first commit

src/sw.js

@@ -0,0 +1,55 @@
+import { getFiles, setupPrecaching, setupRouting } from 'preact-cli/sw/';
+
+setupRouting();
+setupPrecaching(getFiles());
+
+function wait(ms) {
+    return new Promise(resolve => {
+        setTimeout(resolve, ms);
+    });
+}
+
+const BASE = location.protocol + '//' + location.host
+const PREFIX = "V1"
+const CACHED_FILES = [
+    `${BASE}/sw.js`,
+    `${BASE}/js/app.js`,
+    `${BASE}/css/app.css`,
+    `${BASE}/offline.html`,
+]
+
+self.addEventListener('install', (event) => {
+    self.skipWaiting()
+    event.waitUntil(
+        (async () => {
+            const cache = await caches.open(PREFIX)
+            await cache.addAll(CACHED_FILES)
+        })()
+    )
+    console.log(`${PREFIX} Install`)
+})
+
+self.addEventListener('activate', (event) => {
+    clients.claim()
+    event.waitUntil((async() => {
+        const keys = await caches.keys()
+        await Promise.all(
+            keys.map(key => {
+                if (!key.includes(PREFIX)) {
+                    return caches.delete(key)
+                }
+            })
+        )
+    })())
+    console.log(`${PREFIX} Activate`)
+})
+
+const delay = 1000 * 60 * 60 * 24
+
+console.log(localStorage.getItem('data'))
+
+wait(delay)
+    .then(() => {
+    // do thing
+
+    }).catch(err => console.log(err))