from fastapi import APIRouter, Depends
from fastapi.responses import StreamingResponse
from sqlalchemy.ext.asyncio import AsyncSession
from app.database import get_db
from app.middleware.auth import get_current_user, require_director_or_leader
from app.services.excel_export import export_weekly_report

router = APIRouter(prefix="/export", tags=["Export"])


@router.get("/weekly-report")
async def download_weekly_report(
    current_user: dict = Depends(require_director_or_leader),
    db: AsyncSession = Depends(get_db),
):
    """Export this week's report as a 4-sheet .xlsx file."""
    excel_bytes = await export_weekly_report(db)
    return StreamingResponse(
        excel_bytes,
        media_type="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
        headers={"Content-Disposition": "attachment; filename=weekly_report.xlsx"},
    )