Update app.py

app.py

@@ -4,12 +4,16 @@ import threading
 
 app = Flask(__name__)
 
-# Timer function
-def start_timer(seconds, callback):
+# Global variable to store the message
+message = ""
+
+# Timer function to run in a background thread
+def start_timer(seconds):
+    global message
     for remaining in range(seconds, 0, -1):
         time.sleep(1)  # Wait for 1 second
-        callback(f"{remaining} seconds remaining...")
-    callback("Time's up!")
+        message = f"{remaining} seconds remaining..."
+    message = "Time's up!"
 
 @app.route('/')
 def index():
@@ -17,16 +21,20 @@ def index():
 
 @app.route('/start_timer', methods=['POST'])
 def start_timer_route():
-    seconds = int(request.form['seconds'])
-    
-    # Callback function to send updates back to the frontend
-    def callback(message):
-        app.jinja_env.globals['message'] = message  # Update the message globally
-    
-    # Start timer in a separate thread to avoid blocking
-    threading.Thread(target=start_timer, args=(seconds, callback)).start()
-    
-    return jsonify({"message": "Timer started"})
+    try:
+        seconds = int(request.form['seconds'])
+        
+        # Start the timer in a new thread
+        timer_thread = threading.Thread(target=start_timer, args=(seconds,))
+        timer_thread.start()
+        
+        return jsonify({"message": "Timer started"})
+    except Exception as e:
+        return jsonify({"error": str(e)}), 400
+
+@app.route('/get_timer', methods=['GET'])
+def get_timer():
+    return jsonify({"message": message})
 
 if __name__ == '__main__':
-    app.run(debug=True)
+    app.run(debug=True, threaded=True)