h")
+
+    list(APPEND ${SRCS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.client.pb.cc")
+    list(APPEND ${HDRS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.client.pb.h")
+
+    list(APPEND ${SRCS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.server.pb.cc")
+    list(APPEND ${HDRS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.server.pb.h")
+
+    set(TEMPLATES
+        ${CMAKE_CURRENT_SOURCE_DIR}/api/service_compiler/templates/cpp/client.pb.cc
+        ${CMAKE_CURRENT_SOURCE_DIR}/api/service_compiler/templates/cpp/client.pb.h
+        ${CMAKE_CURRENT_SOURCE_DIR}/api/service_compiler/templates/cpp/server.pb.cc
+        ${CMAKE_CURRENT_SOURCE_DIR}/api/service_compiler/templates/cpp/server.pb.h
+    )
+
+    if(WIN32)
+      add_custom_command(
+        OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.cc"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.h"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.client.pb.cc"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.client.pb.h"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.server.pb.cc"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.server.pb.h"
+        COMMAND SET PYTHONPATH=${SPARK_PYTHON}
+        COMMAND ${CMAKE_SOURCE_DIR}/.venv/Scripts/activate.bat
+        COMMAND
+          ${Protobuf_PROTOC_EXECUTABLE} ARGS --cpp_out=${CMAKE_BINARY_DIR}/src
+          --plugin=protoc-gen-service=${CMAKE_SOURCE_DIR}/src/lib/api/service_compiler/plugin.cmd
+          --service_out=lang=cpp:${CMAKE_BINARY_DIR}/src -I
+          ${PROTOBUF_INCLUDE_DIRS} -I ${CMAKE_SOURCE_DIR}/src ${ABS_FIL}
+        DEPENDS ${ABS_FIL} ${TEMPLATES}
+                ${CMAKE_CURRENT_SOURCE_DIR}/api/service_compiler/plugin.py
+        COMMENT "Running C++ service compiler on ${FIL}"
+        VERBATIM)
+    else()
+      add_custom_command(
+        OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.cc"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.h"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.client.pb.cc"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.client.pb.h"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.server.pb.cc"
+               "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.server.pb.h"
+        COMMAND ${CMAKE_SOURCE_DIR}/tools/venv_exec.sh
+        ARGS
+          ${Protobuf_PROTOC_EXECUTABLE}
+          --cpp_out=${CMAKE_BINARY_DIR}/src
+          --plugin=protoc-gen-service=${CMAKE_SOURCE_DIR}/src/lib/api/service_compiler/plugin.py
+          --service_out=lang=cpp,make_file_name=${ABS_FIL}:${CMAKE_BINARY_DIR}/src
+          -I ${PROTOBUF_INCLUDE_DIRS} -I ${CMAKE_SOURCE_DIR}/src ${ABS_FIL}
+        DEPENDS ${ABS_FIL} ${TEMPLATES}
+                ${CMAKE_CURRENT_SOURCE_DIR}/api/service_compiler/plugin.py
+        COMMENT "Running C++ service compiler on ${FIL}"
+        VERBATIM)
+    endif()
+
+  endforeach()
+
+  # remove some warnings from protobuf generated files
+  if(WIN32)
+    set_source_files_properties(${${SRCS}} PROPERTIES COMPILE_FLAGS
+                                                      "/wd4309 /wd4838")
+  else()
+    set_source_files_properties(
+      ${${SRCS}}
+      PROPERTIES
+        COMPILE_FLAGS
+        "-Wno-unused-parameter -Wno-effc++ -Wno-pedantic -Wno-sign-compare -Wno-uninitialized"
+    )
+  endif()
+
+  set(${SRCS}
+      ${${SRCS}}
+      PARENT_SCOPE)
+  set(${HDRS}
+      ${${HDRS}}
+      PARENT_SCOPE)
+
+endfunction()
+
@@ -1,83 +0,0 @@
-include_guard(GLOBAL)
-
-function(protobuf_generate_cpp)
-  set(_options)
-  set(_one_value_args
-    CXX_SOURCES
-    CXX_HEADERS
-    CXX_OUT_DIR
-    PROTOC
-  )
-  set(_multi_value_args
-    PROTO_INCLUDE_DIRS
-    PROTO_SOURCES
-  )
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-
-  if (NOT DEFINED _ARGS_PROTOC)
-    if (WIN32)
-      set(_ARGS_PROTOC "${EXTERNALS_BIN}/protoc.exe")
-    else()
-      set(_ARGS_PROTOC "${EXTERNALS_BIN}/protoc")
-    endif()
-  endif()
-  set(${_ARGS_CXX_SOURCES})
-  set(${_ARGS_CXX_HEADERS})
-
-  set(_proto_include_cli_args)
-  foreach(_dir ${_ARGS_PROTO_INCLUDE_DIRS})
-    list(APPEND _proto_include_cli_args -I ${_dir})
-  endforeach()
-
-  foreach(_fil ${_ARGS_PROTO_SOURCES})
-    get_filename_component(_abs_fil ${_fil} ABSOLUTE)
-    get_filename_component(_fil_we ${_fil} NAME_WE)
-    get_filename_component(_fil_dir ${_fil} DIRECTORY)
-    if(_fil_dir)
-      set(_fil_we "${_fil_dir}/${_fil_we}")
-    endif()
-    list(APPEND ${_ARGS_CXX_SOURCES} "${_ARGS_CXX_OUT_DIR}/${_fil_we}.pb.cc")
-    list(APPEND ${_ARGS_CXX_HEADERS} "${_ARGS_CXX_OUT_DIR}/${_fil_we}.pb.h")
-    message(STATUS "add_custom_command for ${_fil} -> ${_ARGS_CXX_OUT_DIR}/${_fil_we}.pb.h")
-    # TODO: Pass proto sources by relative path (so this fn can be called from
-    # arbitrary subdirs).
-    add_custom_command(
-      OUTPUT
-        "${_ARGS_CXX_OUT_DIR}/${_fil_we}.pb.cc"
-        "${_ARGS_CXX_OUT_DIR}/${_fil_we}.pb.h"
-      COMMAND
-        ${_ARGS_PROTOC}
-      ARGS
-        --cpp_out=${_ARGS_CXX_OUT_DIR} ${_proto_include_cli_args} ${_abs_fil}
-      DEPENDS ${_abs_fil}
-      COMMENT "Running C++ protocol buffer compiler on ${_fil}"
-      VERBATIM
-    )
-  endforeach()
-
-  set_source_files_properties(
-    ${${_ARGS_CXX_SOURCES}}
-    ${${_ARGS_CXX_HEADERS}}
-    PROPERTIES
-      GENERATED TRUE
-  )
-
-  # remove some warnings from protobuf generated files
-  if(WIN32)
-    set_source_files_properties(
-      ${${_ARGS_CXX_SOURCES}}
-      PROPERTIES
-        COMPILE_FLAGS "/wd4309 /wd4838"
-    )
-  else()
-    set_source_files_properties(
-      ${${_ARGS_CXX_SOURCES}}
-      PROPERTIES
-        COMPILE_FLAGS "-Wno-unused-parameter -Wno-effc++ -Wno-pedantic -Wno-sign-compare -Wno-uninitialized"
-    )
-  endif()
-
-  set(${_ARGS_CXX_SOURCES} ${${_ARGS_CXX_SOURCES}} PARENT_SCOPE)
-  set(${_ARGS_CXX_HEADERS} ${${_ARGS_CXX_HEADERS}} PARENT_SCOPE)
-endfunction()
-
@@ -1,61 +0,0 @@
-include_guard(GLOBAL)
-
-function(protobuf_generate_cpp_config)
-  set(_options)
-  set(_one_value_args
-    PROTO_SOURCES_HEADER
-    PROTO_DEFAULTS_HEADER
-  )
-  set(_multi_value_args
-    PROTO_SOURCES
-    PROTO_DEFAULTS
-  )
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-
-  # Configure the 'config_proto_files' header. It provides an array of strings populated with the
-  # files in PROTO_SOURCES. At runtime, we use this array to generate a special 'config' proto
-  # message with fields for each message defined in said files. A global instance of this 'config'
-  # proto is then constructed, and populated with [compile-time] defaults, and [runtime] overrides
-  # (i.e., in spark.conf). Calls to `bts::config::get<T>()` retrieve the value from the field
-  # associated with type `T` in this global instance.
-  message(STATUS "PROTO_SOURCES: ${_ARGS_PROTO_SOURCES}")
-  message(STATUS "PROTO_SOURCES_HEADER: ${_ARGS_PROTO_SOURCES_HEADER}")
-  message(STATUS "PROTO_DEFAULTS_HEADER: ${_ARGS_PROTO_DEFAULTS_HEADER}")
-  if (_ARGS_PROTO_SOURCES_HEADER)
-    set(PROTO_SOURCES)
-    set(PROTO_SOURCES_CXX_ARRAY_ITEMS "")
-    foreach(_proto_path ${_ARGS_PROTO_SOURCES})
-      list(APPEND PROTO_SOURCES ${_proto_path})
-      string(APPEND PROTO_SOURCES_CXX_ARRAY_ITEMS "\"${_proto_path}\",\n")
-    endforeach()
-    list(LENGTH PROTO_SOURCES PROTO_SOURCES_LENGTH)
-    message(STATUS "CONFIGURING PROTO_SOURCES_HEADER): ${_ARGS_PROTO_SOURCES_HEADER}")
-    configure_file(${CMAKE_SOURCE_DIR}/cmake/config_proto_files.h.in ${_ARGS_PROTO_SOURCES_HEADER})
-  endif()
-
-  # Generate static defaults. Ideally, this would be a single string, but we use an array because
-  # the compiler complains if the string is longer than 65k.
-  set(_cfg_defaults_str "inline const char * config_static_defaults[] = { ")
-
-  foreach(_cfg_file_path ${_ARGS_PROTO_DEFAULTS})
-    file(READ ${_cfg_file_path} _cfg_file_content)
-    string(REPLACE "\"" "\\\"" _cfg_file_content_escaped ${_cfg_file_content})
-    string(REPLACE "\n" ";" _cfg_lines ${_cfg_file_content_escaped})
-
-    foreach(_line ${_cfg_lines})
-      string(APPEND _cfg_defaults_str "\n  \"${_line}\",")
-    endforeach(_line)
-  endforeach(_cfg_file_path)
-
-  string(APPEND _cfg_defaults_str "};")
-  set(_old_cfg_defaults_str "")
-
-  if(EXISTS ${_ARGS_PROTO_DEFAULTS_HEADER})
-    file(READ ${_ARGS_PROTO_DEFAULTS_HEADER} _old_cfg_defaults_str)
-  endif()
-
-  if(NOT _cfg_defaults_str STREQUAL _old_cfg_defaults_str)
-    file(WRITE "${_ARGS_PROTO_DEFAULTS_HEADER}" "${_cfg_defaults_str}")
-  endif()
-endfunction()
-
@@ -1,49 +0,0 @@
-include_guard(DIRECTORY)
-
-function(protobuf_generate_fs)
-  set(_options)
-  set(_one_value_args TARGET_NAME OUT_DIR PROTOC)
-  set(_multi_value_args PROTO_INCLUDE_DIRS PROTO_SOURCES)
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-
-  if (NOT DEFINED _ARGS_TARGET_NAME)
-    set(_ARGS_TARGET_NAME "${PROJECT_NAME}_generate_fs_protos")
-  endif()
-  if (NOT DEFINED _ARGS_PROTOC)
-    set(_ARGS_PROTOC "${EXTERNALS_BIN}/protoc")
-  endif()
-
-  set(_proto_include_cli_args)
-  foreach(_dir ${_ARGS_PROTO_INCLUDE_DIRS})
-    list(APPEND _proto_include_cli_args -I ${_dir})
-  endforeach()
-
-  set(_outputs)
-  foreach(_proto_source ${_ARGS_PROTO_SOURCES})
-    # get_filename_component(_abs_proto_source ${_proto_source} ABSOLUTE)
-    get_filename_component(_proto_source_we ${_proto_source} NAME_WE)
-    # get_filename_component(_proto_source_dir ${_proto_source} DIRECTORY)
-    list(APPEND _outputs ${_ARGS_OUT_DIR}/${_proto_source_we}.fable.fs)
-  endforeach()
-
-  set(_venv_exec ${CMAKE_SOURCE_DIR}/tools/venv_exec.sh)
-  set(_plugin_py ${CMAKE_SOURCE_DIR}/src/lib_spark/spark/api/service_compiler/plugin.py)
-  set(_template_fs ${CMAKE_SOURCE_DIR}/src/lib_spark/spark/api/service_compiler/templates/fs/fable.fs)
-  add_custom_command(
-    OUTPUT ${_outputs}
-    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-    COMMAND ${_venv_exec}
-      ${_ARGS_PROTOC}
-      --plugin=protoc-gen-service=${_plugin_py}
-      --service_out=lang=fs,strip_out_path=1:${_ARGS_OUT_DIR}
-      ${_proto_include_cli_args}
-      ${_ARGS_PROTO_SOURCES}
-    DEPENDS
-      ${_venv_exec}
-      ${_plugin_py}
-      ${_template_fs}
-      ${CMAKE_CURRENT_SOURCE_DIR}/package-lock.json
-      ${_ARGS_PROTO_SOURCES}
-  )
-  add_custom_target(${_ARGS_TARGET_NAME} ALL DEPENDS "${_outputs}")
-endfunction()
@@ -1,33 +0,0 @@
-include_guard(DIRECTORY)
-
-function(protobuf_generate_js)
-  set(_options)
-  set(_one_value_args TARGET_NAME OUTPUT)
-  set(_multi_value_args PROTO_INCLUDE_DIRS PROTO_SOURCES)
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-
-  if (NOT DEFINED _ARGS_TARGET_NAME)
-    set(_ARGS_TARGET_NAME "${PROJECT_NAME}_generate_js_protos")
-  endif()
-
-  set(_proto_include_cli_args)
-  foreach(_dir ${_ARGS_PROTO_INCLUDE_DIRS})
-    list(APPEND _proto_include_cli_args -p ${_dir})
-  endforeach()
-
-  add_custom_command(
-    OUTPUT ${_ARGS_OUTPUT}
-    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-    COMMAND npx
-      --no-install pbjs
-      -t json-module
-      -w commonjs
-      -o ${_ARGS_OUTPUT}
-      ${_proto_include_cli_args}
-      ${_ARGS_PROTO_SOURCES}
-    DEPENDS
-      ${CMAKE_CURRENT_SOURCE_DIR}/package-lock.json
-      ${_ARGS_PROTO_SOURCES}
-  )
-  add_custom_target(${_ARGS_TARGET_NAME} ALL DEPENDS ${_ARGS_OUTPUT})
-endfunction()
@@ -1,10 +0,0 @@
-include_guard(GLOBAL)
-
-macro(set_first_defined RESULT)
-  foreach(_arg ${ARGN})
-    if (DEFINED ${_arg})
-      set(${RESULT} ${${_arg}})
-      break()
-    endif()
-  endforeach()
-endmacro()
@@ -1,49 +0,0 @@
-include_guard(DIRECTORY)
-include(${CMAKE_SOURCE_DIR}/cmake/TernaryOperator.cmake)
-
-function(sym_link_dir)
-  set(_options)
-  set(_one_value_args TARGET_NAME SOURCE DEST COMMENT)
-  set(_multi_value_args)
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-  add_custom_command(
-    OUTPUT ${_ARGS_DEST}
-    COMMAND ln ARGS -sf ${_ARGS_SOURCE} ${_ARGS_DEST}
-  )
-  set_ternary(_comment _ARGS_COMMENT "${_ARGS_COMMENT}" "linking dir ${_ARGS_SOURCE} -> ${_ARGS_DEST}")
-  add_custom_target(
-    ${_ARGS_TARGET_NAME} ALL
-    DEPENDS ${_ARGS_DEST}
-    COMMENT "${_comment}"
-  )
-endfunction()
-
-function(sym_link_file)
-  set(_options)
-  set(_one_value_args SOURCE DEST INSTALL_DEST)
-  set(_multi_value_args)
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}" "${_multi_value_args}" ${ARGN})
-  file(
-    CREATE_LINK
-      ${_ARGS_SOURCE}
-      ${_ARGS_DEST}
-    SYMBOLIC
-  )
-  if (DEFINED _ARGS_INSTALL_DEST)
-    install(
-      FILES
-      ${_ARGS_SOURCE}
-      DESTINATION ${_ARGS_INSTALL_DEST}
-    )
-  endif()
-endfunction()
-
-function(sym_link_local_lib LIB_NAME)
-  set(_lib_file_name "${CMAKE_SHARED_LIBRARY_PREFIX}${LIB_NAME}.so")
-  file(
-    CREATE_LINK
-      "${CMAKE_BINARY_DIR}/src/lib_${LIB_NAME}/${_lib_file_name}"
-      "${CMAKE_CURRENT_BINARY_DIR}/${_lib_file_name}"
-    SYMBOLIC
-  )
-endfunction()
@@ -1,39 +0,0 @@
-include_guard(DIRECTORY)
-include(${CMAKE_SOURCE_DIR}/cmake/SymLink.cmake)
-
-function(sym_link_python_module)
-  set(_options)
-  set(_one_value_args LIB_NAME MODULE_NAME PLUGIN_NAME)
-  set(_multi_value_args)
-  cmake_parse_arguments(_ARGS "${_options}" "${_one_value_args}"
-                        "${_multi_value_args}" ${ARGN})
-  if(NOT DEFINED _ARGS_LIB_NAME)
-    message(
-      FATAL_ERROR "LIB_NAME must be specified for sym_link_python_module()")
-  endif()
-  set(_lib_name ${_ARGS_LIB_NAME})
-  set(_module_name ${_ARGS_MODULE_NAME})
-  if(NOT DEFINED _ARGS_MODULE_NAME)
-    set(_module_name ${_lib_name}_module)
-  endif()
-  set(_plugin_name ${_ARGS_PLUGIN_NAME})
-  set(_deps ${_lib_name} ${_module_name})
-  if(DEFINED _ARGS_PLUGIN_NAME)
-    list(APPEND _deps ${_plugin_name} copy_${_plugin_name})
-  endif()
-  add_dependencies(${PROJECT_NAME} ${_deps})
-  sym_link_local_lib(${_lib_name})
-  set(_module_suffix cpython-310-x86_64-linux-gnu.so)
-  sym_link_file(
-    SOURCE
-    ${CMAKE_BINARY_DIR}/src/lib_${_lib_name}/${_module_name}.${_module_suffix}
-    DEST
-    ${CMAKE_CURRENT_BINARY_DIR}/${_module_name}.${_module_suffix}
-    INSTALL_DEST
-    ${CMAKE_INSTALL_BINDIR}/)
-  if(DEFINED _ARGS_PLUGIN_NAME)
-    get_target_property(plugins ${_plugin_name} INTERFACE_PYTHON_SCRIPTS_DIR)
-    sym_link_dir(TARGET_NAME ${PROJECT_NAME}_link_${_plugin_name} SOURCE
-                 ${plugins} DEST ${CMAKE_CURRENT_BINARY_DIR}/${_plugin_name})
-  endif()
-endfunction()
@@ -1,9 +0,0 @@
-include_guard(GLOBAL)
-
-macro(set_ternary RESULT CONDITION TRUE_VALUE FALSE_VALUE)
-  if(${CONDITION})
-    set(${RESULT} ${TRUE_VALUE})
-  else()
-    set(${RESULT} ${FALSE_VALUE})
-  endif()
-endmacro()
@@ -1,11 +0,0 @@
-#pragma once
-
-#include <array>
-
-namespace bts::@PROJECT_NAME@::protobufs {
-
-inline std::array<const char *, @PROTO_SOURCES_LENGTH@> config_proto_files = {
-@PROTO_SOURCES_CXX_ARRAY_ITEMS@
-};
-
-} // namespace bts::@PROJECT_NAME@::protobufs
@@ -1,11 +0,0 @@
-#ifndef BTS_SPARK_VERSION_H
-#define BTS_SPARK_VERSION_H
-
-#define BTS_SPARK_VERSION_MAJOR @PROJECT_VERSION_MAJOR@
-#define BTS_SPARK_VERSION_MINOR @PROJECT_VERSION_MINOR@
-#define BTS_SPARK_VERSION_PATCH @PROJECT_VERSION_PATCH@
-#define BTS_SPARK_VERSION_BUILD_METADATA @PROJECT_VERSION_BUILD_METADATA@
-#define BTS_SPARK_VERSION "@PROJECT_VERSION@"
-#define BTS_SPARK_VERSION_FULL "@PROJECT_VERSION_FULL@"
-
-#endif
@@ -0,0 +1,24 @@
+cmake_minimum_required(VERSION 3.5)
+
+# Explicitly set policy to convert relative paths to absolute (although this is a default policy,
+# setting it explicitly prevents a compile-warning)
+cmake_policy(SET CMP0076 NEW)
+
+# add protos to the library to facilitate source_group
+target_sources(libspark PUBLIC ${Config_Protos} ${NonConfig_Protos} ${Service_Protos})
+
+function(assign_source_group)
+  foreach(_source IN ITEMS ${ARGN})
+    if(IS_ABSOLUTE "${_source}")
+      file(RELATIVE_PATH _source_rel "${CMAKE_CURRENT_SOURCE_DIR}" "${_source}")
+    else()
+      set(_source_rel "${_source}")
+    endif()
+    get_filename_component(_source_path "${_source_rel}" PATH)
+    string(REPLACE "/" "\\" _source_path_msvc "${_source_path}")
+    source_group("${_source_path_msvc}" FILES "${_source}")
+    set(SOURCE_FILES "${_source}")
+  endforeach()
+endfunction(assign_source_group)
+
+assign_source_group(${SparkLib_Sources} ${Config_Protos} ${NonConfig_Protos} ${Service_Protos})
@@ -1,221 +0,0 @@
-services:
-  sparkd:
-    volumes:
-      - ${SPARKD__DATA_DIR:-sparkd_data}:/home/bts/.local/share/bts/sparkd/data
-      - ${SPARKD__MD_RECORDING_DIR:-md_recording}:/md_recording
-    build:
-      dockerfile: src/app_sparkd/Dockerfile
-      args:
-        - IMAGE=${SPARKD__IMAGE}
-        - SOURCE_DIR=${SPARKD__SOURCE_DIR}
-        - CONFIG_DIR=${SPARKD__CONFIG_DIR}
-        - PYTHON_REQUIREMENTS=${SPARKD__PYTHON_REQUIREMENTS}
-        - SPARKD_ENTRYPOINT=${SPARKD__SPARKD_ENTRYPOINT}
-    shm_size: "${SPARKD__SHM_SIZE:-512mb}"
-    env_file:
-      - .env
-      - ${SPARKD__CONFIG_DIR}/.env
-    ports:
-      - "${SPARKD__CONFIG_PORT}:${SPARKD__CONFIG_PORT}"
-      - "${SPARKD__QUICKBUS_PORT}:${SPARKD__QUICKBUS_PORT}"
-      - "${SPARKD__SIM_FIX_PORT}:${SPARKD__SIM_FIX_PORT}"
-    entrypoint: ${SPARKD__MAIN_ENTRYPOINT}
-    deploy:
-      resources:
-        limits:
-          memory: "${SPARKD__MEMORY:-4gb}"
-
-  sparkd-shell:
-    volumes:
-      - ${SPARKD__DATA_DIR:-sparkd_data}:/home/bts/.local/share/bts/sparkd/data
-      - ${SPARKD__MD_RECORDING_DIR:-md_recording}:/md_recording
-    build:
-      dockerfile: docker/images/bluetradingsystems/linux_shell/Dockerfile
-      args:
-        - IMAGE=${SPARKD__IMAGE}
-        - SOURCE_DIR=${SPARKD__SOURCE_DIR}
-        - CONFIG_DIR=${SPARKD__CONFIG_DIR}
-        - PYTHON_REQUIREMENTS=${SPARKD__PYTHON_REQUIREMENTS}
-        - SPARKD_ENTRYPOINT=${SPARKD__SPARKD_ENTRYPOINT}
-    shm_size: "${SPARKD__SHM_SIZE:-512mb}"
-    command: "do sleep 1; done"
-    env_file:
-      - .env
-      - ${SPARKD__CONFIG_DIR}/.env
-    ports:
-      - "${SPARKD__CONFIG_PORT}:${SPARKD__CONFIG_PORT}"
-      - "${SPARKD__QUICKBUS_PORT}:${SPARKD__QUICKBUS_PORT}"
-      - "${SPARKD__SIM_FIX_PORT}:${SPARKD__SIM_FIX_PORT}"
-    deploy:
-      resources:
-        limits:
-          memory: "${SPARKD__MEMORY:-4gb}"
-
-  sparkd-symbols:
-    volumes:
-      - ${SPARKD__DATA_DIR:-sparkd_data}:/home/bts/.local/share/bts/sparkd/data
-      - ${SPARKD__MD_RECORDING_DIR:-md_recording}:/md_recording
-      - ${SPARKD__RUNTIME_CONF_DIR:-sparkd_conf}:/home/bts/.local/share/bts/sparkd/conf
-    build:
-      dockerfile: src/app_sparkd/Dockerfile
-      args:
-        - IMAGE=${SPARKD__IMAGE}
-        - SOURCE_DIR=${SPARKD__SOURCE_DIR}
-        - CONFIG_DIR=${SPARKD__CONFIG_DIR}
-        - PYTHON_REQUIREMENTS=${SPARKD__PYTHON_REQUIREMENTS}
-        - SPARKD_ENTRYPOINT=${SPARKD__SPARKD_ENTRYPOINT}
-    shm_size: "${SPARKD__SHM_SIZE:-512mb}"
-    env_file:
-      - .env
-      - ${SPARKD__CONFIG_DIR}/.env
-    ports:
-      - "${SPARKD__CONFIG_PORT}:${SPARKD__CONFIG_PORT}"
-      - "${SPARKD__QUICKBUS_PORT}:${SPARKD__QUICKBUS_PORT}"
-      - "${SPARKD__SIM_FIX_PORT}:${SPARKD__SIM_FIX_PORT}"
-    entrypoint: ${SPARKD__MAIN_ENTRYPOINT}
-    deploy:
-      restart_policy:
-        condition: any
-        delay: 3s
-      resources:
-        limits:
-          memory: "${SPARKD__MEMORY:-4gb}"
-  sparkd-multicast:
-    volumes:
-      - ${SPARKD__DATA_DIR:-sparkd_data}:/home/bts/.local/share/bts/sparkd/data
-      - ${SPARKD__MD_RECORDING_DIR:-md_recording}:/md_recording
-      - ${SPARKD__RUNTIME_CONF_DIR:-sparkd_conf}:/home/bts/.local/share/bts/sparkd/conf
-    build:
-      dockerfile: src/app_sparkd/Dockerfile
-      args:
-        - IMAGE=${SPARKD__IMAGE}
-        - SOURCE_DIR=${SPARKD__SOURCE_DIR}
-        - CONFIG_DIR=${SPARKD__CONFIG_DIR}
-        - PYTHON_REQUIREMENTS=${SPARKD__PYTHON_REQUIREMENTS}
-        - SPARKD_ENTRYPOINT=${SPARKD__SPARKD_ENTRYPOINT}
-    shm_size: "${SPARKD__SHM_SIZE:-2048mb}"
-    env_file:
-      - .env
-      - ${SPARKD__CONFIG_DIR}/.env
-    network_mode: "host"
-    entrypoint: ${SPARKD__MAIN_ENTRYPOINT}
-    deploy:
-      restart_policy:
-        condition: any
-        delay: 3s
-      resources:
-        limits:
-          memory: "${SPARKD__MEMORY:-4gb}"
-  sparkd-tail:
-    image: bluetradingsystems/linux_dotnet8
-    volumes:
-      - type: volume
-        read_only: true
-        source: sparkd_data
-        target: /home/bts/.local/share/bts/sparkd/data/logging.sparkd
-        volume:
-          subpath: logging.sparkd
-    command: ["tail", "-f", "/home/bts/.local/share/bts/sparkd/data/logging.sparkd/log"]
-
-  sparkd-ping-test:
-    depends_on:
-      - sparkd
-    profiles:
-      - ping-test
-    build:
-      context: .
-      dockerfile_inline: |
-        FROM bluetradingsystems/linux_dotnet8
-        USER "root"
-        RUN apt-get update && apt-get -y install iputils-ping
-    command: [ "ping", "sparkd" ]
-
-  pubsub:
-    volumes:
-      - ${PUBSUB__DATA_DIR:-pubsub_data}:/home/bts/.local/share/bts/pubsub/data
-    build:
-      dockerfile: src/DataStreamSuite/PubSubServer/Dockerfile
-      args:
-        - SOURCE_DIR=${PUBSUB__SOURCE_DIR}
-        - CONFIG_DIR=${PUBSUB__CONFIG_DIR}
-    ports:
-      - 22019:22019
-    command: >
-      sh -c "
-        echo bts | sudo -S chown -R bts:bts /home/bts/.local/share/bts/pubsub/data
-        if [ -e "/home/bts/.local/share/bts/pubsub/data/logging.PubSubServer/log" ]; then
-          mv "/home/bts/.local/share/bts/pubsub/data/logging.PubSubServer/log" "/home/bts/.local/share/bts/pubsub/data/logging.PubSubServer/log_$(date '+%Y%m%d-%H%M')"
-        fi
-        if [ -e "/home/bts/.local/share/bts/pubsub/conf/.env" ]; then
-          echo 'Sourcing /home/bts/.local/share/bts/pubsub/conf/.env'
-          set -a
-          . /home/bts/.local/share/bts/pubsub/conf/.env
-          set +a
-        fi
-        if [ -e "/home/bts/.local/share/bts/pubsub/conf/.env.local" ]; then
-          echo 'Sourcing /home/bts/.local/share/bts/pubsub/conf/.env.local'
-          set -a
-          . /home/bts/.local/share/bts/pubsub/conf/.env.local
-          set +a
-        fi
-        ./PubSubServer"
-    env_file:
-      - .env
-      - ${PUBSUB__CONFIG_DIR}/.env
-
-  md-publisher:
-    volumes:
-      - ${MD_PUBLISHER__DATA_DIR:-md_publisher_data}:/home/bts/.local/share/bts/md_publisher/data
-      - historic_md:/home/bts/.local/share/bts/md_publisher/data/databento
-    build:
-      dockerfile: src/DataStreamSuite/DataStreamPublisher/Dockerfile
-      args:
-        - SOURCE_DIR=${MD_PUBLISHER__SOURCE_DIR}
-        - CONFIG_DIR=${MD_PUBLISHER__CONFIG_DIR}
-    command: >
-      sh -c "
-        echo bts | sudo -S chown -R bts:bts /home/bts/.local/share/bts/md_publisher/data
-        if [ -e "/home/bts/.local/share/bts/md_publisher/data/logging.DataStreamPublisher/log" ]; then
-          mv "/home/bts/.local/share/bts/md_publisher/data/logging.DataStreamPublisher/log" "/home/bts/.local/share/bts/md_publisher/data/logging.DataStreamPublisher/log_$(date '+%Y%m%d-%H%M')"
-        fi
-        if [ -e "/home/bts/.local/share/bts/md_publisher/conf/.env" ]; then
-          echo 'Sourcing /home/bts/.local/share/bts/md_publisher/conf/.env'
-          set -a
-          . /home/bts/.local/share/bts/md_publisher/conf/.env
-          set +a
-        fi
-        if [ -e "/home/bts/.local/share/bts/md_publisher/conf/.env.local" ]; then
-          echo 'Sourcing /home/bts/.local/share/bts/md_publisher/conf/.env.local'
-          set -a
-          . /home/bts/.local/share/bts/md_publisher/conf/.env.local
-          set +a
-        fi
-      dockerize -wait tcp://pubsub:22019 -timeout 10s ./DataStreamPublisher"
-    env_file:
-      - .env
-      - ${MD_PUBLISHER__CONFIG_DIR}/.env
-
-  api-server:
-    depends_on:
-      - sparkd
-    ports:
-      - 8008:8008
-      - 9443:9443
-    build:
-      dockerfile: src/client/spark_api_server/Dockerfile
-    command: [ "dockerize", "-wait", "tcp://sparkd:8000", "-timeout", "10s", "./spark_api_server", "run" ]
-    environment:
-      - ASPNETCORE_ENVIRONMENT=Staging
-
-volumes:
-  sparkd_data:
-    name: "sparkd_${SPARKD__CONFIG_PORT:-8000}"
-  pubsub_data:
-    name: "pubsub_22019"
-  md_publisher_data:
-    name: "md_publisher_22019"
-  historic_md:
-    name: "historic_md"
-  md_recording:
-    name: "sparkd_md_recording_${SPARKD__CONFIG_PORT:-8000}"
-    external: true
@@ -124,8 +124,8 @@ service OrderService {
 ```
 ### C++ Example
 ```cpp
-#include "spark/api/public/ServiceContext.h"
-#include "spark/api/services/OrderService.client.pb.h"
+#include "lib/api/public/ServiceContext.h"
+#include "lib/api/services/OrderService.client.pb.h"
 using namespace bts::api;
 ServiceContext ctx;
 auto orders = ctx.locate<orderman::OrderService>();
@@ -29,9 +29,9 @@ namespace sample {
 ```

