import uuid
from datetime import date

from fastapi import APIRouter, Depends
from sqlalchemy.ext.asyncio import AsyncSession

from app.core.deps import get_db_session, require_api_permission
from app.crud import finance as finance_crud
from app.crud import study as study_crud
from app.schemas.finance import FinanceSummaryRead

router = APIRouter()


@router.get("/summary", response_model=FinanceSummaryRead)
async def finance_summary(
    study_id: uuid.UUID,
    date_from: date | None = None,
    date_to: date | None = None,
    _=Depends(require_api_permission("fees_contracts:read")),
    db: AsyncSession = Depends(get_db_session),
) -> FinanceSummaryRead:
    # ensure study exists
    await study_crud.get(db, study_id)
    row = await finance_crud.summary(db, study_id, date_from=date_from, date_to=date_to)
    return FinanceSummaryRead(
        total_amount=row.total_amount,
        paid_amount=row.paid_amount,
        approved_amount=row.approved_amount,
        submitted_amount=row.submitted_amount,
        count_total=row.count_total,
        count_paid=row.count_paid,
    )