try fix notifications

app.py

@@ -8,6 +8,9 @@ import base64
 from typing import Dict, Any, Tuple, Union
 import sys
 import redis
+import json
+from pywebpush import webpush, WebPushException
+import mysql.connector
 
 from lib.datetime import filter_accounts_next_30_days, filter_accounts_expired
 from lib.reqs import (get_urls, get_user_accounts, add_user_account,
@@ -142,25 +145,60 @@ def proxy_save_subscription():
     except requests.exceptions.RequestException as e:
         return jsonify({"error": str(e)}), 502
 
+def get_db_connection():
+    # This is a simplified version for demonstration.
+    # In a real application, you would use a connection pool.
+    return mysql.connector.connect(
+        host=app.config["DBHOST"],
+        user=app.config["DBUSER"],
+        password=app.config["DBPASS"],
+        database=app.config["DATABASE"],
+        port=app.config["DBPORT"],
+    )
+
+def get_push_subscriptions():
+    conn = get_db_connection()
+    cursor = conn.cursor(dictionary=True)
+    cursor.execute("SELECT * FROM push_subscriptions")
+    subscriptions = cursor.fetchall()
+    cursor.close()
+    conn.close()
+    return subscriptions
+
+def send_notification(subscription_info, message_body):
+    try:
+        webpush(
+            subscription_info=subscription_info,
+            data=message_body,
+            vapid_private_key=app.config["VAPID_PRIVATE_KEY"],
+            vapid_claims={"sub": app.config["VAPID_CLAIM_EMAIL"]},
+        )
+    except WebPushException as ex:
+        print(f"Web push error: {ex}")
+        # You might want to remove the subscription if it's invalid
+        if ex.response and ex.response.status_code == 410:
+            print("Subscription is no longer valid, removing from DB.")
+            # Add logic to remove the subscription from your database
+
 @app.route('/send-test-notification', methods=['POST'])
-def send_test_notification_proxy():
-    """Proxies the request to send a test notification to the backend."""
+def send_test_notification():
+    """Sends a test push notification to all users."""
     if not session.get("logged_in"):
         return jsonify({'error': 'Unauthorized'}), 401
 
-    backend_url = f"{app.config['BASE_URL']}/send-test-notification"
-    credentials = base64.b64decode(session["auth_credentials"]).decode()
-    username, password = credentials.split(":", 1)
+    subscriptions = get_push_subscriptions()
+    if not subscriptions:
+        return jsonify({"message": "No push subscriptions found."}), 404
 
-    try:
-        response = requests.post(
-            backend_url,
-            auth=requests.auth.HTTPBasicAuth(username, password),
-            json={"message": "Ktv Test"}
-        )
-        return Response(response.content, status=response.status_code, mimetype=response.headers['Content-Type'])
-    except requests.exceptions.RequestException as e:
-        return jsonify({"error": str(e)}), 502
+    message_body = json.dumps({"title": "KTVManager", "body": "Ktv Test"})
+
+    for sub in subscriptions:
+        try:
+            send_notification(json.loads(sub['subscription_json']), message_body)
+        except Exception as e:
+            print(f"Error sending notification to subscription ID {sub.get('id', 'N/A')}: {e}")
+
+    return jsonify({"message": f"Test notification sent to {len(subscriptions)} subscription(s)."})
 
 @app.route("/home")
 @cache.cached(timeout=60, key_prefix=make_cache_key)