"""小程序端客户端接口"""
import re
from typing import Optional
from fastapi import APIRouter, Depends, Request, Query
from sqlalchemy.orm import Session
from sqlalchemy import and_

from app.core.database import get_db
from app.core.auth import get_current_user, get_client_ip
from app.core.response import success_response, error_response
from app.core.request_payload import resolve_request_payload
from app.models.models import (
    BasAddress,
    BasProduct,
    BasProductCategory,
    BasProductUnit,
    BizDeliveryTask,
    BizOrderItem,
    BizPriceListItem,
    SysUser,
)
from app.crud.address import address_crud
from app.crud.user import user_crud
from app.crud.region import region_crud

router = APIRouter(prefix="/api/mini/client", tags=["小程序端-客户端接口"])


def require_client(current_user: dict = Depends(get_current_user)):
    """验证客户权限"""
    if current_user.get("role") != "client":
        return error_response(403, "需要客户权限")
    return current_user


def require_supplier_or_client(current_user: dict = Depends(get_current_user)):
    """验证供应商或客户权限"""
    if current_user.get("role") not in ["client", "supplier"]:
        return error_response(403, "需要供应商或客户权限")
    return current_user


def _resolve_request_payload(request_body: dict, current_user: dict) -> dict:
    return resolve_request_payload(request_body, current_user, source="mini_client")


def _deliverer_contact_phone(du: SysUser) -> Optional[str]:
    """配送员联系电话：优先 sys_user.phone；为空则尝试 username 为 11 位手机号的情况。"""
    p = (getattr(du, "phone", None) or "").strip()
    if p:
        return p
    un = (getattr(du, "username", None) or "").strip()
    if re.fullmatch(r"1[3-9]\d{9}", un):
        return un
    return None


# ============ 地址管理 ============


def _address_to_client_dict(addr) -> dict:
    return {
        "id": addr.id,
        "userId": addr.user_id,
        "addressType": addr.address_type,
        "contactPerson": addr.contact_person,
        "contactPhone": addr.contact_phone,
        "province": addr.province,
        "city": addr.city,
        "district": addr.district,
        "detailAddress": addr.detail_address,
        "isDefault": addr.is_default,
        "createAt": str(addr.create_at) if addr.create_at else None,
    }


@router.get("/addresses", response_model=dict)
def list_addresses(
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_client),
    page: Optional[int] = Query(None, ge=1, description="传则分页；不传则返回全量数组（兼容下单/选地址等）"),
    pageSize: Optional[int] = Query(None, ge=1, le=100, description="分页条数，默认 20"),
):
    """获取客户地址列表"""
    uid = current_user.get("user_id")
    if page is None:
        addresses = address_crud.get_by_user(db, uid)
        return success_response([_address_to_client_dict(a) for a in addresses])

    ps = pageSize if pageSize is not None else 20
    skip = (page - 1) * ps
    addresses, total = address_crud.get_by_user_paged(db, uid, skip=skip, limit=ps)
    items = [_address_to_client_dict(a) for a in addresses]
    total_pages = (total + ps - 1) // ps if total else 0
    return success_response({
        "list": items,
        "total": total,
        "page": page,
        "pageSize": ps,
        "totalPages": total_pages,
    })


@router.get("/addresses/{address_id}", response_model=dict)
def get_address(
    address_id: str,
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_client)
):
    """获取地址详情"""
    address = address_crud.get(db, address_id)
    
    if not address or address.user_id != current_user.get("user_id"):
        return error_response(404, "地址不存在")
    
    return success_response({
        "id": address.id,
        "userId": address.user_id,
        "addressType": address.address_type,
        "contactPerson": address.contact_person,
        "contactPhone": address.contact_phone,
        "province": address.province,
        "city": address.city,
        "district": address.district,
        "detailAddress": address.detail_address,
        "isDefault": address.is_default,
        "createAt": str(address.create_at) if address.create_at else None
    })


@router.post("/addresses", response_model=dict)
def create_address(
    request: dict,
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_client)
):
    """创建地址"""
    payload = _resolve_request_payload(request, current_user)
    if not payload.get("addressType") and not payload.get("address_type"):
        return error_response(400, "地址类型不能为空")
    payload["user_id"] = current_user.get("user_id")
    creator = {"user_id": current_user.get("user_id"), "real_name": current_user.get("real_name")}
    
    # 如果设置为默认，先取消其他默认
    if payload.get("isDefault"):
        address_crud.set_default(db, current_user.get("user_id"), "")
    
    address = address_crud.create(db, payload, creator)
    
    return success_response({
        "id": address.id,
        "addressType": address.address_type,
        "contactPerson": address.contact_person,
        "contactPhone": address.contact_phone
    })


@router.put("/addresses/{address_id}", response_model=dict)
def update_address(
    address_id: str,
    request: dict,
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_client)
):
    """更新地址"""
    address = address_crud.get(db, address_id)
    
    if not address or address.user_id != current_user.get("user_id"):
        return error_response(404, "地址不存在")
    
    # 如果设置为默认，先取消其他默认
    payload = _resolve_request_payload(request, current_user)
    if payload.get("isDefault"):
        address_crud.set_default(db, current_user.get("user_id"), address_id)
    
    updater = {"user_id": current_user.get("user_id"), "real_name": current_user.get("real_name")}
    address = address_crud.update_with_history(db, address_id, payload, updater)
    
    return success_response({
        "id": address.id,
        "addressType": address.address_type,
        "contactPerson": address.contact_person,
        "contactPhone": address.contact_phone
    })


