BarangaySystem/plans/ServiceWorkerPlan.md

Full Implementation Plan

Phase 1: Service Worker Implementation

Files to create/modify:

• resources/js/service-worker.js - Main service worker file
• resources/js/app.js - Register service worker
• public/sw.js - Entry point for SW registration (if needed)

Service Worker Features:

1. Precaching static assets using workbox precacheAndRoute
2. Stale-while-revalidate strategy for pages with cache name page-stale-while-revalidate-cache
3. Cache-first strategy for /RequestData/File/ blobs with cache name request-data-cache
4. Background sync with BackgroundSyncPlugin
5. Message passing to clients using clients.postMessage()

Phase 2: OPFS Implementation

Files to create:

• resources/js/composables/useOPFS.js - OPFS file management
• Update resources/js/composables/useFileBlobCache.js to use OPFS

OPFS Features:

1. Save blobs to OPFS using navigator.storage.getDirectory().getFileHandle()
2. Load blobs from OPFS for faster access
3. Handle hashkey-to-blob mapping
4. Fallback to server fetch if blob not in OPFS

Phase 3: Pinia + SSE Sync (Replace Web Workers)

Files to create/modify:

• resources/js/stores/syncState.js - New store for sync state
• Update resources/js/composables/useSyncData.js
• Implement Server-Sent Events listener

Features:

1. Server-Sent Events (SSE) for real-time updates
2. Pinia state management for cache status
3. Interval-based polling as fallback if SSE not available
4. Cache update notifications via Pinia

Phase 4: Hashkey-Based URL Caching

Files to create:

• resources/js/composables/useHashKeyCache.js

Features:

1. URL format support: /page--h:HASHKEY and /page--e:PAYLOAD
2. Cache lookup by hashkey in URL
3. Hashkey-to-data mapping with proper cache invalidation

Phase 5: RequestData Pattern Migration

Files to create:

• resources/js/utils/RequestData.js

Features:

1. Method chaining: .url().type().data().success().error().go()
2. Hashkey support for caching
3. fromVarCache option for cache-first behavior

Implementation Steps:

1. Create service worker file with workbox strategies
2. Register SW in app.js
3. Test basic caching works
4. Implement OPFS composable
5. Update file blob cache to use OPFS
6. Add SSE listener for real-time updates
7. Create hashkey URL pattern support
8. Migrate RequestData pattern to new fetch wrapper

Estimated Timeline:

• Phase 1 (Service Worker): 2-3 hours
• Phase 2 (OPFS): 1-2 hours
• Phase 3 (Pinia + SSE): 2-3 hours
• Phase 4 (Hashkey URL): 1 hour
• Phase 5 (RequestData): 1-2 hours

Total: ~8-10 hours of implementation time

Are you ready to proceed with the implementation? Please toggle to Act mode and I'll start building these features.