https://pharmacysyria.com/assets/backend/libs/firebase/firebase-init.js

1"use strict";
2
3class FirebaseAppManager {
4    constructor(config) {
5        if (!config || typeof config !== 'object') {
6            throw new Error('Firebase config object is required');
7        }
8
9        this.firebaseConfig = config;
10        this.app = null;
11        this.messaging = null;
12    }
13
14    initialize() {
15        try {
16            if (firebase.apps.length === 0) {
17                this.app = firebase.initializeApp(this.firebaseConfig);
18                // '✅ Firebase initialized';
19            } else {
20                this.app = firebase.app();
21                // '⚠️ Firebase already initialized';
22            }
23
24            if (firebase.messaging.isSupported && firebase.messaging.isSupported()) {
25                this.messaging = firebase.messaging();
26                // '📩 Firebase messaging initialized';
27            }
28        } catch (e) {
29            console.warn('🔥 Firebase initialization failed:', e);
30        }
31    }
32
33    getApp() {
34        return this.app;
35    }
36
37    getMessaging() {
38        return this.messaging;
39    }
40}
41
42let firebaseConfigurationConfig = $('#Firebase_Configuration_Config');
43const firebaseManager = new FirebaseAppManager({
44    apiKey: firebaseConfigurationConfig.data('api-key'),
45    authDomain: firebaseConfigurationConfig.data('auth-domain'),
46    projectId: firebaseConfigurationConfig.data('project-id'),
47    storageBucket: firebaseConfigurationConfig.data('storage-bucket'),
48    messagingSenderId: firebaseConfigurationConfig.data('messaging-sender-id'),
49    appId: firebaseConfigurationConfig.data('app-id'),
50    measurementId: firebaseConfigurationConfig.data('measurement-id')
51});
52
53firebaseManager.initialize();
54
55const app = firebaseManager.getApp();
56const messaging = firebaseManager.getMessaging();
57
58
59function requestNotificationPermission() {
60    return Notification.requestPermission().then(permission => {
61        if (permission === 'granted') {
62            return true;
63        } else {
64            console.warn('Notification permission denied.');
65            return false;
66        }
67    });
68}
69
70function subscribeToNotificationTopics(topics) {
71    requestNotificationPermission().then(permissionGranted => {
72        if (permissionGranted) {
73            messaging.getToken().then(token => {
74                topics.forEach(topic => {
75                    subscribeTokenToBackend(token, topic);
76                });
77            }).catch(error => {
78                console.warn('Error getting token:', error);
79            });
80        }
81    });
82}
83
84function subscribeTokenToBackend(token, topic) {
85    fetch(firebaseConfigurationConfig.data('route'), {
86        method: 'POST',
87        headers: {
88            'Content-Type': 'application/json',
89            'X-CSRF-TOKEN': firebaseConfigurationConfig.data('csrf-token')
90        },
91        body: JSON.stringify({
92            token: token,
93            topic: topic
94        })
95    }).then(response => {
96        if (response.status < 200 || response.status >= 400) {
97            return response.text().then(text => {
98                throw new Error(`Error subscribing to topic: ${response.status} - ${text}`);
99            });
100        }
101    }).catch(error => {
102        console.warn('Subscription error:', error);
103    });
104}
105
106function displayNotification(notification) {
107    const options = {
108        body: notification.body,
109        icon: $('#Firebase_Configuration_Config').data('favicon'),
110    };
111    new Notification(notification.title, options);
112}
113
114
115messaging.onMessage(function (payload) {
116    if (payload?.data?.type?.includes('product_restock')) {
117        productRestockStockLimitStatus(payload.data);
118    }
119
120    if (payload.data) {
121        displayNotification(payload.data);
122    }
123});
124
125// Deletes the browser's FCM registration token so the server stops delivering
126// push notifications to this device after the current user logs out.
127// Called by logout link interceptors before navigating away.
128function clearFcmToken() {
129    if (!messaging) return Promise.resolve();
130    return messaging.deleteToken().catch(function (e) {
131        console.warn('[FCM] deleteToken failed:', e);
132    });
133}