Files
IdP/apps/frontend/lib/firebase-push.ts
2026-07-07 13:58:01 +03:00

113 lines
3.4 KiB
TypeScript

'use client';
import { initializeApp, getApps, type FirebaseApp } from 'firebase/app';
import { getMessaging, getToken, isSupported, onMessage, type Messaging } from 'firebase/messaging';
import { apiFetch } from '@/lib/api';
import type { FirebasePublicConfig } from '@/lib/firebase-config';
const SW_PATH = '/firebase-messaging-sw.js';
const REGISTERED_TOKEN_KEY = 'lendry_fcm_token';
let messagingInstance: Messaging | null = null;
function getFirebaseApp(config: FirebasePublicConfig): FirebaseApp {
const existing = getApps()[0];
if (existing) return existing;
return initializeApp({
apiKey: config.apiKey,
authDomain: `${config.projectId}.firebaseapp.com`,
projectId: config.projectId,
messagingSenderId: config.messagingSenderId,
appId: config.appId
});
}
async function ensureServiceWorker() {
if (!('serviceWorker' in navigator)) return null;
const registration = await navigator.serviceWorker.register(SW_PATH, { scope: '/' });
await navigator.serviceWorker.ready;
return registration;
}
export async function registerFirebasePush(authToken: string, config: FirebasePublicConfig) {
if (typeof window === 'undefined') return null;
if (!config.enabled) return null;
const supported = await isSupported();
if (!supported) return null;
if (!('Notification' in window)) return null;
const permission = Notification.permission === 'granted'
? 'granted'
: await Notification.requestPermission();
if (permission !== 'granted') return null;
const registration = await ensureServiceWorker();
if (!registration) return null;
const app = getFirebaseApp(config);
messagingInstance = getMessaging(app);
const fcmToken = await getToken(messagingInstance, {
vapidKey: config.vapidKey,
serviceWorkerRegistration: registration
});
if (!fcmToken) return null;
const previousToken = window.localStorage.getItem(REGISTERED_TOKEN_KEY);
if (previousToken && previousToken !== fcmToken) {
try {
await apiFetch('/notifications/push/register', {
method: 'DELETE',
body: JSON.stringify({ token: previousToken })
}, authToken);
} catch {
// ignore stale unregister errors
}
}
await apiFetch('/notifications/push/register', {
method: 'POST',
body: JSON.stringify({
token: fcmToken,
platform: 'WEB',
deviceLabel: navigator.userAgent.slice(0, 120)
})
}, authToken);
window.localStorage.setItem(REGISTERED_TOKEN_KEY, fcmToken);
return fcmToken;
}
export function subscribeFirebaseForegroundMessages(listener: (payload: { title: string; message: string; data?: Record<string, string> }) => void) {
if (!messagingInstance) return () => undefined;
return onMessage(messagingInstance, (payload) => {
listener({
title: payload.notification?.title ?? payload.data?.title ?? 'Уведомление',
message: payload.notification?.body ?? payload.data?.message ?? '',
data: payload.data
});
});
}
export async function unregisterFirebasePush(authToken: string | null) {
const stored = typeof window !== 'undefined' ? window.localStorage.getItem(REGISTERED_TOKEN_KEY) : null;
if (!stored || !authToken) return;
try {
await apiFetch('/notifications/push/register', {
method: 'DELETE',
body: JSON.stringify({ token: stored })
}, authToken);
} catch {
// ignore logout cleanup errors
} finally {
window.localStorage.removeItem(REGISTERED_TOKEN_KEY);
}
}