Добавлена отправка накладных на почту

app/adapters/delivery_providers/cdek/client.py

@@ -253,6 +253,55 @@ class CDEKClient:
                 "CDEK get waybill response payload is invalid."
             ) from exc
 
+    async def download_waybill_pdf(self, url: str) -> bytes:
+        failure_message = "CDEK waybill PDF download failed"
+        for attempt in range(self._retry_attempts + 1):
+            try:
+                token = await self._auth_client.get_access_token()
+                response = await self._http_client.get(
+                    url,
+                    headers={"Authorization": f"Bearer {token}"},
+                    timeout=self._timeout_seconds,
+                )
+            except (httpx.TimeoutException, httpx.TransportError) as exc:
+                if attempt < self._retry_attempts:
+                    await self._sleep(self._retry_delay(attempt))
+                    continue
+                raise CDEKClientError(
+                    f"{failure_message} after retry attempts."
+                ) from exc
+
+            if self._should_retry(response.status_code):
+                if attempt < self._retry_attempts:
+                    await self._sleep(self._retry_delay(attempt))
+                    continue
+                raise CDEKClientError(
+                    f"{failure_message} with retriable status "
+                    f"{response.status_code}."
+                )
+
+            if 400 <= response.status_code < 500:
+                log.warning(
+                    "cdek_waybill_pdf_download_rejected",
+                    url=url,
+                    status_code=response.status_code,
+                    response_body=_response_text_or_none(response),
+                )
+                raise CDEKRequestError(
+                    f"{failure_message} with status {response.status_code}."
+                )
+
+            try:
+                response.raise_for_status()
+            except httpx.HTTPError as exc:
+                raise CDEKClientError(
+                    f"{failure_message}: invalid response."
+                ) from exc
+
+            return response.content
+
+        raise CDEKClientError(f"{failure_message} unexpectedly.")
+
     async def _get_json(self, url: str, *, failure_message: str) -> dict[str, Any]:
         for attempt in range(self._retry_attempts + 1):
             try: