feat: billing cancel

services/billing.py

@@ -7,7 +7,8 @@ from starlette import status
 
 import backend.config
 from external.billing import BillingClient, CreateBillingRequestValue, CreateBillRequestSchema, CreateBillRequestItems, \
-    BillStatusUpdateRequest, NotificationChannel, NotifyReceivedBillRequestSchema, BillPaymentInfo
+    BillStatusUpdateRequest, NotificationChannel, NotifyReceivedBillRequestSchema, BillPaymentInfo, \
+    DeleteBillRequestSchema
 from models import DealBillRequest, Deal
 from schemas.billing import *
 from services.base import BaseService
@@ -116,3 +117,18 @@ class BillingService(BaseService):
         if not deal_bill:
             raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail='Deal bill was not found')
         return GetDealBillById(deal_bill=DealBillRequestSchema.model_validate(deal_bill))
+
+    async def cancel_deal_billing(self, user, request: CancelDealBillRequest) -> CancelDealBillResponse:
+        try:
+            deal_bill = await self._get_deal_bill_by_id(request.deal_id)
+            if not deal_bill:
+                return CancelDealBillResponse(ok=False, message='Заявка не найдена')
+            billing_client = BillingClient(backend.config.BILLING_API_KEY)
+            response = await billing_client.delete(DeleteBillRequestSchema(listener_transaction_id=request.deal_id))
+            if not response.ok:
+                return CancelDealBillResponse(ok=False, message='Ошибка')
+            await self.session.delete(deal_bill)
+            await self.session.commit()
+            return CancelDealBillResponse(ok=True, message='Заявка успешно отозвана')
+        except Exception as e:
+            return CancelDealBillResponse(ok=False, message=str(e))