Добавлена валидация цены

app/adapters/delivery_providers/cdek/client.py

@@ -3,13 +3,21 @@
 import asyncio
 from collections.abc import Awaitable, Callable
 from typing import Any
-import logging
 
 import httpx
+import structlog
 
-from app.adapters.delivery_providers.base import DeliveryProvider, ProviderRequestError
+from app.adapters.delivery_providers.base import (
+    DeliveryProvider,
+    ProviderClientError,
+    ProviderRequestError,
+)
 from app.adapters.delivery_providers.cdek.auth import CDEKAuthClient
-from app.adapters.delivery_providers.cdek.mapper import map_cdek_response
+from app.adapters.delivery_providers.cdek.mapper import (
+    CDEKMappingError,
+    map_cdek_response,
+    map_cdek_response_for_tariff_code,
+)
 from app.adapters.delivery_providers.cdek.order_mapper import (
     CDEKOrderMappingError,
     map_cdek_existing_order_response,
@@ -21,10 +29,10 @@ from app.config import AdapterConfig
 from app.schemas.payment import InitPaymentRequest
 from app.schemas.request import DeliveryCalculationRequest
 from app.schemas.response import DeliveryPrice
-log = logging.getLogger(__name__)
+log = structlog.get_logger(__name__)
 
 
-class CDEKClientError(RuntimeError):
+class CDEKClientError(ProviderClientError):
     """Raised when CDEK tariff request fails."""
 
 
@@ -58,6 +66,29 @@ class CDEKClient:
         self, request: DeliveryCalculationRequest
     ) -> dict[str, Any]:
         payload = await self._build_payload(request)
+        return await self._post_tariff_payload(
+            payload,
+            request_error_message=None,
+        )
+
+    async def get_raw_payment_price(
+        self,
+        request: InitPaymentRequest,
+    ) -> dict[str, Any]:
+        payload = self._build_payment_price_payload(request)
+        return await self._post_tariff_payload(
+            payload,
+            request_error_message=(
+                "CDEK payment price validation request was rejected with status"
+            ),
+        )
+
+    async def _post_tariff_payload(
+        self,
+        payload: dict[str, Any],
+        *,
+        request_error_message: str | None,
+    ) -> dict[str, Any]:
         for attempt in range(self._retry_attempts + 1):
             try:
                 token = await self._auth_client.get_access_token()
@@ -79,10 +110,27 @@ class CDEKClient:
                 if attempt < self._retry_attempts:
                     await self._sleep(self._retry_delay(attempt))
                     continue
+                log.warning(
+                    "cdek_tariff_request_server_error",
+                    status_code=response.status_code,
+                    response_body=_response_text_or_none(response),
+                    request_payload=payload,
+                )
                 raise CDEKClientError(
                     f"CDEK tariff request failed with status {response.status_code}."
                 )
 
+            if request_error_message is not None and 400 <= response.status_code < 500:
+                log.warning(
+                    "cdek_tariff_request_rejected",
+                    status_code=response.status_code,
+                    response_body=_response_text_or_none(response),
+                    request_payload=payload,
+                )
+                raise CDEKRequestError(
+                    f"{request_error_message} {response.status_code}."
+                )
+
             try:
                 response.raise_for_status()
                 raw_payload = response.json()
@@ -182,6 +230,30 @@ class CDEKClient:
             ],
         }
 
+    @staticmethod
+    def _build_payment_price_payload(
+        request: InitPaymentRequest,
+    ) -> dict[str, Any]:
+        payload: dict[str, Any] = {
+            "type": request.type,
+            "from_location": request.from_location.model_dump(mode="python"),
+            "to_location": request.to_location.model_dump(mode="python"),
+            "packages": [
+                {
+                    "weight": package.weight * 1000,
+                    "length": package.length,
+                    "width": package.width,
+                    "height": package.height,
+                }
+                for package in request.packages
+            ],
+        }
+        if request.services is not None:
+            payload["services"] = [
+                service.model_dump(mode="python") for service in request.services
+            ]
+        return payload
+
     @staticmethod
     def _get_cdek_city_code(city_id: int) -> int:
         city_entry = cities_map.get(str(city_id))
@@ -247,6 +319,21 @@ class CDEKProvider(DeliveryProvider):
         raw_payload = await self._client.get_raw_price(request)
         return map_cdek_response(raw_payload)
 
+    async def get_payment_price(
+        self,
+        request: InitPaymentRequest,
+    ) -> DeliveryPrice | None:
+        raw_payload = await self._client.get_raw_payment_price(request)
+        try:
+            return map_cdek_response_for_tariff_code(
+                raw_payload,
+                tariff_code=request.tariff_code,
+            )
+        except CDEKMappingError as exc:
+            raise CDEKClientError(
+                "CDEK payment price validation response payload is invalid."
+            ) from exc
+
     async def register_order(self, request: InitPaymentRequest) -> str:
         return await self._client.register_order(request)
 
@@ -256,3 +343,10 @@ def _response_json_or_none(response: httpx.Response) -> object | None:
         return response.json()
     except (TypeError, ValueError):
         return None
+
+
+def _response_text_or_none(response: httpx.Response) -> str | None:
+    try:
+        return response.text
+    except Exception:
+        return None