@router.delete("/addresses/{address_id}", response_model=dict)
def delete_address(
    address_id: str,
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_client)
):
    """删除地址"""
    address = address_crud.get(db, address_id)
    
    if not address or address.user_id != current_user.get("user_id"):
        return error_response(404, "地址不存在")
    
    success = address_crud.soft_delete_with_history(db, address_id)
    
    return success_response({"id": address_id})


@router.post("/addresses/{address_id}/set-default", response_model=dict)
def set_default_address(
    address_id: str,
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_client)
):
    """设置默认地址"""
    address = address_crud.get(db, address_id)
    
    if not address or address.user_id != current_user.get("user_id"):
        return error_response(404, "地址不存在")
    
    success = address_crud.set_default(db, current_user.get("user_id"), address_id)
    
    if success:
        return success_response({"message": "设置成功"})
    return error_response(400, "设置失败")


# ============ 个人资料 ============


@router.get("/profile", response_model=dict)
def get_profile(
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_client)
):
    """获取客户个人资料"""
    user = user_crud.get(db, current_user.get("user_id"))
    
    if not user:
        return error_response(404, "用户不存在")
    
    region_name = None
    if user.region_id:
        region = region_crud.get(db, user.region_id)
        region_name = region.name if region else None
    
    # 获取默认配送地址
    default_address = address_crud.get_default(db, user.id, "delivery")
    address_info = None
    if default_address:
        address_info = {
            "contactPerson": default_address.contact_person,
            "contactPhone": default_address.contact_phone,
            "province": default_address.province,
            "city": default_address.city,
            "district": default_address.district,
            "detailAddress": default_address.detail_address
        }
    
    return success_response({
        "id": user.id,
        "username": user.username,
        "realName": user.real_name,
        "phone": user.phone,
        "role": user.role,
        "regionId": user.region_id,
        "regionName": region_name,
        "address": address_info
    })


@router.put("/profile", response_model=dict)
def update_profile(
    request: dict,
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_client)
):
    """更新客户个人资料"""
    user = user_crud.get(db, current_user.get("user_id"))
    
    if not user:
        return error_response(404, "用户不存在")
    
    payload = _resolve_request_payload(request, current_user)
    updater = {"user_id": current_user.get("user_id"), "real_name": current_user.get("real_name")}
    user = user_crud.update_with_history(db, current_user.get("user_id"), payload, updater)
    
    return success_response({
        "id": user.id,
        "realName": user.real_name,
        "phone": user.phone
    })


# ============ 价格清单 - 客户端查看 ============


@router.get("/price-list/current", response_model=dict)
def get_current_price_list(
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_client)
):
    """获取当前生效的价格清单"""
    from app.crud.price_list import price_list_crud, price_list_item_crud

    user = user_crud.get(db, current_user.get("user_id"))
    if not user or not user.region_id:
        return error_response(400, "用户未绑定区域")

    price_list = price_list_crud.get_active(db, user.region_id)
    if not price_list:
        return success_response(None)

    # 批量拉取价格项 + 商品/分类/单位，避免循环 N+1
    items = (
        db.query(
            BizPriceListItem.product_id,
            BizPriceListItem.unit_id,
            BizPriceListItem.price,
            BasProduct.name.label("product_name"),
            BasProduct.image_url.label("image_url"),
            BasProduct.category_id.label("category_id"),
            BasProductCategory.name.label("category_name"),
            BasProductUnit.name.label("unit_name"),
        )
        .outerjoin(
            BasProduct,
            and_(BizPriceListItem.product_id == BasProduct.id, BasProduct.is_del == 0),
        )
        .outerjoin(
            BasProductCategory,
            and_(BasProduct.category_id == BasProductCategory.id, BasProductCategory.is_del == 0),
        )
        .outerjoin(
            BasProductUnit,
            and_(BizPriceListItem.unit_id == BasProductUnit.id, BasProductUnit.is_del == 0),
        )
        .filter(BizPriceListItem.price_list_id == price_list.id, BizPriceListItem.is_del == 0)
        .all()
    )

    # 获取关联信息
    region = region_crud.get(db, price_list.region_id)
    region_name = region.name if region else None

    supplier = user_crud.get(db, price_list.supplier_id)
    supplier_name = supplier.real_name if supplier else None

    item_details = [
        {
            "productId": item.product_id,
            "productName": item.product_name,
            "categoryName": item.category_name,
            "unitId": item.unit_id,
            "unitName": item.unit_name,
            "price": float(item.price) if item.price else 0,
            "imageUrl": item.image_url,
        }
        for item in items
    ]

    return success_response({
        "id": price_list.id,
        "regionId": price_list.region_id,
        "regionName": region_name,
        "supplierId": price_list.supplier_id,
        "supplierName": supplier_name,
        "version": price_list.version,
        "effectiveTime": str(price_list.effective_time) if price_list.effective_time else None,
        "publishedTime": str(price_list.published_time) if price_list.published_time else None,
        "items": item_details
    })


@router.get("/price-list/products", response_model=dict)
def get_price_list_products(
    categoryId: Optional[str] = Query(None, description="分类ID"),
    keyword: Optional[str] = Query(None, description="搜索关键词"),
    page: int = Query(1, ge=1, description="页码"),
    pageSize: int = Query(20, ge=1, le=100, description="每页条数"),
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_client)
):
    """获取价格清单商品列表（带分类和搜索）"""
    from app.crud.price_list import price_list_crud, price_list_item_crud
    from app.crud.product import product_crud
    from app.crud.category import category_crud
    from app.crud.unit import unit_crud

    user = user_crud.get(db, current_user.get("user_id"))
    if not user or not user.region_id:
        return error_response(400, "用户未绑定区域")

    price_list = price_list_crud.get_active(db, user.region_id)
    if not price_list:
        return success_response({
            "list": [],
            "total": 0,
            "page": page,
            "pageSize": pageSize,
            "totalPages": 0
        })

    items = price_list_item_crud.get_by_price_list(db, price_list.id)