 ```cpp
-#include "spark/api/public/ServiceContext.h"
-#include "spark/domain_model/Security.h"
-#include "spark/api/services/MarketDataService.client.pb.h"
+#include "lib/api/public/ServiceContext.h"
+#include "spark/lib/domain_model/Security.h"
+#include "lib/api/services/MarketDataService.client.pb.h"
 #include <thread>

 using namespace bts::api;
@@ -1,38 +0,0 @@
-FROM ubuntu:22.04
-
-ARG DEBIAN_FRONTEND=noninteractive
-
-RUN apt-get update && apt-get install -y pkg-config
-RUN apt-get update && apt-get install -y locales
-RUN apt-get update && apt-get install -y ca-certificates
-RUN apt-get update && apt-get install -y libssh2-1-dev
-RUN apt-get update && apt-get install -y software-properties-common
-RUN apt-get update && apt-get install -y sudo
-
-# GCC
-ARG gcc_major=13
-RUN add-apt-repository ppa:ubuntu-toolchain-r/test \
-  && apt-get update \
-  && apt-get install -y g++-$gcc_major
-
-RUN apt-get update \
-  && apt-get install -y dotnet7
-
-RUN locale-gen en_US.UTF-8
-
-ARG docker_user="bts"
-ARG docker_uid="1000"
-ARG docker_pass="bts"
-
-RUN \
-  groupadd -g "$docker_uid" "$docker_user" \
-  && useradd \
-  -m \
-  -u "$docker_uid" \
-  -g "$docker_uid" \
-  -G sudo \
-  --password "$(openssl passwd -1 "$docker_pass")" \
-  "$docker_user"
-
-USER bts
-WORKDIR /home/bts
@@ -1,39 +0,0 @@
-FROM ubuntu:22.04
-
-ARG DEBIAN_FRONTEND=noninteractive
-
-RUN apt-get update && apt-get install -y pkg-config
-RUN apt-get update && apt-get install -y locales
-RUN apt-get update && apt-get install -y ca-certificates
-RUN apt-get update && apt-get install -y libssh2-1-dev
-RUN apt-get update && apt-get install -y software-properties-common
-RUN apt-get update && apt-get install -y sudo
-RUN apt-get update && apt-get install -y tzdata
-
-# GCC
-ARG gcc_major=13
-RUN add-apt-repository ppa:ubuntu-toolchain-r/test \
-  && apt-get update \
-  && apt-get install -y g++-$gcc_major
-
-RUN apt-get update \
-  && apt-get install -y dotnet8
-
-RUN locale-gen en_US.UTF-8
-
-ARG docker_user="bts"
-ARG docker_uid="1000"
-ARG docker_pass="bts"
-
-RUN \
-  groupadd -g "$docker_uid" "$docker_user" \
-  && useradd \
-  -m \
-  -u "$docker_uid" \
-  -g "$docker_uid" \
-  -G sudo \
-  --password "$(openssl passwd -1 "$docker_pass")" \
-  "$docker_user"
-
-USER bts
-WORKDIR /home/bts
@@ -1,150 +0,0 @@
-FROM ubuntu:22.04
-
-ARG DEBIAN_FRONTEND=noninteractive
-
-# Note installations that take a while (more than 10s)
-
-RUN apt-get update
-RUN apt-get install -y ca-certificates
-RUN apt-get install -y ccache
-RUN apt-get install -y curl
-RUN apt-get install -y fish
-RUN apt-get install -y gdb
-# git-all: ~250s
-RUN apt-get install -y git-all
-RUN apt-get install -y gnupg
-# liblttng-ust-dev: ~30s
-RUN apt-get install -y liblttng-ust-dev
-RUN apt-get install -y libssh2-1-dev
-RUN apt-get install -y locales
-RUN apt-get install -y ninja-build
-# openssh-server: ~40s
-RUN apt-get install -y openssh-server
-RUN apt-get install -y pkg-config
-RUN apt-get install -y software-properties-common
-RUN apt-get install -y sudo
-RUN apt-get install -y tzdata
-RUN apt-get install -y vim
-RUN apt-get install -y zip
-
-# Python: ~30s
-RUN apt-get install -y \
-   python3-pip \
-   python3-venv \
-   && python3 -m pip install --upgrade pip
-
-# GCC
-ARG gcc_major=13
-RUN \
-   add-apt-repository ppa:ubuntu-toolchain-r/test \
-   && apt-get update \
-   && apt-get install -y g++-$gcc_major
-
-# Clang
-ARG clang_major=17
-RUN \
-   curl -fsSL https://apt.llvm.org/llvm-snapshot.gpg.key 2> /dev/null \
-   | gpg --dearmor - \
-   | tee /usr/share/keyrings/llvm-snapshot.gpg > /dev/null \
-   && echo "deb [signed-by=/usr/share/keyrings/llvm-snapshot.gpg] http://apt.llvm.org/$(lsb_release -cs)/ llvm-toolchain-$(lsb_release -cs)-$clang_major main" \
-   | tee -a "/etc/apt/sources.list.d/llvm.list" \
-   && apt-get update \
-   && apt-get install -y \
-   clang-$clang_major \
-   clang-format-$clang_major \
-   clangd-$clang_major
-
-# CMake
-RUN set -eux \
-  && apt-get update \
-  && apt-get install -y --no-install-recommends ca-certificates curl gpg \
-  && curl -fsSL https://apt.kitware.com/keys/kitware-archive-latest.asc \
-    | gpg --dearmor -o /usr/share/keyrings/kitware-archive-keyring.gpg \
-  && echo "deb [signed-by=/usr/share/keyrings/kitware-archive-keyring.gpg] https://apt.kitware.com/ubuntu/ $(lsb_release -cs) main" \
-    > /etc/apt/sources.list.d/kitware.list \
-  && apt-get update \
-  && apt-get install -y --no-install-recommends cmake \
-  && rm -rf /var/lib/apt/lists/*
-
-# Dotnet
-RUN apt-get update && apt-get install -y dotnet8
-
-# Node
-ARG node_major=18
-RUN mkdir -p /etc/apt/keyrings \
-   && curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key \
-   | gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg \
-   && echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_$node_major.x nodistro main" \
-   | tee /etc/apt/sources.list.d/nodesource.list \
-   && apt-get update \
-   && apt-get install -y nodejs
-
-# Emumba (deps)
-RUN apt-get update && apt-get -y install rapidjson-dev
-# Emumba
-ARG EMUMBA_DERIBIT_CONNECTOR_DEB_URL="https://api.bitbucket.org/2.0/repositories/bluetradesys/spark/downloads/emumba-deribit-connector-3.3.1-Linux.LICENSE_DISABLED.deb"
-RUN --mount=type=secret,id=bitbucket_access_token \
-  set -eux \
-    && apt-get update \
-    && TOKEN="$(cat /run/secrets/bitbucket_access_token)" \
-    && curl -fL -H "Authorization: Bearer ${TOKEN}" $EMUMBA_DERIBIT_CONNECTOR_DEB_URL -o /tmp/emumba-deribit-connector.deb \
-    && apt-get install -y /tmp/emumba-deribit-connector.deb \
-    && rm -f /tmp/emumba-deribit-connector.deb
-
-# Pcap
-RUN apt-get update && apt-get install -y libpcap0.8-dev
-
-# Databento (deps)
-RUN apt-get update && apt-get -y install libzstd-dev
-
-# Rakurai
-ARG RAKURAI_DEB_URL="https://api.bitbucket.org/2.0/repositories/bluetradesys/spark/downloads/rakurai-dex-connector_0.0.5_amd64.deb"
-RUN --mount=type=secret,id=bitbucket_access_token \
-  set -eux \
-    && apt-get update \
-    && TOKEN="$(cat /run/secrets/bitbucket_access_token)" \
-    && curl -fL -H "Authorization: Bearer ${TOKEN}" $RAKURAI_DEB_URL -o /tmp/rakurai.deb \
-    # Need --force-overwrite because rakuirai and emumba-deribit-connector both include the same
-    # spdlog headers.
-    && apt-get install -y -o Dpkg::Options::="--force-overwrite" /tmp/rakurai.deb \
-    && rm -f /tmp/rakuirai.deb
-
-# Docker in Docker
-RUN apt-get update && apt-get install -y \
-    docker.io \
-    docker-compose \
-    docker-compose-v2
-
-# Set up default executables (update-alternatives)
-RUN \
-   update-alternatives --install /usr/bin/clang clang /usr/bin/clang-$clang_major 100; \
-   update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-$clang_major 100; \
-   update-alternatives --install /usr/bin/clang-format clang-format /usr/bin/clang-format-$clang_major 100; \
-   update-alternatives --install /usr/bin/clangd clangd /usr/bin/clangd-$clang_major 100; \
-   update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-$gcc_major 100; \
-   update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-$gcc_major 100
-
-# Add compiler symlinks for ccache 
-RUN \
-   ln -s /usr/bin/ccache /usr/local/bin/clang; \
-   ln -s /usr/bin/ccache /usr/local/bin/clang++; \
-   ln -s /usr/bin/ccache /usr/local/bin/clang-$clang_major; \
-   ln -s /usr/bin/ccache /usr/local/bin/clang++-$clang_major; \
-   ln -s /usr/bin/ccache /usr/local/bin/gcc; \
-   ln -s /usr/bin/ccache /usr/local/bin/g++
-
-RUN locale-gen en_US.UTF-8
-
-ARG docker_user="bts"
-ARG docker_uid="1000"
-ARG docker_pass="bts"
-
-RUN \
-   groupadd -g "$docker_uid" "$docker_user" \
-   && useradd \
-   -m \
-   -u "$docker_uid" \
-   -g "$docker_uid" \
-   -G sudo \
-   --password "$(openssl passwd -1 "$docker_pass")" \
-   "$docker_user"
@@ -1,11 +0,0 @@
-FROM ubuntu:24.04
-
-ARG DEBIAN_FRONTEND=noninteractive
-
-RUN apt-get update && apt-get install -y \
-  fish \
-  less \
-  vim
-
-USER bts
-WORKDIR /home/bts
@@ -1,65 +1,74 @@
-FROM ubuntu:latest
+FROM ubuntu:22.04

 ARG DEBIAN_FRONTEND=noninteractive
-ENV TZ=America/New_York

-# light deps (should be quick to download/install)
-RUN apt-get update && apt-get install -y \
-    ca-certificates \
-    curl \
-    gnupg \
-    liblttng-ust-dev \
-    libpcap0.8-dev \
-    locales \
-    ninja-build \
-    software-properties-common \
-    sqlite3 \
-    tzdata
+# Note installations that take a while (more than 10s)

-# clang
-RUN apt-get update && apt-get install -y \
-    clang-13 \
-    clang-format-13 \
-    clangd-13 \
-    clang-15 \
-    clang-format-15 \
-    clangd-15
+RUN apt-get update
+RUN apt-get install -y ca-certificates
+RUN apt-get install -y ccache
+RUN apt-get install -y curl
+RUN apt-get install -y fish
+RUN apt-get install -y gdb
+# git-all: ~250s
+RUN apt-get install -y git-all
+RUN apt-get install -y gnupg
+# liblttng-ust-dev: ~30s
+RUN apt-get install -y liblttng-ust-dev
+RUN apt-get install -y libssh2-1-dev
+RUN apt-get install -y locales
+RUN apt-get install -y ninja-build
+# openssh-server: ~40s
+RUN apt-get install -y openssh-server
+RUN apt-get install -y pkg-config
+RUN apt-get install -y software-properties-common
+RUN apt-get install -y sudo
+RUN apt-get install -y tzdata
+RUN apt-get install -y vim
+RUN apt-get install -y zip

-# g++
-RUN apt-get update && apt-get install -y \
-    g++-11 \
-    g++-12
-
-# python
-RUN apt-get update && apt-get install -y \
+# Python: ~30s
+RUN apt-get install -y \
    python3-pip \
    python3-venv \
    && python3 -m pip install --upgrade pip

-# dotnet
-RUN apt-get update && apt-get install -y \
-    dotnet7
+# GCC
+ARG gcc_major=13
+RUN add-apt-repository ppa:ubuntu-toolchain-r/test \
+    && apt-get update \
+    && apt-get install -y g++-$gcc_major

-# ssh
-RUN apt-get update && apt-get install -y \
-    libssh2-1-dev \
-    openssh-server
+# Clang
+ARG clang_major=17
+RUN curl -fsSL https://apt.llvm.org/llvm-snapshot.gpg.key 2> /dev/null \
+    | gpg --dearmor - \
+    | tee /usr/share/keyrings/llvm-snapshot.gpg > /dev/null \
+    && echo "deb [signed-by=/usr/share/keyrings/llvm-snapshot.gpg] http://apt.llvm.org/$(lsb_release -cs)/ llvm-toolchain-$(lsb_release -cs)-$clang_major main" \
+    | tee -a "/etc/apt/sources.list.d/llvm.list" \
+    && apt-get update \
+    && apt-get install -y \
+    clang-$clang_major \
+    clang-format-$clang_major \
+    clangd-$clang_major

-# cmake
-RUN \
-    curl -fsSL https://apt.kitware.com/keys/kitware-archive-latest.asc 2> /dev/null \
+# CMake
+RUN curl -fsSL https://apt.kitware.com/keys/kitware-archive-latest.asc 2> /dev/null \
    | gpg --dearmor - \
    | tee /usr/share/keyrings/kitware-archive-keyring.gpg > /dev/null \
    && echo "deb [signed-by=/usr/share/keyrings/kitware-archive-keyring.gpg] https://apt.kitware.com/ubuntu/ $(lsb_release -cs) main" \
    | tee /etc/apt/sources.list.d/kitware.list > /dev/null \
    && apt-get update \
-    && rm /usr/share/keyrings/kitware-archive-keyring.gpg \
-    && apt-get install -y kitware-archive-keyring \
-    && echo "deb [signed-by=/usr/share/keyrings/kitware-archive-keyring.gpg] https://apt.kitware.com/ubuntu/ $(lsb_release -cs)-rc main" \
-    | tee -a /etc/apt/sources.list.d/kitware.list >/dev/null \
    && apt-get install -y cmake

-# node
+# Dotnet
+RUN curl -fsSLO "https://packages.microsoft.com/config/ubuntu/$(lsb_release -rs)/packages-microsoft-prod.deb" \
+    && dpkg -i packages-microsoft-prod.deb \
+    && rm packages-microsoft-prod.deb \
+    && apt-get update \
+    && apt-get install -y dotnet-sdk-8.0
+
+# Node
 ARG node_major=18
 RUN mkdir -p /etc/apt/keyrings \
    && curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key \
@@ -69,60 +78,35 @@ RUN mkdir -p /etc/apt/keyrings \
    && apt-get update \
    && apt-get install -y nodejs

-# ccache is done here so that ccache sees clang++ installed, not clang-10
-RUN apt-get update && apt-get install -y \
-    ccache 
-
-# emumba (light deps)
+# Emumba deps
 RUN apt-get update && apt-get install -y \
    build-essential \
    doxygen \
-    python3-sphinx \
    graphviz \
    libgtest-dev \
    libssl-dev \
+    pkg-config \
+    python3-sphinx \
    rapidjson-dev \
-    zlib1g-dev \
-    pkg-config
+    zlib1g-dev

-# emumba (boost)
-RUN apt-get update && apt-get install -y \
-    libboost-filesystem-dev \
-    libboost-program-options-dev \
-    libboost-test-dev \
-    libboost-date-time-dev
-
-# dev utils
-RUN apt-get update && apt-get install -y \ 
-    fish \
-    git-all \
-    sudo \
-    vim \
-    wget
-
-# set up default executables (update-alternatives)
-RUN \
-    update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-13 100; \
-    update-alternatives --install /usr/bin/clang clang /usr/bin/clang-13 100; \
-    update-alternatives --install /usr/bin/clang-format clang-format /usr/bin/clang-format-13 100; \
-    update-alternatives --install /usr/bin/clangd clangd /usr/bin/clangd-13 100; \
-    update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-11 100; \
-    update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-11 100
+# Set up default executables (update-alternatives)
+RUN update-alternatives --install /usr/bin/clang clang /usr/bin/clang-$clang_major 100; \
+    update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-$clang_major 100; \
+    update-alternatives --install /usr/bin/clang-format clang-format /usr/bin/clang-format-$clang_major 100; \
+    update-alternatives --install /usr/bin/clangd clangd /usr/bin/clangd-$clang_major 100; \
+    update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-$gcc_major 100; \
+    update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-$gcc_major 100

 # Add compiler symlinks for ccache 
-RUN \
-    ln -s /usr/bin/ccache /usr/local/bin/clang; \
+RUN ln -s /usr/bin/ccache /usr/local/bin/clang; \
    ln -s /usr/bin/ccache /usr/local/bin/clang++; \
-    ln -s /usr/bin/ccache /usr/local/bin/clang-13; \
-    ln -s /usr/bin/ccache /usr/local/bin/clang++-13; \
-    ln -s /usr/bin/ccache /usr/local/bin/clang-15; \
-    ln -s /usr/bin/ccache /usr/local/bin/clang++-15; \
+    ln -s /usr/bin/ccache /usr/local/bin/clang-$clang_major; \
+    ln -s /usr/bin/ccache /usr/local/bin/clang++-$clang_major; \
    ln -s /usr/bin/ccache /usr/local/bin/gcc; \
    ln -s /usr/bin/ccache /usr/local/bin/g++; \
-    ln -s /usr/bin/ccache /usr/local/bin/gcc-11; \
-    ln -s /usr/bin/ccache /usr/local/bin/g++-11; \
-    ln -s /usr/bin/ccache /usr/local/bin/gcc-12; \
-    ln -s /usr/bin/ccache /usr/local/bin/g++-12
+    ln -s /usr/bin/ccache /usr/local/bin/gcc-$gcc_major; \
+    ln -s /usr/bin/ccache /usr/local/bin/g++-$gcc_major

 RUN locale-gen en_US.UTF-8

@@ -130,8 +114,7 @@ ARG docker_user="bts"
 ARG docker_uid="1000"
 ARG docker_pass="bts"

-RUN \
-    groupadd -g "$docker_uid" "$docker_user" \
+RUN groupadd -g "$docker_uid" "$docker_user" \
    && useradd \
    -m \
    -u "$docker_uid" \
@@ -1,6 +0,0 @@
-{
-  "sdk": {
-    "version": "6.0.200",
-    "rollForward": "latestMajor"
-  }
-}
@@ -0,0 +1,45 @@
+/* global use, db */
+// MongoDB Playground
+// To disable this template go to Settings | MongoDB | Use Default Template For Playground.
+// Make sure you are connected to enable completions and to be able to run a playground.
+// Use Ctrl+Space inside a snippet or a string literal to trigger completions.
+// The result of the last command run in a playground is shown on the results panel.
+// By default the first 20 documents will be returned with a cursor.
+// Use 'console.log()' to print to the debug output.
+// For more documentation on playgrounds please refer to
+// https://www.mongodb.com/docs/mongodb-vscode/playgrounds/
+
+// Select the database to use.
+use('mongodbVSCodePlaygroundDB');
+
+// Insert a few documents into the sales collection.
+db.getCollection('sales').insertMany([
+    { 'item': 'abc', 'price': 10, 'quantity': 2, 'date': new Date('2014-03-01T08:00:00Z') },
+    { 'item': 'jkl', 'price': 20, 'quantity': 1, 'date': new Date('2014-03-01T09:00:00Z') },
+    { 'item': 'xyz', 'price': 5, 'quantity': 10, 'date': new Date('2014-03-15T09:00:00Z') },
+    { 'item': 'xyz', 'price': 5, 'quantity': 20, 'date': new Date('2014-04-04T11:21:39.736Z') },
+    { 'item': 'abc', 'price': 10, 'quantity': 10, 'date': new Date('2014-04-04T21:23:13.331Z') },
+    { 'item': 'def', 'price': 7.5, 'quantity': 5, 'date': new Date('2015-06-04T05:08:13Z') },
+    { 'item': 'def', 'price': 7.5, 'quantity': 10, 'date': new Date('2015-09-10T08:43:00Z') },
+    { 'item': 'abc', 'price': 10, 'quantity': 5, 'date': new Date('2016-02-06T20:20:13Z') },
+]);
+
+// Run a find command to view items sold on April 4th, 2014.
+const salesOnApril4th = db.getCollection('sales').find({
+    date: { $gte: new Date('2014-04-04'), $lt: new Date('2014-04-05') }
+}).count();
+
+// Print a message to the output window.
+console.log(`${salesOnApril4th} sales occurred in 2014.`);
+
+// Here we run an aggregation and open a cursor to the results.
+// Use '.toArray()' to exhaust the cursor to return the whole result set.
+// You can use '.hasNext()/.next()' to iterate through the cursor page by page.
+db.getCollection('sales').aggregate([
+    // Find all of the sales that occurred in 2014.
+    { $match: { date: { $gte: new Date('2014-01-01'), $lt: new Date('2015-01-01') } } },
+    // Group the total sales for each product.
+    { $group: { _id: '$item', totalSaleAmount: { $sum: { $multiply: ['$price', '$quantity'] } } } }
+]);
+
+
@@ -1,42 +1,22 @@
 astroid==2.7.3
 autopep8==1.5.7
-blinker==1.9.0
-boto3==1.37.9
-botocore==1.37.9
 certifi==2023.5.7
 charset-normalizer==3.1.0
-click==8.1.8
 colorama==0.4.4
-Flask==3.1.0
 idna==3.4
 isort==5.9.3
-itsdangerous==2.2.0
-Jinja2==3.1.6
-jmespath==1.0.1
 lazy-object-proxy==1.6.0
-MarkupSafe==3.0.2
 mccabe==0.6.1
-numpy==2.2.6
 platformdirs==2.3.0
-protobuf==6.33.4
+protobuf==4.21.12
 pybars3==0.9.7
-pybind11==3.0.1
-pybind11-stubgen==2.5.5
-pybit==5.11.0
 pycodestyle==2.7.0
 pycparser==2.20
-pycryptodome==3.23.0
 pylint==2.10.2
 PyMeta3==0.5.1
-python-dateutil==2.9.0.post0
-python-dotenv==1.0.1
 requests==2.31.0
-s3transfer==0.11.4
-six==1.17.0
 termcolor==1.1.0
 toml==0.10.2
 urllib3==2.0.3
-websocket-client==1.8.0
-Werkzeug==3.1.3
 wrapt==1.12.1
 yapf==0.31.0
@@ -1,306 +1,103 @@
-
-Microsoft Visual Studio Solution File, Format Version 12.00
+Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
-VisualStudioVersion = 17.0.31903.59
-MinimumVisualStudioVersion = 10.0.40219.1
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{827E0CD3-B72D-47B6-A68D-7590B98EB39B}"
+VisualStudioVersion = 17.3.32922.545
+MinimumVisualStudioVersion = 15.0.26124.0
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "spark_api", "src\client\spark_api\spark_api.csproj", "{DC9A8975-8211-4FC9-A9BA-C8B9D26AD481}"
 EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "cs", "cs", "{D7C6B9C7-1058-B1EA-FEE6-34C56B05AEDB}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Spark", "src\client\spark\Spark.csproj", "{9A4D4D07-1AB6-4B2B-B111-A4F34D6C267E}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Spark.Core", "src\cs\Bts.Spark.Core\Bts.Spark.Core.csproj", "{684863A1-3396-4D31-A731-C0725CF07F4E}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Spark.Console", "src\client\Spark.Console\Spark.Console.csproj", "{387566C6-C6F6-412C-A30C-9855BBCB4816}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Spark.Api", "src\cs\Bts.Spark.Api\Bts.Spark.Api.csproj", "{45292808-4EF3-4D4A-B3F5-B75C42EE5870}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "spark_core", "src\client\spark_core\spark_core.csproj", "{6E449EB6-20AC-4FA6-B8D9-10F4BB7E1FEE}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Extensions.Hosting", "src\cs\Bts.Extensions.Hosting\Bts.Extensions.Hosting.csproj", "{AA57F8D9-7BD6-4161-881B-AD2CEF9A30F6}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "spark_sdk", "src\client\spark_sdk\spark_sdk.csproj", "{6963C314-83C4-4667-B0D0-C2F7AE208C29}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.IO.Compression", "src\cs\Bts.IO.Compression\Bts.IO.Compression.csproj", "{28A26DF7-5F7A-43A2-A548-B55FEBCC3958}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "spark_test", "src\client\spark_test\spark_test.csproj", "{ECD78CC5-138F-4809-A764-2358C2AC2E82}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.Net", "src\cs\Bts.Net\Bts.Net.csproj", "{7543386A-5EBA-4AF0-9E0F-35657B58557D}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "spark_websocket", "src\client\spark_websocket\spark_websocket.csproj", "{3201359D-C071-4089-9EDE-B04D759F1508}"
 EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "DataStreamSuite", "DataStreamSuite", "{60E0D592-FFB3-0D0A-C4AA-E88919B48F9D}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PubSub", "src\DataStreamSuite\PubSub\PubSub.csproj", "{C13A5ABD-F739-4BE8-A2FE-511E989A5B43}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DataStreamCore", "src\DataStreamSuite\DataStreamCore\DataStreamCore.csproj", "{F7C6F079-67BA-4899-9B43-D3F8C121D264}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ArithmeticExpressions", "src\DataStreamSuite\ArithmeticExpressions\ArithmeticExpressions.csproj", "{E60C119D-2919-4E2F-9D39-90DB1A8FF9A7}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BaseUtilities", "src\DataStreamSuite\BaseUtilities\BaseUtilities.csproj", "{ECBAA198-EC93-4174-8156-BDA5F5E95042}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BooleanExpressions", "src\DataStreamSuite\BooleanExpressions\BooleanExpressions.csproj", "{F54AE5C0-2ECA-4151-82E6-0D7EFE88FF40}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bts.ColumnExpressions", "src\DataStreamSuite\Bts.ColumnExpressions\Bts.ColumnExpressions.csproj", "{A898C6C3-F134-4AF0-AFB3-3834C58CC0D7}"
-EndProject
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 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
-	GlobalSection(NestedProjects) = preSolution
-		{D7C6B9C7-1058-B1EA-FEE6-34C56B05AEDB} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B}
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-		{F54AE5C0-2ECA-4151-82E6-0D7EFE88FF40} = {60E0D592-FFB3-0D0A-C4AA-E88919B48F9D}
-		{A898C6C3-F134-4AF0-AFB3-3834C58CC0D7} = {60E0D592-FFB3-0D0A-C4AA-E88919B48F9D}
-		{1E296FB3-D185-4A95-A1EB-AA5B37B85C60} = {60E0D592-FFB3-0D0A-C4AA-E88919B48F9D}
-		{B6070F41-8759-448B-B56D-A7D15D489569} = {60E0D592-FFB3-0D0A-C4AA-E88919B48F9D}
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-		{C5A3B5EA-BE9F-76E5-E9B8-8A22B289B295} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B}
-		{42C014A0-00C5-0620-8552-38912E891A7F} = {C5A3B5EA-BE9F-76E5-E9B8-8A22B289B295}
-		{D432F3E9-3D2F-4623-B7B9-CEBA6701FFC3} = {42C014A0-00C5-0620-8552-38912E891A7F}
-		{DD00F5D5-6C2F-4FDA-AE3D-25CF01A9A224} = {C5A3B5EA-BE9F-76E5-E9B8-8A22B289B295}
-		{2B8243FF-60C6-4607-8AAE-7762D29B0A48} = {C5A3B5EA-BE9F-76E5-E9B8-8A22B289B295}
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {422D1620-0166-4C26-9A81-CA8A2EB1AB58}
+	EndGlobalSection
+	GlobalSection(Performance) = preSolution
+		HasPerformanceSessions = true
 	EndGlobalSection
 EndGlobal
@@ -8,6 +8,7 @@
   public int Integer;
   public double Real;
   public string Identifier;
+   public DateTime DateTime; 
   public ImmutableList<IArithmeticExpression> Arguments;
   public ImmutableList<Assignment> Assignments;
   public IArithmeticExpression Argument;
@@ -11,20 +11,10 @@
    <PackageReference Include="YaccLexTools" Version="1.2.2" />
  </ItemGroup>

