File size: 3,633 Bytes
b4f2238 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 | """Business logic services."""
import logging
from typing import Any
from django.conf import settings
from django.utils import timezone
from apps.core.dto import GenerationTaskDTO
from apps.documents.models import GenerationMethod, GenerationStatus, GenerationTask
logger = logging.getLogger(__name__)
class GenerationTaskService:
def create_ai_task_internal(
self,
*,
case_id: int,
litigation_session_id: int,
document_type: str,
template_id: int | None,
created_by_id: int | None,
metadata: dict[str, Any],
) -> GenerationTaskDTO:
task = GenerationTask.objects.create(
case_id=case_id,
litigation_session_id=litigation_session_id,
generation_method=GenerationMethod.AI,
document_type=document_type,
template_id=template_id,
status=GenerationStatus.PROCESSING,
metadata=metadata or {},
created_by_id=created_by_id,
)
return self._to_dto(task)
def mark_task_completed_internal(
self,
*,
task_id: int,
result_file: str,
metadata_updates: dict[str, Any],
) -> GenerationTaskDTO:
task = GenerationTask.objects.filter(id=task_id).first()
if not task:
return GenerationTaskDTO(id=task_id, status=GenerationStatus.FAILED, created_at=timezone.now())
task.status = GenerationStatus.COMPLETED
task.result_file = result_file
task.completed_at = timezone.now()
task.metadata = task.metadata or {}
task.metadata.update(metadata_updates or {})
task.save(update_fields=["status", "result_file", "completed_at", "metadata"])
return self._to_dto(task)
def mark_task_failed_internal(
self,
*,
task_id: int,
error_message: str,
) -> GenerationTaskDTO:
task = GenerationTask.objects.filter(id=task_id).first()
if not task:
return GenerationTaskDTO(id=task_id, status=GenerationStatus.FAILED, created_at=timezone.now())
task.status = GenerationStatus.FAILED
task.error_message = str(error_message or "")
task.completed_at = timezone.now()
task.save(update_fields=["status", "error_message", "completed_at"])
return self._to_dto(task)
def get_task_internal(self, task_id: int) -> GenerationTaskDTO | None:
task = GenerationTask.objects.filter(id=task_id).first()
if not task:
return None
return self._to_dto(task)
def _to_dto(self, task: GenerationTask) -> GenerationTaskDTO:
document_name: str | None = None
document_url = None
if task.result_file:
try:
document_name = task.result_file.name.split("/")[-1]
except Exception:
logger.exception("操作失败")
document_name = None
try:
document_url = task.result_file.url
except Exception:
logger.exception("操作失败")
media_url = getattr(settings, "MEDIA_URL", "/media/")
file_name = getattr(task.result_file, "name", None) or str(task.result_file)
if file_name:
document_url = f"{media_url}{file_name}"
return GenerationTaskDTO(
id=task.pk,
status=task.status,
created_at=task.created_at,
created_by_id=getattr(task, "created_by_id", None),
document_name=document_name,
document_url=document_url,
)
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