Add web push notification system for user engagement and updates

Implement a web push notification system, including service worker integration, user subscription management, and an admin interface for sending broadcast messages. Replit-Commit-Author: Agent Replit-Commit-Session-Id: 23852c00-4779-460a-9e0c-d09fee4b6c92 Replit-Commit-Checkpoint-Type: full_checkpoint Replit-Commit-Event-Id: f585829f-898b-492f-82a5-11f4a76c87fb Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/f209e72a-0939-48fa-84fc-57854de71967/23852c00-4779-460a-9e0c-d09fee4b6c92/ICRgny1 Replit-Helium-Checkpoint-Created: true
2026-03-07 15:16:12 +00:00
parent 8e7dc999f0
commit f6478a7663
11 changed files with 423 additions and 1 deletions
@@ -19,6 +19,7 @@ import ImpressumPage from "@/pages/impressum";
 import DatenschutzPage from "@/pages/datenschutz";
 import KontaktPage from "@/pages/kontakt";
 import AdminGalleryPage from "@/pages/admin-gallery";
+import AdminPushPage from "@/pages/admin-push";
 import CookieConsent from "@/components/cookie-consent";

 function ScrollToTop() {
@@ -49,6 +50,7 @@ function Router() {
        <Route path="/datenschutz" component={DatenschutzPage} />
        <Route path="/kontakt" component={KontaktPage} />
        <Route path="/admin/gallery" component={AdminGalleryPage} />
+        <Route path="/admin/push" component={AdminPushPage} />
        <Route component={NotFound} />
      </Switch>
    </div>
@@ -3,6 +3,7 @@ import { Menu, X, Search } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import { useState, useRef, useEffect } from "react";
 import folxLogo from "@assets/folx_MT_poz_b_1772296729169.png";
+import PushNotificationBell from "./push-notification-bell";

 const navItems = [
  { label: "Start", href: "/" },
@@ -63,6 +64,7 @@ export default function Header() {
          </nav>

