feat: add pwa support (#5530)

* feat: add pwa support

* fix: deepsource warning

* fix: format warning

* fix: lint error

---------

Co-authored-by: sharpsalat <deniska.xrenov23@yandex.ru>

apps/nextjs/eslint.config.js

@@ -10,4 +10,21 @@ export default [
   ...baseConfig,
   ...reactConfig,
   ...nextjsConfig,
+  {
+    files: ["public/sw.js"],
+    languageOptions: {
+      globals: {
+        self: "readonly",
+        clients: "readonly",
+        skipWaiting: "readonly",
+        importScripts: "readonly",
+        caches: "readonly",
+        fetch: "readonly",
+      },
+    },
+    rules: {
+      "@typescript-eslint/no-unsafe-call": "off",
+      "@typescript-eslint/no-unsafe-member-access": "off",
+    },
+  },
 ];

apps/nextjs/next.config.ts

@@ -42,9 +42,18 @@ const nextConfig: NextConfig = {
       },
     ],
   },
+  // skipcq: JS-0116
   // eslint-disable-next-line @typescript-eslint/require-await,no-restricted-syntax
   async headers() {
     return [
+      {
+        source: "/sw.js",
+        headers: [
+          { key: "Content-Type", value: "application/javascript; charset=utf-8" },
+          { key: "Cache-Control", value: "no-cache, no-store, must-revalidate" },
+          { key: "Content-Security-Policy", value: "default-src 'self'; script-src 'self'" },
+        ],
+      },
       {
         source: "/(.*)", // Apply CSP to all routes
         headers: [

apps/nextjs/public/sw.js

@@ -0,0 +1,7 @@
+self.addEventListener("install", () => {
+  self.skipWaiting();
+});
+
+self.addEventListener("activate", (event) => {
+  event.waitUntil(self.clients.claim());
+});

apps/nextjs/src/app/[locale]/layout.tsx

@@ -26,6 +26,7 @@ import { isLocaleRTL, isLocaleSupported } from "@homarr/translation";
 import { Analytics } from "~/components/layout/analytics";
 import { CrowdinLiveTranslation } from "~/components/layout/crowdin-live-translation";
 import { SearchEngineOptimization } from "~/components/layout/search-engine-optimization";
+import { ServiceWorkerRegistration } from "~/components/layout/service-worker-registration";
 import { getCurrentColorSchemeAsync } from "~/theme/color-scheme";
 import { DayJsLoader } from "./_client-providers/dayjs-loader";
 import { JotaiProvider } from "./_client-providers/jotai";
@@ -142,6 +143,7 @@ export default async function Layout(props: {
       <body className={["font-sans", fontSans.variable].join(" ")}>
         <StackedProvider>
           <Notifications />
+          <ServiceWorkerRegistration />
           {props.children}
         </StackedProvider>
       </body>

apps/nextjs/src/components/layout/service-worker-registration.tsx

@@ -0,0 +1,14 @@
+"use client";
+
+import { useEffect } from "react";
+
+export const ServiceWorkerRegistration = () => {
+  useEffect(() => {
+    if (!("serviceWorker" in navigator)) return;
+    navigator.serviceWorker.register("/sw.js", { scope: "/", updateViaCache: "none" }).catch((error) => {
+      console.error("Service worker registration failed", error);
+    });
+  }, []);
+
+  return null;
+};