import logging import uuid from rest_framework import viewsets, status from rest_framework.decorators import action, api_view, permission_classes, parser_classes from rest_framework.response import Response from rest_framework.parsers import MultiPartParser, FormParser, JSONParser from rest_framework.permissions import AllowAny from django.conf import settings from drf_spectacular.utils import extend_schema, OpenApiParameter, OpenApiTypes from .models import TranscriptionTask, AIEvaluation from .serializers import TranscriptionTaskSerializer, TranscriptionUploadSerializer, AIEvaluationSerializer from .services import AliyunTingwuService logger = logging.getLogger(__name__) @api_view(['POST']) @permission_classes([AllowAny]) def tingwu_callback(request): """ 处理阿里云听悟的回调消息 """ data = request.data logger.info(f"收到听悟回调: {data}") # 1. 处理连通性测试消息 # 格式: {"Code": "0", "Data": {"Test": "..."}, "Message": "success", "RequestId": "..."} if isinstance(data, dict) and 'Data' in data and 'Test' in data['Data']: logger.info("收到听悟连通性测试请求") return Response({'message': 'success'}, status=status.HTTP_200_OK) # 2. 处理任务完成消息 (根据实际文档或后续调试完善) # 通常会包含 TaskId 和 Status # 注意：阿里云听悟回调的结构可能在 Header 或 Body 中不同，需根据实际情况调整 # 这里是一个通用的处理逻辑 task_id = data.get('TaskId') task_status = data.get('Status') if task_id: try: task = TranscriptionTask.objects.filter(task_id=task_id).first() if task: if task_status == 'COMPLETE': logger.info(f"任务 {task_id} 完成，等待下一次查询刷新") # 可以在这里直接调用 get_task_info 刷新数据，但要注意超时 elif task_status == 'FAILED': task.status = TranscriptionTask.Status.FAILED task.error_message = data.get('StatusText', 'Callback reported failure') task.save() else: logger.warning(f"回调收到未知任务ID: {task_id}") except Exception as e: logger.error(f"处理回调异常: {e}") return Response({'message': 'success'}, status=status.HTTP_200_OK) class TranscriptionTaskViewSet(viewsets.ModelViewSet): queryset = TranscriptionTask.objects.all() serializer_class = TranscriptionTaskSerializer parser_classes = (MultiPartParser, FormParser) @extend_schema( request={ 'multipart/form-data': { 'type': 'object', 'properties': { 'file': { 'type': 'string', 'format': 'binary' }, 'file_url': { 'type': 'string', 'description': '音频文件的URL地址' } } } }, responses={201: TranscriptionTaskSerializer} ) def create(self, request, *args, **kwargs): """ 上传音频文件并创建听悟转写任务 """ file_obj = request.FILES.get('file') file_url = request.data.get('file_url') if not file_obj and not file_url: return Response({'error': '请提供文件或文件URL'}, status=status.HTTP_400_BAD_REQUEST) service = AliyunTingwuService() if not service.bucket or not service.client: return Response({'error': '阿里云服务未配置'}, status=status.HTTP_503_SERVICE_UNAVAILABLE) try: oss_url = None if file_obj: # 1. 上传文件到 OSS file_extension = file_obj.name.split('.')[-1] file_name = f"transcription/{uuid.uuid4()}.{file_extension}" # 使用服务上传 oss_url = service.upload_to_oss(file_obj, file_name) else: # 使用提供的 URL oss_url = file_url # 2. 创建数据库记录 task_record = TranscriptionTask.objects.create( file_url=oss_url, status=TranscriptionTask.Status.PENDING ) # 3. 调用听悟接口创建任务 try: tingwu_response = service.create_transcription_task(oss_url) # 兼容处理响应结构，通常为 {"Data": {"TaskId": "...", ...