117 lines
2.8 KiB
JavaScript
117 lines
2.8 KiB
JavaScript
/*
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* The app shell cache and push handling.
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*
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* A new worker deliberately does NOT take over on its own: assets are served
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* cache-first, so swapping them under a running page can hand it chunks from
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* two different builds. It waits until the page asks, which it does after
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* telling the reader a new version is ready.
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*/
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const CACHE_NAME = "k-mood-v2"
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const APP_SHELL = "/"
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const STATIC_ASSETS = [
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APP_SHELL,
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"/manifest.json",
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"/logo192.png",
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"/logo512.png",
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"/favicon.ico",
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]
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self.addEventListener("install", (event) => {
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event.waitUntil(
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caches.open(CACHE_NAME).then((cache) => cache.addAll(STATIC_ASSETS))
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)
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})
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self.addEventListener("activate", (event) => {
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event.waitUntil(
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caches
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.keys()
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.then((keys) =>
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Promise.all(
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keys
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.filter((key) => key !== CACHE_NAME)
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.map((key) => caches.delete(key))
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)
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)
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.then(() => self.clients.claim())
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)
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})
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self.addEventListener("message", (event) => {
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if (event.data?.type === "SKIP_WAITING") self.skipWaiting()
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})
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function cache(request, response) {
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if (!response.ok) return response
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const copy = response.clone()
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caches
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.open(CACHE_NAME)
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.then((store) => store.put(request, copy))
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.catch(() => {})
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return response
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}
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self.addEventListener("fetch", (event) => {
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const { request } = event
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const url = new URL(request.url)
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// The journal is never cached, wherever the server lives.
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if (url.pathname.startsWith("/api/")) return
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if (request.method !== "GET") return
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if (url.origin !== self.location.origin) return
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if (request.mode === "navigate") {
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event.respondWith(
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fetch(request)
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.then((response) => cache(request, response))
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.catch(() => caches.match(APP_SHELL))
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)
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return
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}
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event.respondWith(
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caches.match(request).then((cached) => {
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const fresh = fetch(request)
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.then((response) => cache(request, response))
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.catch(() => cached)
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return cached ?? fresh
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})
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)
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})
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self.addEventListener("push", (event) => {
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const data = event.data?.json() ?? {}
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event.waitUntil(
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self.registration.showNotification(data.title || "K-Mood", {
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body: data.body || "How are you feeling?",
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icon: "/logo192.png",
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badge: "/logo192.png",
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data: { url: data.url || APP_SHELL },
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})
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)
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})
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self.addEventListener("notificationclick", (event) => {
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event.notification.close()
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const target = event.notification.data?.url || APP_SHELL
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event.waitUntil(
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self.clients
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.matchAll({ type: "window", includeUncontrolled: true })
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.then((windows) => {
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for (const client of windows) {
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if (client.url.includes(target) && "focus" in client) {
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return client.focus()
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}
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}
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return self.clients.openWindow(target)
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})
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)
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})
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