"""
仓库管理路由模块

提供仓库信息的管理功能，包括：
- 仓库列表查询（按默认仓库排序）
- 创建新仓库（自动生成仓库编码）

路由前缀: /api/warehouses
"""
from fastapi import APIRouter, Depends
from sqlalchemy.ext.asyncio import AsyncSession
from sqlalchemy import select
from typing import List
from datetime import datetime

from database.database import get_db_session
from services.auth_service import get_current_active_user
from models.database import User, Warehouse
from .schemas import WarehouseCreate, WarehouseResponse

router = APIRouter(prefix="/warehouses", tags=["仓库管理"])


@router.get("", response_model=List[WarehouseResponse])
async def list_warehouses(
    db_session: AsyncSession = Depends(get_db_session),
    current_user: User = Depends(get_current_active_user)
):
    result = await db_session.execute(
        select(Warehouse).where(Warehouse.is_active == True).order_by(Warehouse.is_default.desc())
    )
    return [WarehouseResponse.from_orm(w) for w in result.scalars().all()]


@router.post("", response_model=WarehouseResponse, status_code=201)
async def create_warehouse(
    warehouse_data: WarehouseCreate,
    db_session: AsyncSession = Depends(get_db_session),
    current_user: User = Depends(get_current_active_user)
):
    data = warehouse_data.dict()
    if not data.get("code"):
        data["code"] = f"W{datetime.now().strftime('%Y%m%d%H%M%S')}"
    
    warehouse = Warehouse(**data)
    db_session.add(warehouse)
    await db_session.commit()
    await db_session.refresh(warehouse)
    return WarehouseResponse.from_orm(warehouse)