-  <Choose>
-    <When Condition="'$(UseProjectRefs)' == 'true'">
-      <ItemGroup>
-        <ProjectReference Include="..\ExpressionCore\ExpressionCore.csproj" />
-        <ProjectReference Include="..\..\cs\Bts.Spark.Core\Bts.Spark.Core.csproj" />
-      </ItemGroup>
-    </When>
-    <Otherwise>
-      <ItemGroup>
-        <PackageReference Include="ExpressionCore" Version="$(SparkVersion)" />
-        <PackageReference Include="Bts.Spark.Core" Version="$(SparkVersion)" />
-      </ItemGroup>
-    </Otherwise>
-  </Choose>
+  <ItemGroup>
+    <ProjectReference Include="..\ExpressionCore\ExpressionCore.csproj" />
+    <ProjectReference Include="..\..\client\spark_core\spark_core.csproj" />
+  </ItemGroup>

  <ItemGroup Label="ArithmeticExpression">
    <Scanner Include="ArithmeticExpressionTokens.lex" />
@@ -5,5 +5,9 @@
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>
-  
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\client\spark_core\spark_core.csproj" />
+  </ItemGroup>
+
 </Project>
@@ -1,22 +1,41 @@
-using System.Diagnostics;
+using mbts.spark;

-namespace BCG.Utilities.General;
+using System;
+using System.Runtime;

-/// <summary>
-/// Summary description for Crono.
-/// </summary>
-public class Crono {
-   readonly Stopwatch myTimer = new();
+namespace BCG.Utilities.General
+{
+	/// <summary>
+	/// Summary description for Crono.
+	/// </summary>
+	public class Crono
+	{
+      public Crono()
+      {
+         myTimer = new HighPerformanceTimer();
+      }

-   public void start() =>
-      myTimer.Start();
+      public void start() 
+      {myTimer.start();}

-   public void stop() =>
-      myTimer.Stop();
+      public void stop()
+      {myTimer.stop();}

-   public TimeSpan time =>
-      myTimer.Elapsed;
+      public TimeSpan time
+      {
+         get 
+         {
+            return new TimeSpan((long) (myTimer.totalMilliseconds * TimeSpan.TicksPerMillisecond));
+         }
+      }
+
+      public double miliseconds
+      {
+         get
+         {return myTimer.totalMilliseconds;}
+      }
+
+      private HighPerformanceTimer myTimer;
+	}

