"""发货管理接口（需求 2.2.2）。

校验规则（状态门槛、行金额固化、双重汇总回写、删除保护）见
`shipment_service` 模块 docstring；业务数据属业务操作，登录即可访问。
"""

from typing import Annotated

from fastapi import APIRouter, Depends, Path, Query

from app.api.deps import DbSession, RequestMetaDep, get_current_user
from app.core.response import ApiResponse, PageResult, ok
from app.models import User
from app.schemas.shipment import (
    ShipmentCreateIn,
    ShipmentDetailOut,
    ShipmentOut,
    ShipmentQuery,
    ShipmentUpdateIn,
)
from app.services import shipment_service

# 基础数据是业务操作：登录即可，不要求管理员（区别于系统管理的 AdminUser）
CurrentUser = Annotated[User, Depends(get_current_user)]

router = APIRouter(prefix="/shipments", tags=["发货管理"])


@router.get("", response_model=ApiResponse[PageResult[ShipmentOut]], summary="发货单列表")
def list_shipments(
    session: DbSession,
    _: CurrentUser,
    query: Annotated[ShipmentQuery, Query()],
) -> ApiResponse[PageResult[ShipmentOut]]:
    """分页查询发货单（附业务编号），可按业务/发货日期范围筛选。"""
    return ok(shipment_service.list_shipments(session, query))


@router.post("", response_model=ApiResponse[ShipmentOut], summary="创建发货单")
def create_shipment(
    session: DbSession,
    current_user: CurrentUser,
    payload: ShipmentCreateIn,
    meta: RequestMetaDep,
) -> ApiResponse[ShipmentOut]:
    """创建发货单（明细 ≥1）。业务须处于执行中；锁业务行后生成 SH 编号。"""
    return ok(
        shipment_service.create_shipment(session, payload, operator=current_user, meta=meta),
        message="发货单已创建",
    )


@router.get("/{shipment_id}", response_model=ApiResponse[ShipmentDetailOut], summary="发货单详情")
def get_shipment(
    session: DbSession,
    _: CurrentUser,
    shipment_id: Annotated[int, Path(ge=1)],
) -> ApiResponse[ShipmentDetailOut]:
    """发货单详情，附产品明细行，供编辑抽屉一次回显。"""
    return ok(shipment_service.get_detail(session, shipment_id))


@router.put("/{shipment_id}", response_model=ApiResponse[ShipmentOut], summary="编辑发货单")
def update_shipment(
    session: DbSession,
    current_user: CurrentUser,
    shipment_id: Annotated[int, Path(ge=1)],
    payload: ShipmentUpdateIn,
    meta: RequestMetaDep,
) -> ApiResponse[ShipmentOut]:
    """编辑发货单（明细全量替换并重算汇总）。终态业务的发货单禁改。"""
    return ok(
        shipment_service.update_shipment(
            session, shipment_id, payload, operator=current_user, meta=meta
        ),
        message="已保存",
    )


@router.delete("/{shipment_id}", response_model=ApiResponse[None], summary="删除发货单")
def delete_shipment(
    session: DbSession,
    current_user: CurrentUser,
    shipment_id: Annotated[int, Path(ge=1)],
    meta: RequestMetaDep,
) -> ApiResponse[None]:
    """删除发货单（连带明细行并回写业务汇总）。被回款批次指定时禁删。"""
    shipment_service.delete_shipment(session, shipment_id, operator=current_user, meta=meta)
    return ok(message="发货单已删除")