Files
LEDMatrix/web_interface
Chuck 1f0de9b354 fix(starlark): fix Python 3.13 importlib.reload() incompatibility (#258)
* fix(starlark): fix Python 3.13 importlib.reload() incompatibility

In Python 3.13, importlib.reload() raises ModuleNotFoundError for modules
loaded via spec_from_file_location when they aren't on sys.path, because
_bootstrap._find_spec() can no longer resolve them by name.

Replace the reload-on-cache-hit pattern in _get_tronbyte_repository_class()
and _get_pixlet_renderer_class() with a simple return of the cached class —
the reload was only useful for dev-time iteration and is unnecessary in
production (the service restarts clean on each deploy).

Also broaden the exception catch in upload_starlark_app() from
(ValueError, OSError, IOError) to Exception so that any unexpected error
(ImportError, ModuleNotFoundError, etc.) returns a proper JSON response
instead of an unhandled Flask 500.

Fixes: "Install failed: spec not found for the module 'tronbyte_repository'"

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix(starlark): use targeted exception handlers in upload_starlark_app()

Replace the broad `except Exception` catch-all with specific handlers:
- (OSError, IOError) for temp file creation/save failures
- ImportError for module loading failures (_get_pixlet_renderer_class)
- Exception as final catch-all that logs without leaking internals

All handlers use `err` (not unused `e`) in both the log message and
the JSON response body.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Chuck <chuck@example.com>
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-02-23 16:37:48 -05:00
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LED Matrix Web Interface V3

Modern, production web interface for controlling the LED Matrix display.

Overview

This directory contains the active V3 web interface with the following features:

  • Real-time display preview via Server-Sent Events (SSE)
  • Plugin management and configuration
  • System monitoring and logs
  • Modern, responsive UI
  • RESTful API

Directory Structure

web_interface/
├── app.py                    # Main Flask application
├── start.py                  # Startup script
├── run.sh                    # Shell runner script
├── requirements.txt          # Python dependencies
├── blueprints/               # Flask blueprints
│   ├── api_v3.py            # API endpoints
│   └── pages_v3.py          # Page routes
├── templates/                # HTML templates
│   └── v3/
│       ├── base.html
│       ├── index.html
│       └── partials/
└── static/                   # CSS/JS assets
    └── v3/
        ├── app.css
        └── app.js

Running the Web Interface

Standalone (Development)

From the project root:

python3 web_interface/start.py

Or using the shell script:

./web_interface/run.sh

As a Service (Production)

The web interface can run as a systemd service that starts automatically based on the web_display_autostart configuration setting:

sudo systemctl start ledmatrix-web
sudo systemctl enable ledmatrix-web  # Start on boot

Accessing the Interface

Once running, access the web interface at:

Configuration

The web interface reads configuration from:

  • config/config.json - Main configuration
  • config/secrets.json - API keys and secrets

API Documentation

The V3 API is available at /api/v3/ with the following endpoints:

Configuration

  • GET /api/v3/config/main - Get main configuration
  • POST /api/v3/config/main - Save main configuration
  • GET /api/v3/config/secrets - Get secrets configuration
  • POST /api/v3/config/secrets - Save secrets configuration

Display Control

  • POST /api/v3/display/start - Start display service
  • POST /api/v3/display/stop - Stop display service
  • POST /api/v3/display/restart - Restart display service
  • GET /api/v3/display/status - Get display service status

Plugins

  • GET /api/v3/plugins - List installed plugins
  • GET /api/v3/plugins/<id> - Get plugin details
  • POST /api/v3/plugins/<id>/config - Update plugin configuration
  • GET /api/v3/plugins/<id>/enable - Enable plugin
  • GET /api/v3/plugins/<id>/disable - Disable plugin

Plugin Store

  • GET /api/v3/store/plugins - List available plugins
  • POST /api/v3/store/install/<id> - Install plugin
  • POST /api/v3/store/uninstall/<id> - Uninstall plugin
  • POST /api/v3/store/update/<id> - Update plugin

Real-time Streams (SSE)

  • GET /api/v3/stream/stats - System statistics stream
  • GET /api/v3/stream/display - Display preview stream
  • GET /api/v3/stream/logs - Service logs stream

Development

When making changes to the web interface:

  1. Edit files in this directory
  2. Test changes by running python3 web_interface/start.py
  3. Restart the service if running: sudo systemctl restart ledmatrix-web

Notes

  • Templates and static files use the v3/ prefix to allow for future versions
  • The interface uses Flask blueprints for modular organization
  • SSE streams provide real-time updates without polling