Add service worker message handlers

src/services/database.service.ts

@@ -171,24 +171,85 @@ export class Database {
     }
   }
 
+  // ============================================
+  // SERVICE WORKER MESSAGE HANDLERS
+  // ============================================
+  private async handleDatabaseRequest(request: any): Promise<void> {
+    const { id, action, payload } = request;
+    
+    try {
+      let result;
+      
+      switch (action) {
+        case 'GET_OBJECT':
+          result = await this.getObject(payload.storeName, payload.key);
+          break;
+        
+        case 'GET_MULTIPLE_OBJECTS':
+          result = await this.sendMessageToWorker('GET_MULTIPLE_OBJECTS', payload);
+          break;
+        
+        case 'GET_ALL_OBJECTS':
+          result = await this.sendMessageToWorker('GET_ALL_OBJECTS', payload);
+          break;
+        
+        case 'GET_ALL_OBJECTS_WITH_FILTER':
+          result = await this.sendMessageToWorker('GET_ALL_OBJECTS_WITH_FILTER', payload);
+          break;
+        
+        default:
+          throw new Error(`Unknown database action: ${action}`);
+      }
+      
+      if (this.serviceWorkerRegistration?.active) {
+        this.serviceWorkerRegistration.active.postMessage({
+          type: 'DB_RESPONSE',
+          id,
+          result
+        });
+      }
+    } catch (error: any) {
+      console.error('[Database] Error handling database request:', error);
+      
+      if (this.serviceWorkerRegistration?.active) {
+        this.serviceWorkerRegistration.active.postMessage({
+          type: 'DB_ERROR',
+          id,
+          error: error.message || String(error)
+        });
+      }
+    }
+  }
+
   private async handleServiceWorkerMessage(message: any) {
     switch (message.type) {
       case 'TO_DOWNLOAD':
         await this.handleDownloadList(message.data);
         break;
+      case 'DIFFS_TO_CREATE':
+        await this.handleDiffsToCreate(message.data);
+        break;
       default:
         console.warn('Unknown message type received from service worker:', message);
     }
   }
 
+  private async handleDiffsToCreate(diffs: any[]): Promise<void> {
+    console.log(`[Database] Creating ${diffs.length} diffs from Service Worker scan`);
+    try {
+      await this.saveDiffs(diffs);
+      console.log('[Database] Diffs created successfully');
+    } catch (error) {
+      console.error('[Database] Error creating diffs:', error);
+    }
+  }
+
   private async handleDownloadList(downloadList: string[]): Promise<void> {
-    // Download the missing data
     let requestedStateId: string[] = [];
     const service = await Services.getInstance();
     for (const hash of downloadList) {
       const diff = await service.getDiffByValue(hash);
       if (!diff) {
-        // This should never happen
         console.warn(`Missing a diff for hash ${hash}`);
         continue;
       }
@@ -198,22 +259,15 @@ export class Database {
       try {
         const valueBytes = await service.fetchValueFromStorage(hash);
         if (valueBytes) {
-          // Save data to db
           const blob = new Blob([valueBytes], { type: 'application/octet-stream' });
           await service.saveBlobToDb(hash, blob);
           document.dispatchEvent(
             new CustomEvent('newDataReceived', {
-              detail: {
-                processId,
-                stateId,
-                hash,
-              },
+              detail: { processId, stateId, hash },
             }),
           );
         } else {
-          // We first request the data from managers
           console.log('Request data from managers of the process');
-          // get the diff from db
           if (!requestedStateId.includes(stateId)) {
             await service.requestDataFromPeers(processId, [stateId], [roles]);
             requestedStateId.push(stateId);