    # 获取商品信息并筛选
    result = []
    for item in items:
        product = product_crud.get(db, item.product_id)
        if not product:
            continue

        # 分类筛选
        if categoryId and product.category_id != categoryId:
            continue

        # 关键词筛选
        if keyword:
            if keyword.lower() not in (product.name or "").lower():
                continue

        category_name = None
        if product.category_id:
            category = category_crud.get(db, product.category_id)
            category_name = category.name if category else None

        unit_name = None
        if item.unit_id:
            u = unit_crud.get(db, item.unit_id)
            unit_name = u.name if u else None

        result.append({
            "productId": item.product_id,
            "productName": product.name,
            "categoryId": product.category_id,
            "categoryName": category_name,
            "unitId": item.unit_id,
            "unitName": unit_name,
            "price": float(item.price) if item.price else 0,
            "imageUrl": product.image_url,
            "description": product.description
        })

    # 分页
    total = len(result)
    start = (page - 1) * pageSize
    end = start + pageSize
    paginated = result[start:end]

    return success_response({
        "list": paginated,
        "total": total,
        "page": page,
        "pageSize": pageSize,
        "totalPages": (total + pageSize - 1) // pageSize
    })


# ============ 订单管理 - 客户端 ============

# 订单状态映射
CLIENT_ORDER_STATUS_MAP = {
    "pending_payment": "待支付",
    "pending_review_cancel": "待审核取消",
    "pending_dispatch": "待分配配送",
    "delivering": "配送中",
    "delivered": "配送完成",
    "pending_confirm": "待确认收货",
    "completed": "已完结",
    "cancelled": "已取消"
}


@router.post("/orders/preview", response_model=dict)
def preview_order(
    request: dict,
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_client)
):
    """订单预览"""
    from app.crud.order import order_crud
    from app.crud.price_list import price_list_crud, price_list_item_crud
    from app.crud.product import product_crud
    from app.crud.unit import unit_crud
    from decimal import Decimal

    payload = _resolve_request_payload(request, current_user)
    price_list_id = payload.get("priceListId")
    items = payload.get("items", [])
    address_id = payload.get("addressId")

    if not price_list_id:
        return error_response(400, "请选择价格清单")
    if not items:
        return error_response(400, "请选择商品")
    if not address_id:
        return error_response(400, "请选择配送地址")

    # 获取价格清单
    price_list = price_list_crud.get(db, price_list_id)
    if not price_list:
        return error_response(404, "价格清单不存在")

    # 获取地址信息
    address = address_crud.get(db, address_id)
    if not address or address.user_id != current_user.get("user_id"):
        return error_response(404, "地址不存在")

    # 获取价格清单项
    price_items = price_list_item_crud.get_by_price_list(db, price_list_id)
    price_map = {item.product_id: item for item in price_items}

    # 计算金额（使用Decimal确保精度）
    preview_items = []
    total_amount = Decimal("0")

    for item in items:
        product_id = item.get("productId")
        quantity = item.get("quantity", 0)

        price_item = price_map.get(product_id)
        if not price_item:
            return error_response(400, f"商品 {product_id} 不在价格清单中")

        product = product_crud.get(db, product_id)
        unit = unit_crud.get(db, price_item.unit_id) if price_item.unit_id else None

        # 使用Decimal进行精确计算
        item_amount = Decimal(str(quantity)) * Decimal(str(price_item.price))
        total_amount += item_amount

        preview_items.append({
            "productId": product_id,
            "productName": product.name if product else None,
            "unitName": unit.name if unit else None,
            "unitPrice": float(price_item.price),
            "quantity": quantity,
            "amount": float(item_amount)
        })

    # 拼接地址
    full_address = f"{address.province or ''}{address.city or ''}{address.district or ''}{address.detail_address or ''}"

    return success_response({
        "priceListId": price_list_id,
        "priceVersion": price_list.version,
        "items": preview_items,
        "totalAmount": float(total_amount),
        "address": {
            "contactPerson": address.contact_person,
            "contactPhone": address.contact_phone,
            "fullAddress": full_address
        }
    })


@router.post("/orders", response_model=dict)
def create_order(
    request: dict,
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_client)
):
    """创建订单"""
    from app.crud.order import order_crud
    from app.crud.price_list import price_list_crud, price_list_item_crud

    payload = _resolve_request_payload(request, current_user)
    price_list_id = payload.get("priceListId")
    items = payload.get("items", [])
    address_id = payload.get("addressId")
    payment_method_raw = payload.get("paymentMethod", "online")
    payment_method = order_crud.normalize_payment_method(payment_method_raw)
    if payment_method not in ["online", "offline"]:
        return error_response(400, "支付方式仅支持线上或线下")

    remark = payload.get("remark")

    if not price_list_id:
        return error_response(400, "请选择价格清单")
    if not items:
        return error_response(400, "请选择商品")
    if not address_id:
        return error_response(400, "请选择配送地址")

    # 获取用户信息
    user = user_crud.get(db, current_user.get("user_id"))
    if not user:
        return error_response(404, "用户不存在")

    if not user.region_id:
        return error_response(400, "用户未绑定区域")

    # 获取价格清单
    price_list = price_list_crud.get(db, price_list_id)
    if not price_list:
        return error_response(404, "价格清单不存在")

    # 获取地址信息
    address = address_crud.get(db, address_id)
    if not address or address.user_id != current_user.get("user_id"):
        return error_response(404, "地址不存在")

    # 获取价格清单项
    price_items = price_list_item_crud.get_by_price_list(db, price_list_id)
    price_map = {item.product_id: item for item in price_items}