-   public double miliseconds =>
-      myTimer.Elapsed.TotalMilliseconds;
 }
@@ -1 +0,0 @@
-r=TimeSeriesStream(ReplayFutureLiveBBOStream("ES"))
@@ -1,3 +0,0 @@
-x,y,z,id
-123,1.001,abc,1
-123,1.001,abc,0
@@ -1,3 +0,0 @@
-x,y,z,id
-123,1.001,abc,1
-123,1.001,abc,0
@@ -1,78 +0,0 @@
-id,ts_event,contract,bid_price,bid_size,ask_price,ask_size,timestamp
-76,2026-03-13T05:57:25.177965500Z,ESU5,6363.75,51,6364,63,3/13/2026 5:57:25 AM
-75,2026-03-13T05:57:25.068062900Z,ESU5,6363.75,52,6364,63,3/13/2026 5:57:25 AM
-74,2026-03-13T05:57:24.963428500Z,ESU5,6363.75,56,6364,63,3/13/2026 5:57:24 AM
-73,2026-03-13T05:57:24.781215700Z,ESU5,6363.75,57,6364,63,3/13/2026 5:57:24 AM
-72,2026-03-13T05:57:24.676290100Z,ESU5,6363.75,57,6364,63,3/13/2026 5:57:24 AM
-71,2026-03-13T05:57:24.566898400Z,ESU5,6363.75,56,6364,63,3/13/2026 5:57:24 AM
-70,2026-03-13T05:57:24.430800400Z,ESU5,6363.75,57,6364,63,3/13/2026 5:57:24 AM
-69,2026-03-13T05:57:24.273683400Z,ESU5,6363.75,56,6364,63,3/13/2026 5:57:24 AM
-68,2026-03-13T05:57:24.167656100Z,ESU5,6363.75,56,6364,64,3/13/2026 5:57:24 AM
-67,2026-03-13T05:57:23.995720100Z,ESU5,6363.75,56,6364,65,3/13/2026 5:57:23 AM
-66,2026-03-13T05:57:23.894029100Z,ESU5,6363.75,56,6364,68,3/13/2026 5:57:23 AM
-65,2026-03-13T05:57:23.728897300Z,ESU5,6363.75,56,6364,68,3/13/2026 5:57:23 AM
-64,2026-03-13T05:57:23.614316800Z,ESU5,6363.75,52,6364,68,3/13/2026 5:57:23 AM
-63,2026-03-13T05:57:23.503752700Z,ESU5,6363.75,51,6364,68,3/13/2026 5:57:23 AM
-62,2026-03-13T05:57:23.289108200Z,ESU5,6363.75,50,6364,68,3/13/2026 5:57:23 AM
-61,2026-03-13T05:57:23.155673400Z,ESU5,6363.75,49,6364,68,3/13/2026 5:57:23 AM
-60,2026-03-13T05:57:23.028898400Z,ESU5,6363.75,48,6364,68,3/13/2026 5:57:23 AM
-59,2026-03-13T05:57:22.887132700Z,ESU5,6363.75,46,6364,68,3/13/2026 5:57:22 AM
-58,2026-03-13T05:57:22.676916300Z,ESU5,6363.75,44,6364,68,3/13/2026 5:57:22 AM
-57,2026-03-13T05:57:22.520328000Z,ESU5,6363.75,43,6364,68,3/13/2026 5:57:22 AM
-56,2026-03-13T05:57:22.405244600Z,ESU5,6363.75,43,6364,69,3/13/2026 5:57:22 AM
-55,2026-03-13T05:57:22.294674100Z,ESU5,6363.75,41,6364,69,3/13/2026 5:57:22 AM
-54,2026-03-13T05:57:22.163467900Z,ESU5,6363.75,38,6364,69,3/13/2026 5:57:22 AM
-53,2026-03-13T05:57:21.992443000Z,ESU5,6363.75,38,6364,71,3/13/2026 5:57:21 AM
-52,2026-03-13T05:57:21.872338400Z,ESU5,6363.75,38,6364,71,3/13/2026 5:57:21 AM
-51,2026-03-13T05:57:21.742801800Z,ESU5,6363.75,37,6364,71,3/13/2026 5:57:21 AM
-50,2026-03-13T05:57:21.557711100Z,ESU5,6363.75,37,6364,72,3/13/2026 5:57:21 AM
-49,2026-03-13T05:57:21.434977000Z,ESU5,6363.75,37,6364,73,3/13/2026 5:57:21 AM
-48,2026-03-13T05:57:21.285751600Z,ESU5,6363.75,37,6364,72,3/13/2026 5:57:21 AM
-47,2026-03-13T05:57:21.184392000Z,ESU5,6363.75,37,6364,73,3/13/2026 5:57:21 AM
-46,2026-03-13T05:57:21.076843800Z,ESU5,6363.75,34,6364,73,3/13/2026 5:57:21 AM
-45,2026-03-13T05:57:20.894131800Z,ESU5,6363.75,32,6364,73,3/13/2026 5:57:20 AM
-44,2026-03-13T05:57:20.759550000Z,ESU5,6363.75,30,6364,73,3/13/2026 5:57:20 AM
-43,2026-03-13T05:57:20.641547900Z,ESU5,6363.75,28,6364,73,3/13/2026 5:57:20 AM
-42,2026-03-13T05:57:20.540293200Z,ESU5,6363.75,27,6364,73,3/13/2026 5:57:20 AM
-41,2026-03-13T05:57:20.439034600Z,ESU5,6363.75,27,6364,74,3/13/2026 5:57:20 AM
-40,2026-03-13T05:57:20.337795000Z,ESU5,6363.75,27,6364,73,3/13/2026 5:57:20 AM
-39,2026-03-13T05:57:20.236606600Z,ESU5,6363.75,27,6364,72,3/13/2026 5:57:20 AM
-38,2026-03-13T05:57:20.135417700Z,ESU5,6363.75,30,6364,72,3/13/2026 5:57:20 AM
-37,2026-03-13T05:57:20.034272700Z,ESU5,6363.75,32,6364,72,3/13/2026 5:57:20 AM
-36,2026-03-13T05:57:19.933096800Z,ESU5,6363.75,34,6364,72,3/13/2026 5:57:19 AM
-35,2026-03-13T05:57:19.832012600Z,ESU5,6363.75,36,6364,72,3/13/2026 5:57:19 AM
-34,2026-03-13T05:57:19.730878500Z,ESU5,6363.75,38,6364,72,3/13/2026 5:57:19 AM
-33,2026-03-13T05:57:19.629787400Z,ESU5,6363.75,38,6364,71,3/13/2026 5:57:19 AM
-32,2026-03-13T05:57:19.528697000Z,ESU5,6363.75,38,6364,70,3/13/2026 5:57:19 AM
-31,2026-03-13T05:57:19.427077000Z,ESU5,6363.75,38,6364,71,3/13/2026 5:57:19 AM
-30,2026-03-13T05:57:19.326450300Z,ESU5,6363.75,39,6364,71,3/13/2026 5:57:19 AM
-29,2026-03-13T05:57:19.225427900Z,ESU5,6363.75,39,6364,70,3/13/2026 5:57:19 AM
-28,2026-03-13T05:57:19.123339800Z,ESU5,6363.75,40,6364,70,3/13/2026 5:57:19 AM
-27,2026-03-13T05:57:19.021936500Z,ESU5,6363.75,41,6364,70,3/13/2026 5:57:19 AM
-26,2026-03-13T05:57:18.920859200Z,ESU5,6363.75,45,6364,70,3/13/2026 5:57:18 AM
-25,2026-03-13T05:57:18.820148400Z,ESU5,6363.75,46,6364,70,3/13/2026 5:57:18 AM
-24,2026-03-13T05:57:18.718988100Z,ESU5,6363.75,46,6364,69,3/13/2026 5:57:18 AM
-23,2026-03-13T05:57:18.618299700Z,ESU5,6363.75,49,6364,69,3/13/2026 5:57:18 AM
-22,2026-03-13T05:57:18.517138100Z,ESU5,6363.75,52,6364,69,3/13/2026 5:57:18 AM
-21,2026-03-13T05:57:18.416335200Z,ESU5,6363.75,53,6364,69,3/13/2026 5:57:18 AM
-20,2026-03-13T05:57:18.315335900Z,ESU5,6363.75,55,6364,69,3/13/2026 5:57:18 AM
-19,2026-03-13T05:57:18.214368600Z,ESU5,6363.75,57,6364,69,3/13/2026 5:57:18 AM
-18,2026-03-13T05:57:18.113754700Z,ESU5,6363.75,57,6364,65,3/13/2026 5:57:18 AM
-17,2026-03-13T05:57:18.012706500Z,ESU5,6363.75,56,6364,65,3/13/2026 5:57:18 AM
-16,2026-03-13T05:57:17.911672600Z,ESU5,6363.75,54,6364,65,3/13/2026 5:57:17 AM
-15,2026-03-13T05:57:17.810879900Z,ESU5,6363.75,52,6364,65,3/13/2026 5:57:17 AM
-14,2026-03-13T05:57:17.710089700Z,ESU5,6363.75,49,6364,65,3/13/2026 5:57:17 AM
-13,2026-03-13T05:57:17.609388300Z,ESU5,6363.75,49,6364,67,3/13/2026 5:57:17 AM
-12,2026-03-13T05:57:17.508697400Z,ESU5,6363.75,49,6364,67,3/13/2026 5:57:17 AM
-11,2026-03-13T05:57:17.408027000Z,ESU5,6363.75,53,6364,67,3/13/2026 5:57:17 AM
-10,2026-03-13T05:57:17.307406200Z,ESU5,6363.75,49,6364,67,3/13/2026 5:57:17 AM
-9,2026-03-13T05:57:17.206714300Z,ESU5,6363.75,49,6364,71,3/13/2026 5:57:17 AM
-8,2026-03-13T05:57:17.105530300Z,ESU5,6363.75,48,6364,71,3/13/2026 5:57:17 AM
-7,2026-03-13T05:57:17.004796800Z,ESU5,6363.75,47,6364,71,3/13/2026 5:57:17 AM
-6,2026-03-13T05:57:16.904113900Z,ESU5,6363.75,46,6364,71,3/13/2026 5:57:16 AM
-5,2026-03-13T05:57:16.803381900Z,ESU5,6363.75,43,6364,71,3/13/2026 5:57:16 AM
-4,2026-03-13T05:57:16.701969600Z,ESU5,6363.75,43,6364,72,3/13/2026 5:57:16 AM
-3,2026-03-13T05:57:16.600765600Z,ESU5,6363.75,43,6364,73,3/13/2026 5:57:16 AM
-2,2026-03-13T05:57:16.499986300Z,ESU5,6363.75,43,6364,74,3/13/2026 5:57:16 AM
-1,2026-03-13T05:57:16.399241700Z,ESU5,6363.75,43,6364,75,3/13/2026 5:57:16 AM
-0,2026-03-13T05:57:16.264038000Z,ESU5,6363.75,43,6364,76,3/13/2026 5:57:16 AM
@@ -1,91 +0,0 @@
-id,ts_event,contract,bid_price,bid_size,ask_price,ask_size,timestamp
-89,2026-03-13T05:57:26.904401600Z,ESU5,6363.75,43,6364,67,3/13/2026 5:57:26 AM
-88,2026-03-13T05:57:26.778037200Z,ESU5,6363.75,43,6364,69,3/13/2026 5:57:26 AM
-87,2026-03-13T05:57:26.597038500Z,ESU5,6363.75,43,6364,69,3/13/2026 5:57:26 AM
-86,2026-03-13T05:57:26.438768300Z,ESU5,6363.75,43,6364,68,3/13/2026 5:57:26 AM
-85,2026-03-13T05:57:26.328259100Z,ESU5,6363.75,43,6364,67,3/13/2026 5:57:26 AM
-84,2026-03-13T05:57:26.216211200Z,ESU5,6363.75,44,6364,67,3/13/2026 5:57:26 AM
-83,2026-03-13T05:57:26.099281200Z,ESU5,6363.75,46,6364,67,3/13/2026 5:57:26 AM
-82,2026-03-13T05:57:25.979814900Z,ESU5,6363.75,48,6364,67,3/13/2026 5:57:25 AM
-81,2026-03-13T05:57:25.852317700Z,ESU5,6363.75,48,6364,66,3/13/2026 5:57:25 AM
-80,2026-03-13T05:57:25.684323100Z,ESU5,6363.75,48,6364,65,3/13/2026 5:57:25 AM
-79,2026-03-13T05:57:25.539436900Z,ESU5,6363.75,48,6364,64,3/13/2026 5:57:25 AM
-78,2026-03-13T05:57:25.425439200Z,ESU5,6363.75,49,6364,64,3/13/2026 5:57:25 AM
-77,2026-03-13T05:57:25.298054100Z,ESU5,6363.75,51,6364,64,3/13/2026 5:57:25 AM
-76,2026-03-13T05:57:25.177965500Z,ESU5,6363.75,51,6364,63,3/13/2026 5:57:25 AM
-75,2026-03-13T05:57:25.068062900Z,ESU5,6363.75,52,6364,63,3/13/2026 5:57:25 AM
-74,2026-03-13T05:57:24.963428500Z,ESU5,6363.75,56,6364,63,3/13/2026 5:57:24 AM
-73,2026-03-13T05:57:24.781215700Z,ESU5,6363.75,57,6364,63,3/13/2026 5:57:24 AM
-72,2026-03-13T05:57:24.676290100Z,ESU5,6363.75,57,6364,63,3/13/2026 5:57:24 AM
-71,2026-03-13T05:57:24.566898400Z,ESU5,6363.75,56,6364,63,3/13/2026 5:57:24 AM
-70,2026-03-13T05:57:24.430800400Z,ESU5,6363.75,57,6364,63,3/13/2026 5:57:24 AM
-69,2026-03-13T05:57:24.273683400Z,ESU5,6363.75,56,6364,63,3/13/2026 5:57:24 AM
-68,2026-03-13T05:57:24.167656100Z,ESU5,6363.75,56,6364,64,3/13/2026 5:57:24 AM
-67,2026-03-13T05:57:23.995720100Z,ESU5,6363.75,56,6364,65,3/13/2026 5:57:23 AM
-66,2026-03-13T05:57:23.894029100Z,ESU5,6363.75,56,6364,68,3/13/2026 5:57:23 AM
-65,2026-03-13T05:57:23.728897300Z,ESU5,6363.75,56,6364,68,3/13/2026 5:57:23 AM
-64,2026-03-13T05:57:23.614316800Z,ESU5,6363.75,52,6364,68,3/13/2026 5:57:23 AM
-63,2026-03-13T05:57:23.503752700Z,ESU5,6363.75,51,6364,68,3/13/2026 5:57:23 AM
-62,2026-03-13T05:57:23.289108200Z,ESU5,6363.75,50,6364,68,3/13/2026 5:57:23 AM
-61,2026-03-13T05:57:23.155673400Z,ESU5,6363.75,49,6364,68,3/13/2026 5:57:23 AM
-60,2026-03-13T05:57:23.028898400Z,ESU5,6363.75,48,6364,68,3/13/2026 5:57:23 AM
-59,2026-03-13T05:57:22.887132700Z,ESU5,6363.75,46,6364,68,3/13/2026 5:57:22 AM
-58,2026-03-13T05:57:22.676916300Z,ESU5,6363.75,44,6364,68,3/13/2026 5:57:22 AM
-57,2026-03-13T05:57:22.520328000Z,ESU5,6363.75,43,6364,68,3/13/2026 5:57:22 AM
-56,2026-03-13T05:57:22.405244600Z,ESU5,6363.75,43,6364,69,3/13/2026 5:57:22 AM
-55,2026-03-13T05:57:22.294674100Z,ESU5,6363.75,41,6364,69,3/13/2026 5:57:22 AM
-54,2026-03-13T05:57:22.163467900Z,ESU5,6363.75,38,6364,69,3/13/2026 5:57:22 AM
-53,2026-03-13T05:57:21.992443000Z,ESU5,6363.75,38,6364,71,3/13/2026 5:57:21 AM
-52,2026-03-13T05:57:21.872338400Z,ESU5,6363.75,38,6364,71,3/13/2026 5:57:21 AM
-51,2026-03-13T05:57:21.742801800Z,ESU5,6363.75,37,6364,71,3/13/2026 5:57:21 AM
-50,2026-03-13T05:57:21.557711100Z,ESU5,6363.75,37,6364,72,3/13/2026 5:57:21 AM
-49,2026-03-13T05:57:21.434977000Z,ESU5,6363.75,37,6364,73,3/13/2026 5:57:21 AM
-48,2026-03-13T05:57:21.285751600Z,ESU5,6363.75,37,6364,72,3/13/2026 5:57:21 AM
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-11,2026-03-13T05:57:17.408027000Z,ESU5,6363.75,53,6364,67,3/13/2026 5:57:17 AM
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@@ -1,187 +0,0 @@
-from __future__ import annotations
-
-from dataclasses import dataclass
-import json
-import os
-import subprocess
-import threading
-from typing import Any, Callable, Dict, List, Optional
-
-
-@dataclass
-class DataPacket:
-    state: List[Any]
-    deleted_ids: List[int]
-    added_ids: List[int]
-
-
-@dataclass
-class DslResponse:
-    data_packet: DataPacket | None
-    req_id: str | None
-    error: str | None
-
-
-def _resolve_interop_exe() -> str:
-    env_path = os.environ.get("BLUEORB_DSL_INTEROP")
-    if env_path and os.path.isfile(env_path):
-        return env_path
-    candidates = [
-        "/workspaces/spark/build/Debug/bin/net8.0/BlueOrbDSLInteropServer",
-        "/workspaces/spark/build/Release/bin/net8.0/BlueOrbDSLInteropServer",
-    ]
-    for path in candidates:
-        if os.path.isfile(path):
-            return path
-    raise FileNotFoundError(
-        "BlueOrbDSLInterop executable not found. "
-        "Set BLUEORB_DSL_INTEROP to the full path."
-    )
-
-_interop_proc: Optional[subprocess.Popen] = None
-_reader_thread: Optional[threading.Thread] = None
-_callbacks: Dict[str, Callable[[DslResponse], None]] = {}
-_first_response_events: Dict[str, threading.Event] = {}
-_first_responses: Dict[str, DslResponse] = {}
-_state_lock = threading.Lock()
-
-
-def start_interop() -> None:
-    """
-    Start the BlueOrbDSLInteropServer process if it's not already running.
-    """
-    global _interop_proc
-    if _interop_proc is not None and _interop_proc.poll() is None:
-        return
-    exe = _resolve_interop_exe()
-    _interop_proc = subprocess.Popen(
-        [exe],
-        stdin=subprocess.PIPE,
-        stdout=subprocess.PIPE,
-        stderr=subprocess.PIPE,
-        text=True,
-    )
-    _start_reader_thread()
-
-
-def stop_interop() -> None:
-    """
-    Stop the BlueOrbDSLInteropServer process if it's running.
-    """
-    global _interop_proc
-    if _interop_proc is None:
-        return
-    if _interop_proc.poll() is None and _interop_proc.stdin is not None:
-        _interop_proc.stdin.write(":exit\n")
-        _interop_proc.stdin.flush()
-        _interop_proc.stdin.close()
-        _interop_proc.wait(timeout=5)
-    global _reader_thread
-    if _reader_thread is not None:
-        _reader_thread.join(timeout=1)
-        _reader_thread = None
-    with _state_lock:
-        _callbacks.clear()
-        _first_response_events.clear()
-        _first_responses.clear()
-    _interop_proc = None
-
-
-def get_interop_status() -> tuple[bool, int | None]:
-    """
-    Returns current interop process status as (is_running, exit_code).
-    exit_code is None when process was never started or is still running.
-    """
-    proc = _interop_proc
-    if proc is None:
-        return (False, None)
-    rc = proc.poll()
-    return (rc is None, rc)
-
-
-def get_dsl(dsl: str, req_id: str, callback: Callable[[DslResponse], None]) -> DslResponse:
-    """
-    Sends the DSL to BlueOrbDSLInteropServer and returns the first response for this req_id.
-    Subsequent streaming updates for the same req_id are delivered via callback.
-    Requires start_interop() to be called first.
-    """
-    assert _interop_proc is not None and _interop_proc.poll() is None, (
-        "Interop process is not running. Call start_interop() first."
-    )
-    assert _interop_proc.stdin is not None
-
-    payload = {"dsl": dsl, "req_id": req_id}
-    first_event = threading.Event()
-    with _state_lock:
-        _callbacks[req_id] = callback
-        _first_response_events[req_id] = first_event
-        _first_responses.pop(req_id, None)
-
-    _interop_proc.stdin.write(json.dumps(payload) + "\n")
-    _interop_proc.stdin.flush()
-
-    if not first_event.wait(timeout=10):
-        with _state_lock:
-            _first_response_events.pop(req_id, None)
-            _callbacks.pop(req_id, None)
-        raise TimeoutError(f"No response received for req_id '{req_id}' from BlueOrbDSLInterop.")
-
-    with _state_lock:
-        response = _first_responses.pop(req_id, None)
-        _first_response_events.pop(req_id, None)
-    if response is None:
-        raise RuntimeError(f"Missing first response for req_id '{req_id}'.")
-    return response
-
-
-def _start_reader_thread() -> None:
-    global _reader_thread
-    if _reader_thread is not None and _reader_thread.is_alive():
-        return
-    _reader_thread = threading.Thread(target=_reader_loop, daemon=True)
-    _reader_thread.start()
-
-
-def _reader_loop() -> None:
-    while True:
-        proc = _interop_proc
-        if proc is None or proc.poll() is not None:
-            return
-        assert proc.stdout is not None
-        raw = proc.stdout.readline()
-        if raw == "":
-            return
-
-        line = raw.strip()
-        if not line:
-            continue
-
-        try:
-            payload = json.loads(line)
-        except json.JSONDecodeError:
-            continue
-
-        response = DslResponse(
-            data_packet=DataPacket(state=[payload.get("data_packet")], deleted_ids=[], added_ids=[]),
-            req_id=payload.get("req_id"),
-            error=payload.get("error"),
-        )
-        req_id = response.req_id
-        if not req_id:
-            continue
-
-        callback: Optional[Callable[[DslResponse], None]]
-        event: Optional[threading.Event]
-        with _state_lock:
-            callback = _callbacks.get(req_id)
-            event = _first_response_events.get(req_id)
-            if event is not None and req_id not in _first_responses:
-                _first_responses[req_id] = response
-                event.set()
-
-        if callback is not None:
-            try:
-                callback(response)
-            except Exception:
-                # Keep the reader alive if callback logic fails.
-                pass
@@ -1,33 +0,0 @@
-import os
-import sys
-import uuid
-
-_here = os.path.dirname(os.path.abspath(__file__))
-_parent = os.path.dirname(_here)
-if _parent not in sys.path:
-    sys.path.insert(0, _parent)
-
-from BlueOrbDSL import get_dsl, start_interop, stop_interop, DslResponse
-
-
-def on_packet(response: DslResponse) -> None:
-    print("callback from DSL Server, DslResponse:", response)
-
-
-def main() -> None:
-    start_interop()
-    try:
-        while True:
-            dsl = input("Enter DSL (or 'quit'): ").strip()
-            if dsl.lower() == "quit":
-                break
-            if not dsl:
-                continue
-            response = get_dsl(dsl, str(uuid.uuid4()), on_packet)
-            print("return:", response)
-    finally:
-        stop_interop()
-
-
-if __name__ == "__main__":
-    main()
@@ -1,844 +0,0 @@
-from __future__ import annotations
-
-import csv
-import time
-import os
-import sys
-import threading
-import uuid
-from collections import deque
-from datetime import datetime
-from typing import Any
-
-from rich.text import Text
-from rich.style import Style
-from textual import events
-from textual.app import App, ComposeResult
-from textual.binding import Binding
-from textual.containers import Container, Horizontal, Vertical
-from textual.widgets.text_area import TextAreaTheme
-from textual.widgets import Button, DataTable, Input, Static, TabbedContent, TabPane, TextArea, Tree
-
-_here = os.path.dirname(os.path.abspath(__file__))
-_parent = os.path.dirname(_here)
-if _parent not in sys.path:
-    sys.path.insert(0, _parent)
-
-from BlueOrbDSL import DslResponse, get_dsl, get_interop_status, start_interop, stop_interop
-
-
-class DSQALiveConsole(App):
-    DEFAULT_QUERY = (
-        'FROM market.ticks\n'
-        'WHERE symbol IN ("BTCUSD", "ETHUSD")\n'
-        "SELECT symbol, price, change, time"
-    )
-    LAST_QUERY_PATH = os.path.join(_here, "DSQA_LAST_EXECUTED_QUERY.txt")
-    DSL_HIGHLIGHT_QUERY = r"""
-    ; comments
-    (comment) @comment
-
-    ; assignment vars: lhs in x = SomeStream(...)
-    (assignment_expression
-      left: (identifier) @variable)
-
-    ; stream operators (function names ending with Stream)
-    (call_expression
-      function: (identifier) @function
-      (#match? @function "^[A-Za-z_][A-Za-z0-9_]*Stream$"))
-
-    ; normal function calls
-    (call_expression
-      function: (identifier) @function.method)
-
-    ; arguments and literals
-    (arguments (identifier) @parameter)
-    (string) @string
-    (number) @number
-    (true) @constant.builtin
-    (false) @constant.builtin
-    (null) @constant.builtin
-    """
-
-    BINDINGS = [
-        Binding("ctrl+r", "execute", "Execute"),
-        Binding("f11", "execute", show=False),
-        Binding("alt+enter", "execute", show=False),
-        # Override Textual's default Ctrl+Q quit to avoid accidental VS Code close.
-        Binding("ctrl+q", "noop", show=False),
-        Binding("ctrl+x", "quit", "Quit"),
-    ]
-    CSS = """
-    Screen {
-        background: #060a1c;
-        color: #d8dff4;
-    }
-
-    #window_close_button {
-        width: 3;
-        min-width: 3;
-        height: 1;
-        margin: 0;
-        border: none;
-        background: #3a1015;
-        color: #ff9ca8;
-        text-style: bold;
-    }
-
-    #window_close_button:hover,
-    #window_close_button:focus {
-        background: #5a1620;
-        color: #ffd6db;
-    }
-
-    #root {
-        padding: 0 1 0 1;
-        height: 1fr;
-    }
-
-    #query_panel {
-        background: #070d27;
-        height: 33%;
-        margin-top: 1;
-    }
-
-    #query_header_row {
-        height: 1;
-        border-bottom: solid #596285;
-    }
-
-    #query_header {
-        width: auto;
-        color: #9eb0d4;
-        content-align: left middle;
-    }
-
-    #query_header_spacer {
-        width: 1fr;
-    }
-
-    #query_input {
-        border: solid #697597;
-        background: #050b22;
-        color: #cfd7eb;
-        height: 1fr;
-        padding-left: 1;
-    }
-
-    #results_panel {
-        background: #070d27;
-        height: 1fr;
-        margin-top: 1;
-    }
-
-    #results_toolbar {
-        height: 3;
-        padding: 0 1;
-    }
-
-    #results_left {
-        width: auto;
-        height: 3;
-        margin-top: 0;
-    }
-
-    #stream_toggle_button {
-        width: auto;
-        min-width: 11;
-        margin-top: 0;
-        margin-left: 1;
-        border: none;
-        background: #070d27;
-        color: #79afe7;
-    }
-
-    #stream_toggle_button:hover,
-    #stream_toggle_button:focus {
-        background: #111a3f;
-        color: #9bc9f6;
-    }
-
-    #execute_button {
-        width: 5;
-        min-width: 5;
-        margin-top: 0;
-        margin-left: 1;
-        border: none;
-        background: #10341f;
-        color: #7ef1ac;
-        text-style: bold;
-    }
-
-    #execute_button:hover,
-    #execute_button:focus {
-        background: #1a4f30;
-        color: #b3ffd0;
-    }
-
-    #results_actions {
-        width: auto;
-        height: 3;
-        margin-top: 0;
-    }
-
-    #results_spacer {
-        width: 1fr;
-    }
-
-    #results_search {
-        width: 30;
-        min-width: 24;
-        margin-right: 1;
-        border: none;
-        background: #060d28;
-        color: #d5def3;
-        padding: 0 1;
-    }
-
-    #search_button,
-    #copy_button,
-    #export_button {
-        width: auto;
-        min-width: 11;
-        margin-left: 1;
-        border: none;
-        background: #070d27;
-        color: #79afe7;
-    }
-
-    #search_button:hover,
-    #copy_button:hover,
-    #export_button:hover,
-    #search_button:focus,
-    #copy_button:focus,
-    #export_button:focus {
-        background: #111a3f;
-        color: #9bc9f6;
-    }
-
-    #results_table {
-        border: solid #697597;
-        background: #050b22;
-        height: 1fr;
-    }
-
-    #results_table .datatable--header,
-    #results_table .datatable--header-hover,
-    #results_table .datatable--header-cursor {
-        background: #0c1535;
-        color: #6ea6df;
-        text-style: bold;
-    }
-
-    #results_table .datatable--even-row {
-        background: #050b22;
-    }
-
-    #results_table .datatable--odd-row {
-        background: #07102a;
-    }
-
-    #results_table .datatable--cursor {
-        background: #19335b;
-        color: #dbe8ff;
-    }
-
-    #results_table .datatable--fixed-cursor {
-        background: #132949;
-        color: #c8dbff;
-    }
-
-    #results_table.error .datatable--odd-row,
-    #results_table.error .datatable--even-row,
-    #results_table.error .datatable--cursor,
-    #results_table.error .datatable--fixed-cursor {
-        color: #f17486;
-        text-style: bold;
-    }
-
-    #results_panel.paused {
-        background: #150f1f;
-    }
-
-    #results_table.paused {
-        background: #130f18;
-    }
-
-    #results_table.paused .datatable--header,
-    #results_table.paused .datatable--header-hover,
-    #results_table.paused .datatable--header-cursor {
-        background: #262338;
-        color: #8b90a1;
-        text-style: bold;
-    }
-
-    #results_tabs {
-        height: 1fr;
-        background: #070d27;
-    }
-
-    #data_tab,
-    #tree_tab {
-        padding: 0;
-    }
-
-    #ops_tree {
-        border: solid #697597;
-        background: #050b22;
-        color: #cfd7eb;
-        height: 1fr;
-    }
-
-    #bottom_status_bar {
-        border-top: solid #596285;
-        background: #070d27;
-        height: 2;
-        margin: 0;
-        padding: 0 1;
-    }
-
-    #status_right_wrap {
-        width: 1fr;
-    }
-
-    #status_row {
-        height: 1;
-        margin-top: 0;
-        width: 1fr;
-    }
-
-    #live_status {
-        width: 1fr;
-        color: #b3bed9;
-        content-align: right middle;
-    }
-    """
-
-    def compose(self) -> ComposeResult:
-        with Container(id="root"):
-            with Vertical(id="query_panel"):
-                with Horizontal(id="query_header_row"):
-                    yield Static("DSL Query", id="query_header")
-                    yield Static("", id="query_header_spacer")
-                    yield Button("✕", id="window_close_button")
-                yield TextArea(
-                    text=self._load_last_query(),
-                    id="query_input",
-                    language="javascript",
-                    theme="vscode_dark",
-                    show_line_numbers=True,
-                )
-            with Vertical(id="results_panel"):
-                with Horizontal(id="results_toolbar"):
-                    with Horizontal(id="results_left"):
-                        yield Button("▶", id="execute_button")
-                        yield Button("⏸ Pause", id="stream_toggle_button")
-                    yield Static("", id="results_spacer")
-                    with Horizontal(id="results_actions"):
-                        yield Input(placeholder="Search: col:value", id="results_search")
-                        yield Button("⌕ Search", id="search_button")
-                        yield Button("⧉ Copy", id="copy_button")
-                        yield Button("⇩ Export", id="export_button")
-                with TabbedContent(initial="data_tab", id="results_tabs"):
-                    with TabPane("Data", id="data_tab"):
-                        table = DataTable(id="results_table")
-                        table.cursor_type = "cell"
-                        table.show_cursor = True
-                        table.zebra_stripes = True
-                        yield table
-                    with TabPane("Operators", id="tree_tab"):
-                        tree = Tree("Assemblies", id="ops_tree")
-                        tree.show_root = False
-                        yield tree
-        with Horizontal(id="bottom_status_bar"):
-            with Horizontal(id="status_right_wrap"):
-                with Horizontal(id="status_row"):
-                    yield Static(
-                        "Rows: 0 | Rate: 0.0/s | Total Updates: 0 | Uptime: 00:00:00 | Last Update: --:--:--",
-                        id="live_status",
-                    )
-
-    def on_mount(self) -> None:
-        self._update_timestamps: deque[float] = deque()
-        self._last_update_at: datetime | None = None
-        self._stream_started_at: float | None = None
-        self._total_updates = 0
-        self._last_row_count = 0
-        self._current_col_names: list[str] = []
-        self._current_rows: list[dict[str, Any]] = []
-        self._column_width_cache: dict[str, int] = {}
-        self._ops_catalog_rows: list[dict[str, Any]] = []
-        self._ops_catalog_error: str | None = None
-        self._ops_catalog_loaded = False
-        self._ops_catalog_loading = False
-        self._interop_is_running = False
-        self._interop_exit_code: int | None = None
-        self._grid_updates_enabled = True
-        self._paused_latest_response: DslResponse | None = None
-        self._ensure_interop_started()
-        self._refresh_ops_tree()
-        self._refresh_ops_tree_async()
-        self._configure_query_highlighting()
-        self._set_pause_visuals()
-        self.set_interval(0.5, self._refresh_status)
-
-    def _configure_query_highlighting(self) -> None:
-        query_input = self.query_one("#query_input", TextArea)
-        query_input.language = "javascript"
-        dsl_theme = TextAreaTheme(
-            "dsqa_ide",
-            base_style=Style.parse("#d7deee on #171a22"),
-            gutter_style=Style.parse("#8a93a8 on #1c212b"),
-            cursor_style=Style.parse("#ffffff on #2b3242"),
-            cursor_line_style=Style.parse("on #202534"),
-            cursor_line_gutter_style=Style.parse("#a6afc4 on #202534"),
-            selection_style=Style.parse("on #2a3f67"),
-            bracket_matching_style=Style.parse("bold #7fd9ff"),
-            syntax_styles={
-                "comment": Style.parse("italic #6f778a"),
-                "variable": Style.parse("bold #4ec9b0"),
-                "function": Style.parse("bold #4fc1ff"),
-                "function.method": Style.parse("bold #70d4ff"),
-                "parameter": Style.parse("#c6d4f8"),
-                "string": Style.parse("#d7ba7d"),
-                "number": Style.parse("#b5cea8"),
-                "constant.builtin": Style.parse("bold #569cd6"),
-            },
-        )
-        query_input.register_theme(dsl_theme)
-        query_input.theme = "dsqa_ide"
-        try:
-            query_input.update_highlight_query(self.DSL_HIGHLIGHT_QUERY)
-        except Exception:
-            pass
-
-    def on_shutdown(self) -> None:
-        stop_interop()
-
-    @staticmethod
-    def _ensure_interop_started() -> None:
-        try:
-            start_interop()
-        except Exception:
-            pass
-
-    def action_execute(self) -> None:
-        tabs = self.query_one("#results_tabs", TabbedContent)
-        tabs.active = "data_tab"
-        self._grid_updates_enabled = True
-        self._set_stream_toggle_label()
-        self._set_pause_visuals()
-        self._execute_query_async()
-
-    def action_noop(self) -> None:
-        pass
-
-    def on_button_pressed(self, event: Button.Pressed) -> None:
-        button_id = event.button.id
-        if button_id == "search_button":
-            self._search_results()
-        elif button_id == "copy_button":
-            self._copy_selected_cell()
-        elif button_id == "export_button":
-            self._export_results_csv()
-        elif button_id == "execute_button":
-            self.action_execute()
-        elif button_id == "window_close_button":
-            self.exit()
-        elif button_id == "stream_toggle_button":
-            self._toggle_stream_painting()
-
-    def on_input_submitted(self, event: Input.Submitted) -> None:
-        if event.input.id == "results_search":
-            self._search_results()
-
-    def on_click(self, event: events.Click) -> None:
-        if getattr(event.widget, "id", None) != "ops_tree":
-            return
-        line = event.style.meta.get("line")
-        if line is None:
-            return
-        tree = self.query_one("#ops_tree", Tree)
-        node = tree.get_node_at_line(line)
-        if node is None:
-            return
-        node_data = node.data
-        if not isinstance(node_data, dict) or node_data.get("kind") != "constructor":
-            return
-        self._append_operator_to_query(self._stringify(node_data.get("op", "")).strip())
-
-    def _append_operator_to_query(self, op_name: str) -> None:
-        if not op_name:
-            return
-        query_input = self.query_one("#query_input", TextArea)
-        existing = query_input.text
-        if existing.strip():
-            separator = "" if existing.endswith("\n") else "\n"
-            query_input.text = f"{existing}{separator}{op_name}"
-        else:
-            query_input.text = op_name
-        query_input.focus()
-
-    def _execute_query_async(self) -> None:
-        self._ensure_interop_started()
-        query = self.query_one(TextArea).text.strip()
-        if not query:
-            return
-        self._column_width_cache.clear()
-        self._save_last_query(query)
-        self._update_timestamps.clear()
-        self._last_update_at = None
-        self._stream_started_at = time.monotonic()
-        self._total_updates = 0
-        self._last_row_count = 0
-        self._paused_latest_response = None
-        self._refresh_status()
-
-        req_id = str(uuid.uuid4())
-
-        def _run() -> None:
-            try:
-                def _on_response(resp: DslResponse) -> None:
-                    self.call_from_thread(self._render_response, resp)
-
-                get_dsl(query, req_id, _on_response)
-            except Exception as exc:
-                error_resp = DslResponse(data_packet=None, req_id=req_id, error=str(exc))
-                self.call_from_thread(self._render_response, error_resp)
-
-        threading.Thread(target=_run, daemon=True).start()
-
-    def _render_response(self, response: DslResponse) -> None:
-        if not self._grid_updates_enabled:
-            self._paused_latest_response = response
-            return
-        self._render_response_internal(response)
-
-    def _render_response_internal(self, response: DslResponse) -> None:
-        self._record_update()
-        table = self.query_one(DataTable)
-        table.remove_class("error")
-        prev_scroll_x = table.scroll_offset.x
-        prev_scroll_y = table.scroll_offset.y
-        table.clear(columns=True)
-
-        if response.error:
-            table.add_class("error")
-            error_text = self._stringify(response.error)
-            error_lines = error_text.splitlines() or [error_text]
-            self._current_col_names = []
-            self._current_rows = []
-            self._last_row_count = len(error_lines)
-            self._refresh_ops_tree()
-            table.add_columns("error")
-            for line in error_lines:
-                table.add_row(Text(line, style="bold #f17486"))
-            return
-
-        if response.data_packet is None or not response.data_packet.state:
-            self._current_col_names = []
-            self._current_rows = []
-            self._last_row_count = 0
-            self._refresh_ops_tree()
-            table.add_columns("empty")
-            table.add_row("no data")
-            return
-
-        data_packet = response.data_packet.state[0]
-        columns = data_packet.get("columns", [])
-        rows = data_packet.get("all", [])
-        if not isinstance(rows, list):
-            rows = []
-
-        col_names = [c.get("name", "") for c in columns]
-        if not col_names:
-            col_names = list(rows[0].keys()) if rows else ["empty"]
-
-        self._current_col_names = col_names
-        self._current_rows = rows
-        self._last_row_count = len(rows)
-        self._refresh_ops_tree()
-        for col_name in col_names:
-            width = self._column_width_cache.get(col_name, len(col_name))
-            for row in rows:
-                if not isinstance(row, dict):
-                    continue
-                cell_text = self._stringify(row.get(col_name, ""))
-                width = max(width, len(cell_text))
-            self._column_width_cache[col_name] = width
-            table.add_column(col_name, width=width)
-        for row in rows:
-            table.add_row(*[self._format_cell(c, row.get(c, "")) for c in col_names])
-        # Preserve user's viewport during streaming refreshes.
-        table.scroll_to(
-            x=min(prev_scroll_x, table.max_scroll_x),
-            y=min(prev_scroll_y, table.max_scroll_y),
-            animate=False,
-        )
-
-    @staticmethod
-    def _stringify(value: Any) -> str:
-        return "" if value is None else str(value)
-
-    @staticmethod
-    def _format_cell(column_name: str, value: Any) -> str | Text:
-        text = DSQALiveConsole._stringify(value)
-        lowered = column_name.lower()
-        if lowered == "id":
-            return Text(text, style="bold #9eb1d8")
-        if lowered == "symbol":
-            return Text(text, style="bold #dce6ff")
-        if lowered == "price":
-            return Text(text, style="bold #d4ddf2")
-        if lowered == "time":
-            return Text(text, style="#aab5d0")
-        if lowered == "change":
-            cleaned = text.strip()
-            if cleaned.startswith("-"):
-                return Text(text, style="bold #f17486")
-            if cleaned.startswith("+"):
-                return Text(text, style="bold #92d67e")
-            return Text(text, style="bold #c7d3ef")
-        if lowered == "bid":
-            return Text(text, style="bold #8cf3c0 on #123526")
-        if lowered == "ask":
-            return Text(text, style="bold #ffd5d9 on #3b1b25")
-        return text
-
-    def _record_update(self) -> None:
-        now = time.monotonic()
-        self._update_timestamps.append(now)
-        self._total_updates += 1
-        if self._stream_started_at is None:
-            self._stream_started_at = now
-        self._last_update_at = datetime.now()
-        self._refresh_status()
-
-    def _refresh_status(self) -> None:
-        self._refresh_interop_heartbeat()
-        now = time.monotonic()
-        cutoff = now - 1.0
-        while self._update_timestamps and self._update_timestamps[0] < cutoff:
-            self._update_timestamps.popleft()
-
-        rate = float(len(self._update_timestamps))
-        if self._stream_started_at is not None:
-            uptime_seconds = max(0, int(now - self._stream_started_at))
-            uptime = self._format_duration(uptime_seconds)
-        else:
-            uptime = "--:--:--"
-        last_update = self._last_update_at.strftime("%H:%M:%S") if self._last_update_at else "--:--:--"
-        status = Text()
-        if self._interop_is_running:
-            status.append("Interop: ● UP", style="bold #92d67e")
-        elif self._interop_exit_code is not None:
-            status.append(f"Interop: ● DOWN({self._interop_exit_code})", style="bold #f17486")
-        else:
-            status.append("Interop: ● DOWN", style="bold #8b90a1")
-        status.append(" | ")
-        status.append(f"Rows: {self._last_row_count} | Rate: {rate:.1f}/s | ")
-        status.append(f"Total Updates: {self._total_updates}", style="bold #79afe7")
-        status.append(f" | Uptime: {uptime} | ")
-        status.append(f"Last Update: {last_update}", style="bold #79afe7")
-        self.query_one("#live_status", Static).update(status)
-
-    def _refresh_interop_heartbeat(self) -> None:
-        is_running, exit_code = get_interop_status()
-        self._interop_is_running = is_running
-        self._interop_exit_code = exit_code
-
-    @staticmethod
-    def _format_duration(total_seconds: int) -> str:
-        hours = total_seconds // 3600
-        minutes = (total_seconds % 3600) // 60
-        seconds = total_seconds % 60
-        return f"{hours:02d}:{minutes:02d}:{seconds:02d}"
-
-    def _search_results(self) -> None:
-        raw = self.query_one("#results_search", Input).value.strip()
-        if ":" not in raw:
-            return
-        col_part, value_part = raw.split(":", 1)
-        target_col = col_part.strip()
-        target_value = value_part.strip()
-        if not target_col:
-            return
-
-        lookup = {name.lower(): idx for idx, name in enumerate(self._current_col_names)}
-        col_idx = lookup.get(target_col.lower())
-        if col_idx is None:
-            return
-
-        col_name = self._current_col_names[col_idx]
-        needle = target_value.lower()
-        for row_idx, row in enumerate(self._current_rows):
-            if not isinstance(row, dict):
-                continue
-            cell_value = self._stringify(row.get(col_name, ""))
-            if needle in cell_value.lower():
-                table = self.query_one("#results_table", DataTable)
-                table.move_cursor(row=row_idx, column=col_idx)
-                table.focus()
-                return
-
-    def _copy_selected_cell(self) -> None:
-        table = self.query_one("#results_table", DataTable)
-        if table.row_count == 0 or not self._current_col_names:
-            return
-        coordinate = table.cursor_coordinate
-        try:
-            cell = table.get_cell_at(coordinate)
-        except Exception:
-            return
-        if isinstance(cell, Text):
-            value = cell.plain
-        else:
-            value = self._stringify(cell)
-        self.copy_to_clipboard(value)
-
-    def _export_results_csv(self) -> None:
-        if not self._current_col_names:
-            return
-        timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
-        export_path = os.path.join(_here, f"DSQA_RESULTS_EXPORT_{timestamp}.csv")
-        with open(export_path, "w", newline="", encoding="utf-8") as csv_file:
-            writer = csv.writer(csv_file)
-            writer.writerow(self._current_col_names)
-            for row in self._current_rows:
-                if isinstance(row, dict):
-                    writer.writerow([self._stringify(row.get(col, "")) for col in self._current_col_names])
-
-    def _refresh_ops_tree(self) -> None:
-        tree = self.query_one("#ops_tree", Tree)
-        root = tree.root
-        root.remove_children()
-
-        if self._ops_catalog_error:
-            root.add(Text(self._ops_catalog_error, style="bold #f17486"))
