Fix performance issue for users with many orders

src/allmende_payment_system/cli.py

@@ -81,8 +81,13 @@ def import_csv(filepath: str):
         lambda: defaultdict(lambda: Order(user_id=1))
     )
 
-    for row in rows:
+    for i, row in enumerate(rows, start=2):
         transaction_type = row["typ"].lower()
+        if transaction_type == "einkauf foodcoop":
+            print(
+                "Skipping 'Einkauf Foodcoop' transaction as it's not relevant for the payment system."
+            )
+            continue
         if transaction_type not in [
             "essen",
             "essen kind",
@@ -90,8 +95,9 @@ def import_csv(filepath: str):
             "einkauf",
             "auszahlung",
         ]:
-            # TODO: Handle other types
-            continue
+            raise ValueError(
+                f"Skipping row {i} with unknown transaction type: '{transaction_type}'"
+            )
 
         # find or create account for "Partei/Konto"
         account_name = row["partei_konto"]
@@ -123,7 +129,7 @@ def import_csv(filepath: str):
                         if transaction_type == "essen"
                         else kids_meal_product
                     ),
-                    total_amount=row["betrag"],
+                    total_amount=row["betrag"] * -1,
                     quantity=quantity,
                 )
             )