Merge pull request #86 from u-hossy/feature/add-to-views

backend:algorithm2の修正

Author: tyyttty

backend/app/lib/algorithm2.py

@@ -174,10 +174,10 @@ def process_warikan_json(input_data: Dict[str, Any]) -> List[Dict[str, Any]]:
         if amount == 0 or paid_by_user is None or paid_for_user is None:
             continue
 
-        #支払った人は貸しだから残高をマイナス
-        sagaku[paid_by_user] -= amount
-        #支払ってもらった人は借りだから残高をプラス
-        sagaku[paid_for_user] += amount
+        #支払った人は貸しだから残高をプラス
+        sagaku[paid_by_user] += amount
+        #支払ってもらった人は借りだから残高をマイナス
+        sagaku[paid_for_user] -= amount
 
     solve_input_data = [
         {"user": user_id, "amount": int(round(amount))}
@@ -196,7 +196,7 @@ def process_warikan_json(input_data: Dict[str, Any]) -> List[Dict[str, Any]]:
         output_json_list.append({
             "id": j,
             "amount": amnt,
-            "paid_by": from_user,
-            "paid_for": to_user
+            "paid_by": to_user,
+            "paid_for": from_user
         })
     return output_json_list