06/05 Optimize app: add Plaid reset sync

app/routes/transactions.py

@@ -222,6 +222,51 @@ def edit(id):
                            title='Edit Transaction')
 
 
+@transactions_bp.route('/bulk-action', methods=['POST'])
+@login_required
+def bulk_action():
+    """AJAX endpoint: delete or set-category for a list of transaction IDs."""
+    data = request.get_json(silent=True) or {}
+    ids = data.get('ids', [])
+    action = data.get('action', '')
+
+    if not ids or not isinstance(ids, list):
+        return jsonify({'ok': False, 'error': 'No IDs provided'}), 400
+
+    # Validate all IDs are integers
+    try:
+        ids = [int(i) for i in ids]
+    except (ValueError, TypeError):
+        return jsonify({'ok': False, 'error': 'Invalid IDs'}), 400
+
+    txns = Transaction.query.filter(Transaction.id.in_(ids)).all()
+    if not txns:
+        return jsonify({'ok': False, 'error': 'No transactions found'}), 404
+
+    if action == 'delete':
+        affected_accounts = {t.account_id for t in txns}
+        for txn in txns:
+            db.session.delete(txn)
+        db.session.commit()
+        for acct_id in affected_accounts:
+            if acct_id:
+                calc_balance(acct_id)
+        return jsonify({'ok': True, 'deleted': len(txns)})
+
+    elif action == 'set_category':
+        cat_raw = data.get('category_id')
+        cat_id = int(cat_raw) if cat_raw else None
+        # Validate category exists
+        if cat_id and not Category.query.get(cat_id):
+            return jsonify({'ok': False, 'error': 'Invalid category'}), 400
+        for txn in txns:
+            txn.category_id = cat_id
+        db.session.commit()
+        return jsonify({'ok': True, 'updated': len(txns)})
+
+    return jsonify({'ok': False, 'error': 'Unknown action'}), 400
+
+
 @transactions_bp.route('/<int:id>/set-category', methods=['POST'])
 @login_required
 def set_category(id):