update

backend/routes/subscription_routes.py

@@ -0,0 +1,63 @@
+from flask import Blueprint, request, jsonify
+from datetime import datetime
+from pymongo.errors import DuplicateKeyError
+from database import subscribers_collection
+
+subscription_bp = Blueprint('subscription', __name__)
+
+
+@subscription_bp.route('/api/subscribe', methods=['POST'])
+def subscribe():
+    """Subscribe a user to the newsletter"""
+    data = request.json
+    email = data.get('email', '').strip().lower()
+    
+    if not email or '@' not in email:
+        return jsonify({'error': 'Invalid email address'}), 400
+    
+    try:
+        subscriber_doc = {
+            'email': email,
+            'subscribed_at': datetime.utcnow(),
+            'status': 'active'
+        }
+        
+        # Try to insert, if duplicate key error, subscriber already exists
+        try:
+            subscribers_collection.insert_one(subscriber_doc)
+            return jsonify({'message': 'Successfully subscribed!'}), 201
+        except DuplicateKeyError:
+            # Check if subscriber is active
+            existing = subscribers_collection.find_one({'email': email})
+            if existing and existing.get('status') == 'active':
+                return jsonify({'message': 'Email already subscribed'}), 200
+            else:
+                # Reactivate if previously unsubscribed
+                subscribers_collection.update_one(
+                    {'email': email},
+                    {'$set': {'status': 'active', 'subscribed_at': datetime.utcnow()}}
+                )
+                return jsonify({'message': 'Successfully re-subscribed!'}), 200
+                
+    except Exception as e:
+        return jsonify({'error': str(e)}), 500
+
+
+@subscription_bp.route('/api/unsubscribe', methods=['POST'])
+def unsubscribe():
+    """Unsubscribe a user from the newsletter"""
+    data = request.json
+    email = data.get('email', '').strip().lower()
+    
+    try:
+        result = subscribers_collection.update_one(
+            {'email': email},
+            {'$set': {'status': 'inactive'}}
+        )
+        
+        if result.matched_count > 0:
+            return jsonify({'message': 'Successfully unsubscribed'}), 200
+        else:
+            return jsonify({'error': 'Email not found in subscribers'}), 404
+    except Exception as e:
+        return jsonify({'error': str(e)}), 500