"""Pydantic schemas - 分类参数关联"""
from pydantic import BaseModel, Field, ConfigDict
from typing import Optional, List
from datetime import datetime


class CategoryParameterBase(BaseModel):
    """分类参数关联基础字段"""
    model_config = ConfigDict(populate_by_name=True)

    category_id: str = Field(..., description="分类ID", alias="categoryId")
    parameter_id: str = Field(..., description="参数ID", alias="parameterId")
    is_required: int = Field(default=0, description="该分类下是否必填：0-否, 1-是", alias="isRequired")
    default_value: Optional[str] = Field(None, max_length=500, description="默认值", alias="defaultValue")
    sort_order: int = Field(default=0, description="排序", alias="sortOrder")


class CategoryParameterItem(BaseModel):
    """批量更新中的单个参数项（不包含categoryId）"""
    model_config = ConfigDict(populate_by_name=True)

    parameter_id: str = Field(..., description="参数ID", alias="parameterId")
    is_required: int = Field(default=0, description="该分类下是否必填：0-否, 1-是", alias="isRequired")
    default_value: Optional[str] = Field(None, max_length=500, description="默认值", alias="defaultValue")
    sort_order: int = Field(default=0, description="排序", alias="sortOrder")


class CategoryParameterCreate(CategoryParameterBase):
    """创建分类参数关联请求"""
    pass


class CategoryParameterUpdate(BaseModel):
    """更新分类参数关联请求"""
    model_config = ConfigDict(populate_by_name=True)

    is_required: Optional[int] = Field(None, description="是否必填", alias="isRequired")
    default_value: Optional[str] = Field(None, max_length=500, description="默认值", alias="defaultValue")
    sort_order: Optional[int] = Field(None, description="排序", alias="sortOrder")


class CategoryParameterBatchUpdate(BaseModel):
    """批量更新分类参数关联请求"""
    model_config = ConfigDict(populate_by_name=True)

    items: List[CategoryParameterItem] = Field(..., description="参数关联列表")


class CategoryParameterResponse(CategoryParameterBase):
    """分类参数关联响应"""
    id: str
    create_at: datetime
    create_by: Optional[str] = None
    create_name: Optional[str] = None
    update_at: Optional[datetime] = None

    class Config:
        from_attributes = True


class CategoryParameterWithDetailResponse(BaseModel):
    """带参数详情的分类参数关联响应"""
    id: str
    category_id: str
    parameter_id: str
    parameter_name: str
    parameter_code: str
    param_type: str
    options: Optional[str] = None
    placeholder: Optional[str] = None
    is_required: int
    default_value: Optional[str] = None
    sort_order: int

    class Config:
        from_attributes = True


class CategoryParameterListResponse(BaseModel):
    """分类参数关联列表响应"""
    list: List[CategoryParameterWithDetailResponse]
    total: int