Jared Vititoe becee84821 perf: Add TTL-based caching to UserModel to prevent stale data ...

Cache optimization with automatic expiration:

1. New Cache Structure:
   - Changed from simple array to TTL-aware structure
   - Each entry: ['data' => ..., 'expires' => timestamp]
   - 5-minute (300s) TTL prevents indefinite stale data

2. Helper Methods:
   - getCached($key): Returns data if not expired, null otherwise
   - setCached($key, $data): Stores with expiration timestamp
   - invalidateCache($userId, $username): Manual cache clearing

3. Updated All Cache Access Points:
   - syncUserFromAuthelia() - User sync from Authelia
   - getSystemUser() - System user for daemon operations
   - getUserById() - User lookup by ID
   - getUserByUsername() - User lookup by username

Benefits:
- Prevents memory leaks from unlimited cache growth
- Ensures user data refreshes periodically
- Maintains performance benefits of caching
- Automatic cleanup of expired entries

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

2026-01-09 16:27:04 -05:00

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