}} if 'Data' in tingwu_response and isinstance(tingwu_response['Data'], dict): task_id = tingwu_response['Data'].get('TaskId') else: task_id = tingwu_response.get('TaskId') if task_id: task_record.task_id = task_id task_record.status = TranscriptionTask.Status.PROCESSING task_record.save() else: task_record.status = TranscriptionTask.Status.FAILED task_record.error_message = "未能获取 TaskId" task_record.save() return Response({'error': '未能获取 TaskId'}, status=status.HTTP_500_INTERNAL_SERVER_ERROR) except Exception as e: task_record.status = TranscriptionTask.Status.FAILED task_record.error_message = str(e) task_record.save() logger.error(f"创建听悟任务失败: {e}") return Response({'error': f"创建听悟任务失败: {str(e)}"}, status=status.HTTP_500_INTERNAL_SERVER_ERROR) serializer = self.get_serializer(task_record) return Response(serializer.data, status=status.HTTP_201_CREATED) except Exception as e: logger.error(f"处理上传请求失败: {e}") return Response({'error': str(e)}, status=status.HTTP_500_INTERNAL_SERVER_ERROR) @action(detail=True, methods=['post']) @extend_schema( request={ 'application/json': { 'type': 'object', 'properties': { 'model_selection': {'type': 'string', 'description': '模型选择'}, 'prompt': {'type': 'string', 'description': '评分提示词'}, } } }, responses={200: AIEvaluationSerializer} ) def evaluate(self, request, pk=None): """ 触发AI评估 """ task = self.get_object() # 1. 检查或创建 Evaluation 对象 evaluation, created = AIEvaluation.objects.get_or_create(task=task) # 2. 如果请求中有配置，更新配置 model_selection = request.data.get('model_selection') prompt = request.data.get('prompt') updated = False if model_selection: evaluation.model_selection = model_selection updated = True if prompt: evaluation.prompt = prompt updated = True if updated: evaluation.save() # 3. 调用 Service 执行评估 from .bailian_service import BailianService service = BailianService() service.evaluate_task(evaluation) serializer = AIEvaluationSerializer(evaluation) return Response(serializer.data) @action(detail=True, methods=['get']) @extend_schema( parameters=[ OpenApiParameter("id", OpenApiTypes.UUID, OpenApiParameter.PATH, description="Task ID"), ], responses={200: TranscriptionTaskSerializer} ) def refresh_status(self, request, pk=None): """ 刷新任务状态并获取结果 """ task = self.get_object() # 如果任务已经完成或失败，但逐字稿为空，允许重新刷新 if task.status == TranscriptionTask.Status.SUCCEEDED and not task.transcription: pass # 继续执行刷新逻辑 elif task.status in [TranscriptionTask.Status.SUCCEEDED, TranscriptionTask.Status.FAILED]: serializer = self.get_serializer(task) return Response(serializer.data) if not task.task_id: return Response({'error': '任务ID不存在'}, status=status.HTTP_400_BAD_REQUEST) service = AliyunTingwuService() try: result = service.get_task_info(task.task_id) # 兼容处理响应结构 {"Data": {"TaskStatus": "...", "Result": ...}} # 有些情况下 SDK 返回的是 JSON 字符串，需要二次解析 if isinstance(result, str): import json try: result = json.loads(result) except: pass if isinstance(result, dict): data_obj = result.get('Data', result) else: data_obj = result if not isinstance(data_obj, dict): # 如果 Data 不是字典，可能它本身就是字符串，或者 result 结构更平铺 data_obj = result # 防御性编程：确保 data_obj 是字典 if not isinstance(data_obj, dict): logger.error(f"Unexpected response format: {type(data_obj)} - {data_obj}") return Response({'error': f"Unexpected response format: {type(data_obj)}"}, status=status.HTTP_500_INTERNAL_SERVER_ERROR) # 调用 Service 进行解析和更新 service.parse_and_update_task(task, result) serializer = self.get_serializer(task) return Response(serializer.data) except Exception as e: logger.error(f"刷新任务状态失败: {e}") return Response({'error': str(e)}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)