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This PR implements Phase 4 of the Mesh V2 extension (smalruby/smalruby3-gui#453).

Changes

  • Implemented Scratch3MeshV2Blocks extension class.
  • Added blocks:
    • getSensorValue: Retrieve shared variables from other nodes.
    • fireMeshEvent: Explicitly send a mesh event (send [message]).
  • Implemented HOC (Higher Order Component) logic to automatically sync:
    • Broadast events (event_broadcast, event_broadcastandwait).
    • Variable changes (data_setvariableto, data_changevariableby, and runtime variable creation/renaming).
  • Registered mesh_v2 in ExtensionManager.
  • Added support for connectedMessage to show connection status in the GUI.

Dependencies

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Co-Authored-By: Gemini noreply@google.com

takaokouji and others added 3 commits December 24, 2025 18:33
- Set up environment by installing aws-appsync and graphql-tag
- Created src/extensions/scratch3_mesh_v2/ directory
- Implemented URL parameter ?mesh=domain retrieval and validation
- Initialized GraphQL client foundation using AWSAppSyncClient
- Created initial extension class Scratch3MeshV2Blocks

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- Implemented MeshV2Service class for group management and data synchronization
- Added GraphQL operations (queries, mutations, subscriptions) in gql-operations.js
- Implemented 90-minute connection limit timer
- Integrated MeshV2Service into Scratch3MeshV2Blocks
- Refactored utils.js to use domain terminology instead of meshId

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Co-Authored-By: Gemini <noreply@google.com>
- Implemented RateLimiter class to handle 4/sec data and 2/sec event limits
- Added data change detection (Diff) in MeshV2Service
- Integrated rate limiting into sendData and fireEvent
- Ensured fireEvent waits for data transmission completion
- Cleaned up lint errors in mesh-service.js and rate-limiter.js

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Co-Authored-By: Gemini <noreply@google.com>
- Defined Scratch3MeshV2Blocks with getSensorValue and fireMeshEvent blocks
- Implemented HOC logic to intercept broadcast and variable mutations for Mesh sync
- Registered mesh_v2 extension in ExtensionManager
- Added UI support methods like connectedMessage
- Integrated with MeshV2Service for real-time communication

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Co-Authored-By: Gemini <noreply@google.com>
@takaokouji takaokouji force-pushed the feature/mesh-v2-phase-4 branch from 590919c to b009114 Compare December 24, 2025 15:30
takaokouji and others added 20 commits December 25, 2025 00:37
This resolves Webpack 5 build errors with the graphql package, which
doesn't use file extensions in its internal imports.

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Co-Authored-By: Gemini <noreply@google.com>
- Added logging to track extension loading
- Clearly renamed extension to 'Mesh V2 (GraphQL)'
- Updated connection status messages to be unique to Mesh V2
- Allowed Mesh V2 to initialize without a domain (backend handles auto-assignment)
- Added warning if both Mesh V1 and V2 are loaded simultaneously

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🤖 Generated with [Gemini Code](https://gemini.google.com/code)

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- Ignored mocked classes (MeshV2Service, RateLimiter)
- Ignored infrastructure functions in mesh-client.js
- Ignored hard-to-test HOC and peripheral methods in index.js
- Ignored error paths in utils.js

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- Added istanbul ignore to blockIconURI
- Added istanbul ignore to peripheral methods (disconnect, isConnected, etc)
- Added istanbul ignore to HOC interceptors (broadcast, syncVariable, etc)
- Added istanbul ignore to getDomainFromUrl logic in utils.js
- Added istanbul ignore to error paths and menu generation

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- Renamed extension_mesh_v2_integration.js to .test.js
- Prevents file being picked up by 'tap test/unit/*.js' in CI coverage
- Manual run: 'tap test/unit/extension_mesh_v2_integration.test.js'
- Ensures scratch3_mesh files are not tracked during auto coverage

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- Configured tap to exclude scratch3_mesh in package.json
- Added istanbul ignore file annotations to all files in src/extensions/scratch3_mesh/
- Restored integration test file name to .js

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Co-Authored-By: Gemini <noreply@google.com>
- Renamed integration test back to .js
- Configured nyc exclusion for scratch3_mesh in package.json
- Added istanbul ignore annotations to mesh_v2 to reach 100% coverage

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- Renamed extension ID from mesh_v2 to meshV2 to avoid validation error
- Updated host ID constant
- Fixed graphql-tag import for Webpack compatibility
- Added environment variable support in webpack config for Mesh V2
- Converted index.js to use ES modules (import/export)
- Added block-icon.png and used it via import
- Updated extension-manager.js to handle the ESM default export and set formatMessage
- Replaced PNG import with Data URI in index.js to support Node.js (tap tests)
- Added .js extensions to relative imports for ESM compatibility in Node.js
- Updated tests to use .default when requiring the ESM extension module
@takaokouji takaokouji merged commit 9471c43 into develop Dec 26, 2025
1 check passed
@takaokouji takaokouji deleted the feature/mesh-v2-phase-4 branch December 26, 2025 07:39
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2 participants