Initial commit

backup/fina-1/app/static/sw.js

@@ -0,0 +1,89 @@
+const CACHE_NAME = 'fina-v1';
+const urlsToCache = [
+  '/',
+  '/static/js/app.js',
+  '/static/js/pwa.js',
+  '/static/manifest.json',
+  'https://cdn.tailwindcss.com',
+  'https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap',
+  'https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:wght,FILL@100..700,0..1&display=swap'
+];
+
+// Install event - cache resources
+self.addEventListener('install', event => {
+  event.waitUntil(
+    caches.open(CACHE_NAME)
+      .then(cache => cache.addAll(urlsToCache))
+      .then(() => self.skipWaiting())
+  );
+});
+
+// Activate event - clean up old caches
+self.addEventListener('activate', event => {
+  event.waitUntil(
+    caches.keys().then(cacheNames => {
+      return Promise.all(
+        cacheNames.map(cacheName => {
+          if (cacheName !== CACHE_NAME) {
+            return caches.delete(cacheName);
+          }
+        })
+      );
+    }).then(() => self.clients.claim())
+  );
+});
+
+// Fetch event - serve from cache, fallback to network
+self.addEventListener('fetch', event => {
+  // Skip non-GET requests
+  if (event.request.method !== 'GET') {
+    return;
+  }
+
+  event.respondWith(
+    caches.match(event.request)
+      .then(response => {
+        // Cache hit - return response
+        if (response) {
+          return response;
+        }
+
+        // Clone the request
+        const fetchRequest = event.request.clone();
+
+        return fetch(fetchRequest).then(response => {
+          // Check if valid response
+          if (!response || response.status !== 200 || response.type !== 'basic') {
+            return response;
+          }
+
+          // Clone the response
+          const responseToCache = response.clone();
+
+          caches.open(CACHE_NAME)
+            .then(cache => {
+              cache.put(event.request, responseToCache);
+            });
+
+          return response;
+        }).catch(() => {
+          // Return offline page or fallback
+          return new Response('You are offline', {
+            headers: { 'Content-Type': 'text/plain' }
+          });
+        });
+      })
+  );
+});
+
+// Background sync for offline expense creation
+self.addEventListener('sync', event => {
+  if (event.tag === 'sync-expenses') {
+    event.waitUntil(syncExpenses());
+  }
+});
+
+async function syncExpenses() {
+  // Implement offline expense sync logic
+  console.log('Syncing expenses...');
+}