Fixed more or less reading import, attempted to do listening

app/controllers/impl/reading.py

@@ -1,8 +1,7 @@
 import logging
 from typing import Optional
 
-from fastapi import UploadFile
-from grpc import services
+from fastapi import UploadFile, Response
 
 from app.controllers.abc import IReadingController
 from app.dtos.reading import ReadingDTO
@@ -16,7 +15,11 @@ class ReadingController(IReadingController):
         self._logger = logging.getLogger(__name__)
 
     async def import_exam(self, exercises: UploadFile, solutions: UploadFile = None):
-        return await self._service.import_exam(exercises, solutions)
+        res = await self._service.import_exam(exercises, solutions)
+        if not res:
+            return Response(status_code=500)
+        else:
+            return res
 
     async def generate_reading_passage(self, passage: int, topic: Optional[str], word_count: Optional[int]):
         return await self._service.generate_reading_passage(passage, topic, word_count)