"""``POST /reservations``、``GET /reservations``（T-P3-22 预约留资）。

topic 预留通用性，首期只有 full_report（全面报告上线提醒）。
幂等口径：重复预约返回已有记录（created=false，HTTP 仍 200）。
"""

from __future__ import annotations

from typing import Annotated

from fastapi import APIRouter, Depends, Query

from apps.api.deps import CurrentUserId, SessionDep
from packages.report.reservation_service import ReservationService
from packages.report.schemas import (
    ReservationCreateRequest,
    ReservationListResponse,
    ReservationResponse,
)
from packages.shared.response import ok

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


def reservation_service_dep(session: SessionDep) -> ReservationService:
    return ReservationService(session)


ReservationServiceDep = Annotated[ReservationService, Depends(reservation_service_dep)]


@router.post("", summary="预约留资（幂等：重复预约 created=false）")
async def create_reservation(
    payload: ReservationCreateRequest,
    user_id: CurrentUserId,
    service: ReservationServiceDep,
) -> dict[str, object]:
    result = await service.reserve(user_id=user_id, topic=payload.topic)
    return ok(
        ReservationResponse(
            topic=result.reservation.topic,
            created=result.created,
            created_at=result.reservation.created_at,
        ).model_dump()
    )


@router.get("", summary="我的预约主题列表（topic 可选，缺省返回全部）")
async def list_reservations(
    user_id: CurrentUserId,
    service: ReservationServiceDep,
    topic: str | None = Query(default=None, max_length=32),
) -> dict[str, object]:
    topics = await service.list_topics(user_id=user_id, topic=topic)
    return ok(ReservationListResponse(topics=topics).model_dump())