-            root.expand()
-            return
-
-        grouped: dict[str, dict[str, dict[str, set[str]]]] = {}
-        for row in self._ops_catalog_rows:
-            if not isinstance(row, dict):
-                continue
-            row_lookup = {self._stringify(k).lower(): v for k, v in row.items()}
-            assembly_name = self._stringify(row_lookup.get("assembly_name", "")).strip() or "(unknown assembly)"
-            namespace = self._stringify(row_lookup.get("namespace", "")).strip() or "(global)"
-            op = self._stringify(row_lookup.get("op", "")).strip() or "(unknown op)"
-            constructor = self._stringify(row_lookup.get("constructor", "")).strip() or "(none)"
-            grouped.setdefault(assembly_name, {}).setdefault(namespace, {}).setdefault(op, set()).add(constructor)
-
-        if not grouped:
-            root.add(Text("No operator metadata available", style="#8ea0c6"))
-            root.expand()
-            return
-
-        for assembly_name in sorted(grouped.keys(), key=str.lower):
-            assembly_node = root.add(Text(assembly_name, style="bold #79afe7"))
-            for namespace in sorted(grouped[assembly_name].keys(), key=str.lower):
-                namespace_node = assembly_node.add(Text(namespace, style="#cfd7eb"))
-                for op in sorted(grouped[assembly_name][namespace].keys(), key=str.lower):
-                    op_node = namespace_node.add(
-                        Text(op, style="#b8c8e7"),
-                        data={"kind": "op", "op": op},
-                    )
-                    for constructor in sorted(grouped[assembly_name][namespace][op], key=str.lower):
-                        op_node.add(
-                            Text(constructor, style="#9eb0d4"),
-                            data={"kind": "constructor", "op": op, "constructor": constructor},
-                        )
-                    op_node.expand()
-                namespace_node.expand()
-            assembly_node.expand()
-        root.expand()
-
-    def _refresh_ops_tree_async(self) -> None:
-        if self._ops_catalog_loaded or self._ops_catalog_loading:
-            return
-        self._ensure_interop_started()
-        self._ops_catalog_loading = True
-        req_id = str(uuid.uuid4())
-
-        def _run() -> None:
-            try:
-                def _on_response(resp: DslResponse) -> None:
-                    self.call_from_thread(self._update_ops_catalog, resp)
-
-                get_dsl("OpsStream()", req_id, _on_response)
-            except Exception as exc:
-                error_resp = DslResponse(data_packet=None, req_id=req_id, error=str(exc))
-                self.call_from_thread(self._update_ops_catalog, error_resp)
-
-        threading.Thread(target=_run, daemon=True).start()
-
-    def _update_ops_catalog(self, response: DslResponse) -> None:
-        self._ops_catalog_loading = False
-        if response.error:
-            self._ops_catalog_rows = []
-            self._ops_catalog_error = self._stringify(response.error)
-            self._refresh_ops_tree()
-            return
-
-        if response.data_packet is None or not response.data_packet.state:
-            self._ops_catalog_rows = []
-            self._ops_catalog_error = "OpsStream() returned no data"
-            self._refresh_ops_tree()
-            return
-
-        data_packet = response.data_packet.state[0]
-        rows = data_packet.get("all", [])
-        if not isinstance(rows, list):
-            rows = []
-        normalized_rows: list[dict[str, Any]] = []
-        for row in rows:
-            if isinstance(row, dict):
-                normalized_rows.append(row)
-        self._ops_catalog_rows = normalized_rows
-        self._ops_catalog_error = None
-        self._ops_catalog_loaded = True
-        self._refresh_ops_tree()
-
-    def _toggle_stream_painting(self) -> None:
-        self._grid_updates_enabled = not self._grid_updates_enabled
-        self._set_stream_toggle_label()
-        self._set_pause_visuals()
-        if self._grid_updates_enabled and self._paused_latest_response is not None:
-            latest = self._paused_latest_response
-            self._paused_latest_response = None
-            self._render_response_internal(latest)
-
-    def _set_stream_toggle_label(self) -> None:
-        button = self.query_one("#stream_toggle_button", Button)
-        button.label = "⏸ Pause" if self._grid_updates_enabled else "▶ Play"
-
-    def _set_pause_visuals(self) -> None:
-        table = self.query_one("#results_table", DataTable)
-        panel = self.query_one("#results_panel", Vertical)
-        if self._grid_updates_enabled:
-            table.remove_class("paused")
-            panel.remove_class("paused")
-        else:
-            table.add_class("paused")
-            panel.add_class("paused")
-
-    def _load_last_query(self) -> str:
-        try:
-            with open(self.LAST_QUERY_PATH, "r", encoding="utf-8") as file:
-                text = file.read().strip()
-                return text if text else self.DEFAULT_QUERY
-        except FileNotFoundError:
-            return self.DEFAULT_QUERY
-        except OSError:
-            return self.DEFAULT_QUERY
-
-    def _save_last_query(self, query: str) -> None:
-        try:
-            with open(self.LAST_QUERY_PATH, "w", encoding="utf-8") as file:
-                file.write(query)
-        except OSError:
-            pass
-
-
-if __name__ == "__main__":
-    DSQALiveConsole().run()
@@ -1,31 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <OutputType>Exe</OutputType>
-    <TargetFramework>net8.0</TargetFramework>
-    <ImplicitUsings>enable</ImplicitUsings>
-    <Nullable>enable</Nullable>
-    <AssemblyName>BlueOrbDSLInteropServer</AssemblyName>
-    <RootNamespace>BlueOrbDSLInteropServer</RootNamespace>
-  </PropertyGroup>
-
-  <Choose>
-    <When Condition="'$(UseProjectRefs)' == 'true'">
-      <ItemGroup>
-        <ProjectReference Include="..\..\cs\Bts.Spark.Api\Bts.Spark.Api.csproj" />
-        <ProjectReference Include="..\DataStream\DataStream.csproj" />
-        <ProjectReference Include="..\PubSub\PubSub.csproj" />
-        <ProjectReference Include="..\BlueOrbOperatorStreams\BlueOrbOperatorStreams.csproj" />
-      </ItemGroup>
-    </When>
-    <Otherwise>
-      <ItemGroup>
-        <PackageReference Include="Bts.Spark.Api" Version="$(SparkVersion)" />
-        <PackageReference Include="DataStream" Version="$(SparkVersion)" />
-        <PackageReference Include="PubSub" Version="$(SparkVersion)" />
-        <PackageReference Include="BlueOrbOperatorStreams" Version="$(SparkVersion)" />
-      </ItemGroup>
-    </Otherwise>
-  </Choose>
-
-</Project>
@@ -1,122 +0,0 @@
-using System;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-using BCG;
-
-using bts.BlueOrb;
-
-using Bts.DataStream;
-
-using Bts.DataStreamCore;
-using Bts.DataStreamExpressions;
-using Bts.PubSub;
-
-using MathNet.Numerics.Statistics;
-
-
-namespace BlueOrbDSLInteropServer {
-   // BlueOrbDSLInteropServer reads DSL lines from stdin, validates them,
-   // and writes one DataPacket JSON line to stdout per input.
-   internal static class Program {
-      private const string ExitSignal = ":exit";
-      private static SyncQueue<DslRequest> _work_queue = new SyncQueue<DslRequest>();
-      private static JsonSerializerOptions response_json_options = new JsonSerializerOptions {
-         NumberHandling = JsonNumberHandling.AllowNamedFloatingPointLiterals
-      };
-      private static string _current_req_id;
-
-      // Request from Python
-      private sealed class DslRequest {
-         public string? dsl { get; set; }
-         public string? req_id { get; set; }
-      }
-
-      // Response envelope for Python: includes DataPacket, request id, and optional error.
-      private sealed class DslResponse {
-         public DataPacket? data_packet { get; set; }
-         public string? req_id { get; set; }
-         public string? error { get; set; }
-      }
-
-      private static void Main(string[] args) {
-         //System.Threading.Thread.Sleep(20000);
-         System.Threading.Thread thread = new Thread(_worker_loop);
-         thread.IsBackground = true;
-         thread.Start();
-         response_json_options.Converters.Add(new DataPacketJsonConverter {
-            IncludeCurrent = true,
-            UseObjectRows = true,
-         });
-         string? line;
-         while ((line = Console.ReadLine()) != null) {
-            line = line.Trim();
-            if (line.Length == 0) {
-               continue;
-            }
-            if (string.Equals(line, ExitSignal, StringComparison.OrdinalIgnoreCase)) {
-               break;
-            }
-
-            try {
-               DslRequest req = JsonSerializer.Deserialize<DslRequest>(line);
-               _work_queue.enqueue(req);
-            } catch (Exception ex) {
-               bts.Log.assert(false, ex.ToString());
-            }
-         }
-      }
-
-      private static void _worker_loop() {
-         Dictionary<string, ViewStream> req_map = new Dictionary<string, ViewStream>();
-         while (true) {
-            System.Threading.Thread.Sleep(100);
-            ViewStreamDatabase.instance.doWork();
-            var new_reqs = _work_queue.dequeue_all();
-            if (new_reqs == null || new_reqs.Count == 0) {
-               continue;
-            }
-            // ubsubscribing to previous stream(s)
-            foreach (var kv in req_map) {
-               kv.Value.onChange -= dp_obj => _on_dp(kv.Key, dp_obj);
-            }
-            foreach (var r in new_reqs) {
-               var req_id = string.IsNullOrWhiteSpace(r.req_id) ? Guid.NewGuid().ToString() : r.req_id;
-               _current_req_id = req_id;
-               try {
-                  DSLStream dsl_str = new DSLStream(r.dsl);
-                  req_map[req_id] = dsl_str;
-                  dsl_str.onChange += dp_obj => _on_dp(req_id, dp_obj);
-               } catch (Exception ex) {
-                  _write_error(req_id, ex.StackTrace);
-               }
-            }
-         }
-      }
-
-      private static void _on_dp(string req_id, object dp_obj) {
-         // eventhough we unsubscribe to all the other streams except the currrent one, 
-         // sometimes the onLastSub is not implemented and we still get updates, this masks them 
-         if (req_id != _current_req_id)
-            return;
-         DataPacket dp = dp_obj as DataPacket;
-         DslResponse response = new DslResponse() {
-            data_packet = dp,
-            req_id = req_id,
-            error = ""
-         };
-         var json = JsonSerializer.Serialize(response, response_json_options);
-         Console.WriteLine(json);
-      }
-
-      private static void _write_error(string req_id, string error) {
-         DslResponse response = new DslResponse() {
-            data_packet = null,
-            req_id = req_id,
-            error = error
-         };
-         var json = JsonSerializer.Serialize(response, response_json_options);
-         Console.WriteLine(json);
-      }
-   }
-}
@@ -1,514 +0,0 @@
-// namespace BlueOrb.Operators.Signal;
-
-// using BCG;
-
-// using bts;
-
-// using System;
-// using System.Collections.Generic;
-// using System.Globalization;
-// using System.Linq;
-
-// [DataStreamUserRespresentation("BarBuilderStream")]
-// public class BarBuilderStream : ViewStream
-// {
-//    enum BarType
-//    {
-//       TIME,
-//       TICK,
-//       VOLUME,
-//       DOLLAR,
-//    }
-
-//    enum PriceSource
-//    {
-//       trade_price,
-//       mid,
-//       bid,
-//       ask,
-//    }
-
-//    enum VolumeSource
-//    {
-//       trade_size,
-//       none,
-//    }
-
-//    enum SessionReset
-//    {
-//       NONE,
-//       DAY,
-//       RTH,
-//       ETH,
-//    }
-
-//    sealed class BarState
-//    {
-//       public string Contract = string.Empty;
-//       public DateTime StartTs;
-//       public DateTime EndTs;
-//       public double Open;
-//       public double High;
-//       public double Low;
-//       public double Close;
-//       public double Volume;
-//       public int TradeCount;
-//       public double SumPriceSize;
-//       public double SumSize;
-//       public double DollarNotional;
-//       public bool HasData;
-//       public DateTime SessionDay;
-//       public bool InitialSnapshotEmitted;
-//    }
-
-//    readonly ViewStream _priceStream;
-//    readonly BarType _barType;
-//    readonly int _barSize;
-//    readonly PriceSource _priceSource;
-//    readonly VolumeSource _volumeSource;
-//    readonly string _timestampCol;
-//    readonly bool _emitForming;
-//    readonly bool _emitInitialSnapshot;
-//    readonly SessionReset _sessionReset;
-
-//    readonly Dictionary<string, BarState> _stateByContract = new(StringComparer.Ordinal);
-//    readonly Dictionary<string, bool> _validCols = new(StringComparer.OrdinalIgnoreCase);
-//    bool _validated;
-//    int _nextId;
-//    readonly BlueTable _outTable;
-//    readonly IBlueTableSchema _outSchema;
-
-//    public BarBuilderStream(
-//       ViewStream price_stream,
-//       string bar_type,
-//       int bar_size,
-//       string price_source,
-//       string volume_source,
-//       string timestamp_col = "ts_event",
-//       int emit_forming_i = 0,
-//       string session_reset = "NONE",
-//       int emit_initial_snapshot_i = 0
-//    )
-//    {
-//       _priceStream = price_stream;
-//       _barType = ParseBarType(bar_type);
-//       _barSize = bar_size;
-//       _priceSource = ParsePriceSource(price_source);
-//       _volumeSource = ParseVolumeSource(volume_source);
-//       _timestampCol = timestamp_col;
-//       _emitForming = emit_forming_i == 1;
-//       _emitInitialSnapshot = emit_initial_snapshot_i == 1;
-//       _sessionReset = ParseSessionReset(session_reset);
-
-//       if (_barSize <= 0)
-//       {
-//          throw new ArgumentException("bar_size must be > 0");
-//       }
-
-//       _outSchema = BlueDataUtility.form_schema(
-//          "BarBuilder",
-//          Tuple.Create("id", TypeCode.Int32),
-//          Tuple.Create("ts_event", TypeCode.String),
-//          Tuple.Create("bar_start_ts", TypeCode.String),
-//          Tuple.Create("bar_end_ts", TypeCode.String),
-//          Tuple.Create("contract", TypeCode.String),
-//          Tuple.Create("open", TypeCode.Double),
-//          Tuple.Create("high", TypeCode.Double),
-//          Tuple.Create("low", TypeCode.Double),
-//          Tuple.Create("close", TypeCode.Double),
-//          Tuple.Create("volume", TypeCode.Double),
-//          Tuple.Create("trade_count", TypeCode.Int32),
-//          Tuple.Create("vwap", TypeCode.Double),
-//          Tuple.Create("is_forming", TypeCode.Boolean)
-//       );
-//       _outTable = new BlueTable(_outSchema);
-//    }
-
-//    protected override void myOnFirstSubscriber()
-//    {
-//       _priceStream.onChange += _on_price_change;
-//    }
-
-//    protected override void myOnLastSubscriber()
-//    {
-//       _priceStream.onChange -= _on_price_change;
-//    }
-
-//    void _on_price_change(object newValue)
-//    {
-//       var dp = newValue as IDataPacket;
-//       if (dp is null)
-//       {
-//          return;
-//       }
-//       if (!_validated)
-//       {
-//          ValidateInputSchema(dp.newRows.schema);
-//          _validated = true;
-//       }
-
-//       var emitted = new List<IBlueRow>();
-//       foreach (IBlueRow row in dp.addedRows)
-//       {
-//          ProcessEvent(row, emitted);
-//       }
-
-//       if (emitted.Count == 0)
-//       {
-//          return;
-//       }
-//       foreach (var r in emitted)
-//       {
-//          _outTable.addRow(r);
-//       }
-//       var outDp = BlueDataUtility.build_dp_inc(_outTable, myLastValue as IDataPacket);
-//       myFireEvent(outDp);
-//    }
-
-//    void ValidateInputSchema(IBlueTableSchema schema)
-//    {
-//       _validCols.Clear();
-//       foreach (var name in schema.columnNames)
-//       {
-//          _validCols[name] = true;
-//       }
-
-//       if (!_validCols.ContainsKey(_timestampCol))
-//       {
-//          throw new ArgumentException($"Missing required column: {_timestampCol}");
-//       }
-
-//       switch (_priceSource)
-//       {
-//          case PriceSource.trade_price:
-//             RequireCol("trade_price");
-//             break;
-//          case PriceSource.mid:
-//             RequireCol("bid_price");
-//             RequireCol("ask_price");
-//             break;
-//          case PriceSource.bid:
-//             RequireCol("bid_price");
-//             break;
-//          case PriceSource.ask:
-//             RequireCol("ask_price");
-//             break;
-//       }
-
-//       if (_barType is BarType.VOLUME or BarType.DOLLAR)
-//       {
-//          if (_volumeSource == VolumeSource.none || !_validCols.ContainsKey("trade_size"))
-//          {
-//             throw new ArgumentException("VOLUME/DOLLAR require executed trade volume; invalid for BBO-only streams.");
-//          }
-//       }
-//       else if (_volumeSource == VolumeSource.trade_size)
-//       {
-//          RequireCol("trade_size");
-//       }
-//    }
-
-//    void RequireCol(string name)
-//    {
-//       if (!_validCols.ContainsKey(name))
-//       {
-//          throw new ArgumentException($"Missing required column for selected source: {name}");
-//       }
-//    }
-
-//    void ProcessEvent(IBlueRow row, List<IBlueRow> emitted)
-//    {
-//       var ts = ParseTimestamp(row);
-//       var contract = ResolveContract(row);
-//       var price = ResolvePrice(row);
-//       var size = ResolveSize(row);
-//       var state = GetOrCreateState(contract);
-
-//       if (state.HasData && _sessionReset != SessionReset.NONE && ts.Date != state.SessionDay.Date)
-//       {
-//          emitted.Add(ToBarRow(state, ts_event: state.EndTs, isForming: false));
-//          state.HasData = false;
-//       }
-
-//       switch (_barType)
-//       {
-//          case BarType.TIME:
-//             ProcessTimeBar(state, ts, price, size, emitted);
-//             break;
-//          case BarType.TICK:
-//             ProcessThresholdBar(state, ts, price, size, emitted, state.TradeCount + 1 >= _barSize);
-//             break;
-//          case BarType.VOLUME:
-//             ProcessThresholdBar(state, ts, price, size, emitted, state.Volume + size >= _barSize);
-//             break;
-//          case BarType.DOLLAR:
-//             ProcessThresholdBar(state, ts, price, size, emitted, state.DollarNotional + (price * size) >= _barSize);
-//             break;
-//       }
-//    }
-
-//    void ProcessTimeBar(BarState state, DateTime ts, double price, double size, List<IBlueRow> emitted)
-//    {
-//       var bucketStart = AlignTimeBucket(ts, _barSize);
-//       var bucketEnd = bucketStart.AddSeconds(_barSize);
-
-//       if (!state.HasData)
-//       {
-//          StartBar(state, ts, bucketStart, bucketEnd, price, size);
-//          MaybeEmitInitialSnapshot(state, ts, emitted);
-//          if (_emitForming)
-//          {
-//             emitted.Add(ToBarRow(state, ts, isForming: true));
-//          }
-//          return;
-//       }
-
-//       if (bucketStart < state.StartTs)
-//       {
-//          Log.Gen.error(
-//             $"BarBuilderStream ignored out-of-order event. contract={state.Contract} ts={ToIso(ts)} " +
-//             $"current_bar_start={ToIso(state.StartTs)}");
-//          return;
-//       }
-
-//       if (bucketStart > state.StartTs)
-//       {
-//          emitted.Add(ToBarRow(state, state.EndTs, isForming: false));
-//          StartBar(state, ts, bucketStart, bucketEnd, price, size);
-//          if (_emitForming)
-//          {
-//             emitted.Add(ToBarRow(state, ts, isForming: true));
-//          }
-//          return;
-//       }
-
-//       Accumulate(state, price, size);
-//       state.EndTs = bucketEnd;
-//       if (_emitForming)
-//       {
-//          emitted.Add(ToBarRow(state, ts, isForming: true));
-//       }
-//    }
-
-//    void ProcessThresholdBar(
-//       BarState state,
-//       DateTime ts,
-//       double price,
-//       double size,
-//       List<IBlueRow> emitted,
-//       bool shouldClose
-//    )
-//    {
-//       if (!state.HasData)
-//       {
-//          StartBar(state, ts, ts, ts, price, size);
-//          MaybeEmitInitialSnapshot(state, ts, emitted);
-//       }
-//       else
-//       {
-//          Accumulate(state, price, size);
-//       }
-//       state.EndTs = ts;
-
-//       if (_emitForming)
-//       {
-//          emitted.Add(ToBarRow(state, ts, isForming: true));
-//       }
-//       if (shouldClose)
-//       {
-//          emitted.Add(ToBarRow(state, ts, isForming: false));
-//          state.HasData = false;
-//       }
-//    }
-
-//    static DateTime AlignTimeBucket(DateTime ts, int seconds)
-//    {
-//       var utc = ts.ToUniversalTime();
-//       long bucketTicks = TimeSpan.FromSeconds(seconds).Ticks;
-//       long aligned = (utc.Ticks / bucketTicks) * bucketTicks;
-//       return new DateTime(aligned, DateTimeKind.Utc);
-//    }
-
-//    void MaybeEmitInitialSnapshot(BarState state, DateTime ts, List<IBlueRow> emitted)
-//    {
-//       if (!_emitInitialSnapshot || state.InitialSnapshotEmitted)
-//       {
-//          return;
-//       }
-//       emitted.Add(ToBarRow(state, ts, isForming: false));
-//       state.InitialSnapshotEmitted = true;
-//    }
-
-//    void StartBar(
-//       BarState state,
-//       DateTime ts,
-//       DateTime barStart,
-//       DateTime barEnd,
-//       double price,
-//       double size
-//    )
-//    {
-//       state.StartTs = barStart;
-//       state.EndTs = barEnd;
-//       state.Open = price;
-//       state.High = price;
-//       state.Low = price;
-//       state.Close = price;
-//       state.Volume = 0;
-//       state.TradeCount = 0;
-//       state.SumPriceSize = 0;
-//       state.SumSize = 0;
-//       state.DollarNotional = 0;
-//       state.SessionDay = ts.Date;
-//       state.HasData = true;
-//       Accumulate(state, price, size);
-//    }
-
-//    static void Accumulate(BarState state, double price, double size)
-//    {
-//       state.High = Math.Max(state.High, price);
-//       state.Low = Math.Min(state.Low, price);
-//       state.Close = price;
-//       state.TradeCount++;
-//       if (size > 0)
-//       {
-//          state.Volume += size;
-//          state.SumSize += size;
-//          state.SumPriceSize += price * size;
-//          state.DollarNotional += price * size;
-//       }
-//    }
-
-//    IBlueRow ToBarRow(BarState state, DateTime ts_event, bool isForming)
-//    {
-//       double vwap = state.SumSize > 0 ? state.SumPriceSize / state.SumSize : state.Close;
-//       var row = new MutableBlueRow(_outSchema);
-//       row.setValue("id", _nextId++);
-//       row.setValue("ts_event", ToIso(ts_event));
-//       row.setValue("bar_start_ts", ToIso(state.StartTs));
-//       row.setValue("bar_end_ts", ToIso(state.EndTs));
-//       row.setValue("contract", state.Contract);
-//       row.setValue("open", state.Open);
-//       row.setValue("high", state.High);
-//       row.setValue("low", state.Low);
-//       row.setValue("close", state.Close);
-//       row.setValue("volume", _volumeSource == VolumeSource.none ? 0.0 : state.Volume);
-//       row.setValue("trade_count", state.TradeCount);
-//       row.setValue("vwap", vwap);
-//       row.setValue("is_forming", isForming);
-//       return row;
-//    }
-
-//    BarState GetOrCreateState(string contract)
-//    {
-//       if (_stateByContract.TryGetValue(contract, out var existing))
-//       {
-//          return existing;
-//       }
-//       var created = new BarState { Contract = contract };
-//       _stateByContract[contract] = created;
-//       return created;
-//    }
-
-//    DateTime ParseTimestamp(IBlueRow row)
-//    {
-//       object? raw = row[_timestampCol];
-//       if (raw is DateTime dt)
-//       {
-//          return dt;
-//       }
-//       if (raw is string s && DateTime.TryParse(s, null, DateTimeStyles.RoundtripKind, out dt))
-//       {
-//          return dt;
-//       }
-//       throw new ArgumentException($"Invalid timestamp value in column '{_timestampCol}'.");
-//    }
-
-//    string ResolveContract(IBlueRow row)
-//    {
-//       if (_validCols.ContainsKey("contract"))
-//       {
-//          return (row["contract"]?.ToString() ?? string.Empty).Trim();
-//       }
-//       if (_validCols.ContainsKey("symbol"))
-//       {
-//          return (row["symbol"]?.ToString() ?? string.Empty).Trim();
-//       }
-//       return string.Empty;
-//    }
-
-//    double ResolvePrice(IBlueRow row)
-//    {
-//       return _priceSource switch
-//       {
-//          PriceSource.trade_price => ToDouble(row["trade_price"], "trade_price"),
-//          PriceSource.mid => (ToDouble(row["bid_price"], "bid_price") + ToDouble(row["ask_price"], "ask_price")) / 2.0,
-//          PriceSource.bid => ToDouble(row["bid_price"], "bid_price"),
-//          PriceSource.ask => ToDouble(row["ask_price"], "ask_price"),
-//          _ => throw new ArgumentOutOfRangeException()
-//       };
-//    }
-
-//    double ResolveSize(IBlueRow row)
-//    {
-//       if (_volumeSource == VolumeSource.none)
-//       {
-//          return 0;
-//       }
-//       return ToDouble(row["trade_size"], "trade_size");
-//    }
-
-//    static double ToDouble(object? value, string colName)
-//    {
-//       var d = BlueDataUtility.GetDouble(value!);
-//       if (!d.HasValue)
-//       {
-//          throw new ArgumentException($"Column '{colName}' must be numeric.");
-//       }
-//       return d.Value;
-//    }
-
-//    static string ToIso(DateTime dt) =>
-//       dt.ToUniversalTime().ToString("O");
-
-//    static BarType ParseBarType(string value)
-//    {
-//       if (Enum.TryParse<BarType>(value, true, out var parsed))
-//       {
-//          return parsed;
-//       }
-//       throw new ArgumentException("bar_type must be one of: TIME | TICK | VOLUME | DOLLAR");
-//    }
-
-//    static PriceSource ParsePriceSource(string value)
-//    {
-//       if (Enum.TryParse<PriceSource>(value, true, out var parsed))
-//       {
-//          return parsed;
-//       }
-//       throw new ArgumentException("price_source must be one of: trade_price | mid | bid | ask");
-//    }
-
-//    static VolumeSource ParseVolumeSource(string value)
-//    {
-//       if (Enum.TryParse<VolumeSource>(value, true, out var parsed))
-//       {
-//          return parsed;
-//       }
-//       throw new ArgumentException("volume_source must be one of: trade_size | none");
-//    }
-
-//    static SessionReset ParseSessionReset(string value)
-//    {
-//       if (!Enum.TryParse<SessionReset>(value, true, out var parsed))
-//       {
-//          throw new ArgumentException("session_reset must be one of: NONE | DAY | RTH | ETH");
-//       }
-//       // TODO: differentiate RTH/ETH session boundaries; currently treated as DAY.
-//       if (parsed is SessionReset.RTH or SessionReset.ETH)
-//       {
-//          return SessionReset.DAY;
-//       }
-//       return parsed;
-//    }
-// }
@@ -1,41 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
-    <ImplicitUsings>enable</ImplicitUsings>
-    <Nullable>enable</Nullable>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <PackageReference Include="MathNet.Numerics" Version="5.0.0" />
-    <PackageReference Include="OpenAI" Version="2.0.0" />
-    <PackageReference Include="System.Linq.Async" Version="6.0.1" />
-  </ItemGroup>
-
-  <Choose>
-    <When Condition="'$(UseProjectRefs)' == 'true'">
-      <ItemGroup>
-        <ProjectReference Include="..\..\cs\Bts.Spark.Api\Bts.Spark.Api.csproj" />
-        <ProjectReference Include="..\DataStreamCore\DataStreamCore.csproj" />
-        <ProjectReference Include="..\DataStream\DataStream.csproj" />
-        <ProjectReference Include="..\PubSub\PubSub.csproj" />
-      </ItemGroup>
-    </When>
-    <Otherwise>
-      <ItemGroup>
-        <PackageReference Include="Bts.Spark.Api" Version="$(SparkVersion)" />
-        <PackageReference Include="DataStream" Version="$(SparkVersion)" />
-        <PackageReference Include="PubSub" Version="$(SparkVersion)" />
-      </ItemGroup>
-    </Otherwise>
-  </Choose>
-
-  <!-- <ItemGroup>
-    <RowType Include="RowTemplates\RefTypeRow.tt" SchemaJson="RowTemplates\PubSubHeartbeatSchema.json" TypeName="PubSubHeartbeatRow" TableName="PubSubHeartbeat" />
-    <RowType Include="RowTemplates\RefTypeRow.tt" SchemaJson="RowTemplates\PubSubRouteSchema.json" TypeName="PubSubRouteRow" TableName="PubSubRoute" />
-    <RowType Include="RowTemplates\RefTypeRow.tt" SchemaJson="RowTemplates\PubSubServerStateSchema.json" TypeName="PubSubServerStateRow" TableName="PubSubServerState" />
-    <RowType Include="RowTemplates\RefTypeRow.tt" SchemaJson="RowTemplates\PubSubServerTagStatsSchema.json" TypeName="PubSubServerTagStatsRow" TableName="PubSubServerTagStats" />
-    <RowType Include="RowTemplates\RefTypeRow.tt" SchemaJson="RowTemplates\TableMetadataSchema.json" TypeName="TableMetadataRow" TableName="TableMetadata" />
-  </ItemGroup> -->
-
-</Project>
@@ -1,294 +0,0 @@
-namespace BlueOrb.Internal
-{
-   using bts;
-   //using bts.api;
-   //using bts.spark;
-
-   using System;
-   using System.Diagnostics.CodeAnalysis;
-
-   public static class ContractUtils
-   {
-      public record FutureTradableContract(
-         string Symbol,
-         DateTime Expiration,
-         Exchange Exchange,
-         string? ContractText);
-
-      public class FutureSpreadContract
-      {
-         public List<Tuple<double, FutureTradableContract>> legs = new(2);
-         public string Symbol
-         {
-            get
-            {
-               return legs == null || legs.Count == 0 ? string.Empty : legs.ElementAt(0).Item2.Symbol;
-            }
-         }
-         public string? ContractText;
-      }
-
-      public record FutureContinousContract(string Symbol, Exchange Exchange);
-
-      // this is for all future conytracts belonging to a symbol
-      public record FutureWildcardContract(string Symbol, Exchange Exchange);
-
-      public class FutureContract
-      {
-         public FutureWildcardContract? wildcard_contract;
-         public FutureTradableContract? future_tradable_contract;
-         public FutureSpreadContract? spread_tradable_contract;
-         public FutureContinousContract? continous_constract;
-
-         public FutureContract(string txt)
-         {
-            wildcard_contract = parse_wildcard_contract(txt);
-            if (wildcard_contract != null)
-               return;
-            var fc = parse_future_contract(txt);
-            if (fc != null)
-            {
-               future_tradable_contract = fc;
-               return;
-            }
-            var sc = parse_future_spread_contract(txt);
-            if (sc != null)
-            {
-               spread_tradable_contract = sc;
-               return;
-            }
-            // this is not totally true, since ParseFutureSpreadContract does not
-            // parse ICS spreads
-            continous_constract = new(txt, Exchange.CME);
-         }
-
-         [MemberNotNullWhen(true, nameof(continous_constract))]
-         public bool is_continous_contract => continous_constract != null;
-
-         [MemberNotNullWhen(true, nameof(wildcard_contract))]
-         public bool is_wildcard_contract => wildcard_contract != null;
-
-         [MemberNotNullWhen(true, nameof(future_tradable_contract))]
-         public bool is_future_tradable_contract => future_tradable_contract != null;
-
-         [MemberNotNullWhen(true, nameof(spread_tradable_contract))]
-         public bool is_spread_tradable_contract => spread_tradable_contract != null;
-
-         public string symbol()
-         {
-            if (wildcard_contract != null)
-               return wildcard_contract.Symbol;
-            if (continous_constract != null)
-            {
-               return continous_constract.Symbol;
-            }
-            else if (future_tradable_contract != null)
-            {
-               return future_tradable_contract.Symbol;
-            }
-            else if (spread_tradable_contract != null)
-            {
-               return spread_tradable_contract.Symbol;
-            }
-            Log.assert(false);
-            return string.Empty;
-         }
-         public string? contract_text
-         {
-            get
-            {
-               if (future_tradable_contract != null)
-                  return future_tradable_contract.ContractText;
-               if (spread_tradable_contract != null)
-                  return spread_tradable_contract.ContractText;
-               return null;
-            }
-         }
-      }
-      #region Parsing
-      public static FutureWildcardContract? parse_wildcard_contract(string contract_txt, Exchange exchange = Exchange.CME)
-      {
-         if (contract_txt.EndsWith("*"))
-         {
-            contract_txt = contract_txt.Replace("*", string.Empty);
-            return new FutureWildcardContract(contract_txt, exchange);
-         }
-         return null;
-      }
-      public static FutureTradableContract? parse_future_contract(string contract_txt, Exchange exchange = Exchange.CME)
-      {
-         // Validate the future string length
-         if (!contract_txt.All(c => char.IsLetterOrDigit(c)))
-            return null;
-         if (contract_txt.Length < 4)
-         {
-            return null;
-         }
-
-         // Extract the symbol and the expiration month/year codes
-         string symbol = contract_txt.Substring(0, contract_txt.Length - 2);
-         char monthCode = contract_txt[contract_txt.Length - 2];
-         char yearCode = contract_txt[contract_txt.Length - 1];
-
-         // Map month code to month, return null if the month code is invalid
-         int month = monthCode switch
-         {
-            'F' => 1,  // January
-            'G' => 2,  // February
-            'H' => 3,  // March
-            'J' => 4,  // April
-            'K' => 5,  // May
-            'M' => 6,  // June
-            'N' => 7,  // July
-            'Q' => 8,  // August
-            'U' => 9,  // September
-            'V' => 10, // October
-            'X' => 11, // November
-            'Z' => 12, // December
-            _ => 0 // Return 0 for invalid month code
-         };
-
-         if (month == 0)
-         {
-            return null; // Invalid month code
-         }
-
-         // Calculate the year based on the current decade
-         int currentYear = DateTime.Now.Year;
-         int decadeStart = currentYear / 10 * 10;
-         int year = decadeStart + (yearCode - '0');
-
-         // If the year is in the past, assume the next decade
-         if (year < currentYear)
-         {
-            year += 10;
-         }
-
-         // Create the FutureContract instance and set its properties
-         DateTime expiration = new DateTime(year, month, 1);
-         return new(symbol, expiration, exchange, contract_txt);
-      }
-      // Method to parse a futures spread, e.g. "CLX4-CLZ4"
-      public static FutureSpreadContract? parse_future_spread_contract(string contract_txt, Exchange exchange = Exchange.CME)
-      {
-         // Split the string by '-' to handle each leg
-         var spreadParts = contract_txt.Split('-');
-         if (spreadParts.Length < 2)
-         {
-            return null; // Not a valid spread format
-         }
-
-         var spreadContract = new FutureSpreadContract { legs = new List<Tuple<double, FutureTradableContract>>() };
-
-         foreach (var part in spreadParts)
-         {
-            // Split each leg by '*', assuming the format is weight*future or just future
-            string[] legParts = part.Split('*');
-            double weight = 1.0;
-            string futurePart;
-
-            if (legParts.Length == 2)
-            {
-               if (!double.TryParse(legParts[0], out weight))
-               {
-                  return null; // Invalid weight, parsing failed
-               }
-               futurePart = legParts[1];
-            }
-            else if (legParts.Length == 1)
-            {
-               futurePart = legParts[0];
-            }
-            else
-            {
-               return null; // Invalid format, too many '*' parts
-            }
-
-            // Parse the future contract
-            var futureContract = parse_future_contract(futurePart, exchange);
-            if (futureContract == null)
-            {
-               return null; // Failed to parse the future part
-            }
-
-            // Add the leg to the spread contract
-            spreadContract.legs.Add(new Tuple<double, FutureTradableContract>(weight, futureContract));
-         }
-         return spreadContract;
-      }
-
-      // public static ContractType DetermineFutureOrSpread(string contract) {
-      //    if (contract.Contains("-")) {
-      //       return ContractType.FutureSpread;
-      //    } else {
-      //       return ContractType.Future;
-      //    }
-      // }
-      #endregion
-
-      public static ContractType get_type(string contract_txt)
-      {
-         var fc = parse_future_contract(contract_txt);
-         if (fc != null)
-         {
-            return ContractType.Future;
-         }
-         var sc = parse_future_spread_contract(contract_txt);
-         if (sc != null)
-         {
-            return ContractType.FutureSpread;
-         }
-         // tehre are some non calendar spreads we cant parse
-         //Log.assert(false);
-         return ContractType.FutureSpread;
-      }
-
-      public static ContractCategory get_category(string symbol)
-      {
-         var tp = get_symbol_category(symbol);
-         return tp.Item1;
-      }
-
-      public static Tuple<ContractCategory, string> get_symbol_category(string symbol)
-      {
-         var fc = parse_future_contract(symbol);
-         if (fc != null)
-         {
-            return Tuple.Create(ContractCategory.FutureString, fc.Symbol);
-         }
-         var sc = parse_future_spread_contract(symbol);
-         if (sc != null)
-         {
-            return Tuple.Create(ContractCategory.FutureString, sc.Symbol);
-         }
-         return Tuple.Create(ContractCategory.Symbol, symbol);
-      }
-
-
-
-      public enum ContractType
-      {
-         Spot,
-         Option,
-         Future,
-         FutureSpread,
-         OptionSpread
-      }
-      public enum ContractCategory
-      {
-         Symbol = 0,
-         FutureString,
-         SpreadString
-      }
-      public enum CallPut
-      {
-         Call,
-         Put
-      }
-      public enum Exchange
-      {
-         CME
-      }
-
-   }
-}
@@ -1,99 +0,0 @@
-namespace BlueOrb.Operators.Data {
-   using BCG;
-
-   using bts;
-
-   using Spark.Core.Diagnostics;
-
-   using BlueOrb.Internal;
-
-   using System;
-   using System.Collections.Generic;
-   using System.Linq;
-
-   [DataStreamUserRespresentation("ReplayFutureLiveBBOStream")]
-   public class ReplayFutureLiveBBOStream : ViewStream, BCG.Utilities.General.IWorker {
-      private class LastFireTime {
-         public DateTime last_fireitme_file = DateTime.MinValue;
-         public DateTime last_firetime_clock = DateTime.MinValue;
-      }
-      private class RowsWithPointer {
-         public List<IBlueRow>? rows;
-         public int pointer;
-      }
-
-
-      readonly ViewStreamDatabase? _vsd;
-      readonly ContractUtils.FutureContinousContract? _fcc;
-      private readonly LastFireTime _last_fire_time = new LastFireTime();
-      private RowsWithPointer _rows = new RowsWithPointer();
-
-      public ReplayFutureLiveBBOStream(string continous_contract) {
-         Func<string> iso_8601_now = () => {
-            DateTime utc_now = DateTime.UtcNow;
-            long ticks = utc_now.Ticks; // 1 tick = 100 ns
-            long nanoseconds = ticks % TimeSpan.TicksPerSecond * 100;
-            string formatted = utc_now.ToString("yyyy-MM-ddTHH:mm:ss");
-            formatted += $".{nanoseconds:D9}Z";
-            return formatted;
-         };
-         ViewStream rs = new ReplayFutureLiveBBOStream(continous_contract, true);
-         IBlueTableSchema schema_out = BlueDataUtility.form_schema("BBO",
-               Tuple.Create("id", TypeCode.Int32),