          <div className="flex items-center gap-2">
+            <PushNotificationBell />
            {searchOpen ? (
              <form onSubmit={handleSearch} className="flex items-center gap-1" data-testid="form-header-search">
                <input
@@ -0,0 +1,126 @@
+import { useState, useEffect, useCallback } from "react";
+import { Bell, BellRing } from "lucide-react";
+import { Button } from "@/components/ui/button";
+import { useToast } from "@/hooks/use-toast";
+
+function urlBase64ToUint8Array(base64String: string) {
+  const padding = "=".repeat((4 - (base64String.length % 4)) % 4);
+  const base64 = (base64String + padding).replace(/-/g, "+").replace(/_/g, "/");
+  const rawData = window.atob(base64);
+  const outputArray = new Uint8Array(rawData.length);
+  for (let i = 0; i < rawData.length; ++i) {
+    outputArray[i] = rawData.charCodeAt(i);
+  }
+  return outputArray;
+}
+
+export default function PushNotificationBell() {
+  const [isSubscribed, setIsSubscribed] = useState(false);
+  const [isLoading, setIsLoading] = useState(false);
+  const [supported, setSupported] = useState(false);
+  const { toast } = useToast();
+
+  const checkSubscription = useCallback(async () => {
+    if (!("serviceWorker" in navigator) || !("PushManager" in window)) return;
+    setSupported(true);
+    try {
+      const reg = await navigator.serviceWorker.getRegistration("/sw.js");
+      if (reg) {
+        const sub = await reg.pushManager.getSubscription();
+        setIsSubscribed(!!sub);
+      } else {
+        setIsSubscribed(false);
+      }
+    } catch {
+      setIsSubscribed(false);
+    }
+  }, []);
+
+  useEffect(() => {
+    checkSubscription();
+  }, [checkSubscription]);
+
+  const subscribe = async () => {
+    setIsLoading(true);
+    try {
+      const keyRes = await fetch("/api/push/vapid-key");
+      const { publicKey } = await keyRes.json();
+      if (!publicKey) throw new Error("VAPID key not configured");
+
+      const reg = await navigator.serviceWorker.register("/sw.js");
+      await navigator.serviceWorker.ready;
+
+      const sub = await reg.pushManager.subscribe({
+        userVisibleOnly: true,
+        applicationServerKey: urlBase64ToUint8Array(publicKey),
+      });
+
+      const subJson = sub.toJSON();
+      const res = await fetch("/api/push/subscribe", {
+        method: "POST",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({
+          endpoint: subJson.endpoint,
+          keys: subJson.keys,
+        }),
+      });
+      if (!res.ok) throw new Error("Subscription save failed");
+
+      setIsSubscribed(true);
+      toast({ title: "Benachrichtigungen aktiviert", description: "Sie werden über neue Inhalte informiert." });
+    } catch (err: any) {
+      if (Notification.permission === "denied") {
+        toast({ title: "Benachrichtigungen blockiert", description: "Bitte erlauben Sie Benachrichtigungen in Ihren Browsereinstellungen.", variant: "destructive" });
+      } else {
+        toast({ title: "Fehler", description: "Benachrichtigungen konnten nicht aktiviert werden.", variant: "destructive" });
+      }
+    } finally {
+      setIsLoading(false);
+    }
+  };
+
+  const unsubscribe = async () => {
+    setIsLoading(true);
+    try {
+      const reg = await navigator.serviceWorker.getRegistration("/sw.js");
+      if (reg) {
+        const sub = await reg.pushManager.getSubscription();
+        if (sub) {
+          const res = await fetch("/api/push/unsubscribe", {
+            method: "POST",
+            headers: { "Content-Type": "application/json" },
+            body: JSON.stringify({ endpoint: sub.endpoint }),
+          });
+          if (!res.ok) throw new Error("Unsubscribe failed");
+          await sub.unsubscribe();
+        }
+      }
+      setIsSubscribed(false);
+      toast({ title: "Benachrichtigungen deaktiviert", description: "Sie erhalten keine weiteren Benachrichtigungen." });
+    } catch {
+      toast({ title: "Fehler", description: "Abmeldung fehlgeschlagen.", variant: "destructive" });
+    } finally {
+      setIsLoading(false);
+    }
+  };
+
+  if (!supported) return null;
+
+  return (
+    <Button
+      variant="ghost"
+      size="icon"
+      className="h-8 w-8 relative"
+      onClick={isSubscribed ? unsubscribe : subscribe}
+      disabled={isLoading}
+      title={isSubscribed ? "Benachrichtigungen deaktivieren" : "Benachrichtigungen aktivieren"}
+      data-testid="button-push-notifications"
+    >
+      {isSubscribed ? (
+        <BellRing className="w-4 h-4 text-primary" />
+      ) : (
+        <Bell className="w-4 h-4" />
+      )}
+    </Button>
+  );
+}
@@ -0,0 +1,122 @@
+import { useState } from "react";
+import { useQuery, useMutation } from "@tanstack/react-query";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { Textarea } from "@/components/ui/textarea";
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { useToast } from "@/hooks/use-toast";
+import { Send, Bell, Users, ArrowLeft } from "lucide-react";
+import { Link } from "wouter";
+import { apiRequest } from "@/lib/queryClient";
+
+export default function AdminPushPage() {
+  const [title, setTitle] = useState("");
+  const [body, setBody] = useState("");
+  const [url, setUrl] = useState("");
+  const { toast } = useToast();
+
+  const { data: countData } = useQuery<{ count: number }>({
+    queryKey: ["/api/push/count"],
+    refetchInterval: 10000,
+  });
+
+  const sendMutation = useMutation({
+    mutationFn: async () => {
+      const res = await apiRequest("POST", "/api/admin/push/send", { title, body, url: url || "/" });
+      return res.json();
+    },
+    onSuccess: (data: any) => {
+      toast({
+        title: "Push gesendet",
+        description: `Erfolgreich: ${data.sent}, Fehlgeschlagen: ${data.failed} von ${data.total} Abonnenten`,
+      });
+      setTitle("");
+      setBody("");
+      setUrl("");
+    },
+    onError: () => {
+      toast({ title: "Fehler", description: "Push-Nachricht konnte nicht gesendet werden.", variant: "destructive" });
+    },
+  });
+
+  return (
+    <div className="min-h-screen bg-background">
+      <div className="max-w-2xl mx-auto px-4 py-8">
+        <div className="flex items-center gap-3 mb-6">
+          <Link href="/">
+            <Button variant="ghost" size="icon" data-testid="button-back-home">
+              <ArrowLeft className="w-5 h-5" />
+            </Button>
+          </Link>
+          <Bell className="w-6 h-6 text-primary" />
+          <h1 className="text-2xl font-bold text-foreground" data-testid="text-admin-push-title">Push-Benachrichtigungen</h1>
+        </div>
+
+        <Card className="mb-6">
+          <CardHeader>
+            <CardTitle className="flex items-center gap-2 text-lg">
+              <Users className="w-5 h-5" />
+              Abonnenten
+            </CardTitle>
+          </CardHeader>
+          <CardContent>
+            <p className="text-3xl font-bold text-primary" data-testid="text-subscriber-count">
+              {countData?.count ?? 0}
+            </p>
+            <p className="text-sm text-muted-foreground mt-1">aktive Push-Abonnenten</p>
+          </CardContent>
+        </Card>
+
+        <Card>
+          <CardHeader>
+            <CardTitle className="flex items-center gap-2 text-lg">
+              <Send className="w-5 h-5" />
+              Neue Benachrichtigung senden
+            </CardTitle>
+          </CardHeader>
+          <CardContent>
+            <div className="space-y-4">
+              <div>
+                <label className="text-sm font-medium text-foreground mb-1 block">Titel</label>
+                <Input
+                  value={title}
+                  onChange={(e) => setTitle(e.target.value)}
+                  placeholder="z.B. Neuer Artikel auf FOLX TV"
+                  data-testid="input-push-title"
+                />
+              </div>
+              <div>
+                <label className="text-sm font-medium text-foreground mb-1 block">Nachricht</label>
+                <Textarea
+                  value={body}
+                  onChange={(e) => setBody(e.target.value)}
+                  placeholder="z.B. Lesen Sie jetzt unseren neuesten Beitrag..."
+                  rows={3}
+                  data-testid="input-push-body"
+                />
+              </div>
+              <div>
+                <label className="text-sm font-medium text-foreground mb-1 block">Link (optional)</label>
+                <Input
+                  value={url}
+                  onChange={(e) => setUrl(e.target.value)}
+                  placeholder="z.B. /article/mein-artikel-slug"
+                  data-testid="input-push-url"
+                />
+                <p className="text-xs text-muted-foreground mt-1">Leer lassen für Startseite</p>
+              </div>
+              <Button
+                onClick={() => sendMutation.mutate()}
+                disabled={!title.trim() || !body.trim() || sendMutation.isPending}
+                className="w-full"
+                data-testid="button-send-push"
+              >
+                {sendMutation.isPending ? "Wird gesendet..." : `An ${countData?.count ?? 0} Abonnenten senden`}
+              </Button>
+            </div>
+          </CardContent>
+        </Card>
+      </div>
+    </div>
+  );
+}