PWA improvements

push-service.js

@@ -0,0 +1,124 @@
+const webpush = require('web-push');
+
+// VAPID Keys (sollten in Umgebungsvariablen gespeichert werden)
+const vapidKeys = {
+    publicKey: 'BJmNVx0C3XeVxeKGTP9c-Z4HcuZNmdk6QdiLocZgCmb-miCS0ESFO3W2TvJlRhhNAShV63pWA5p36BTVSetyTds',
+    privateKey: 'HBdRCtmZUAzsWpVjZ2LDaoWliIPHldAb5ExAt8bvDeg'
+};
+
+// Configure web-push
+webpush.setVapidDetails(
+    'mailto:ninjacross@example.com',
+    vapidKeys.publicKey,
+    vapidKeys.privateKey
+);
+
+class PushService {
+    constructor() {
+        this.subscriptions = new Map(); // In production: use database
+    }
+
+    // Subscribe user to push notifications
+    subscribe(userId, subscription) {
+        this.subscriptions.set(userId, subscription);
+        console.log(`User ${userId} subscribed to push notifications`);
+    }
+
+    // Unsubscribe user from push notifications
+    unsubscribe(userId) {
+        this.subscriptions.delete(userId);
+        console.log(`User ${userId} unsubscribed from push notifications`);
+    }
+
+    // Send push notification to specific user
+    async sendToUser(userId, payload) {
+        const subscription = this.subscriptions.get(userId);
+        if (!subscription) {
+            console.log(`No subscription found for user ${userId}`);
+            return false;
+        }
+
+        try {
+            await webpush.sendNotification(subscription, JSON.stringify(payload));
+            console.log(`Push notification sent to user ${userId}`);
+            return true;
+        } catch (error) {
+            console.error(`Error sending push notification to user ${userId}:`, error);
+            
+            // If subscription is invalid, remove it
+            if (error.statusCode === 410) {
+                this.unsubscribe(userId);
+            }
+            return false;
+        }
+    }
+
+    // Send push notification to all subscribed users
+    async sendToAll(payload) {
+        const results = [];
+        for (const [userId, subscription] of this.subscriptions) {
+            const result = await this.sendToUser(userId, payload);
+            results.push({ userId, success: result });
+        }
+        return results;
+    }
+
+    // Send achievement notification
+    async sendAchievementNotification(userId, achievementName) {
+        const payload = {
+            title: '🏆 Neues Achievement!',
+            body: `Du hast "${achievementName}" erreicht!`,
+            icon: '/pictures/icon-192.png',
+            badge: '/pictures/icon-192.png',
+            data: {
+                type: 'achievement',
+                achievement: achievementName,
+                timestamp: Date.now()
+            },
+            actions: [
+                {
+                    action: 'view',
+                    title: 'Dashboard öffnen'
+                }
+            ]
+        };
+
+        return await this.sendToUser(userId, payload);
+    }
+
+    // Send best time notification
+    async sendBestTimeNotification(userId, timeType, locationName) {
+        const payload = {
+            title: `🏁 ${timeType} Bestzeit!`,
+            body: `Du hast die beste Zeit in ${locationName} erreicht!`,
+            icon: '/pictures/icon-192.png',
+            badge: '/pictures/icon-192.png',
+            data: {
+                type: 'best_time',
+                timeType: timeType,
+                location: locationName,
+                timestamp: Date.now()
+            },
+            actions: [
+                {
+                    action: 'view',
+                    title: 'Dashboard öffnen'
+                }
+            ]
+        };
+
+        return await this.sendToUser(userId, payload);
+    }
+
+    // Get subscription count
+    getSubscriptionCount() {
+        return this.subscriptions.size;
+    }
+
+    // Get all user IDs with subscriptions
+    getSubscribedUsers() {
+        return Array.from(this.subscriptions.keys());
+    }
+}
+
+module.exports = new PushService();