Update app.py

app.py

@@ -6,12 +6,13 @@ import numpy as np
 app = Flask(__name__)
 CORS(app)
 
-# Initialize QRCodeDetector
 qr_detector = cv2.QRCodeDetector()
-
-# Simple in-memory state for previous frame ROI (for change detection)
 prev_timer_roi = None
-CHANGE_THRESHOLD = 500  # You might need to tune this
+CHANGE_THRESHOLD = 500  # Tune this based on test results
+
+@app.route('/')
+def home():
+    return jsonify({"message": "Timer-aware QR Scanner API is running"}), 200
 
 def is_timer_running(current_roi):
     global prev_timer_roi
@@ -23,30 +24,30 @@ def is_timer_running(current_roi):
     gray = cv2.cvtColor(diff, cv2.COLOR_BGR2GRAY)
     _, thresh = cv2.threshold(gray, 25, 255, cv2.THRESH_BINARY)
     changed_pixels = cv2.countNonZero(thresh)
-
     prev_timer_roi = current_roi
     return changed_pixels > CHANGE_THRESHOLD
 
 @app.route('/scan', methods=['POST'])
-def scan_qr_when_timer_active():
-    file = request.files.get('image')
-    if not file:
+def scan_qr_if_timer_active():
+    if 'image' not in request.files:
         return jsonify({'error': 'No image uploaded'}), 400
 
+    file = request.files['image']
     img_bytes = file.read()
     npimg = np.frombuffer(img_bytes, np.uint8)
     frame = cv2.imdecode(npimg, cv2.IMREAD_COLOR)
 
-    # You may need to fine-tune this ROI for your use case
-    timer_roi = frame[130:160, 360:430]  # adjust based on your timer position
+    # Adjust this ROI for timer location (y1:y2, x1:x2)
+    timer_roi = frame[130:160, 360:430]
 
     if is_timer_running(timer_roi):
         data, points, _ = qr_detector.detectAndDecode(frame)
         if data:
-            return jsonify({'qr_data': data})
-        return jsonify({'message': 'QR not detected'}), 204
+            return jsonify({'qr_data': data}), 200
+        else:
+            return jsonify({'message': 'QR code not detected'}), 204
     else:
         return jsonify({'message': 'Timer not running'}), 204
 
 if __name__ == '__main__':
-    app.run(host='0.0.0.0', port=7860)
+    app.run(host='0.0.0.0', port=7860)