add push settings

apps/frontend/public/firebase-messaging-sw.js

@@ -0,0 +1,72 @@
+/* eslint-disable no-undef */
+importScripts('https://www.gstatic.com/firebasejs/11.6.0/firebase-app-compat.js');
+importScripts('https://www.gstatic.com/firebasejs/11.6.0/firebase-messaging-compat.js');
+
+const API_PREFIX = '/idp-api';
+
+async function loadPublicSettings() {
+  const response = await fetch(`${API_PREFIX}/settings/public`, { credentials: 'same-origin' });
+  if (!response.ok) {
+    throw new Error('Не удалось загрузить публичные настройки Firebase');
+  }
+  const payload = await response.json();
+  const map = Object.fromEntries((payload.settings ?? []).map((item) => [item.key, item.value]));
+  return map;
+}
+
+function isEnabled(value) {
+  return ['true', '1', 'yes'].includes(String(value ?? '').trim().toLowerCase());
+}
+
+async function initFirebaseMessaging() {
+  const settings = await loadPublicSettings();
+  if (!isEnabled(settings.FIREBASE_PUSH_ENABLED)) return;
+
+  const projectId = settings.FIREBASE_PROJECT_ID?.trim();
+  const apiKey = settings.FIREBASE_WEB_API_KEY?.trim();
+  const appId = settings.FIREBASE_WEB_APP_ID?.trim();
+  const messagingSenderId = settings.FIREBASE_WEB_MESSAGING_SENDER_ID?.trim();
+
+  if (!projectId || !apiKey || !appId || !messagingSenderId) return;
+
+  firebase.initializeApp({
+    apiKey,
+    authDomain: `${projectId}.firebaseapp.com`,
+    projectId,
+    messagingSenderId,
+    appId
+  });
+
+  const messaging = firebase.messaging();
+  messaging.onBackgroundMessage((payload) => {
+    const title = payload.notification?.title || payload.data?.title || 'Уведомление';
+    const options = {
+      body: payload.notification?.body || payload.data?.message || '',
+      data: payload.data ?? {}
+    };
+    self.registration.showNotification(title, options);
+  });
+}
+
+self.addEventListener('install', (event) => {
+  event.waitUntil(self.skipWaiting());
+});
+
+self.addEventListener('activate', (event) => {
+  event.waitUntil(self.clients.claim());
+});
+
+self.addEventListener('notificationclick', (event) => {
+  event.notification.close();
+  event.waitUntil(
+    self.clients.matchAll({ type: 'window', includeUncontrolled: true }).then((clients) => {
+      const existing = clients.find((client) => 'focus' in client);
+      if (existing) {
+        return existing.focus();
+      }
+      return self.clients.openWindow('/');
+    })
+  );
+});
+
+initFirebaseMessaging().catch(() => undefined);