"""产品 Pydantic Schemas"""
from __future__ import annotations
import uuid
from datetime import datetime
from pydantic import BaseModel, Field


class ProductCreate(BaseModel):
    """创建产品 — serial_number 由后端自动生成 16 位 HEX"""
    # MOM 物料挂载（必填）
    material_id: str = Field(..., max_length=64, description="MOM物料ID(必选)")
    material_name: str = Field("", max_length=255, description="物料名称")
    spec_model: str = Field("", max_length=255, description="规格型号")
    category: str = Field("", max_length=100, description="物料类别")
    material_type: str = Field("", max_length=100, description="物料类型")
    # 可选
    external_serial: str | None = Field(None, max_length=64, description="产品序列号(用户自定义,选填)")
    order_id: uuid.UUID | None = Field(None, description="所属订单ID(选填)")
    order_no: str | None = Field(None, max_length=64, description="订单号(自由键入,选填)")
    parent_product_id: uuid.UUID | None = Field(None, description="父产品ID")

    model_config = {"from_attributes": True}


class ProductUpdate(BaseModel):
    """更新产品"""
    serial_number: str | None = Field(None, min_length=16, max_length=16)
    external_serial: str | None = Field(None, max_length=64)
    material_id: str | None = Field(None, max_length=64)
    material_name: str | None = Field(None, max_length=255)
    spec_model: str | None = Field(None, max_length=255)
    order_no: str | None = Field(None, max_length=64, description="订单号")
    status: str | None = Field(None, max_length=50, description="产品状态")
    parent_product_id: uuid.UUID | None = Field(None)

    model_config = {"from_attributes": True}


class ProductResponse(BaseModel):
    """产品响应"""
    id: uuid.UUID
    serial_number: str
    external_serial: str | None = None
    order_id: uuid.UUID | None = None
    order_no: str = ""
    material_id: str | None
    material_name: str | None = None
    spec_model: str | None = None
    category: str | None = None
    material_type: str | None = None
    parent_product_id: uuid.UUID | None
    current_location_id: str | None = None
    current_location_name: str | None = None
    overall_status: str | None = None
    status: str
    created_at: datetime

    model_config = {"from_attributes": True}


class ProductScanResponse(BaseModel):
    """扫码查询响应 — 产品信息 + 完整任务树（递归嵌套）"""
    id: uuid.UUID
    serial_number: str
    external_serial: str | None = None
    order_id: uuid.UUID | None = None
    order_no: str = ""
    material_id: str | None
    material_name: str | None = None
    spec_model: str | None = None
    category: str | None = None
    material_type: str | None = None
    parent_product_id: uuid.UUID | None
    current_location_id: str | None = None
    overall_status: str | None = None
    status: str
    created_at: datetime
    top_level_tasks: list[TaskSummaryResponse] = []
    task_tree: list[TaskResponse] = []

    model_config = {"from_attributes": True}


# 延迟导入，避免循环引用
from app.schemas.task import TaskSummaryResponse, TaskResponse  # noqa: E402
ProductScanResponse.model_rebuild()