-               Tuple.Create("ts_event", TypeCode.String),
-               Tuple.Create("contract", TypeCode.String),
-               Tuple.Create("bid_price", TypeCode.Double),
-               Tuple.Create("bid_size", TypeCode.Int32),
-               Tuple.Create("ask_price", TypeCode.Double),
-               Tuple.Create("ask_size", TypeCode.Int32));
-         rs = new MapStream(rs, s => schema_out,
-            r =>
-            new BlueRow(schema_out, r["id"], /*r.get<string>("ts_event")*/iso_8601_now(), r.get<string>("symbol"),
-            r.get<double>("bid_px_00"), r.get<int>("bid_sz_00"),
-            r.get<double>("ask_px_00"), r.get<int>("ask_sz_00")));
-         mySetRealSource(rs);
-      }
-
-      private ReplayFutureLiveBBOStream(string continous_contract, bool noop)
-         : this(ViewStreamDatabase.instance, new ContractUtils.FutureContract(continous_contract)) { }
-
-      public ReplayFutureLiveBBOStream(ViewStreamDatabase vsd, ContractUtils.FutureContract fc) {
-         var fcc = fc.continous_constract;
-         Log.assert(fcc != null);
-         _vsd = vsd;
-         _fcc = fcc;
-      }
-
-      protected override void myOnFirstSubscriber() {
-         Log.notnull(_fcc);
-         var file_path = Path.Combine(SQLiteHelper.location, $"mbp1_{_fcc.Symbol}_small.csv".ToLower());
-         var rows = BCG.CSVReaderStream.LoadFile(file_path);
-         _rows.rows = new(rows.Count);
-         _rows.rows.AddRange(rows.OfType<IBlueRow>().OrderBy(r => r.get<string>("ts_event")));
-         _rows.pointer = 0;
-         ExceptionAssert.NotNull(_vsd).addWorker(this);
-      }
-
-      protected override void myOnLastSubscriber() {
-         ExceptionAssert.NotNull(_vsd).removeWorker(this);
-      }
-
-      public void doWork() {
-         var rows = ExceptionAssert.NotNull(_rows.rows);
-         IBlueRow cand_row = rows[_rows.pointer];
-         string cand_ts_event = cand_row.get<string>("ts_event");
-         DateTime cand_ts_event_dt = DateTime.Parse(cand_ts_event, null, System.Globalization.DateTimeStyles.RoundtripKind);
-         TimeSpan cand_ts_span_file = cand_ts_event_dt - _last_fire_time.last_fireitme_file;
-         TimeSpan ts_clock = DateTime.Now - _last_fire_time.last_firetime_clock;
-         if (ts_clock >= cand_ts_span_file) {
-            _rows.pointer++;
-            _last_fire_time.last_firetime_clock = DateTime.Now;
-            _last_fire_time.last_fireitme_file = cand_ts_event_dt;
-            BlueTable bt_out = new BlueTable(cand_row.schema);
-            bt_out.addRow(cand_row);
-            var dp_out = BlueDataUtility.build_dp(bt_out, myLastValue as IDataPacket);
-            myFireEvent(dp_out);
-         }
-      }
-   }
-}
@@ -1,111 +0,0 @@
-namespace Blueorb.Operators.Data
-{
-   using BCG;
-
-   using Spark.Core.Diagnostics;
-   using BlueOrb.Internal;
-   using bts;
-   using BlueOrb.Operators.Core;
-
-   using System;
-   using System.Collections.Generic;
-   using System.Linq;
-
-   [DataStreamUserRespresentation("ReplayFutureLiveTradeStream")]
-   public class ReplayFutureLiveTradeStream : ViewStream, BCG.Utilities.General.IWorker
-   {
-      private class LastFireTime
-      {
-         public DateTime last_fireitme_file = DateTime.MinValue;
-         public DateTime last_firetime_clock = DateTime.MinValue;
-      }
-      private class RowsWithPointer
-      {
-         public List<IBlueRow>? rows;
-         public int pointer;
-      }
-
-
-      readonly ViewStreamDatabase? _vsd;
-      readonly ContractUtils.FutureContinousContract? _fcc;
-      private readonly LastFireTime _last_fire_time = new LastFireTime();
-      readonly RowsWithPointer _rows = new();
-
-      public ReplayFutureLiveTradeStream(string continous_contract)
-      {
-         Func<string> iso_8601_now = () =>
-         {
-            DateTime utc_now = DateTime.UtcNow;
-            long ticks = utc_now.Ticks; // 1 tick = 100 ns
-            long nanoseconds = ticks % TimeSpan.TicksPerSecond * 100;
-            string formatted = utc_now.ToString("yyyy-MM-ddTHH:mm:ss");
-            formatted += $".{nanoseconds:D9}Z";
-            return formatted;
-         };
-         ViewStream rs = new ReplayFutureLiveTradeStream(continous_contract, true);
-         IBlueTableSchema schema_out = BlueDataUtility.form_schema("BBO",
-               Tuple.Create("id", TypeCode.Int32),
-               Tuple.Create("ts_event", TypeCode.String),
-               Tuple.Create("contract", TypeCode.String),
-               Tuple.Create("trade_size", TypeCode.Double),
-               Tuple.Create("trade_price", TypeCode.Int32),
-               Tuple.Create("aggressor_side", TypeCode.String));
-         rs = new MapStream(rs, s => schema_out,
-            r =>
-            new BlueRow(schema_out, r["id"], /*r.get<string>("ts_event")*/iso_8601_now(), r.get<string>("symbol"),
-            r.get<double>("size"), r.get<double>("price"),
-            r.get<string>("side").StartsWith("B") ? "BUY" : (r.get<string>("side").StartsWith("A") ? "SELL" : "NONE")));
-         rs = new TimeSeriesStream(rs);
-         mySetRealSource(rs);
-      }
-
-      private ReplayFutureLiveTradeStream(string continous_contract, bool noop)
-         : this(ViewStreamDatabase.instance, new ContractUtils.FutureContract(continous_contract)) { }
-
-      public ReplayFutureLiveTradeStream(ViewStreamDatabase vsd, ContractUtils.FutureContract fc)
-      {
-         var fcc = fc.continous_constract;
-         Log.assert(fcc != null);
-         _vsd = vsd;
-         _fcc = fcc;
-      }
-
-      protected override void myOnFirstSubscriber()
-      {
-         Log.notnull(_vsd);
-         Log.notnull(_fcc);
-         var file_path = Path.Combine(SQLiteHelper.location, $"trades_{_fcc.Symbol}.csv");
-         var csv_rd = new BlueOrb.Operators.Core.CSVReaderStream(file_path, false);
-         var rows = BCG.CSVReaderStream.LoadFile(file_path);
-         _rows.rows = new(rows.Count);
-         _rows.rows.AddRange(rows.OfType<IBlueRow>().OrderBy(r => r.get<string>("ts_event")));
-         _rows.pointer = 0;
-         ExceptionAssert.NotNull(_vsd).addWorker(this);
-      }
-
-      protected override void myOnLastSubscriber()
-      {
-         ExceptionAssert.NotNull(_vsd).removeWorker(this);
-      }
-
-      public void doWork()
-      {
-         var rows = ExceptionAssert.NotNull(_rows.rows);
-         IBlueRow cand_row = rows[_rows.pointer];
-         string cand_ts_event = cand_row.get<string>("ts_event");
-         DateTime cand_ts_event_dt = DateTime.Parse(cand_ts_event, null, System.Globalization.DateTimeStyles.RoundtripKind);
-         TimeSpan cand_ts_span_file = cand_ts_event_dt - _last_fire_time.last_fireitme_file;
-         TimeSpan ts_clock = DateTime.Now - _last_fire_time.last_firetime_clock;
-         if (ts_clock >= cand_ts_span_file)
-         {
-            _rows.pointer++;
-            _last_fire_time.last_firetime_clock = DateTime.Now;
-            _last_fire_time.last_fireitme_file = cand_ts_event_dt;
-            BlueTable bt_out = new BlueTable(cand_row.schema);
-            bt_out.addRow(cand_row);
-            var dp_out = BlueDataUtility.build_dp(bt_out, myLastValue as IDataPacket);
-            myFireEvent(dp_out);
-         }
-      }
-   }
-}
@@ -1,144 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Data;
-using System.Data.SQLite;
-using System.IO;
-using System.Runtime.InteropServices;
-
-namespace BlueOrb.Internal
-{
-
-   public static class SQLiteHelper
-   {
-      public static string location = RuntimeInformation.IsOSPlatform(OSPlatform.Windows)
-         ? "C:\\BlueOrb_Data\\"
-         : Path.Combine(Environment.GetEnvironmentVariable("HOME") ?? string.Empty, "BlueOrb_Data");
-      public static string db_name = "stream_data.db";
-
-      public static DataTable execute_select_query(string connection_string, string query)
-      {
-         // Create a new DataTable to store the results
-         DataTable dataTable = new DataTable();
-
-         // Create and open a SQLite connection using the provided connection string
-         using (SQLiteConnection connection = new SQLiteConnection(connection_string))
-         {
-            try
-            {
-               connection.Open();
-
-               // Create a SQLite command with the provided query
-               using (SQLiteCommand command = new SQLiteCommand(query, connection))
-               {
-                  // Use SQLiteDataAdapter to fill the DataTable
-                  using (SQLiteDataAdapter adapter = new SQLiteDataAdapter(command))
-                  {
-                     adapter.Fill(dataTable);
-                  }
-               }
-            }
-            catch (Exception ex)
-            {
-               Console.WriteLine("An error occurred: " + ex.Message);
-            }
-         }
-         // Return the populated DataTable
-         return dataTable;
-      }
-
-      public static List<Dictionary<string, object>> ExecuteBulkRead(string connectionString, string query)
-      {
-         var result = new List<Dictionary<string, object>>();
-
-         using (var connection = new SQLiteConnection(connectionString))
-         {
-            connection.Open();
-
-            // Begin a transaction to optimize read speed
-            using (var transaction = connection.BeginTransaction())
-            using (var command = new SQLiteCommand(query, connection, transaction))
-            using (var reader = command.ExecuteReader())
-            {
-               while (reader.Read())
-               {
-                  var row = new Dictionary<string, object>();
-
-                  for (int i = 0; i < reader.FieldCount; i++)
-                  {
-                     string columnName = reader.GetName(i);
-                     object columnValue = reader.IsDBNull(i) ? null : reader.GetValue(i);
-                     row[columnName] = columnValue;
-                  }
-
-                  result.Add(row);
-               }
-
-               // Commit the transaction
-               transaction.Commit();
-            }
-         }
-
-         return result;
-      }
-
-      public static List<Dictionary<string, object>> get_table(string connectionString, string query)
-      {
-         var result = new List<Dictionary<string, object>>();
-
-         using (var connection = new SQLiteConnection(connectionString))
-         {
-            try
-            {
-               connection.Open();
-
-               using (var command = new SQLiteCommand(query, connection))
-               using (var reader = command.ExecuteReader())
-               {
-                  while (reader.Read())
-                  {
-                     var row = new Dictionary<string, object>();
-
-                     for (int i = 0; i < reader.FieldCount; i++)
-                     {
-                        string columnName = reader.GetName(i);
-                        object columnValue = reader.IsDBNull(i) ? null : reader.GetValue(i);
-                        row[columnName] = columnValue;
-                     }
-
-                     result.Add(row);
-                  }
-               }
-            }
-            catch (Exception ex)
-            {
-               Console.WriteLine("An error occurred: " + ex.Message);
-            }
-         }
-         return result;
-      }
-
-      public static IEnumerable<Dictionary<string, object>> get_table_2(string connectionString, string query)
-      {
-         using (var connection = new SQLiteConnection(connectionString))
-         {
-            connection.Open();
-            using (var command = new SQLiteCommand(query, connection))
-            using (var reader = command.ExecuteReader())
-            {
-               while (reader.Read())
-               {
-                  var row = new Dictionary<string, object>();
-                  for (int i = 0; i < reader.FieldCount; i++)
-                  {
-                     string columnName = reader.GetName(i);
-                     object columnValue = reader.IsDBNull(i) ? null : reader.GetValue(i);
-                     row[columnName] = columnValue;
-                  }
-                  yield return row;
-               }
-            }
-         }
-      }
-   }
-}
-
@@ -1,43 +0,0 @@
-namespace BlueOrb.Internal
-{
-   using bts;
-   using System;
-   using BCG;
-   using System.Collections.Generic;
-   using Bts.DataStreamExpressions;
-   using System.Xml;
-
-   // All this does is take in a dsl expression, parse it and fire the data that come out of running it.
-   // So for example, if an expresison is passed 
-   [DataStreamUserRespresentation("dsl")]
-   public class DSLStream : ViewStream
-   {
-      private readonly string _dsl;
-      public DSLStream(string dsl)
-      {
-         Log.Gen.info($"DSLStream.cons dsl: {dsl}");
-         // Remove all colons
-         string sanitizedDsl = dsl.Replace(":", "COLON");
-         _dsl = dsl;
-         ViewStream rs = build_stream(dsl) ?? new LiteralStream("error", $"msg:invalid dsl");
-         mySetRealSource(rs);
-      }
-
-      static ViewStream? build_stream(string stream_expression)
-      {
-         try
-         {
-            var exp = DataStreamExpressionsInterpreter.Evaluate(stream_expression);
-            var rv = exp.getView(new Dictionary<string, StatementExpression>(0));
-            return rv;
-
-         }
-         catch (Exception ex)
-         {
-            //send to blueorb
-            Log.Gen.error($"Could not build stream: {stream_expression} ex: {ex}");
-            return null;
-         }
-      }
-   }
-}
@@ -1,103 +0,0 @@
-using System;
-
-using BCG.Utilities.General;
-using BCG;
-using bts;
-
-namespace BlueOrb.Internal
-{
-   [DataStreamUserRespresentation("MillisecondStream")]
-   public class MillisecondStream : ViewStream, IWorker
-   {
-      private DateTime _last_fire_time = DateTime.MinValue;
-      private readonly TimeSpan _period;
-      private readonly int _size;
-      private readonly ViewStreamDatabase _vsd;
-      private IBlueTableSchema _schema;
-      private bts.CircularBufferTable _table;
-
-      public MillisecondStream(int interval_msecs, int size)
-      : this(ViewStreamDatabase.instance, interval_msecs, size)
-      {
-      }
-
-      public MillisecondStream(ViewStreamDatabase vsd, int interval_msecs, int size)
-      {
-         _vsd = vsd;
-         _period = TimeSpan.FromMilliseconds(interval_msecs);
-         _size = size;
-         _schema = BlueDataUtility.form_schema("Milliseconds",
-               Tuple.Create("id", TypeCode.Int32),
-               Tuple.Create("time", TypeCode.DateTime),
-               Tuple.Create("display_time", TypeCode.String));
-         _table = new CircularBufferTable(_schema, _size);
-      }
-
-      protected override void myOnFirstSubscriber()
-      {
-         _vsd.addWorker(this);
-      }
-
-      protected override void myOnLastSubscriber()
-      {
-         _vsd.removeWorker(this);
-      }
-
-      private int _id = 0;
-      public void doWork()
-      {
-         if (DateTime.Now - _last_fire_time >= _period)
-         {
-            _last_fire_time = DateTime.Now;
-            IBlueRow nr = new BlueRow(_schema, _id++, _last_fire_time,
-            _last_fire_time.ToString("yyyy-MM-dd HH:mm:ss.fff"));
-            _table.add_row(nr);
-            var dp = BlueDataUtility.build_dp_inc(_table, myLastValue as DataPacket);
-            myFireEvent(dp);
-         }
-      }
-   }
-   internal class MSecondStream : TimeUnitStream
-   {
-      public MSecondStream(int intervalInms, int size)
-         : base(DateTime.Now, new TimeSpan(0, 0, 0, 0, intervalInms), size, ViewStreamDatabase.instance) { }
-
-      protected override DateTime myRoundTime(DateTime dt) { return dt; }
-   }
-
-   internal class DisplayableMillisecondStream : ViewStream, IStreamMapper
-   {
-      private IBlueTableSchema mySchema = new BlueTableSchema("ms",
-                                                               new ColumnInfo("id", 0, typeof(int)),
-                                                               new ColumnInfo("time", 1, typeof(string)));
-      public DisplayableMillisecondStream(int intervalInMs, int sz)
-      {
-         mySetRealSource(new MapStream(new MSecondStream(intervalInMs, sz), this));
-      }
-      #region IStreamMapper Members
-
-      public IBlueTableSchema getOutputSchema(IBlueTableSchema inputSchema)
-      {
-         return mySchema;
-      }
-
-      #endregion
-
-      #region IDynamicStreamMapper Members
-
-      public IBlueRow map(IBlueRow row)
-      {
-         DateTime time = row.get_datetime("time");
-         var time_txt = time.ToString("yyyy-MM-dd HH:mm:ss.fff");
-         return new BlueRow(mySchema, row["id"], time_txt);
-      }
-
-      #endregion
-
-      private string myToString(DateTime dt)
-      {
-         string sep = ":";
-         return dt.Hour + sep + dt.Minute + sep + dt.Second + sep + dt.Millisecond;
-      }
-   }
-}
@@ -1,348 +0,0 @@
-namespace BlueOrb.Operators.Signal
-{
-   using System;
-   using System.Collections.Concurrent;
-   using System.IO.MemoryMappedFiles;
-   using BCG;
-   using System.Text.Json.Serialization;
-   using System.Text.Json;
-   using System.Data;
-
-
-   public enum BarType
-   {
-      TIME,
-      TICK,
-      VOLUME,
-      DOLLAR,
-   }
-
-   public class BarBuilderSchemaInfo
-   {
-      [JsonPropertyName("price_col")]
-      public string price_col { get; set; } = "trade_price";
-
-      [JsonPropertyName("volume_col")]
-      public string volume_col { get; set; } = "trade_size";
-
-      [JsonPropertyName("timestamp_col")]
-      public string timestamp_col { get; set; } = "ts_event";
-   }
-
-
-   public class SingleBar : IBlueRow
-   {
-      private BarBuilderStream _parent_str;
-      private IBlueTableSchema _schema;
-      private MutableBlueRow _row;
-      public SingleBar(BarBuilderStream parent_str)
-      {
-         _parent_str = parent_str;
-         _schema = BlueDataUtility.form_schema(
-            "bar_builder_single_bar",
-            Tuple.Create("id", TypeCode.Int32),
-            Tuple.Create("ts_event", TypeCode.DateTime),
-            Tuple.Create("bar_start_ts", TypeCode.DateTime),
-            Tuple.Create("bar_end_ts", TypeCode.DateTime),
-            Tuple.Create("open", TypeCode.Double),
-            Tuple.Create("high", TypeCode.Double),
-            Tuple.Create("low", TypeCode.Double),
-            Tuple.Create("close", TypeCode.Double),
-            Tuple.Create("volume", TypeCode.Double),
-            Tuple.Create("notional", TypeCode.Double),
-            Tuple.Create("trade_count", TypeCode.Int32),
-            Tuple.Create("n_events", TypeCode.Int32),
-            Tuple.Create("vwap", TypeCode.Double),
-            Tuple.Create("is_active", TypeCode.Boolean)
-         );
-         _row = new MutableBlueRow(_schema);
-      }
-
-      public IBlueTableSchema schema => _row.schema;
-
-      public object this[int index] => _row[index];
-
-      public object this[string col_name] => _row[col_name];
-
-
-      public IBlueRow add_event(IBlueRow r)
-      {
-         // initiaizes _row
-         void reset_new_bar()
-         {
-            _row = new MutableBlueRow(_schema);
-            _row.setValue("id", _parent_str.get_new_id());
-            _row.setValue("volume", 0.0);
-            _row.setValue("notional", 0.0);
-            _row.setValue("trade_count", 0);
-            _row.setValue("n_events", 0);
-            _row.setValue("is_active", true);
-         }
-
-         void absorb_into_row(IBlueRow input_row)
-         {
-            var ts = input_row.get_datetime(_parent_str._schema_info.timestamp_col, DateTime.UtcNow).ToUniversalTime();
-            var price = input_row.get<double>(_parent_str._schema_info.price_col, 0.0);
-            var volume = input_row.get<double>(_parent_str._schema_info.volume_col, 0.0);
-            var notional = price * volume;
-
-            if (_row.is_null("bar_start_ts"))
-            {
-               DateTime bar_start_ts;
-               DateTime bar_end_ts;
-               if (_parent_str._bar_type == BarType.TIME)
-               {
-                  var bucket_ticks = (long)(Math.Max(1.0, _parent_str._bar_size) * TimeSpan.TicksPerSecond);
-                  var start_ticks = (ts.Ticks / bucket_ticks) * bucket_ticks;
-                  bar_start_ts = new DateTime(start_ticks, DateTimeKind.Utc);
-                  bar_end_ts = bar_start_ts.AddTicks(bucket_ticks);
-               }
-               else
-               {
-                  bar_start_ts = ts;
-                  bar_end_ts = ts;
-               }
-               _row.setValue("bar_start_ts", bar_start_ts);
-               _row.setValue("bar_end_ts", bar_end_ts);
-               _row.setValue("open", price);
-               _row.setValue("high", price);
-               _row.setValue("low", price);
-            }
-            else
-            {
-               var high = _row.get<double>("high", price);
-               var low = _row.get<double>("low", price);
-               _row.setValue("high", Math.Max(high, price));
-               _row.setValue("low", Math.Min(low, price));
-            }
-
-            _row.setValue("ts_event", ts);
-            _row.setValue("close", price);
-            _row.setValue("volume", _row.get<double>("volume", 0.0) + volume);
-            _row.setValue("notional", _row.get<double>("notional", 0.0) + notional);
-            _row.setValue("trade_count", _row.get<int>("trade_count", 0) + 1);
-            _row.setValue("n_events", _row.get<int>("n_events", 0) + 1);
-            var running_volume = _row.get<double>("volume", 0.0);
-            var running_notional = _row.get<double>("notional", 0.0);
-            _row.setValue("vwap", running_volume > 0.0 ? running_notional / running_volume : price);
-         }
-
-         bool is_closed()
-         {
-            bool closed;
-            if (_parent_str._bar_type == BarType.TIME)
-            {
-               var ts = _row.get_datetime("ts_event", DateTime.MinValue);
-               var bar_end_ts = _row.get_datetime("bar_end_ts", DateTime.MaxValue);
-               closed = ts >= bar_end_ts;
-            }
-            else if (_parent_str._bar_type == BarType.TICK)
-            {
-               closed = _row.get<int>("n_events", 0) >= _parent_str._bar_size;
-            }
-            else if (_parent_str._bar_type == BarType.VOLUME)
-            {
-               closed = _row.get<double>("volume", 0.0) >= _parent_str._bar_size;
-            }
-            else
-            {
-               closed = _row.get<double>("notional", 0.0) >= _parent_str._bar_size;
-            }
-            _row.setValue("is_active", !closed);
-            return closed;
-         }
-
-         if (_row == null)
-         {
-            reset_new_bar();
-         }
-         absorb_into_row(r);
-         if (is_closed())
-         {
-            IBlueRow closed_row = new BlueRow(_row);
-            reset_new_bar();
-            return closed_row;
-         }
-         return null;
-      }
-
-   }
-
-
-   public class BarState : IBlueRowCollection
-   {
-      private SingleBar _curr_row;
-      private BlueTable _state;
-
-      public BarState(BarBuilderStream parent_str)
-      {
-         _curr_row = new SingleBar(parent_str);
-         _state = new BlueTable(_curr_row.schema);
-      }
-
-      public bool add_event(IBlueRow r)
-      {
-         var closed_bar = _curr_row.add_event(r);
-         if (closed_bar is not null)
-         {
-            // curr bar is closed, only then its added
-            // when bars are evolving we dont add it
-            _state.addRow(closed_bar);
-            return true;
-         }
-         return false;
-      }
-
-      public IBlueRow this[int id] => _state[id];
-
-      public IBlueTableSchema schema => _state.schema;
-
-      public bool containsID(int id) => _state.containsID(id);
-
-      public int Count => _state.Count;
-
-      public System.Collections.IEnumerator GetEnumerator() => _state.GetEnumerator();
-   }
-
-   [DataStreamUserRespresentation("BarBuilderStream")]
-   public class BarBuilderStream : ViewStream
-   {
-      readonly ViewStream _price_stream;
-      internal readonly BarType _bar_type;
-      internal readonly double _bar_size;
-      internal readonly bool _show_open_bars;
-      internal readonly BarBuilderSchemaInfo _schema_info;
-      private BarState _state;
-
-      public BarBuilderStream(ViewStream price_stream,
-                               BarType bar_type,
-                               double bar_size,
-                               bool show_open_bars,
-                               BarBuilderSchemaInfo schema_info)
-      {
-         _price_stream = price_stream;
-         _bar_type = bar_type;
-         _bar_size = bar_size;
-         _show_open_bars = show_open_bars;
-         _schema_info = schema_info;
-         _state = new BarState(this);
-      }
-
-      int _id = 0;
-      internal int get_new_id()
-      {
-         return _id++;
-      }
-
-      public BarBuilderStream(ViewStream price_stream,
-                               string bar_type,
-                               double bar_size,
-                               string schema_info_json)
-                               :
-                               this(price_stream,
-                                     Enum.Parse<BarType>(bar_type),
-                                     bar_size,
-                                     true,
-                                    _parse_and_validate_schema_info_json(schema_info_json))
-      {
-      }
-
-      public BarBuilderStream(ViewStream price_stream,
-                               string bar_type,
-                               double bar_size,
-                               string price_col,
-                               string volume_col,
-                               string timestamp_col)
-                               :
-                               this(price_stream,
-                                     Enum.Parse<BarType>(bar_type),
-                                     bar_size,
-                                     true,
-                                     _create_and_validate_schema_info(price_col, volume_col, timestamp_col))
-      {
-      }
-
-      protected override void myOnFirstSubscriber()
-      {
-         _price_stream.onChange += _on_price_stream_change;
-      }
-
-      protected override void myOnLastSubscriber()
-      {
-         _price_stream.onChange -= _on_price_stream_change;
-      }
-
-      void _on_price_stream_change(object dp_obj)
-      {
-         DataPacket dp = dp_obj as DataPacket;
-         var sz_0 = _state.Count;
-         foreach (IBlueRow r in dp.addedRows)
-         {
-            _state.add_event(r);
-         }
-         if (_state.Count != sz_0)
-         // we will check for _show_open_bars here 
-         {
-            var dp_out = BlueDataUtility.build_dp_inc(_state, myLastValue as DataPacket, false);
-            myFireEvent(dp_out);
-         }
-      }
-
-
-      static BarBuilderSchemaInfo _parse_and_validate_schema_info_json(string schema_info_json)
-      {
-         if (string.IsNullOrWhiteSpace(schema_info_json))
-         {
-            throw new ArgumentException("schema_info_json cannot be null or empty.", nameof(schema_info_json));
-         }
-
-         var schema_info = JsonSerializer.Deserialize<BarBuilderSchemaInfo>(schema_info_json);
-         _validate_schema_info(schema_info);
-         return schema_info!;
-      }
-
-      static BarBuilderSchemaInfo _create_and_validate_schema_info(
-         string price_col,
-         string volume_col,
-         string timestamp_col)
-      {
-         var schema_info = new BarBuilderSchemaInfo
-         {
-            price_col = price_col,
-            volume_col = volume_col,
-            timestamp_col = timestamp_col,
-         };
-         _validate_schema_info(schema_info);
-         return schema_info;
-      }
-
-      static void _validate_schema_info(BarBuilderSchemaInfo? schema_info)
-      {
-         if (schema_info is null)
-         {
-            throw new ArgumentException("schema_info_json did not deserialize into BarBuilderSchemaInfo.");
-         }
-
-         if (string.IsNullOrWhiteSpace(schema_info.price_col))
-         {
-            throw new ArgumentException("BarBuilderSchemaInfo.PriceCol cannot be null or empty.");
-         }
-         if (string.IsNullOrWhiteSpace(schema_info.volume_col))
-         {
-            throw new ArgumentException("BarBuilderSchemaInfo.VolumeCol cannot be null or empty.");
-         }
-         if (string.IsNullOrWhiteSpace(schema_info.timestamp_col))
-         {
-            throw new ArgumentException("BarBuilderSchemaInfo.TimestampCol cannot be null or empty.");
-         }
-
-         if (schema_info.price_col.Equals(schema_info.volume_col, StringComparison.OrdinalIgnoreCase) ||
-             schema_info.price_col.Equals(schema_info.timestamp_col, StringComparison.OrdinalIgnoreCase) ||
-             schema_info.volume_col.Equals(schema_info.timestamp_col, StringComparison.OrdinalIgnoreCase))
-         {
-            throw new ArgumentException("BarBuilderSchemaInfo columns must be distinct.");
-         }
-      }
-   }
-
-}
@@ -1,192 +1,192 @@
-using System;
-using System.Collections;
-using System.Collections.Generic;
-using System.Collections.Concurrent;
-using System.Reflection;
-using Microsoft.Win32;
-
-namespace BCG
-{
-   public enum RegistryRoot { HKCU, HKLM }
-
-   [Serializable]
-   public class BlueRegistry
-   {
-      public const string BlueSubKey = @"Software\Blue Capital Group\";
-      public static readonly string ApplicationPrefix;
-      protected string myFullPath;
-
-      public BlueRegistry(string subPath)
-      {
-         myFullPath = string.Concat(BlueRegistry.ApplicationPrefix, @"\", subPath);
-      }
-
-      public BlueRegistry(BlueRegistry parent, string subPath)
-      {
-         myFullPath = string.Concat(parent.myFullPath, @"\", subPath);
-      }
-
-      static BlueRegistry()
-      {
-         string app = "Applications";
-
-         Assembly ass = Assembly.GetEntryAssembly();
-         if (ass != null)
-         {
-            app = ass.GetName().Name;
-
-            object[] attrs = ass.GetCustomAttributes(
-               Type.GetType("System.Reflection.AssemblyTitleAttribute"), true);
-
-            if (attrs.Length > 0 && ((AssemblyTitleAttribute)attrs[0]).Title != string.Empty)
-            {
-               app = ((AssemblyTitleAttribute)attrs[0]).Title;
-            }
-         }
-
-         ApplicationPrefix = string.Concat(BlueRegistry.BlueSubKey, app);
-      }
-
-      public object getValue(string name)
-      {
-         return getValue(RegistryRoot.HKCU, name);
-      }
-
-      public object getValue(string name, object defaultValue)
-      {
-         return getValue(RegistryRoot.HKCU, name, defaultValue);
-      }
-
-      public void setValue(string name, object value)
-      {
-         setValue(RegistryRoot.HKCU, name, value);
-      }
-
-      public void deleteValue(string name)
-      {
-         deleteValue(RegistryRoot.HKCU, name);
-      }
-
-      private RegistryKey myGetRegistryKey(RegistryRoot root)
-      {
-         if (root == RegistryRoot.HKCU)
-            return Registry.CurrentUser.CreateSubKey(myFullPath);
-         else
-            return Registry.LocalMachine.CreateSubKey(myFullPath);
-      }
-
-      #region Generic Methods
-      public virtual void setValue(RegistryRoot root, string name, object value)
-      {
-         using (RegistryKey rk = myGetRegistryKey(root))
-         {
-            rk.SetValue(name, value);
-         }
-      }
-
-      internal virtual object getValue(RegistryRoot root, string name)
-      {
-         using (RegistryKey rk = myGetRegistryKey(root))
-         {
-            return rk.GetValue(name);
-         }
-      }
-
-      internal virtual void deleteValue(RegistryRoot root, string name)
-      {
-         using (RegistryKey rk = myGetRegistryKey(root))
-         {
-            rk.DeleteValue(name);
-         }
-      }
-
-      public virtual object getValue(RegistryRoot root, string name, object defaultValue)
-      {
-         using (RegistryKey rk = myGetRegistryKey(root))
-         {
-            return rk.GetValue(name, defaultValue);
-         }
-      }
-      #endregion
-
-      #region Double
-      internal virtual void setDouble(RegistryRoot root, string name, double value)
-      {
-         using (RegistryKey rk = myGetRegistryKey(root))
-         {
-            DoubleRegistryHandler.setValue(rk, name, value);
-         }
-      }
-
-      internal virtual double getDouble(RegistryRoot root, string name)
-      {
-         using (RegistryKey rk = myGetRegistryKey(root))
-         {
-            return DoubleRegistryHandler.getValue(rk, name);
-         }
-      }
-      #endregion
-
-      #region Enum
-      internal virtual void setEnum(RegistryRoot root, string name, Enum value)
-      {
-         using (RegistryKey rk = myGetRegistryKey(root))
-         {
-            EnumRegistryHandler.setValue(rk, name, value);
-         }
-      }
-
-      internal virtual Enum getEnum(RegistryRoot root, string name, Type enumType)
-      {
-         using (RegistryKey rk = myGetRegistryKey(root))
-         {
-            return EnumRegistryHandler.getValue(rk, name, enumType);
-         }
-      }
-      #endregion
-
-      #region Array
-      internal virtual void setArray(RegistryRoot root, string name, Array array)
-      {
-         using (RegistryKey rk = myGetRegistryKey(root))
-         {
-            ArrayRegistryHandler.setValue(rk, name, array);
-         }
-      }
-
-      internal virtual Array getArray(RegistryRoot root, string name, Type elementType)
-      {
-         using (RegistryKey rk = myGetRegistryKey(root))
-         {
-            return ArrayRegistryHandler.getValue(rk, name, elementType);
-         }
-      }
-      #endregion
-
-      #region SortedList
-      internal virtual void setSortedList(RegistryRoot root, string name, SortedList slist)
-      {
-         using (RegistryKey rk = myGetRegistryKey(root))
-         {
-            SortedListRegistryHandler.setValue(rk, name, slist);
-         }
-      }
-
-      internal virtual SortedList getSortedList(RegistryRoot root, string name)
-      {
-         using (RegistryKey rk = myGetRegistryKey(root))
-         {
-            return SortedListRegistryHandler.getValue(rk, name);
-         }
-      }
-
-      internal virtual void deleteSortedList(RegistryRoot root, string name)
-      {
-         using (RegistryKey rk = myGetRegistryKey(root))
-         {
-            SortedListRegistryHandler.deleteValue(rk, name);
-         }
-      }
-      #endregion
-   }
-}
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.Concurrent;
+using System.Reflection;
+using Microsoft.Win32;
+
+namespace BCG
+{
+   public enum RegistryRoot { HKCU, HKLM }
+
+   [Serializable]
+   public class BlueRegistry
+   {
+      public const string BlueSubKey = @"Software\Blue Capital Group\";
+      public static readonly string ApplicationPrefix;
+      protected string myFullPath;
+
+      public BlueRegistry(string subPath)
+      {
+         myFullPath = string.Concat(BlueRegistry.ApplicationPrefix, @"\", subPath);
+      }
+
+      public BlueRegistry(BlueRegistry parent, string subPath)
+      {
+         myFullPath = string.Concat(parent.myFullPath, @"\", subPath);
+      }
+
+      static BlueRegistry()
+      {
+         string app = "Applications";
+
+         Assembly ass = Assembly.GetEntryAssembly();
+         if (ass != null)
+         {
+            app = ass.GetName().Name;
+
+            object[] attrs = ass.GetCustomAttributes(
+               Type.GetType("System.Reflection.AssemblyTitleAttribute"), true);
+
+            if (attrs.Length > 0 && ((AssemblyTitleAttribute)attrs[0]).Title != string.Empty)
+            {
+               app = ((AssemblyTitleAttribute)attrs[0]).Title;
+            }
+         }
+
+         ApplicationPrefix = string.Concat(BlueRegistry.BlueSubKey, app);
+      }
+
+      public object getValue(string name)
+      {
+         return getValue(RegistryRoot.HKCU, name);
+      }
+
+      public object getValue(string name, object defaultValue)
+      {
+         return getValue(RegistryRoot.HKCU, name, defaultValue);
+      }
+
+      public void setValue(string name, object value)
+      {
+         setValue(RegistryRoot.HKCU, name, value);
+      }
+
+      public void deleteValue(string name)
+      {
+         deleteValue(RegistryRoot.HKCU, name);
+      }
+
+      private RegistryKey myGetRegistryKey(RegistryRoot root)
+      {
+         if (root == RegistryRoot.HKCU)
+            return Registry.CurrentUser.CreateSubKey(myFullPath);
+         else
+            return Registry.LocalMachine.CreateSubKey(myFullPath);
+      }
+
+      #region Generic Methods
+      internal virtual void setValue(RegistryRoot root, string name, object value)
+      {
+         using (RegistryKey rk = myGetRegistryKey(root))
+         {
+            rk.SetValue(name, value);
+         }
+      }
+
+      internal virtual object getValue(RegistryRoot root, string name)
+      {
+         using (RegistryKey rk = myGetRegistryKey(root))
+         {
+            return rk.GetValue(name);
+         }
+      }
+
+      internal virtual void deleteValue(RegistryRoot root, string name)
+      {
+         using (RegistryKey rk = myGetRegistryKey(root))
+         {
+            rk.DeleteValue(name);
+         }
+      }
+
+      internal virtual object getValue(RegistryRoot root, string name, object defaultValue)
+      {
+         using (RegistryKey rk = myGetRegistryKey(root))
+         {
+            return rk.GetValue(name, defaultValue);
+         }
+      }
+      #endregion
+
+      #region Double
+      internal virtual void setDouble(RegistryRoot root, string name, double value)
+      {
+         using (RegistryKey rk = myGetRegistryKey(root))
+         {
+            DoubleRegistryHandler.setValue(rk, name, value);
+         }
+      }
+
+      internal virtual double getDouble(RegistryRoot root, string name)
+      {
+         using (RegistryKey rk = myGetRegistryKey(root))
+         {
+            return DoubleRegistryHandler.getValue(rk, name);
+         }
+      }
+      #endregion
+
+      #region Enum
+      internal virtual void setEnum(RegistryRoot root, string name, Enum value)
+      {
+         using (RegistryKey rk = myGetRegistryKey(root))
+         {
+            EnumRegistryHandler.setValue(rk, name, value);
+         }
+      }
+
+      internal virtual Enum getEnum(RegistryRoot root, string name, Type enumType)
+      {
+         using (RegistryKey rk = myGetRegistryKey(root))
+         {
+            return EnumRegistryHandler.getValue(rk, name, enumType);
+         }
+      }
+      #endregion
+
+      #region Array
+      internal virtual void setArray(RegistryRoot root, string name, Array array)
+      {
+         using (RegistryKey rk = myGetRegistryKey(root))
+         {
+            ArrayRegistryHandler.setValue(rk, name, array);
+         }
+      }
+
+      internal virtual Array getArray(RegistryRoot root, string name, Type elementType)
+      {
+         using (RegistryKey rk = myGetRegistryKey(root))
+         {
+            return ArrayRegistryHandler.getValue(rk, name, elementType);
+         }
+      }
+      #endregion
+
+      #region SortedList
+      internal virtual void setSortedList(RegistryRoot root, string name, SortedList slist)
+      {
+         using (RegistryKey rk = myGetRegistryKey(root))
+         {
+            SortedListRegistryHandler.setValue(rk, name, slist);
+         }
+      }
+
+      internal virtual SortedList getSortedList(RegistryRoot root, string name)
+      {
+         using (RegistryKey rk = myGetRegistryKey(root))
+         {
+            return SortedListRegistryHandler.getValue(rk, name);
+         }
+      }
+
+      internal virtual void deleteSortedList(RegistryRoot root, string name)
+      {
+         using (RegistryKey rk = myGetRegistryKey(root))
+         {
+            SortedListRegistryHandler.deleteValue(rk, name);
+         }
+      }
+      #endregion
+   }
+}
@@ -1,9 +1,10 @@
 <Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net8.0-windows</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
+    <UseWindowsForms>true</UseWindowsForms>
  </PropertyGroup>