    # 验证商品并整理订单项
    order_items = []
    for item in items:
        product_id = item.get("productId")
        quantity = item.get("quantity", 0)
        unit_id = item.get("unitId")

        price_item = price_map.get(product_id)
        if not price_item:
            return error_response(400, f"商品不在价格清单中")

        order_items.append({
            "productId": product_id,
            "unitId": unit_id or price_item.unit_id,
            "quantity": quantity,
            "unitPrice": float(price_item.price)
        })

    # 拼接地址
    full_address = f"{address.province or ''}{address.city or ''}{address.district or ''}{address.detail_address or ''}"

    creator = {
        "user_id": current_user.get("user_id"),
        "real_name": current_user.get("real_name")
    }

    order = order_crud.create_order(
        db,
        client_id=current_user.get("user_id"),
        region_id=user.region_id,
        price_list_id=price_list_id,
        price_version=price_list.version,
        items=order_items,
        address_id=address_id,
        address_info={
            "contactPerson": address.contact_person,
            "contactPhone": address.contact_phone,
            "fullAddress": full_address
        },
        payment_method=payment_method,
        remark=remark,
        creator=creator
    )

    order_status = getattr(order, "order_status", None) or "pending_confirm"
    delivery_status = getattr(order, "delivery_status", None) or "pending_dispatch"
    pay_status = getattr(order, "pay_status", None) or "pending_payment"

    return success_response({
        "orderId": order.id,
        "orderNo": order.order_no,
        "totalAmount": float(order.total_amount),
        "status": order.status,
        "orderStatus": order_status,
        "deliveryStatus": delivery_status,
        "payStatus": pay_status,
        "paymentMethod": order_crud.normalize_payment_method(order.payment_method),
    })


@router.get("/orders", response_model=dict)
def list_client_orders(
    status: Optional[str] = Query(None, description="订单状态（兼容旧参数；与 listTab 同时传时以 listTab 为准）"),
    orderStatus: Optional[str] = Query(None, description="订单主状态：pending_payment/pending_confirm/completed/cancelled"),
    listTab: Optional[str] = Query(
        None,
        description="列表分段：all / pending_payment / pending_confirm / completed / cancelled，用于 Tab 独立分页",
    ),
    page: int = Query(1, ge=1, description="页码"),
    pageSize: int = Query(10, ge=1, le=100, description="每页条数"),
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_client)
):
    """获取客户订单列表"""
    from app.crud.order import order_crud, order_item_crud

    segment = (listTab or "all").strip().lower()
    if segment not in ("all", "pending_payment", "pending_confirm", "completed", "cancelled"):
        segment = "all"

    use_status = status if segment == "all" else None
    use_list_tab = segment if segment != "all" else None
    use_order_status = (orderStatus or "").strip() if segment == "all" else None

    orders, total = order_crud.get_multi_with_filters(
        db,
        client_id=current_user.get("user_id"),
        status=use_status,
        order_status=use_order_status or None,
        list_tab=use_list_tab,
        skip=(page - 1) * pageSize,
        limit=pageSize
    )

    order_ids = [o.id for o in orders]

    # 批量获取订单项（用于订单列表中展示商品列表）
    items_by_order_id: dict[str, list[BizOrderItem]] = {}
    product_map: dict[str, BasProduct] = {}
    if order_ids:
        all_items: list[BizOrderItem] = db.query(BizOrderItem).filter(
            BizOrderItem.is_del == 0,
            BizOrderItem.order_id.in_(order_ids)
        ).all()

        for it in all_items:
            items_by_order_id.setdefault(it.order_id, []).append(it)

        product_ids = list({it.product_id for it in all_items if it.product_id})
        if product_ids:
            products: list[BasProduct] = db.query(BasProduct).filter(
                BasProduct.is_del == 0,
                BasProduct.id.in_(product_ids)
            ).all()
            product_map = {p.id: p for p in products}

    result = []
    for order in orders:
        order_status = getattr(order, "order_status", None) or "pending_confirm"
        delivery_status = getattr(order, "delivery_status", None) or "pending_dispatch"
        pay_status = getattr(order, "pay_status", None) or "pending_payment"

        order_items = items_by_order_id.get(order.id, [])
        item_count = len(order_items) if order_items else order_item_crud.get_count_by_order(db, order.id)
        total_quantity = float(sum([(it.quantity or 0) for it in order_items])) if order_items else None

        item_details = []
        for it in order_items:
            p = product_map.get(it.product_id)
            item_details.append({
                "id": it.id,
                "productId": it.product_id,
                "productName": (p.name if p else None),
                "quantity": float(it.quantity) if it.quantity else 0,
                "imageUrl": (p.image_url if p else None),
            })

        result.append({
            "id": order.id,
            "orderNo": order.order_no,
            "totalAmount": float(order.total_amount) if order.total_amount else 0,
            "paidAmount": float(order.paid_amount) if order.paid_amount else 0,
            "status": order.status,
            "orderStatus": order_status,
            "deliveryStatus": delivery_status,
            "payStatus": pay_status,
            "paymentMethod": order_crud.normalize_payment_method(order.payment_method),
            "itemCount": item_count,
            "totalQuantity": total_quantity if total_quantity is not None else item_count,
            "items": item_details,
            "createAt": str(order.create_at) if order.create_at else None
        })

    return success_response({
        "list": result,
        "total": total,
        "page": page,
        "pageSize": pageSize,
        "totalPages": (total + pageSize - 1) // pageSize
    })


@router.get("/orders/{order_id}", response_model=dict)
def get_client_order(
    order_id: str,
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_client)
):
    """获取客户订单详情"""
    from app.crud.order import order_crud, order_item_crud, order_status_log_crud
    from app.crud.product import product_crud
    from app.crud.unit import unit_crud
    from app.crud.deliverer_review import deliverer_review_crud

    order = order_crud.get(db, order_id)
    if not order:
        return error_response(404, "订单不存在")

    if order.client_id != current_user.get("user_id"):
        return error_response(403, "无权查看此订单")

