"""Pydantic schemas - 配送任务管理"""
from pydantic import BaseModel, Field
from typing import Optional, List
from datetime import datetime
from decimal import Decimal


class DeliveryTaskItemResponse(BaseModel):
    """配送任务明细响应"""
    id: str
    taskId: str
    orderId: Optional[str] = None
    orderItemId: Optional[str] = None
    productId: Optional[str] = None
    productName: Optional[str] = None
    clientId: Optional[str] = None
    deliveryAddress: Optional[str] = None
    contactPerson: Optional[str] = None
    contactPhone: Optional[str] = None
    quantity: Decimal
    deliveredQuantity: Optional[Decimal] = None
    status: str
    deliveryTime: Optional[datetime] = None

    class Config:
        from_attributes = True


class DeliveryTaskResponse(BaseModel):
    """配送任务响应"""
    id: str
    taskNo: str
    orderId: Optional[str] = None
    regionId: Optional[str] = None
    regionName: Optional[str] = None
    supplierId: Optional[str] = None
    supplierName: Optional[str] = None
    deliverId: Optional[str] = None
    deliverName: Optional[str] = None
    status: str
    effectiveTime: Optional[datetime] = None
    pickupTime: Optional[datetime] = None
    pickupRemark: Optional[str] = None
    pickupImageUrl: Optional[str] = None
    deliveryTime: Optional[datetime] = None
    deliveryRemark: Optional[str] = None
    deliveryImageUrl: Optional[str] = None
    createAt: Optional[datetime] = None

    class Config:
        from_attributes = True


class DeliveryTaskDetailResponse(DeliveryTaskResponse):
    """配送任务详情响应"""
    items: List[DeliveryTaskItemResponse] = []
    order: Optional[dict] = None
    deliver: Optional[dict] = None


class DeliveryTaskListResponse(BaseModel):
    """配送任务列表响应"""
    items: List[DeliveryTaskResponse]
    total: int
    page: int
    pageSize: int
    totalPages: int


class DeliveryTaskCreateRequest(BaseModel):
    """创建配送任务请求"""
    orderId: str = Field(..., description="订单ID")
    regionId: str = Field(..., description="区域ID")
    supplierId: str = Field(..., description="供应商ID")
    deliverId: Optional[str] = Field(None, description="配送员ID")
    effectiveTime: Optional[datetime] = Field(None, description="配送截止时间")


class DeliveryTaskAssignRequest(BaseModel):
    """分配配送员请求"""
    deliverId: str = Field(..., description="配送员ID")


class DeliveryTaskPickupRequest(BaseModel):
    """确认取货请求"""
    pickupRemark: Optional[str] = Field(None, description="取货备注")
    pickupImageUrl: Optional[str] = Field(None, description="取货图片URL")


class DeliveryTaskDeliverRequest(BaseModel):
    """确认送达请求"""
    deliveryRemark: Optional[str] = Field(None, description="送达备注")
    deliveryImageUrl: Optional[str] = Field(None, description="送达图片URL")


class DeliveryTaskCancelRequest(BaseModel):
    """取消配送任务请求"""
    reason: str = Field(..., description="取消原因")


class DeliveryTaskStatusUpdateRequest(BaseModel):
    """更新配送任务状态请求"""
    status: str = Field(..., description="新状态")
    remark: Optional[str] = Field(None, description="备注")


