Initial commit

frontend/public/sw.js

@@ -0,0 +1,46 @@
+const CACHE_NAME = 'schichtplaner-v1';
+const ASSETS_TO_CACHE = [
+  '/',
+  '/index.html',
+  '/manifest.json'
+];
+
+self.addEventListener('install', (event) => {
+  event.waitUntil(
+    caches.open(CACHE_NAME).then((cache) => {
+      return cache.addAll(ASSETS_TO_CACHE);
+    })
+  );
+  self.skipWaiting();
+});
+
+self.addEventListener('activate', (event) => {
+  event.waitUntil(
+    caches.keys().then((keys) => {
+      return Promise.all(
+        keys.map((key) => {
+          if (key !== CACHE_NAME) {
+            return caches.delete(key);
+          }
+        })
+      );
+    })
+  );
+  self.clients.claim();
+});
+
+self.addEventListener('fetch', (event) => {
+  if (event.request.method !== 'GET' || event.request.url.includes('/api/')) {
+    return;
+  }
+  event.respondWith(
+    caches.match(event.request).then((cachedResponse) => {
+      if (cachedResponse) {
+        return cachedResponse;
+      }
+      return fetch(event.request).catch(() => {
+        return caches.match('/index.html');
+      });
+    })
+  );
+});