    # 获取订单项
    items = order_item_crud.get_by_order(db, order_id)

    # 配送信息与评价信息
    from app.crud.deliverer_review import deliverer_review_crud
    delivery_task = db.query(BizDeliveryTask).filter(
        BizDeliveryTask.order_id == order_id,
        BizDeliveryTask.is_del == 0
    ).first()
    deliverer_name = None
    deliverer_phone = None
    if delivery_task and delivery_task.deliver_id:
        du = db.query(SysUser).filter(
            SysUser.id == delivery_task.deliver_id,
            SysUser.is_del == 0,
        ).first()
        if du:
            deliverer_name = du.real_name or du.username
            deliverer_phone = _deliverer_contact_phone(du)
    existing_review = deliverer_review_crud.get_by_order(db, order_id)

    # 获取状态日志
    status_logs = order_status_log_crud.get_by_order(db, order_id)

    # 获取区域名称
    region_name = None
    if order.region_id:
        region = region_crud.get(db, order.region_id)
        region_name = region.name if region else None

    # 处理订单项
    item_details = []
    for item in items:
        product = product_crud.get(db, item.product_id)
        unit = unit_crud.get(db, item.unit_id) if item.unit_id else None
        item_details.append({
            "id": item.id,
            "productId": item.product_id,
            "productName": product.name if product else None,
            "unitId": item.unit_id,
            "unitName": unit.name if unit else None,
            "measureValue": float(product.measure_value) if (product and getattr(product, "measure_value", None) is not None) else None,
            "quantity": float(item.quantity) if item.quantity else 0,
            "unitPrice": float(item.unit_price) if item.unit_price else 0,
            "amount": float(item.amount) if item.amount else 0,
            "deliveredQuantity": float(item.delivered_quantity) if item.delivered_quantity else 0,
            "status": item.status,
            "imageUrl": product.image_url if product else None,
        })

    # 处理状态日志
    log_details = []
    for log in status_logs:
        log_details.append({
            "status": log.to_status,
            "statusText": CLIENT_ORDER_STATUS_MAP.get(log.to_status, log.to_status),
            # BizOrderStatusLog 无 operator_name 字段；优先用 create_name（通用审计字段）
            "operatorName": getattr(log, "create_name", None) or "",
            "operatorRole": log.operator_role,
            "reason": log.reason,
            "createAt": str(log.create_at) if log.create_at else None
        })

    from app.core.order_status_compat import derive_three_status_from_legacy
    ts = derive_three_status_from_legacy(order.status, paid_amount=order.paid_amount)
    order_status = getattr(order, "order_status", None) or ts.order_status
    delivery_status = getattr(order, "delivery_status", None) or ts.delivery_status
    pay_status = getattr(order, "pay_status", None) or ts.pay_status

    return success_response({
        "id": order.id,
        "orderNo": order.order_no,
        "regionId": order.region_id,
        "regionName": region_name,
        "priceListId": order.price_list_id,
        "priceVersion": order.price_version,
        "status": order.status,
        "orderStatus": order_status,
        "deliveryStatus": delivery_status,
        "payStatus": pay_status,
        "paymentMethod": order_crud.normalize_payment_method(order.payment_method),
        "totalAmount": float(order.total_amount) if order.total_amount else 0,
        "paidAmount": float(order.paid_amount) if order.paid_amount else 0,
        "receivableAmount": float(order.receivable_amount) if order.receivable_amount else 0,
        "refundAmount": float(order.refund_amount) if order.refund_amount else 0,
        "contactPerson": order.contact_person,
        "contactPhone": order.contact_phone,
        "deliveryAddress": order.delivery_address,
        "remark": order.remark,
        "cancelReason": order.cancel_reason,
        "createAt": str(order.create_at) if order.create_at else None,
        "paymentTime": str(order.payment_time) if order.payment_time else None,
        "deliveryAssignTime": str(getattr(order, "delivery_assign_time", None)) if getattr(order, "delivery_assign_time", None) else None,
        "deliveredTime": str(getattr(order, "delivered_time", None)) if getattr(order, "delivered_time", None) else None,
        "delivererId": delivery_task.deliver_id if delivery_task else None,
        "delivererName": deliverer_name,
        "delivererPhone": deliverer_phone,
        "canReviewDeliverer": order.status == "completed" and delivery_task is not None and not existing_review,
        "delivererReview": {
            "id": existing_review.id,
            "score": existing_review.score,
            "tags": (existing_review.tags or "").split(",") if existing_review and existing_review.tags else [],
            "content": existing_review.content,
            "createAt": str(existing_review.create_at) if existing_review and existing_review.create_at else None
        } if existing_review else None,
        "items": item_details,
        "statusLogs": log_details
    })


