"""服务项目 Schema"""

from typing import Optional, List
from datetime import datetime

from pydantic import BaseModel, Field


class ProjectBase(BaseModel):
    """项目基础字段"""
    
    project_code: str = Field(..., min_length=1, max_length=50, description="项目编码")
    project_name: str = Field(..., min_length=1, max_length=100, description="项目名称")
    category_id: Optional[int] = Field(None, description="项目分类ID")
    description: Optional[str] = Field(None, description="项目描述")
    duration_minutes: int = Field(0, ge=0, description="操作时长（分钟）")
    is_active: bool = Field(True, description="是否启用")


class ProjectCreate(ProjectBase):
    """创建项目请求"""
    pass


class ProjectUpdate(BaseModel):
    """更新项目请求"""
    
    project_code: Optional[str] = Field(None, min_length=1, max_length=50, description="项目编码")
    project_name: Optional[str] = Field(None, min_length=1, max_length=100, description="项目名称")
    category_id: Optional[int] = Field(None, description="项目分类ID")
    description: Optional[str] = Field(None, description="项目描述")
    duration_minutes: Optional[int] = Field(None, ge=0, description="操作时长（分钟）")
    is_active: Optional[bool] = Field(None, description="是否启用")


class CostSummaryBrief(BaseModel):
    """成本汇总简要信息"""
    
    total_cost: float = Field(..., description="总成本（最低成本线）")
    material_cost: float = Field(..., description="耗材成本")
    equipment_cost: float = Field(..., description="设备折旧成本")
    labor_cost: float = Field(..., description="人工成本")
    fixed_cost_allocation: float = Field(..., description="固定成本分摊")
    
    class Config:
        from_attributes = True


class ProjectResponse(ProjectBase):
    """项目响应"""
    
    id: int
    category_name: Optional[str] = Field(None, description="分类名称")
    cost_summary: Optional[CostSummaryBrief] = Field(None, description="成本汇总")
    created_at: datetime
    updated_at: datetime
    
    class Config:
        from_attributes = True


class ProjectListResponse(ProjectBase):
    """项目列表响应"""
    
    id: int
    category_name: Optional[str] = Field(None, description="分类名称")
    cost_summary: Optional[CostSummaryBrief] = Field(None, description="成本汇总")
    created_at: datetime
    updated_at: datetime
    
    class Config:
        from_attributes = True


class ProjectQuery(BaseModel):
    """项目查询参数"""
    
    page: int = Field(1, ge=1, description="页码")
    page_size: int = Field(20, ge=1, le=100, description="每页数量")
    category_id: Optional[int] = Field(None, description="分类筛选")
    keyword: Optional[str] = Field(None, description="关键词搜索")
    is_active: Optional[bool] = Field(None, description="是否启用")
    sort_by: str = Field("created_at", description="排序字段")
    sort_order: str = Field("desc", description="排序方向")