# ============ 供应商端配送任务 Schema ============


class SupplierTaskResponse(BaseModel):
    """供应商配送任务响应"""
    id: str
    taskNo: str
    orderId: Optional[str] = None
    regionId: Optional[str] = None
    regionName: Optional[str] = None
    clientName: Optional[str] = None
    supplierId: Optional[str] = None
    deliverId: Optional[str] = None
    deliverName: Optional[str] = None
    status: str
    effectiveTime: Optional[datetime] = None
    pickupTime: Optional[datetime] = None
    pickupRemark: Optional[str] = None
    deliveryTime: Optional[datetime] = None
    totalItems: int = 0
    deliveredItems: int = 0
    createAt: Optional[datetime] = None

    class Config:
        from_attributes = True


class SupplierTaskListResponse(BaseModel):
    """供应商配送任务列表响应"""
    items: List[SupplierTaskResponse]
    total: int
    page: int
    pageSize: int
    totalPages: int


class SupplierConfirmPickupRequest(BaseModel):
    """供应商确认取货请求"""
    pickupRemark: Optional[str] = Field(None, description="取货备注")


class SupplierConfirmPreparedRequest(BaseModel):
    """供应商确认备货完成请求"""
    preparedRemark: Optional[str] = Field(None, description="备货备注")


# ============ 配送统计 Schema ============


class DeliveryStatisticsResponse(BaseModel):
    """配送统计响应"""
    totalTasks: int
    pendingTasks: int
    inProgressTasks: int
    completedTasks: int
    cancelledTasks: int
    averageDeliveryTime: Optional[float] = None
    onTimeRate: Optional[float] = None


class DeliveryWarningItem(BaseModel):
    """配送预警项"""
    taskId: str
    taskNo: str
    urgencyLevel: str
    remainingMinutes: int
    orderId: Optional[str] = None
    clientName: Optional[str] = None
    deliverName: Optional[str] = None


class DeliveryWarningListResponse(BaseModel):
    """配送预警列表响应"""
    items: List[DeliveryWarningItem] = []
    total: int
    page: int
    pageSize: int
    totalPages: int


# ============ 运营端配送任务 Schema (兼容旧命名) ============


class DeliveryAssignRequest(BaseModel):
    """分配配送员请求"""
    deliverId: str = Field(..., description="配送员ID")


class DeliveryAssignBatchRequest(BaseModel):
    """批量分配配送员请求"""
    taskIds: List[str] = Field(..., description="配送任务ID列表")
    deliverId: str = Field(..., description="配送员ID")


class DeliveryPickupRequest(BaseModel):
    """配送员取货确认请求"""
    taskId: str = Field(..., description="配送任务ID")
    pickupRemark: Optional[str] = Field(None, description="取货备注")
    pickupImageUrl: Optional[str] = Field(None, description="取货图片")


class DeliveryDeliverItem(BaseModel):
    """送达明细"""
    taskItemId: str = Field(..., description="配送任务明细ID")
    deliveredQuantity: Decimal = Field(..., description="送达数量")


class DeliveryDeliverRequest(BaseModel):
    """确认送达请求"""
    taskId: str = Field(..., description="配送任务ID")
    items: List[DeliveryDeliverItem] = Field(default_factory=list, description="送达明细列表")
    deliveryRemark: Optional[str] = Field(None, description="送达备注")
    deliveryImageUrl: Optional[str] = Field(None, description="送达图片")


class DeliveryCancelRequest(BaseModel):
    """取消配送任务请求"""
    taskId: str = Field(..., description="配送任务ID")
    reason: str = Field(..., description="取消原因")


class DeliveryReassignRequest(BaseModel):
    """重新分配配送员请求"""
    taskId: str = Field(..., description="配送任务ID")
    newDeliverId: str = Field(..., description="新配送员ID")
    reason: Optional[str] = Field(None, description="重新分配原因")


class DeliveryStatusResponse(BaseModel):
    """配送状态更新响应"""
    id: str
    status: str
    message: str = "操作成功"


class DeliveryTaskStatistics(BaseModel):
    """配送任务统计"""
    total: int = 0
    pending: int = 0
    picking: int = 0
    delivering: int = 0
    completed: int = 0
    cancelled: int = 0


class DeliveryAttachmentResponse(BaseModel):
    """配送附件响应"""
    id: str
    taskId: str
    type: str
    url: str
    createAt: datetime

    class Config:
        from_attributes = True


# 兼容别名
DeliveryCompleteRequest = DeliveryTaskDeliverRequest