@router.post("/orders/{order_id}/deliverer-review", response_model=dict)
def review_deliverer(
    order_id: str,
    request: dict,
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_client)
):
    """客户评价配送员"""
    from app.crud.order import order_crud
    from app.crud.deliverer_review import deliverer_review_crud

    order = order_crud.get(db, order_id)
    if not order:
        return error_response(404, "订单不存在")
    if order.client_id != current_user.get("user_id"):
        return error_response(403, "无权操作此订单")
    if order.status != "completed":
        return error_response(400, "仅已完成订单可评价")

    task = db.query(BizDeliveryTask).filter(
        BizDeliveryTask.order_id == order_id,
        BizDeliveryTask.is_del == 0
    ).first()
    if not task or not task.deliver_id:
        return error_response(400, "未找到对应配送员")

    exists = deliverer_review_crud.get_by_order(db, order_id)
    if exists:
        return error_response(400, "该订单已评价")

    payload = _resolve_request_payload(request, current_user)
    score = int(payload.get("score", 0))
    if score < 1 or score > 5:
        return error_response(400, "评分必须在1-5之间")

    tags = payload.get("tags") or []
    content = payload.get("content")
    is_anonymous = bool(payload.get("isAnonymous", False))
    creator = {
        "user_id": current_user.get("user_id"),
        "real_name": current_user.get("real_name")
    }
    review = deliverer_review_crud.create_review(
        db=db,
        order_id=order_id,
        task_id=task.id,
        client_id=current_user.get("user_id"),
        deliverer_id=task.deliver_id,
        score=score,
        tags=tags,
        content=content,
        is_anonymous=is_anonymous,
        creator=creator
    )

    return success_response({
        "id": review.id,
        "score": review.score,
        "message": "评价成功"
    })


@router.post("/orders/{order_id}/cancel", response_model=dict)
def client_cancel_order(
    order_id: str,
    request: dict,
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_client)
):
    """客户发起取消申请 — 产品策略：客户端不可自助取消，请联系客服。"""
    return error_response(403, "订单取消请联系客服人员处理")


@router.post("/orders/{order_id}/direct-cancel", response_model=dict)
def client_direct_cancel_order(
    order_id: str,
    request: Optional[dict] = None,
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_client)
):
    """客户直接取消未支付订单 — 产品策略：客户端不可自助取消，请联系客服或等待超时自动关闭。"""
    return error_response(403, "订单取消请联系客服人员处理")


@router.post("/orders/{order_id}/confirm-receive", response_model=dict)
def client_confirm_receive(
    order_id: str,
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_client)
):
    """客户确认收货"""
    from app.crud.order import order_crud

    order = order_crud.get(db, order_id)
    if not order:
        return error_response(404, "订单不存在")

    if order.client_id != current_user.get("user_id"):
        return error_response(403, "无权操作此订单")

    order = order_crud.confirm_receive(
        db,
        order_id=order_id,
        operator_id=current_user.get("user_id")
    )

    if not order:
        return error_response(400, "当前状态不支持确认收货")

    return success_response({
        "id": order.id,
        "status": order.status,
        "orderStatus": getattr(order, "order_status", None) or "pending_confirm",
        "deliveryStatus": getattr(order, "delivery_status", None) or "pending_dispatch",
        "payStatus": getattr(order, "pay_status", None) or "pending_payment",
        "message": "确认收货成功"
    })


@router.get("/orders/{order_id}/delivery-progress", response_model=dict)
def get_delivery_progress(
    order_id: str,
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_client)
):
    """查看配送进度"""
    from app.crud.order import order_crud, order_item_crud, order_status_log_crud
    from app.crud.product import product_crud

    _dt_title = {
        "dt_supplier_stocking": "供应商开始备货",
        "dt_supplier_ready": "供应商备货完成（待配送员取货）",
        "dt_picking": "配送员取货中",
        "dt_delivering": "配送员配送中",
        "dt_completed": "配送任务已完成",
        "dt_assigned": "配送任务已分配",
        "dt_pending": "配送任务待分配",
        "dt_cancelled": "配送任务已取消",
    }

    order = order_crud.get(db, order_id)
    if not order:
        return error_response(404, "订单不存在")

    if order.client_id != current_user.get("user_id"):
        return error_response(403, "无权查看此订单")

    # 获取订单项
    items = order_item_crud.get_by_order(db, order_id)

    item_details = []
    for item in items:
        product = product_crud.get(db, item.product_id)
        item_details.append({
            "productId": item.product_id,
            "productName": product.name if product else None,
            "quantity": float(item.quantity) if item.quantity else 0,
            "deliveredQuantity": float(item.delivered_quantity) if item.delivered_quantity else 0,
            "status": item.status
        })

    status_logs = order_status_log_crud.get_by_order(db, order_id)
    task_events = []
    for log in status_logs:
        ts = log.to_status or ""
        if not str(ts).startswith("dt_"):
            continue
        task_events.append({
            "title": _dt_title.get(ts, ts),
            "remark": log.reason,
            "operatorRole": log.operator_role,
            "createAt": str(log.create_at) if log.create_at else None,
        })
    task_events.sort(key=lambda x: x.get("createAt") or "")

    return success_response({
        "orderId": order.id,
        "orderNo": order.order_no,
        "status": order.status,
        "orderStatus": getattr(order, "order_status", None),
        "deliveryStatus": getattr(order, "delivery_status", None),
        "payStatus": getattr(order, "pay_status", None),
        "items": item_details,
        "deliveryTaskEvents": task_events,
    })


@router.post("/orders/{order_id}/urge", response_model=dict)
def client_urge_order(
    order_id: str,
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_client)
):
    """客户催单"""
    from app.crud.order import order_crud
    from app.models.models import BizDeliveryTask
    from datetime import datetime, timedelta

    order = order_crud.get(db, order_id)
    if not order:
        return error_response(404, "订单不存在")

    if order.client_id != current_user.get("user_id"):
        return error_response(403, "无权操作此订单")

    # 检查订单状态，只有配送中的订单才能催单
    if getattr(order, "delivery_status", None) != "delivering":
        return error_response(400, "当前状态不支持催单")

    # 获取今天已催单次数（从订单备注中统计）
    today = datetime.now().replace(hour=0, minute=0, second=0, microsecond=0)
    tomorrow = today + timedelta(days=1)

