# Session Changelog - January 1, 2026

## Production Setup Session

### What Was Done

1. **Backend Setup**
   - Copied working `server.ts` from Job-Info-Test
   - Added `redis-cache.ts` for Valkey/Redis caching
   - Fixed static file path to serve from `frontend/public`
   - Fast job loading: returns first 40 jobs instantly, then full list on poll

2. **Frontend Setup**
   - Copied working frontend from Job-Info-Test to `frontend/public/`
   - Simplified token validation at startup:
     - Check PocketBase session valid
     - Check Graph token in localStorage
     - If either missing → redirect to signin
   - Removed redundant token refresh loops
   - Added localStorage storage for Graph token in signin.html

3. **Authentication Flow**
   - PocketBase OAuth with Microsoft provider
   - Graph token stored in localStorage after signin
   - Both tokens checked once at page load
   - No repeated token validation during app usage

4. **Systemd Service**
   - Created `/etc/systemd/system/job-info-prod.service`
   - Runs on port 3005
   - Auto-restarts on failure

5. **Git Repository**
   - Initialized and pushed to: https://gitea.ccllc.pro/Cardoza_Construction/Job-Info-Prod.git
   - Branch: main

### Key Files

| File | Purpose |
|------|---------|
| `backend/src/index.ts` | Main Hono server with all endpoints |
| `backend/src/redis-cache.ts` | Redis/Valkey cache helpers |
| `frontend/public/index.html` | Main app UI |
| `frontend/public/signin.html` | OAuth signin page (purple styling) |
| `frontend/public/auth.js` | PocketBase auth bootstrap |

### Endpoints

- `GET /` - Serve frontend
- `GET /version` - App version
- `GET /api/health` - Health check
- `GET /api/jobs-all` - All jobs (first 40 fast, then full)
- `GET /api/jobs` - Paginated jobs
- `GET /api/job-files` - SharePoint files via Graph API
- `GET /api/job-file-content` - File content/download
- `GET /api/job-file-pdf` - PDF proxy
- `POST /log-change` - Log changes

### Configuration

- Port: 3005
- PocketBase: https://pocketbase.ccllc.pro
- Collection: pbc_1407612689
- Redis/Valkey: localhost:6379

### Known Limitations

- Graph tokens expire after ~60 minutes (Microsoft limitation)
- No automatic Graph token refresh (would require direct OAuth flow)
- User must re-signin when Graph token expires

### Next Steps

- Consider implementing direct Microsoft OAuth for refresh token support
- Add error boundaries for better UX on token expiry
- Performance monitoring