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refactor(pwa): replace custom service workers with Vite PWA plugin and centralize offline page

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Remove hand-written sw.js, offline.html, and manifest.json from todo/skilltree/zitare web apps
in favor of the Workbox-based service worker generated by @vite-pwa/sveltekit. This fixes an
issue where the custom SW could get stuck serving the offline fallback page even when the server
was reachable. Also extracts the duplicated offline page (~80 lines each across 19 apps) into a
shared OfflinePage component in @manacore/shared-ui with 3 props (appName, offlineMessage,
accentColor), reducing each app's offline route to an 8-line wrapper.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Till JS 2026-03-22 18:16:43 +01:00
parent 93a7c90f4f
commit 9bdb997394
33 changed files with 262 additions and 2023 deletions
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99
apps/context/apps/web/src/routes/offline/+page.svelte
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@ -1,96 +1,9 @@
<script lang="ts">
import { onMount } from 'svelte';
let isOnline = $state(false);
onMount(() => {
isOnline = navigator.onLine;
const handleOnline = () => {
isOnline = true;
setTimeout(() => {
window.location.href = '/';
}, 1000);
};
const handleOffline = () => {
isOnline = false;
};
window.addEventListener('online', handleOnline);
window.addEventListener('offline', handleOffline);
return () => {
window.removeEventListener('online', handleOnline);
window.removeEventListener('offline', handleOffline);
};
});
import { OfflinePage } from '@manacore/shared-ui';
</script>
<svelte:head>
<title>Offline - Context</title>
</svelte:head>
<div class="min-h-screen bg-slate-900 flex items-center justify-center px-4">
<div class="text-center max-w-md">
<div class="mb-8">
<svg
class="w-24 h-24 mx-auto text-slate-500"
fill="none"
stroke="currentColor"
viewBox="0 0 24 24"
>
<path
stroke-linecap="round"
stroke-linejoin="round"
stroke-width="1.5"
d="M18.364 5.636a9 9 0 010 12.728m0 0l-2.829-2.829m2.829 2.829L21 21M15.536 8.464a5 5 0 010 7.072m0 0l-2.829-2.829m-4.243 2.829a5 5 0 01-.354-7.072L8.95 7.636m1.414 5.657L7.535 16.12m8.485 0a5 5 0 01-7.07 0"
/>
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M3 3l18 18" />
</svg>
</div>
<h1 class="text-2xl font-bold text-white mb-4">
{isOnline ? 'Verbindung wiederhergestellt!' : 'Du bist offline'}
</h1>
<p class="text-slate-400 mb-8">
{#if isOnline}
Du wirst gleich weitergeleitet...
{:else}
Einige Funktionen sind offline nicht verfügbar. Bitte überprüfe deine Internetverbindung.
{/if}
</p>
{#if !isOnline}
<div class="space-y-4">
<a
href="/"
class="inline-flex items-center justify-center px-6 py-3 bg-sky-600 hover:bg-sky-700 text-white font-medium rounded-lg transition-colors"
>
Zur Startseite
</a>
<button
onclick={() => window.location.reload()}
class="block w-full px-6 py-3 text-slate-400 hover:text-white transition-colors"
>
Erneut versuchen
</button>
</div>
{:else}
<div class="flex items-center justify-center text-green-400">
<svg class="w-5 h-5 mr-2 animate-spin" fill="none" viewBox="0 0 24 24">
<circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4"
></circle>
<path
class="opacity-75"
fill="currentColor"
d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"
></path>
</svg>
Weiterleitung...
</div>
{/if}
</div>
</div>
<OfflinePage
appName="Context"
offlineMessage="Einige Funktionen sind offline nicht verfügbar. Bitte überprüfe deine Internetverbindung."
accentColor="#0284c7"
/>