    # 查询今天的催单次数
    urge_count = 1  # 默认允许催单
    last_urge_time = datetime.now().strftime("%Y-%m-%d %H:%M:%S")

    # 获取客户信息
    client = user_crud.get(db, current_user.get("user_id"))
    client_name = client.real_name if client else "未知客户"

    # 获取配送员信息
    deliver_name = None
    deliver_phone = None
    task = db.query(BizDeliveryTask).filter(
        BizDeliveryTask.order_id == order_id,
        BizDeliveryTask.is_del == 0
    ).first()
    if task and task.deliver_id:
        deliver = user_crud.get(db, task.deliver_id)
        if deliver:
            deliver_name = deliver.real_name
            deliver_phone = deliver.phone

    # 发送消息通知配送员
    try:
        from app.api.message import message_crud
        from app.core.utils import generate_id
        from app.models.models import BizMessage

        # 构造催单内容
        urge_content = f"【催单提醒】客户 {client_name} 催单，订单号：{order.order_no}，联系电话：{client.phone or '无'}。请尽快处理！"

        # 发送给配送员
        if task and task.deliver_id:
            message_data = {
                "id": generate_id(),
                "receiver_id": task.deliver_id,
                "receiver_name": deliver_name,
                "message_type": "delivery",
                "title": f"【催单提醒】订单 {order.order_no}",
                "content": urge_content,
                "is_read": 0,
                "create_by": current_user.get("user_id"),
                "create_name": client_name
            }
            message_obj = BizMessage(**message_data)
            db.add(message_obj)

        # 同时通知运营人员（查找所有admin角色用户）
        admin_users = db.query(SysUser).filter(
            SysUser.role == "admin",
            SysUser.is_active == True,
            SysUser.is_del == 0
        ).all()

        for admin in admin_users:
            admin_message_data = {
                "id": generate_id(),
                "receiver_id": admin.id,
                "receiver_name": admin.real_name,
                "message_type": "order",
                "title": f"【客户催单】订单 {order.order_no}",
                "content": urge_content,
                "is_read": 0,
                "create_by": current_user.get("user_id"),
                "create_name": client_name
            }
            admin_message = BizMessage(**admin_message_data)
            db.add(admin_message)

        db.commit()
    except Exception as e:
        # 消息发送失败不影响催单主流程，只记录日志
        import logging
        logging.warning(f"发送催单消息失败: {str(e)}")

    return success_response({
        "orderId": order.id,
        "urgeCount": urge_count,
        "lastUrgeTime": last_urge_time,
        "message": "催单成功，配送员将尽快处理"
    })


# ============ 结算与退款 - 客户端 ============

@router.get("/settlements", response_model=dict)
def list_client_settlements(
    page: int = Query(1, ge=1, description="页码"),
    pageSize: int = Query(10, ge=1, le=100, description="每页条数"),
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_client)
):
    """获取我的结算记录列表"""
    from app.crud.settlement import settlement_crud
    from app.models.models import BizOrder

    client_id = current_user.get("user_id")

    # 获取该客户的所有结算记录
    settlements, total = settlement_crud.get_multi_with_filters(
        db,
        client_id=client_id,
        status="confirmed",
        skip=(page - 1) * pageSize,
        limit=pageSize
    )

    result = []
    for settlement in settlements:
        order = db.query(BizOrder).filter(BizOrder.id == settlement.order_id).first()
        result.append({
            "id": settlement.id,
            "orderId": settlement.order_id,
            "orderNo": order.order_no if order else None,
            "amount": float(settlement.amount) if settlement.amount else 0,
            "settlementMethod": settlement.settlement_method,
            "settlementTime": str(settlement.settlement_time) if settlement.settlement_time else None,
            "settlementNote": settlement.settlement_note,
            "createAt": str(settlement.create_at) if settlement.create_at else None
        })

    return success_response({
        "list": result,
        "total": total,
        "page": page,
        "pageSize": pageSize,
        "totalPages": (total + pageSize - 1) // pageSize
    })


@router.get("/settlements/{settlement_id}", response_model=dict)
def get_client_settlement(
    settlement_id: str,
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_client)
):
    """获取结算记录详情"""
    from app.crud.settlement import settlement_crud
    from app.models.models import BizOrder

    client_id = current_user.get("user_id")

    settlement = settlement_crud.get(db, settlement_id)
    if not settlement:
        return error_response(404, "结算记录不存在")

    if settlement.client_id != client_id:
        return error_response(403, "无权查看此记录")

    order = db.query(BizOrder).filter(BizOrder.id == settlement.order_id).first()

    return success_response({
        "id": settlement.id,
        "orderId": settlement.order_id,
        "orderNo": order.order_no if order else None,
        "amount": float(settlement.amount) if settlement.amount else 0,
        "settlementMethod": settlement.settlement_method,
        "settlementTime": str(settlement.settlement_time) if settlement.settlement_time else None,
        "settlementNote": settlement.settlement_note,
        "settlementFileUrl": settlement.settlement_file_url,
        "reviewedBy": settlement.reviewed_by,
        "reviewedTime": str(settlement.reviewed_time) if settlement.reviewed_time else None,
        "createAt": str(settlement.create_at) if settlement.create_at else None
    })


@router.get("/settlements/statistics", response_model=dict)
def get_client_settlement_statistics(
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_client)
):
    """获取我的结算统计"""
    from app.crud.settlement import settlement_crud
    from app.models.models import BizOrder, BizSettlement
    from sqlalchemy import func

    client_id = current_user.get("user_id")

    # 获取已结算总额
    result = db.query(
        func.sum(BizSettlement.amount)
    ).filter(
        BizSettlement.client_id == client_id,
        BizSettlement.status == "confirmed",
        BizSettlement.is_del == 0
    ).scalar() or 0

    return success_response({
        "totalSettled": float(result)
    })


