"""
产品管理路由模块

提供产品信息的增删改查功能，包括：
- 产品列表查询（支持分页、搜索、分类筛选）
- 创建新产品（SKU唯一性校验）
- 更新产品信息
- 删除产品（软删除，需要管理员权限）

路由前缀: /api/products
"""
from typing import List, Optional

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

from shared.database.database import get_db_session
from shared.services.auth_service import get_current_active_user, get_current_admin_user
from shared.models.identity import User
from ..schemas import ProductBOMResponse, ProductBOMUpdate, ProductCreate, ProductResponse
from ..services.product_service import product_service

router = APIRouter(prefix="/products", tags=["产品管理"])



@router.get("", response_model=List[ProductResponse])
async def list_products(
    skip: int = Query(0, ge=0),
    limit: int = Query(20, ge=1, le=100),
    search: Optional[str] = None,
    category: Optional[str] = None,
    item_type: Optional[str] = None,
    db_session: AsyncSession = Depends(get_db_session),
    current_user: User = Depends(get_current_active_user)
):
    return await product_service.list_products(db_session, skip, limit, search, category, item_type)


@router.post("", response_model=ProductResponse, status_code=201)
async def create_product(
    product_data: ProductCreate,
    db_session: AsyncSession = Depends(get_db_session),
    current_user: User = Depends(get_current_active_user)
):
    return await product_service.create_product(db_session, product_data, current_user)


@router.post("/from-task/{task_id}", response_model=ProductResponse, status_code=201)
async def create_product_from_task(
    task_id: str,
    db_session: AsyncSession = Depends(get_db_session),
    current_user: User = Depends(get_current_active_user),
):
    return await product_service.create_product_from_task(db_session, task_id, current_user)


@router.put("/{product_id}", response_model=ProductResponse)
async def update_product(
    product_id: int,
    product_data: ProductCreate,
    db_session: AsyncSession = Depends(get_db_session),
    current_user: User = Depends(get_current_active_user)
):
    return await product_service.update_product(db_session, product_id, product_data, current_user)


@router.delete("/{product_id}")
async def delete_product(
    product_id: int,
    db_session: AsyncSession = Depends(get_db_session),
    current_user: User = Depends(get_current_admin_user)
):
    return await product_service.delete_product(db_session, product_id, current_user)


@router.get("/{product_id}/materials", response_model=ProductBOMResponse)
async def get_product_bom(
    product_id: int,
    db_session: AsyncSession = Depends(get_db_session),
    current_user: User = Depends(get_current_active_user)
):
    return await product_service.get_product_bom(db_session, product_id)


@router.put("/{product_id}/materials", response_model=ProductBOMResponse)
async def replace_product_bom(
    product_id: int,
    payload: ProductBOMUpdate,
    db_session: AsyncSession = Depends(get_db_session),
    current_user: User = Depends(get_current_active_user)
):
    return await product_service.replace_product_bom(db_session, product_id, payload, current_user)