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haos-hacs-immich-album-watcher/plans/phase-5-haos-server-sync.md
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Add HAOS-Server sync for optional centralized management (Phase 5)
Enable the HAOS integration to optionally connect to the standalone
Immich Watcher server for config sync and event reporting.

Server-side:
- New /api/sync/* endpoints: GET trackers, POST template render,
  POST event report
- API key auth via X-API-Key header (accepts JWT access tokens)

Integration-side:
- New sync.py: ServerSyncClient with graceful error handling
  (all methods return defaults on connection failure)
- Options flow: optional server_url and server_api_key fields
  with connection validation
- Coordinator: fire-and-forget event reporting to server when
  album changes are detected
- Translations: en.json and ru.json updated with new fields

The connection is fully additive -- the integration works identically
without a server URL configured. Server failures never break HA.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-19 14:10:29 +03:00

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# Phase 5: HAOS-Server Sync (Optional)
**Status**: In progress
**Parent**: [primary-plan.md](primary-plan.md)
---
## Goal
Allow the HAOS integration to optionally connect to the standalone server, enabling:
- Syncing tracker configurations from server to HA
- Using server-managed templates for notifications
- Centralized management via the web UI while HA provides entities/automations
The connection is **additive** -- the integration works standalone without a server.
---
## Tasks
### 1. Add server URL to HA config flow `[ ]`
- Add optional `server_url` field to hub options flow
- Add optional `server_api_key` field (JWT token or API key)
- Validate connection on save
### 2. Server sync service `[ ]`
- New `sync.py` module in integration
- `async_sync_from_server()`: Fetch tracker configs from server API
- Map server trackers to HA album subentries
- Store server connection state in hub data
### 3. Server API endpoint for HA sync `[ ]`
- `GET /api/sync/trackers` -- Returns tracker configs formatted for HA consumption
- `GET /api/sync/templates/{id}/render` -- Render template with provided context
- Auth via API key header (simpler than JWT for machine-to-machine)
### 4. Bidirectional event reporting `[ ]`
- HA integration reports detected events back to server
- `POST /api/sync/events` -- HA pushes event data to server for logging
- Server dashboard shows events from both standalone polling and HA
---
## Acceptance Criteria
- [ ] Integration works identically without server URL configured
- [ ] With server URL, tracker configs can be synced
- [ ] Events detected by HA are visible in server dashboard
- [ ] Server connection failure doesn't break HA integration