CodeRabbit caught this and it is right: comparing the wall clock at one instant treats zones that merely coincide right now as the same one. America/New_York and America/Lima hold the same offset all winter, so a panel set to the wrong one of the two ticked the step in January and then ran an hour off from March -- a silent false pass, which is the failure the whole check exists to prevent. Same shape as the dateStyle problem in the previous commit: a comparison coarser than it looks. Three instants now, all of which must agree: now, and mid-January and mid-July of the current year. Those sit either side of DST in both hemispheres, so only zones that agree year-round match. Toronto still matches New York, which is correct -- either renders the same times. Two tests. A static one asserts the comparison samples more than the current instant, since reverting to `[now]` looks like a simplification. And a table pinning which pairs must count as the same zone: aliases and same-rule zones equal, seasonal coincidences (New York/Lima, Phoenix/Los_Angeles, Sydney/Guadalcanal) not. That table mirrors the algorithm rather than executing the shipped JS -- there is no JS runtime here and the repo has no JS test infra -- so it records the verdicts the browser code has to reach, and the static guard keeps the two aligned. Mutation-checked: reverting to a single instant fails the static guard. Also documented what the city test compares. CodeRabbit read it as always failing, on the grounds that the label differs between Tampa and Seattle. It does, but timezone_step() returns the opening tag only, so the comparison is over data-done and data-tz and the label is not in it. The assertion is left as an equality over the whole tag, which is stronger than checking the two attributes by name; the docstring now says so. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01STMbQE4YctTacQXfbYqKuW
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
├── manifest.json # PWA manifest
├── plugins_manager.js
├── icons/ # PWA / touch icons
├── js/ # Alpine, htmx, app shell, widgets, utils
└── vendor/ # codemirror, fontawesome
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:
- Local: http://localhost:5000
- Network: http://:5000
Configuration
The web interface reads configuration from:
config/config.json- Main configurationconfig/config_secrets.json- API keys and secrets
API Documentation
The V3 API is mounted at /api/v3/ (app.py:144). For the complete
list and request/response formats, see
docs/REST_API_REFERENCE.md. Quick
reference for the most common endpoints:
Configuration
GET /api/v3/config/main- Get main configurationPOST /api/v3/config/main- Save main configurationGET /api/v3/config/secrets- Get secrets configurationPOST /api/v3/config/raw/main- Save raw main config (Config Editor)POST /api/v3/config/raw/secrets- Save raw secrets
Display & System Control
GET /api/v3/system/status- System statusPOST /api/v3/system/action- Control display (action body:start_display,stop_display,restart_display_service,restart_web_service,git_pull,reboot_system,shutdown_system,enable_autostart,disable_autostart)GET /api/v3/display/current- Current display frameGET /api/v3/display/on-demand/status- On-demand statusPOST /api/v3/display/on-demand/start- Trigger on-demand displayPOST /api/v3/display/on-demand/stop- Clear on-demand
Plugins
GET /api/v3/plugins/installed- List installed pluginsGET /api/v3/plugins/config?plugin_id=<id>- Get plugin configPOST /api/v3/plugins/config- Update plugin configurationGET /api/v3/plugins/schema?plugin_id=<id>- Get plugin schemaPOST /api/v3/plugins/toggle- Enable/disable pluginPOST /api/v3/plugins/install- Install from registryPOST /api/v3/plugins/install-from-url- Install from GitHub URLPOST /api/v3/plugins/uninstall- Uninstall pluginPOST /api/v3/plugins/update- Update plugin
Plugin Store
GET /api/v3/plugins/store/list- List available registry pluginsGET /api/v3/plugins/store/github-status- GitHub authentication statusPOST /api/v3/plugins/store/refresh- Refresh registry from GitHub
Real-time Streams (SSE)
SSE stream endpoints are defined directly on the Flask app
(app.py:607-619 — includes the CSRF exemption and rate-limit hookup
alongside the three route definitions), not on the api_v3 blueprint:
GET /api/v3/stream/stats- System statistics streamGET /api/v3/stream/display- Display preview streamGET /api/v3/stream/logs- Service logs stream
Development
When making changes to the web interface:
- Edit files in this directory
- Test changes by running
python3 web_interface/start.py - 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