 </Project>
@@ -1,6 +1,4 @@
 using System;
-using System.Runtime.Versioning;
-
 using Microsoft.Win32;

 namespace BCG
@@ -12,7 +10,6 @@ namespace BCG
         rk.SetValue (name, value.ToString ());
      }

-      [SupportedOSPlatform("windows")]
      public static double getValue (RegistryKey rk, string name)
      {
         object v = rk.GetValue (name);
@@ -1,166 +1,166 @@
-using System;
-using System.Reflection;
-using System.Windows.Forms;
-using System.Drawing;
-using System.Diagnostics;
-using Microsoft.Win32;
-
-namespace BCG
-{
-   public class PersistWindowState
-   {
-      // event info that allows form to persist extra window state data
-      public delegate void WindowStateHandler (object sender, BlueRegistry bluereg);
-      public event WindowStateHandler LoadState;
-      public event WindowStateHandler SaveState;
-
-      private Form myParent;
-      private BlueRegistry myRegistry;
-
-      private int myNormalLeft;
-      private int myNormalTop;
-      private int myNormalWidth;
-      private int myNormalHeight;
-      private bool myResizable = true;
-      private FormWindowState myWindowState;
-      private bool myAllowSaveMinimized = false;
-      private bool mySavePosition = true;
-      private bool mySaveState = true;
-
-      public PersistWindowState (bool savePosition)
-      {
-         mySavePosition = savePosition;
-      }
-
-      public PersistWindowState ()
-      {
-      }
-
-      public bool saveState
-      {
-         [DebuggerStepThrough]
-         set { mySaveState = value; }
-      }
-
-      public Form parent
-      {
-         [DebuggerStepThrough]
-         get { return myParent; }
-         set
-         {
-            myParent = value;
-            myRegistry = new BlueRegistry (myParent.Text);
-
-            // subscribe to parent form's events
-            myParent.Closing += new System.ComponentModel.CancelEventHandler(myOnClosing);
-            myParent.Resize += new System.EventHandler(myOnResize);
-            myParent.Move += new System.EventHandler(myOnMove);
-            myParent.Load += new System.EventHandler(myOnLoad);
-
-            // get initial width and height in case form is never resized
-            myNormalWidth = myParent.Width;
-            myNormalHeight = myParent.Height;
-         }
-      }
-
-      public BlueRegistry blueRegistry
-      {
-         [DebuggerStepThrough]
-         get { return myRegistry; }
-         [DebuggerStepThrough]
-         set { myRegistry = value; }
-      }
-
-      public bool resizable
-      {
-         [DebuggerStepThrough]
-         set { myResizable = value; }
-      }
-
-      public bool allowSaveMinimized
-      {
-         [DebuggerStepThrough]
-         set { myAllowSaveMinimized = value; }
-      }
-
-      private void myOnResize(object sender, System.EventArgs e)
-      {
-         // save width and height
-         if (myParent.WindowState == FormWindowState.Normal && myResizable)
-         {
-            myNormalWidth = myParent.Width;
-            myNormalHeight = myParent.Height;
-         }
-      }
-
-      private void myOnMove(object sender, System.EventArgs e)
-      {
-         // save position
-         if(myParent.WindowState == FormWindowState.Normal)
-         {
-            myNormalLeft = myParent.Left;
-            myNormalTop = myParent.Top;
-         }
-         // save state
-         myWindowState = myParent.WindowState;
-      }
-
-      private void myOnClosing(object sender, System.ComponentModel.CancelEventArgs e)
-      {
-         // save position, size and state
-         if (mySavePosition)
-         {
-            myRegistry.setValue (RegistryRoot.HKCU, "Left", myNormalLeft);
-            myRegistry.setValue (RegistryRoot.HKCU, "Top", myNormalTop);
-         }
-
-         if (myResizable)
-         {
-            myRegistry.setValue (RegistryRoot.HKCU, "Width", myNormalWidth);
-            myRegistry.setValue (RegistryRoot.HKCU, "Height", myNormalHeight);
-         }
-
-         // check if we are allowed to save the state as minimized (not normally)
-         if (!myAllowSaveMinimized)
-         {
-            if(myWindowState == FormWindowState.Minimized)
-               myWindowState = FormWindowState.Normal;
-         }
-
-         if (mySaveState)
-            myRegistry.setValue (RegistryRoot.HKCU, "WindowState", (int) myWindowState);
-        
-         // fire SaveState event
-         if (SaveState != null)
-            SaveState (this, myRegistry);
-      }
-
-      private void myOnLoad (object sender, System.EventArgs e)
-      {
-         if (mySavePosition)
-         {
-            int left = (int) myRegistry.getValue (RegistryRoot.HKCU, "Left", myParent.Left);
-            int top = (int) myRegistry.getValue (RegistryRoot.HKCU, "Top", myParent.Top);
-            myParent.Location = new Point (left, top);
-         }
-
-         if (myResizable)
-         {
-            int width = (int) myRegistry.getValue (RegistryRoot.HKCU, "Width", myParent.Width);
-            int height = (int) myRegistry.getValue (RegistryRoot.HKCU, "Height", myParent.Height);
-            myParent.Size = new Size (width, height);
-         }
-            
-         if (mySaveState)
-         {
-            FormWindowState windowState = (FormWindowState) myRegistry.getValue (RegistryRoot.HKCU, "WindowState", 
-               (int) myParent.WindowState);
-            myParent.WindowState = windowState;
-         }
-
-         // fire LoadState event
-         if(LoadState != null)
-            LoadState (this, myRegistry);
-      }
-   }
-}
+using System;
+using System.Reflection;
+using System.Windows.Forms;
+using System.Drawing;
+using System.Diagnostics;
+using Microsoft.Win32;
+
+namespace BCG
+{
+   public class PersistWindowState
+   {
+      // event info that allows form to persist extra window state data
+      public delegate void WindowStateHandler (object sender, BlueRegistry bluereg);
+      public event WindowStateHandler LoadState;
+      public event WindowStateHandler SaveState;
+
+      private Form myParent;
+      private BlueRegistry myRegistry;
+
+      private int myNormalLeft;
+      private int myNormalTop;
+      private int myNormalWidth;
+      private int myNormalHeight;
+      private bool myResizable = true;
+      private FormWindowState myWindowState;
+      private bool myAllowSaveMinimized = false;
+      private bool mySavePosition = true;
+      private bool mySaveState = true;
+
+      public PersistWindowState (bool savePosition)
+      {
+         mySavePosition = savePosition;
+      }
+
+      public PersistWindowState ()
+      {
+      }
+
+      public bool saveState
+      {
+         [DebuggerStepThrough]
+         set { mySaveState = value; }
+      }
+
+      public Form parent
+      {
+         [DebuggerStepThrough]
+         get { return myParent; }
+         set
+         {
+            myParent = value;
+            myRegistry = new BlueRegistry (myParent.Text);
+
+            // subscribe to parent form's events
+            myParent.Closing += new System.ComponentModel.CancelEventHandler(myOnClosing);
+            myParent.Resize += new System.EventHandler(myOnResize);
+            myParent.Move += new System.EventHandler(myOnMove);
+            myParent.Load += new System.EventHandler(myOnLoad);
+
+            // get initial width and height in case form is never resized
+            myNormalWidth = myParent.Width;
+            myNormalHeight = myParent.Height;
+         }
+      }
+
+      public BlueRegistry blueRegistry
+      {
+         [DebuggerStepThrough]
+         get { return myRegistry; }
+         [DebuggerStepThrough]
+         set { myRegistry = value; }
+      }
+
+      public bool resizable
+      {
+         [DebuggerStepThrough]
+         set { myResizable = value; }
+      }
+
+      public bool allowSaveMinimized
+      {
+         [DebuggerStepThrough]
+         set { myAllowSaveMinimized = value; }
+      }
+
+      private void myOnResize(object sender, System.EventArgs e)
+      {
+         // save width and height
+         if (myParent.WindowState == FormWindowState.Normal && myResizable)
+         {
+            myNormalWidth = myParent.Width;
+            myNormalHeight = myParent.Height;
+         }
+      }
+
+      private void myOnMove(object sender, System.EventArgs e)
+      {
+         // save position
+         if(myParent.WindowState == FormWindowState.Normal)
+         {
+            myNormalLeft = myParent.Left;
+            myNormalTop = myParent.Top;
+         }
+         // save state
+         myWindowState = myParent.WindowState;
+      }
+
+      private void myOnClosing(object sender, System.ComponentModel.CancelEventArgs e)
+      {
+         // save position, size and state
+         if (mySavePosition)
+         {
+            myRegistry.setValue (RegistryRoot.HKCU, "Left", myNormalLeft);
+            myRegistry.setValue (RegistryRoot.HKCU, "Top", myNormalTop);
+         }
+
+         if (myResizable)
+         {
+            myRegistry.setValue (RegistryRoot.HKCU, "Width", myNormalWidth);
+            myRegistry.setValue (RegistryRoot.HKCU, "Height", myNormalHeight);
+         }
+
+         // check if we are allowed to save the state as minimized (not normally)
+         if (!myAllowSaveMinimized)
+         {
+            if(myWindowState == FormWindowState.Minimized)
+               myWindowState = FormWindowState.Normal;
+         }
+
+         if (mySaveState)
+            myRegistry.setValue (RegistryRoot.HKCU, "WindowState", (int) myWindowState);
+        
+         // fire SaveState event
+         if (SaveState != null)
+            SaveState (this, myRegistry);
+      }
+
+      private void myOnLoad (object sender, System.EventArgs e)
+      {
+         if (mySavePosition)
+         {
+            int left = (int) myRegistry.getValue (RegistryRoot.HKCU, "Left", myParent.Left);
+            int top = (int) myRegistry.getValue (RegistryRoot.HKCU, "Top", myParent.Top);
+            myParent.Location = new Point (left, top);
+         }
+
+         if (myResizable)
+         {
+            int width = (int) myRegistry.getValue (RegistryRoot.HKCU, "Width", myParent.Width);
+            int height = (int) myRegistry.getValue (RegistryRoot.HKCU, "Height", myParent.Height);
+            myParent.Size = new Size (width, height);
+         }
+            
+         if (mySaveState)
+         {
+            FormWindowState windowState = (FormWindowState) myRegistry.getValue (RegistryRoot.HKCU, "WindowState", 
+               (int) myParent.WindowState);
+            myParent.WindowState = windowState;
+         }
+
+         // fire LoadState event
+         if(LoadState != null)
+            LoadState (this, myRegistry);
+      }
+   }
+}
@@ -6,80 +6,23 @@ using Spark.Core.Collections;

 static class ArgumentComparer {
   public static int Compare(
-      IArgument value1, IArgument value2, IDictionary<string, object?> env) {
+      IArgument value1, IArgument value2, IDictionary<string,object?> env) {
      if (value1 is null) {
         throw new ArgumentNullException(nameof(value1));
      }
      if (value2 is null) {
         throw new ArgumentNullException(nameof(value2));
      }
-      var obj1 = value1.GetValue(env);
-      var obj2 = value2.GetValue(env);
-      if (obj1 is null) {
-         if (obj2 is null) {
-            return 0;
-         }
-         return -1;
-      }
-      if (obj2 is null) {
-         return 1;
-      }
-      return compareObjs(obj1, obj2);
-   }
-
-   static int compareObjs(object obj1, object obj2) {
+      var cmp1 = value1.Cast<IComparable>();
+      var cmp2 = value2.Cast<IComparable>();
      try {
-         var typ1 = obj1.GetType();
-         var typ2 = obj2.GetType();
-         bool areSameTypes = typ1 == typ2;
-         if (areSameTypes) {
-            return ((IComparable)obj1).CompareTo(obj2);
-         }
-         if (typ1.IsNumeric()) {
-            return tryCompareNumeric(obj1, obj2);
-         } else if (typ2.IsNumeric()) {
-            return -tryCompareNumeric(obj2, obj1);
-         } else if (typ1.IsEnum) {
-            if (typ2 == typeof(string)) {
-               return -((string)obj2).CompareTo(obj1.ToString());
-            }
-         } else if (typ1 == typeof(string)) {
-            return ((string)obj1).CompareTo(obj2.ToString());
-         } else if (typ1 == typeof(DateTime)) {
-            if (typ2 == typeof(TimeSpan)) {
-               return ((DateTime)obj1).Ticks.CompareTo(((TimeSpan)obj2).Ticks);
-            }
-         } else if (typ1 == typeof(TimeSpan)) {
-            if (typ2 == typeof(DateTime)) {
-               return ((TimeSpan)obj1).Ticks.CompareTo(((DateTime)obj2).Ticks);
-            }
-         }
+         var v1 = cmp1.GetValue(env);
+         var v2 = cmp2.GetValue(env);
+         return v1.GetType().IsNumeric() ?
+            new NumericComparer().Compare(v1, v2) : v1.CompareTo(v2);
      } catch (Exception ex) {
         Log.Ui.error($"Comparison failed: {ex}");
         throw;
      }
-      throw new ArgumentException("Failed to compare obj1 and obj2", nameof(obj1));
-   }
-
-   static int tryCompareNumeric(object numericObj1, object obj2) {
-      var typ2 = obj2.GetType();
-      if (typ2.IsNumeric()) {
-         return new NumericComparer().Compare(numericObj1, obj2);
-      } else if (typ2.IsEnum) {
-         var undTyp2 = typ2.GetEnumUnderlyingType();
-         if (undTyp2 == typeof(byte)) {
-            return new NumericComparer().Compare(numericObj1, (byte)obj2);
-         }
-         if (undTyp2 == typeof(short)) {
-            return new NumericComparer().Compare(numericObj1, (short)obj2);
-         }
-         if (undTyp2 == typeof(int)) {
-            return new NumericComparer().Compare(numericObj1, (int)obj2);
-         }
-         if (undTyp2 == typeof(long)) {
-            return new NumericComparer().Compare(numericObj1, (long)obj2);
-         }
-      }
-      throw new ArgumentException("Failed to compare numeric obj1 and obj2", nameof(obj2));
   }
 }
@@ -1,11 +1,19 @@
 namespace Bts.BooleanExpressions;

+using bts;
+
 class BooleanExpression : IBooleanExpression {
   readonly Func<IDictionary<string, object?>, bool> evaluate;

   public BooleanExpression(Func<IDictionary<string, object?>, bool> evaluate) =>
      this.evaluate = evaluate;

-   public bool Evaluate(IDictionary<string, object?> env) =>
-      evaluate(env);
+   public bool Evaluate(IDictionary<string, object?> env) {
+      try {
+         return evaluate(env);
+      } catch (Exception ex) {
+         Log.assert(false, $"BooleanExpression.Evaluate failed: {ex}");
+         throw;
+      }
+   }
 }
@@ -42,11 +42,15 @@ OpenParenthesis          \(
 CloseParenthesis         \)
 Comma                    ,
 Negate                   '!'
-MapsTo                   ':'
 IsOfType                 '/'

 %%

+{StringConstant} {
+   yylval.String = yytext.Substring(1, yytext.Length - 2).Replace(@"\'", "'");
+   return (int)Token.STRING_CONSTANT;
+} 
+
 {BooleanConstant} {
   yylval.Boolean = yytext.ToLower() switch {
      "true" => true,
@@ -57,11 +61,6 @@ IsOfType                 '/'
   return (int)Token.BOOLEAN_CONSTANT;
 }

-{StringConstant} {
-   yylval.String = yytext.Substring(1, yytext.Length - 2).Replace(@"\'", "'");
-   return (int)Token.STRING_CONSTANT;
-} 
-
 {NullConstant} {
   yylval.Null = DBNull.Value;
   return (int)Token.NULL_CONSTANT;
@@ -98,10 +97,6 @@ IsOfType                 '/'
   return (int)Token.NEGATE;
 }

-{MapsTo} {
-   return (int)Token.MAPS_TO;
-}
-
 {Equal} {
   return (int)Token.EQUAL;
 }
@@ -8,23 +8,13 @@

  <ItemGroup>
    <PackageReference Include="Google.Protobuf" Version="3.24.3" />
-    <PackageReference Include="YaccLexTools" Version="1.2.3" />
+    <PackageReference Include="YaccLexTools" Version="1.2.0" />
  </ItemGroup>

-  <Choose>
-    <When Condition="'$(UseProjectRefs)' == 'true'">
-      <ItemGroup>
-        <ProjectReference Include="..\ExpressionCore\ExpressionCore.csproj" />
-        <ProjectReference Include="..\..\cs\Bts.Spark.Core\Bts.Spark.Core.csproj" />
-      </ItemGroup>
-    </When>
-    <Otherwise>
-      <ItemGroup>
-        <PackageReference Include="ExpressionCore" Version="$(SparkVersion)" />
-        <PackageReference Include="Bts.Spark.Core" Version="$(SparkVersion)" />
-      </ItemGroup>
-    </Otherwise>
-  </Choose>
+  <ItemGroup>
+    <ProjectReference Include="..\ExpressionCore\ExpressionCore.csproj" />
+    <ProjectReference Include="..\..\client\spark_core\spark_core.csproj" />
+  </ItemGroup>
  
  <ItemGroup>
    <Scanner Include="BooleanExpressionTokens.lex" />
@@ -10,20 +10,11 @@
    <PackageReference Include="YaccLexTools" Version="1.2.2" />
  </ItemGroup>

-  <Choose>
-    <When Condition="'$(UseProjectRefs)' == 'true'">
-      <ItemGroup>
-        <ProjectReference Include="..\DataStreamCore\DataStreamCore.csproj" />
-        <ProjectReference Include="..\ExpressionCore\ExpressionCore.csproj" />
-      </ItemGroup>
-    </When>
-    <Otherwise>
-      <ItemGroup>
-        <PackageReference Include="DataStreamCore" Version="$(SparkVersion)" />
-        <PackageReference Include="ExpressionCore" Version="$(SparkVersion)" />
-      </ItemGroup>
-    </Otherwise>
-  </Choose>
+  <ItemGroup>
+    <ProjectReference Include="..\DataStreamCore\DataStreamCore.csproj" />
+    <ProjectReference Include="..\ExpressionCore\ExpressionCore.csproj" />
+    <ProjectReference Include="..\..\client\spark_core\spark_core.csproj" />
+  </ItemGroup>

  <ItemGroup Label="ColumnExpression">
    <Scanner Include="ColumnExpressionTokens.lex" />
@@ -10,20 +10,11 @@
    <PackageReference Include="YaccLexTools" Version="1.2.2" />
  </ItemGroup>

-  <Choose>
-    <When Condition="'$(UseProjectRefs)' == 'true'">
-      <ItemGroup>
-        <ProjectReference Include="..\DataStreamCore\DataStreamCore.csproj" />
-        <ProjectReference Include="..\ExpressionCore\ExpressionCore.csproj" />
-      </ItemGroup>
-    </When>
-    <Otherwise>
-      <ItemGroup>
-        <PackageReference Include="DataStreamCore" Version="$(SparkVersion)" />
-        <PackageReference Include="ExpressionCore" Version="$(SparkVersion)" />
-      </ItemGroup>
-    </Otherwise>
-  </Choose>
+  <ItemGroup>
+    <ProjectReference Include="..\DataStreamCore\DataStreamCore.csproj" />
+    <ProjectReference Include="..\ExpressionCore\ExpressionCore.csproj" />
+    <ProjectReference Include="..\..\client\spark_core\spark_core.csproj" />
+  </ItemGroup>