@router.get("/refunds", response_model=dict)
def list_client_refunds(
    page: int = Query(1, ge=1, description="页码"),
    pageSize: int = Query(10, ge=1, le=100, description="每页条数"),
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_client)
):
    """获取我的退款记录列表"""
    from app.crud.settlement import refund_crud
    from app.models.models import BizOrder

    client_id = current_user.get("user_id")

    # 获取该客户的所有退款记录（关联订单）
    refunds, total = refund_crud.get_multi_with_filters(
        db,
        skip=(page - 1) * pageSize,
        limit=pageSize
    )

    result = []
    for refund in refunds:
        order = db.query(BizOrder).filter(BizOrder.id == refund.order_id).first()
        if order and order.client_id == client_id:
            result.append({
                "id": refund.id,
                "orderId": refund.order_id,
                "orderNo": order.order_no if order else None,
                "refundNo": refund.refund_no,
                "refundAmount": float(refund.refund_amount) if refund.refund_amount else 0,
                "refundMethod": refund.refund_method,
                "refundResult": refund.refund_result,
                "status": refund.status,
                "refundTime": str(refund.refund_time) if refund.refund_time else None,
                "refundFailReason": refund.refund_fail_reason,
                "createAt": str(refund.create_at) if refund.create_at else None
            })

    return success_response({
        "list": result,
        "total": len(result),
        "page": page,
        "pageSize": pageSize,
        "totalPages": (len(result) + pageSize - 1) // pageSize
    })


@router.get("/refunds/{refund_id}", response_model=dict)
def get_client_refund(
    refund_id: str,
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_client)
):
    """获取退款详情"""
    from app.crud.settlement import refund_crud
    from app.models.models import BizOrder

    client_id = current_user.get("user_id")

    refund = refund_crud.get(db, refund_id)
    if not refund:
        return error_response(404, "退款记录不存在")

    order = db.query(BizOrder).filter(BizOrder.id == refund.order_id).first()
    if order and order.client_id != client_id:
        return error_response(403, "无权查看此记录")

    return success_response({
        "id": refund.id,
        "orderId": refund.order_id,
        "orderNo": order.order_no if order else None,
        "refundNo": refund.refund_no,
        "refundAmount": float(refund.refund_amount) if refund.refund_amount else 0,
        "refundMethod": refund.refund_method,
        "refundResult": refund.refund_result,
        "refundTime": str(refund.refund_time) if refund.refund_time else None,
        "refundNoWechat": refund.refund_no_wechat,
        "refundFailReason": refund.refund_fail_reason,
        "status": refund.status,
        "createAt": str(refund.create_at) if refund.create_at else None,
        "createName": refund.create_name
    })


@router.post("/refunds/apply/{order_id}", response_model=dict)
def apply_client_refund(
    order_id: str,
    request: dict,
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_client)
):
    """申请退款（线下冲销）"""
    from app.crud.settlement import refund_crud
    from app.models.models import BizOrder
    from decimal import Decimal

    client_id = current_user.get("user_id")

    order = db.query(BizOrder).filter(BizOrder.id == order_id).first()
    if not order:
        return error_response(404, "订单不存在")

    if order.client_id != client_id:
        return error_response(403, "无权操作此订单")

    payload = _resolve_request_payload(request, current_user)
    refund_amount = payload.get("refundAmount")
    reason = payload.get("reason")

    if not refund_amount or refund_amount <= 0:
        return error_response(400, "退款金额必须大于0")

    # 检查已支付金额
    paid_amount = float(order.paid_amount) if order.paid_amount else 0
    if refund_amount > paid_amount:
        return error_response(400, "退款金额不能超过已支付金额")

    # 检查是否有处理中的退款
    existing_refunds = refund_crud.get_by_order(db, order_id)
    processing_refund = any(r.status in ["pending", "processing"] for r in existing_refunds)
    if processing_refund:
        return error_response(400, "该订单有退款正在处理中，请勿重复提交")

    creator = {
        "user_id": current_user.get("user_id"),
        "real_name": current_user.get("real_name")
    }

    refund = refund_crud.create_refund(
        db,
        order_id=order_id,
        refund_amount=Decimal(str(refund_amount)),
        refund_method="offline",
        reason=reason,
        creator=creator
    )

    return success_response({
        "refundId": refund.id,
        "refundNo": refund.refund_no,
        "refundAmount": float(refund.refund_amount),
        "status": refund.status,
        "message": "退款申请已提交"
    })


@router.get("/refunds/statistics", response_model=dict)
def get_client_refund_statistics(
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_client)
):
    """获取我的退款统计"""
    from app.crud.settlement import refund_crud
    from app.models.models import BizOrder
    from sqlalchemy import func

    client_id = current_user.get("user_id")

    # 获取所有退款记录
    refunds = refund_crud.get_multi_with_filters(db, limit=1000)[0]

    # 筛选属于该客户的
    client_refunds = []
    for refund in refunds:
        order = db.query(BizOrder).filter(BizOrder.id == refund.order_id).first()
        if order and order.client_id == client_id:
            client_refunds.append(refund)

    total_refunds = len(client_refunds)
    success_refunds = sum(1 for r in client_refunds if r.status == "completed")
    pending_refunds = sum(1 for r in client_refunds if r.status in ["pending", "processing"])
    failed_refunds = sum(1 for r in client_refunds if r.status == "failed")

    success_amount = sum(
        float(r.refund_amount) for r in client_refunds
        if r.status == "completed" and r.refund_amount
    )

    return success_response({
        "totalRefunds": total_refunds,
        "successRefunds": success_refunds,
        "pendingRefunds": pending_refunds,
        "failedRefunds": failed_refunds,
        "totalRefunded": success_amount
    })