first commit

backend/app/api/v1/reports.py

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+from uuid import UUID
+
+from fastapi import APIRouter, Depends, HTTPException
+from fastapi.responses import FileResponse
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.core.config import settings
+from app.core.database import get_db
+from app.models.report import ExportReport
+from app.repositories.case_repo import CaseRepository
+from app.schemas.report import ReportCreate, ReportOut, ReportListOut
+
+router = APIRouter()
+
+
+@router.post("/cases/{case_id}/reports", response_model=ReportOut, status_code=201)
+async def generate_report(case_id: UUID, body: ReportCreate, db: AsyncSession = Depends(get_db)):
+    repo = CaseRepository(db)
+    case = await repo.get(case_id)
+    if not case:
+        raise HTTPException(404, "案件不存在")
+
+    from app.services.report_service import generate_report as gen
+    report = await gen(case_id, body, db)
+    return report
+
+
+@router.get("/cases/{case_id}/reports", response_model=ReportListOut)
+async def list_reports(case_id: UUID, db: AsyncSession = Depends(get_db)):
+    result = await db.execute(
+        select(ExportReport)
+        .where(ExportReport.case_id == case_id)
+        .order_by(ExportReport.created_at.desc())
+    )
+    items = list(result.scalars().all())
+    return ReportListOut(items=items, total=len(items))
+
+
+@router.get("/reports/{report_id}/download")
+async def download_report(report_id: UUID, db: AsyncSession = Depends(get_db)):
+    report = await db.get(ExportReport, report_id)
+    if not report:
+        raise HTTPException(404, "报告不存在")
+    full_path = settings.upload_path / report.file_path
+    if not full_path.exists():
+        raise HTTPException(404, "报告文件不存在")
+    return FileResponse(full_path, filename=full_path.name)