  <ItemGroup Label="ColumnSortExpression">
    <Scanner Include="ColumnSortExpressionTokens.lex" />
@@ -0,0 +1,15 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\client\spark_websocket\spark_websocket.csproj" />
+    <ProjectReference Include="..\DataStreamExpressions\DataStreamExpressions.csproj" />
+    <ProjectReference Include="..\..\client\spark_core\spark_core.csproj" />
+  </ItemGroup>
+
+</Project>
@@ -0,0 +1,9 @@
+namespace Bts.DataStream.Websocket;
+
+class ClientSubscription(WebsocketClientID id, SubscriptionParams @params, IDisposable dispose) : IDisposable {
+   public SubscriptionParams Params => @params;
+   public WebsocketClientID Id => id;
+
+   public void Dispose() =>
+      dispose.Dispose();
+}
@@ -0,0 +1,301 @@
+namespace Bts.DataStream.Websocket;
+
+using BCG;
+
+using bts;
+using bts.api.core;
+using bts.collections;
+using bts.websocket_core.json_rpc;
+
+using Bts.DataStreamExpressions;
+
+using mbts.utils;
+
+using Spark.Core.Disposables;
+using Spark.Core.Json;
+
+using System.Buffers;
+using System.Reactive.Subjects;
+using System.Text;
+using System.Text.Json;
+using System.Text.Json.Nodes;
+
+/// <summary>
+/// Represents an I/O model (<see cref="ISubject{TSource, TResult}"/>), that accepts websocket
+/// requests (from clients) as input, and emits data/notifications (to clients) as output.
+/// This class's chief role is managing data subscriptions to sparkd on the clients' behalf.
+/// </summary>
+public class DataSync(JsonSerializerOptions? serializerOpts = null) :
+   ISubject<WebsocketConnectionUpdate, IEnumerable<WebsocketOutgoingMessage>> {
+   protected readonly object lockObj = new();
+   readonly JsonSerializerOptions serializerOpts = serializerOpts ?? JsonSerializerOptions.Default;
+   readonly Dictionary<WebsocketClientID, List<ClientSubscription>> clients = [];
+
+   event Action<IEnumerable<WebsocketOutgoingMessage>>? requestSend;
+
+   public void OnCompleted() =>
+      Log.Api.info("DataSync incoming request stream has completed.");
+
+   public void OnError(Exception error) =>
+      Log.Api.error($"DataSync error: {error}");
+
+   public void OnNext(WebsocketConnectionUpdate value) {
+      switch (value.Type) {
+         case WebsocketConnectionUpdateType.IncomingMessage:
+            onIncomingMessage(value.IncomingMessage);
+            break;
+         case WebsocketConnectionUpdateType.Connect:
+            onConnect(value.Connect);
+            break;
+         case WebsocketConnectionUpdateType.Disconnect:
+            onDisconnect(value.Disconnect);
+            break;
+         default:
+            Log.assert(false, $"Unexpected WebsocketConnectionUpdate type: {value.Type}");
+            break;
+      }
+   }
+
+   public IDisposable Subscribe(IObserver<IEnumerable<WebsocketOutgoingMessage>> observer) {
+      lock (lockObj) {
+         requestSend += observer.OnNext;
+         return Disposable.Create(Dispose);
+      }
+      void Dispose() {
+         lock (lockObj) {
+            requestSend -= observer.OnNext;
+         }
+      }
+   }
+
+   static JsonRpcId? extractRpcId(string messageBody) {
+      try {
+         return JsonNode.Parse(messageBody)
+            ?.AsObject()
+            ?.GetValueOrDefault("id")
+            ?.Deserialize<JsonRpcId>();
+      } catch {
+         return null;
+      }
+   }
+
+   static string getRpcNotification(DataPacket dp) {
+      using (var buffer = new MemoryStream())
+      using (var writer = new Utf8JsonWriter(buffer))
+      using (writer.WriteObject()) {
+         writer.WriteString("method", "subscription");
+         using (writer.WriteObject("params")) {
+            writer.Write("tableName", dp.schema.tableName);
+            writer.Write("columns", dp.schema.columnInfo);
+            var cellJsonFactories = dp.schema.columnInfo.Select(getCellJsonFactory).ToList();
+            using (writer.WriteArray("added")) {
+               foreach (IBlueRow row in (dp.addedRows?.Cast<IBlueRow>()).empty_if_null()) {
+                  using (writer.WriteObject()) {
+                     for (int i = 0; i < cellJsonFactories.Count; i++) {
+                        writer.Write(dp.schema.columnInfo[i].colName, cellJsonFactories[i](row));
+                     }
+                  }
+               }
+            }
+            using (writer.WriteArray("deleted")) {
+               foreach (IBlueRow row in (dp.deletedRows?.Cast<IBlueRow>()).empty_if_null()) {
+                  using (writer.WriteObject()) {
+                     for (int i = 0; i < cellJsonFactories.Count; i++) {
+                        writer.Write(dp.schema.columnInfo[i].colName, cellJsonFactories[i](row));
+                     }
+                  }
+               }
+            }
+         }
+         writer.WriteString("jsonrpc", "2.0");
+         writer.Flush();
+         return Encoding.UTF8.GetString(buffer.ToArray());
+      }
+   }
+
+   static Func<IBlueRow, JsonNode?> getCellJsonFactory(ColumnInfo colInfo) {
+      var t = colInfo.colType;
+      if (t == typeof(int)) {
+         return NullCheckWrapper(v => (int)v);
+      }
+      if (t == typeof(uint)) {
+         return NullCheckWrapper(v => (uint)v);
+      }
+      if (t == typeof(long)) {
+         return NullCheckWrapper(v => (long)v);
+      }
+      if (t == typeof(ulong)) {
+         return NullCheckWrapper(v => (ulong)v);
+      }
+      if (t == typeof(short)) {
+         return NullCheckWrapper(v => (short)v);
+      }
+      if (t == typeof(ushort)) {
+         return NullCheckWrapper(v => (ushort)v);
+      }
+      if (t == typeof(double)) {
+         return NullCheckWrapper(v => (double)v);
+      }
+      if (t == typeof(float)) {
+         return NullCheckWrapper(v => (float)v);
+      }
+      if (t == typeof(bool)) {
+         return NullCheckWrapper(v => (bool)v);
+      }
+      return NullCheckWrapper(v => (string)v);
+
+      Func<IBlueRow, JsonNode?> NullCheckWrapper(Func<object, JsonNode> toJson) =>
+         r => {
+            var obj = r[colInfo.colNo];
+            if (obj is null) {
+               return null;
+            }
+            return toJson(obj);
+         };
+   }
+
+   void onConnect(WebsocketConnectNotification notification) {
+      var id = notification.Id;
+      lock (lockObj) {
+         clients.Add(id, []);
+      }
+      Log.Api.info($"DataStreamWebsocketDataSync client connected. clientId: {notification.Id}");
+      if (notification.Message is not null) {
+         onIncomingMessage(notification.Message);
+      }
+   }
+
+   void onDisconnect(WebsocketDisconnectNotification notification) {
+      Log.Api.warn($"DataStreamWebsocketDataSync client disconnected. clientId: {notification.Id}");
+      unsubscribeAll(notification.Id);
+      clients.Remove(notification.Id);
+   }
+
+   void onIncomingMessage(WebsocketIncomingMessage message) {
+      var id = message.sender_client_id;
+      if (!JsonRpcRequest.TryDeserialize(message, out var req, out var err)) {
+         onBadRequest(message, err);
+         return;
+      }
+      switch (req.Method!.ToLower()) {
+         case "subscribe":
+            subscribe(id, req);
+            break;
+         case "publish":
+            Log.Api.error("DataStreamWebsocket api 'publish' not implemented.");
+            // TODO
+            break;
+         case "unsubscribe":
+            unsubscribe(id, req);
+            break;
+         case "unsubscribe_all":
+            unsubscribeAll(id);
+            break;
+         default:
+            Log.Api.error($"Received request of unknown type: {req}");
+            break;
+      }
+   }
+
+   void sendResponse<T>(WebsocketClientID id, JsonRpcId rpcId, T rpcParams) {
+      var rpcRes = JsonRpcResponse.Create(rpcId, rpcParams);
+      var rpcResStr = JsonSerializer.Serialize(rpcRes, serializerOpts);
+      send([new(id, rpcResStr)]);
+   }
+
+   void sendError<T>(WebsocketClientID id, JsonRpcId rpcId, JsonRpcError<T> error) {
+      var rpcRes = JsonRpcResponse.CreateError(rpcId, error);
+      var rpcResStr = JsonSerializer.Serialize(rpcRes, serializerOpts);
+      send([new(id, rpcResStr)]);
+   }
+
+   bool send(IEnumerable<WebsocketOutgoingMessage> messages) {
+      lock (lockObj) {
+         if (requestSend is null) {
+            Log.Api.warn(
+               $"Unable to send message(s) because '{nameof(requestSend)}' handler is null");
+            return false;
+         }
+         requestSend(messages);
+         return true;
+      }
+   }
+
+   void subscribe(WebsocketClientID id, JsonRpcRequest<JsonObject?> req) {
+      var subParams = req.Params!.Deserialize<SubscriptionParams>()!;
+      var exp = DataStreamExpressionsInterpreter.Evaluate(subParams.Query!);
+      var stream = exp.getView(new Dictionary<string, StatementExpression>(0));
+      var sub = new ClientSubscription(id, subParams, Disposable.Create(Dispose));
+      lock (lockObj) {
+         clients[id].Add(sub);
+         sendResponse(id, req.Id!.Value, req.Params);
+         stream.onChange += OnChange;
+      }
+
+      void OnChange(object? newValue) {
+         var dp = ExceptionAssert.of_type<DataPacket>(newValue);
+         var notif = getRpcNotification(dp);
+         send([new(id, notif)]);
+      }
+
+      void Dispose() =>
+         stream.onChange -= OnChange;
+   }
+
+   void unsubscribe(WebsocketClientID id, JsonRpcRequest<JsonObject?> req) {
+      var subParams = req.Params!.Deserialize<SubscriptionParams>();
+      var subParamsStr = JsonSerializer.Serialize(subParams, serializerOpts);
+      // Minimize amount of code inside lock (just need it to find/remove the subscription)
+      List<ClientSubscription>? subs = null;
+      ClientSubscription? sub = null;
+      lock (lockObj) {
+         subs = clients.GetValueOrDefault(id);
+         subs?.TryRemoveFirst(s => s!.Params.Equals(subParams), out sub);
+      }
+      if (subs is null) {
+         // Didn't find client (log/throw).
+         var msg = $"Unable to unsubscribe: did not find client. Id: {id}.\nParams:\n{subParamsStr}";
+         Log.Api.error(msg);
+         throw new Exception(msg);
+      }
+      if (sub is null) {
+         // Found client, but didn't find subscription (log/throw).
+         var msg = $"Unable to unsubscribe: did not find the specified subscription. " +
+            $"Id: {id}. Request:\n{subParams}";
+         Log.Api.error(msg);
+         throw new Exception(msg);
+      }
+      // Found client and subscription (dispose/remove subscription).
+      Log.Api.info($"Unsubscribing client. Id: {id}.\nParams:\n{subParamsStr}");
+      sub.Dispose();
+   }
+
+   void unsubscribeAll(WebsocketClientID id) {
+      lock (lockObj) {
+         if (!clients.TryGetValue(id, out var subs)) {
+            throw new Exception(
+               $"Unable to unsubscribe: did not find client with id {id}");
+         }
+         subs.DisposeAll();
+         subs.Clear();
+      }
+   }
+
+   void onBadRequest(WebsocketIncomingMessage req, string? errorMsg) {
+      var rpcId = extractRpcId(req.message_body);
+      var logMsg = $"Recieved invalid request:\n{req.message_body}";
+      if (errorMsg is not null) {
+         logMsg += $"\n\n**Exception**\n{errorMsg}";
+      }
+      Log.Api.error(logMsg);
+      if (rpcId is null) {
+         return;
+      }
+      // Send error back to client
+      var rpcErr = JsonRpcError.Create(
+         (long)JsonRpcErrorCode.InvalidRequest,
+         $"Received invalid request: {errorMsg ?? "unknown error"}",
+         req.message_body);
+      sendError(req.sender_client_id, rpcId.Value, rpcErr);
+   }
+}
@@ -0,0 +1,34 @@
+namespace Bts.DataStream.Websocket;
+
+using Newtonsoft.Json.Linq;
+
+using System.Diagnostics.CodeAnalysis;
+
+public static class JObjectExtensions {
+   public static bool TryParse<T>(
+      this JObject filter, string key, [MaybeNull] out T obj, [NotNullWhen(false)] out string? error) {
+      obj = default;
+      var value = filter.GetValueOrDefault(key)?.ToString();
+      if (value == null) {
+         error = $"{key} not present";
+         return true;
+      }
+      return WebsocketJsonParsers.TryParse(value, key, out obj, out error);
+   }
+
+   public static bool TryParse<T>(
+     this JObject filter, string key, out T result, [NotNullWhen(false)] out string? error, T defaultValue) {
+      var value = filter.GetValueOrDefault(key)?.ToString();
+      if (value == null) {
+         result = defaultValue;
+         error = $"{key} not present";
+         return true;
+      }
+      if (WebsocketJsonParsers.TryParse<T>(value, key, out var maybeRes, out error)) {
+         result = maybeRes ?? defaultValue;
+         return true;
+      }
+      result = defaultValue;
+      return false;
+   }
+}
@@ -0,0 +1,48 @@
+namespace Bts.DataStream.Websocket;
+
+using Spark.Core;
+
+using System;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+class MultilineStringJsonConverter : JsonConverter<string> {
+   public override string? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) {
+      if (typeToConvert != typeof(string)) {
+         throw new ArgumentException($"Unable to parse {typeToConvert}", nameof(typeToConvert));
+      }
+      return reader.TokenType switch {
+         JsonTokenType.String => StringImpl(ref reader),
+         JsonTokenType.StartArray => ArrayImpl(ref reader),
+         _ => throw new ArgumentException(
+            $"Unable to parse {typeof(SubscriptionParams)} from {reader.TokenType}"),
+      };
+
+      static string? StringImpl(ref Utf8JsonReader reader) =>
+         new(reader.GetString()!);
+
+      static string? ArrayImpl(ref Utf8JsonReader reader) {
+         var lines = new List<string>(2);
+         while (reader.Read()) {
+            switch (reader.TokenType) {
+               case JsonTokenType.String:
+                  lines.Add(reader.GetString()!);
+                  break;
+               case JsonTokenType.EndArray:
+                  return string.Join("\n", lines);
+            }
+         }
+         throw new JsonException(
+            $"Failed to parse {typeof(SubscriptionParams)} (did not reach end of array)");
+      }
+   }
+
+   public override void Write(Utf8JsonWriter writer, string value, JsonSerializerOptions options) {
+      var lines = value.Split("\n");
+      if (lines.Length < 2) {
+         writer.WriteRawValue(value);
+         return;
+      }
+      writer.WriteRawValue($"[{", ".join(lines)}]");
+   }
+}
@@ -0,0 +1,8 @@
+namespace Bts.DataStream.Websocket;
+
+public enum RequestType {
+   Unspecified,
+   Subscribe,
+   Unsubscribe,
+   UnsubscribeAll,
+}
@@ -0,0 +1,25 @@
+namespace Bts.DataStream.Websocket;
+
+using bts;
+
+using Google.Protobuf;
+
+using System.Text.Json;
+
+public static class Session {
+   static int sessionIdCounter;
+
+   public static async Task Start(
+      WebsocketServerConfig config, JsonSerializerOptions? opts) {
+      opts ??= JsonSerializerOptions.Default;
+      var sessionId = Interlocked.Increment(ref sessionIdCounter);
+      var gateway = new WebsocketClient(config);
+      var sync = new DataSync(opts);
+      using (gateway.Subscribe(sync))
+      using (sync.Subscribe(gateway)) {
+         Log.Api.info($"Starting DataStream Websocket Session {sessionId}");
+         Log.Api.info($"DataStream Websocket Session {sessionId} config:\n{JsonFormatter.Default.Format(config)}");
+         await gateway.ConnectAsync();
+      }
+   }
+}
@@ -0,0 +1,112 @@
+namespace Bts.DataStream.Websocket;
+
+using bts.utils;
+
+using Spark.Core;
+using Spark.Core.Json;
+
+using System;
+using System.Diagnostics.CodeAnalysis;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+public class SubscriptionParams(string? query = null) : IEquatable<SubscriptionParams> {
+   static class PropNames {
+      public const string QUERY = "query";
+   }
+
+   // Serializer supports plain string, or an array of lines for convenience
+   [MaybeNull]
+   [JsonPropertyName(PropNames.QUERY)]
+   [JsonConverter(typeof(MultilineStringJsonConverter))]
+   public string? Query { get; set; } = query;
+
+   public bool Equals(SubscriptionParams? other) =>
+      other is not null &&
+      // Not the most elegant equals impl, but it'll work
+      Query.safe_equals(other.Query, (a, b) => a?.ToString() == b?.ToString());
+
+   class SubscriptionParamsConverter : JsonConverter<SubscriptionParams> {
+      public override bool CanConvert(Type typeToConvert) =>
+         typeToConvert == typeof(SubscriptionParams);
+
+      public override SubscriptionParams Read(
+         ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) {
+         if (typeToConvert != typeof(SubscriptionParams)) {
+            throw new ArgumentException($"Unable to parse {typeToConvert}", nameof(typeToConvert));
+         }
+         return read(ref reader);
+      }
+
+      static SubscriptionParams read(ref Utf8JsonReader reader) {
+         return reader.TokenType switch {
+            JsonTokenType.String => StringImpl(ref reader),
+            JsonTokenType.StartArray => ArrayImpl(ref reader),
+            JsonTokenType.StartObject => ObjectImpl(ref reader),
+            _ => throw new ArgumentException(
+               $"Unable to parse {typeof(SubscriptionParams)} from {reader.TokenType}"),
+         };
+
+         static SubscriptionParams StringImpl(ref Utf8JsonReader reader) =>
+            new(reader.GetString()!);
+
+         static SubscriptionParams ArrayImpl(ref Utf8JsonReader reader) {
+            var lines = new List<string>(2);
+            while (reader.Read()) {
+               switch (reader.TokenType) {
+                  case JsonTokenType.String:
+                     lines.Add(reader.GetString()!);
+                     break;
+                  case JsonTokenType.EndArray:
+                     return new("\n".join(lines));
+               }
+            }
+            throw new JsonException(
+               $"Failed to parse {typeof(SubscriptionParams)} (did not reach end of array)");
+         }
+
+         static SubscriptionParams ObjectImpl(ref Utf8JsonReader reader) {
+            var lines = new List<string>(2);
+            while (reader.Read()) {
+               switch (reader.TokenType) {
+                  case JsonTokenType.PropertyName:
+                     var propName = reader.GetString()!;
+                     if (propName == PropNames.QUERY) {
+                        switch (reader.TokenType) {
+                           case JsonTokenType.StartArray:
+                              return ArrayImpl(ref reader);
+                           case JsonTokenType.String:
+                              return StringImpl(ref reader);
+                        }
+                     }
+                     break;
+                  case JsonTokenType.String:
+                     lines.Add(reader.GetString()!);
+                     break;
+                  case JsonTokenType.EndArray:
+                     return new("\n".join(lines));
+               }
+            }
+            throw new JsonException(
+               $"Failed to parse {typeof(SubscriptionParams)} (did not reach end of array)");
+         }
+      }
+
+      public override void Write(
+         Utf8JsonWriter writer, SubscriptionParams value, JsonSerializerOptions options) {
+         var q = value.Query;
+         var lines = q?.Split("\n");
+         if (lines is null || lines.Length < 2) {
+            writer.WriteString(PropNames.QUERY, value.Query);
+            return;
+         }
+         writer.WriteArray(PropNames.QUERY, lines);
+      }
+   }
+
+   public override bool Equals(object? obj) =>
+      Equals(obj as SubscriptionParams);
+
+   public override int GetHashCode() =>
+      Query?.Length ?? typeof(SubscriptionParams).GetHashCode();
+}
@@ -0,0 +1,5 @@
+global using bts.websocket_core;
+
+global using System;
+
+global using System.Collections.Immutable;
@@ -0,0 +1,41 @@
+#nullable enable
+using BCG;
+
+using Spark.Core.Json;
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace Bts.DataStreamCore;
+
+class ViewStreamUpdate {
+   [JsonPropertyName("tableName")]
+   public string? TableName { get; set; }
+
+   [JsonPropertyName("columns")]
+   public List<ColumnInfo>? Columns { get; set; }
+
+   [JsonPropertyName("addedRows")]
+   public List<Dictionary<string, object?>>? AddedRows { get; set; }
+
+   [JsonPropertyName("deletedRows")]
+   public List<Dictionary<string, object?>>? DeletedRows { get; set; }
+
+   public DataPacket ToDataPacket(BlueTable state, bool applyChanges = true) {
+      var schema = new BlueTableSchema([.. Columns!], TableName);
+      var addedRowsTable = new BlueTable(schema);
+      var deletedRowsTable = new BlueTable(schema);
+      if (applyChanges) {
+         state.deleteRows(deletedRowsTable);
+         state.addRows(addedRowsTable);
+      }
+      return new(state, addedRowsTable, deletedRowsTable);
+   }
+
+   public static string ToJson() {
+      return "";
+   }
+}
@@ -0,0 +1,18 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="System.CommandLine" Version="2.0.0-beta4.22272.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Bts.DataStream.Websocket\Bts.DataStream.Websocket.csproj" />
+  </ItemGroup>
+
+</Project>
@@ -0,0 +1,7 @@
+{
+  "host": "localhost",
+  "port": 8080,
+  "scheme": "ws",
+  "default_end_point": "/",
+  "keep_alive_interval_secs": 1
+}
@@ -0,0 +1,76 @@
+using bts.api.core;
+
+using Bts.DataStream.Websocket;
+
+using Google.Protobuf;
+
+using System.CommandLine.Parsing;
+using System.Text.Json;
+
+static WebsocketServerConfig readConfigFile(string path) {
+   using var fs = File.OpenRead(path);
+   using var sr = new StreamReader(fs);
+   return JsonParser.Default.Parse<WebsocketServerConfig>(sr);
+}
+
+static WebsocketServerConfig? readConfigArg(ArgumentResult result) {
+   var path = result.Tokens.Select(t => t.Value).FirstOrDefault() ?? string.Empty;
+   return readConfigFile(path);
+}
+
+static WebsocketServerConfig getDefaultConfig() {
+   const string defaultCfgPath = "DataStreamWebsocketServer.conf";
+   if (File.Exists(defaultCfgPath)) {
+      return readConfigFile(defaultCfgPath);
+   }
+   return new() {
+      Scheme = "http",
+      Host = "localhost",
+      Port = 8080,
+      DefaultEndPoint = "/",
+      KeepAliveIntervalSecs = 1
+   };
+}
+   
+static async Task run(
+   WebsocketServerConfig? wssConfig, string user, string password, string? sparkdConfigSource) {
+   var opts = new JsonSerializerOptions(JsonSerializerDefaults.Web);
+   wssConfig ??= getDefaultConfig();
+   Console.WriteLine("Starting DataStreamWebsocketServer...");
+   var serviceCtx = ServiceContext.create(sparkdConfigSource);
+   await serviceCtx.login(user, password);
+   await Session.Start(wssConfig, opts);
+   // if (sparkdConfigSource is not null && sparkdConfigSource.Length > 9999) {
+   // } else {
+   //    await ChatGptSession.Start();
+   // }
+}
+
+var userOpt = new Option<string>("--user", () => "bts");
+var passOpt = new Option<string>("--password", () => string.Empty);
+var sparkdConfigSourceOpt = new Option<string>(
+   "--sparkd", description: "The sparkd config server url");
+// var bling = new ParseArgument<WebsocketServerConfig?>(parseWsConfig);
+
+// WebsocketServerConfig? parseWsConfig(ArgumentResult result) {
+//    Token t;
+//    TokenType tt;
+//    Symbol s;
+//    throw new NotImplementedException();
+// }
+
+var configOpt = new Option<WebsocketServerConfig?>(
+   "--config", readConfigArg, description: "WebsocketServerConfig file path");
+configOpt.SetDefaultValue(new());
+var rootCommand = new RootCommand("Starts a DataStream Websocket Server");
+rootCommand.AddOption(configOpt);
+rootCommand.AddOption(userOpt);
+rootCommand.AddOption(passOpt);
+rootCommand.SetHandler(run, configOpt, userOpt, passOpt, sparkdConfigSourceOpt);
+
+try {
+   return await rootCommand.InvokeAsync(args);
+} catch (Exception ex) {
+   Console.WriteLine($"Error: {ex}");
+}
+return 1;
@@ -0,0 +1,6 @@
+global using bts.websocket_core;
+global using bts.websocket_core.json_rpc;
+
+global using System.CommandLine;
+
+global using System.Collections.Immutable;
Author	SHA1	Message	Date
John Colvin	c80374579e	fix build: Add a few includes, suppress some werrors Not sure how this slipped through the cracks, but I'm guessing the build broke when we upgraded the cpp compilers (to clang 17 and gcc 13). * Include <cstdint> in a few places * Suppress -Wstringop-overflow in sparkd-gcc-release build * Change const char * param to explicit std::string for proper type deduction in call to 'std::make_tuple'. For some reason, the gcc build was failing with an array-bounds werror (changing the arg fixed it).	2024-03-18 19:14:48 +00:00
John Colvin	81cc0892f2	fix build: Remove version suffix from RuntimeIdentifiers in csprojs They aren't required (nor supported) in dotnet 8	2024-03-18 15:13:01 -04:00
John Colvin	88714bb4b5	cleanup: Remove unnused token in BooleanExpression lex	2024-03-18 15:09:49 -04:00
John Colvin	f39f1784a8	cleanup: Remove 'global.json' file This config file is an artifact leftover from dotnet 6. I'm pretty sure it's useless now.	2024-03-18 15:09:49 -04:00
John Colvin	b7c8e72a07	feat: Add [incremental] MongoCollectionStream	2024-03-18 15:09:27 -04:00
John Colvin	eea4af1f9b	refactor: Impl IDictionary<int, IBlueRow> in BlueTable	2024-03-13 13:43:35 -05:00
John Colvin	6a244fee35	Normalize indentation in MongoDBStream	2024-03-13 13:43:35 -05:00
John Colvin	d6a744e5ab	Add echoDelay param to SimpleTCPServer	2024-03-13 13:43:35 -05:00
John Colvin	6f86b41f02	Add IObservable ViewStream wrapper	2024-03-13 13:43:35 -05:00
John Colvin	faaa0ba8f1	refactor: Rename WebsocketServerConfig proto pkg 'bts.websocket_core' This matches the namespace used in spark_websocket csproj. Eventually, I'd like to use conventional capitalization (TitleCase namespaces/types, etc.), but let's shelf that until we have enough time/energy to do a more comprehensive refactoring.	2024-03-13 13:43:35 -05:00
John Colvin	be97879db0	Add json facilities for DataStream websocket api	2024-03-13 13:43:34 -05:00
John Colvin	b54d839aaf	refactor: Add handy WebsocketExtensions * IsSocketStateOpen * IsClosedProperly	2024-03-13 13:43:34 -05:00
John Colvin	3af79a239a	feat: Add Bts.DataStream.Websocket/Server	2024-03-13 13:43:34 -05:00
John Colvin	d6d5e1d292	Add bones for Bts.DataStreamWebApp.Client	2024-03-13 13:43:33 -05:00
John Colvin	e92e5d5039	Add bones for Bts.DataStreamWebApp.Server	2024-03-13 13:43:33 -05:00
John Colvin	c47226f965	feat: Add JsonRpc types for websocket paradigm	2024-03-13 13:43:33 -05:00
John Colvin	f19f2c7a81	cleanup: Remove empty file (clearly added by accident)	2024-03-13 13:43:33 -05:00
John Colvin	b92fac9e55	Add more descriptive logs (via stdout) during initialization The C++ configure/initialize routines were particularly opaque	2024-03-13 13:43:33 -05:00
John Colvin	a1fe672271	fix: Fix improper 'OfType' linq cast Previously, animations were expressed through polymorphism (derived from the base class CellAnimation), but the new impl uses composition. This 'OfType' call was leftover from the polymorphism implementation, an attempt to linq cast elements of base class (CellAnimation) to BackgroundAnimation.	2024-03-13 13:43:33 -05:00
John Colvin	99d01fd25d	cleanup: Remove static service Locator class It relied on a static singleton 'ServiceContext'. Replace references with a properly scoped (i.e., non-static) ServiceContext	2024-03-13 13:43:32 -05:00
John Colvin	ae1a420d5f	refactor: Reduce code (simplify) in BTS.init Remove the 'args' parameter, since the cmd line can be obtained from Environment.GetCommandLine anyways	2024-03-13 13:43:32 -05:00
John Colvin	a162640b5e	Dispose connections in SimpleTCPServer.Dispose	2024-03-13 13:43:32 -05:00
John Colvin	61db677c2a	improvement: Polish clis in DataStreamSuite Namely, PubSubServer and DataStreamPublisher * Use CommandLineParser (nuget pkg) * Clean up csproj files a bit while we're at it	2024-03-13 13:43:32 -05:00
John Colvin	c1ebb1f7c5	editorconfig: Use standard c# capitalization rules * Use 'PascalCase' for public members (instead of 'snake_case') * Use 'camelCase' for private members (instead of '_snake_case')	2024-03-13 13:43:32 -05:00
John Colvin	96cb88505d	refactor: Change WebsocketServerConfig.port to uint32 It should always be a number between 1-65535	2024-03-13 13:43:32 -05:00
John Colvin	ed31ea8c67	refactor: Add WebsocketClient class Basically an ISubject (I/O) wrapper for IWebsocketConnectionGateway	2024-03-13 13:43:31 -05:00
John Colvin	82e9939343	refactor: Remove nullability constraint in GetValueOrDefault	2024-03-13 13:43:31 -05:00
John Colvin	8021cb49cc	refactor: Use events to avoid circular deps for ws sync/gateway	2024-03-13 13:43:31 -05:00
John Colvin	a7eb58311d	refactor: Let caller specify nullability of T in json parse fn	2024-03-13 13:43:31 -05:00
John Colvin	45ea54bdde	refactor: Reorganize NumericComparer, support all types Get rid of redundant UniversalNumericComparer while we're at it	2024-03-13 13:43:31 -05:00
John Colvin	0266d09e20	docker: Update and clean up Dockerfile * Upgrade dotnet 7 -> 8 * Upgrade clang (13, 15) -> 17 * Upgrade gcc (11, 12) -> 13 * Remove kitware release candidate apt repo (probably shouldn't have been added in the first place). * Install gdb for c++ debugging (VS Code debugger depends on this) * Use explicit release ubuntu:22.04 (not 'latest'). We don't want the distro to automatically upgrade one day, when 'latest' suddenly points to a new release. Upgrades like that need to be done deliberately. * Use more granular RUN cmds to reduce rebuild times. When a Dockerfile is built, the RUN cmds are executed in the order in which they were written (duh!). Checkpoints called "cache layers" are saved for each RUN cmd, so if the Dockerfile is later modified, the image can be rebuilt from the most recent layer that wasn't invalidated by the modifications.	2024-03-13 13:43:31 -05:00
John Colvin	b6fa2bd1c2	cleanup: Remove leftover legacy files	2024-03-13 13:43:30 -05:00
John Colvin	d43fd5bce7	build: Upgrade c# to net8.0	2024-03-13 13:43:30 -05:00
				`@@ -1 +0,0 @@`
				`PYTHONPATH=/workspaces/spark/build/sparkd-debug-clang/src/lib_python_interop;/workspaces/spark/src/lib_python_interop/python_interop_plugins;/workspaces/spark/tools/py`
				`@@ -1 +0,0 @@`
				`r=TimeSeriesStream(ReplayFutureLiveBBOStream("ES"))`