"""
维修管理相关的Pydantic Schema
"""
from typing import Optional, List, Dict, Any
from datetime import datetime, date
from decimal import Decimal
from pydantic import BaseModel, Field


# ===== 维修记录Schema =====

class MaintenanceRecordBase(BaseModel):
    """维修记录基础Schema"""
    asset_id: int = Field(..., gt=0, description="资产ID")
    fault_description: str = Field(..., min_length=1, description="故障描述")
    fault_type: Optional[str] = Field(None, description="故障类型(hardware/software/network/other)")
    priority: str = Field(default="normal", description="优先级(low/normal/high/urgent)")
    maintenance_type: Optional[str] = Field(None, description="维修类型(self_repair/vendor_repair/warranty)")
    vendor_id: Optional[int] = Field(None, gt=0, description="维修供应商ID")
    maintenance_cost: Optional[Decimal] = Field(None, ge=0, description="维修费用")
    maintenance_result: Optional[str] = Field(None, description="维修结果描述")
    replaced_parts: Optional[str] = Field(None, description="更换的配件")
    images: Optional[str] = Field(None, description="维修图片URL（多个逗号分隔）")
    remark: Optional[str] = Field(None, description="备注")


class MaintenanceRecordCreate(MaintenanceRecordBase):
    """创建维修记录Schema"""
    pass


class MaintenanceRecordUpdate(BaseModel):
    """更新维修记录Schema"""
    fault_description: Optional[str] = Field(None, min_length=1)
    fault_type: Optional[str] = None
    priority: Optional[str] = None
    maintenance_type: Optional[str] = None
    vendor_id: Optional[int] = Field(None, gt=0)
    maintenance_cost: Optional[Decimal] = Field(None, ge=0)
    maintenance_result: Optional[str] = None
    replaced_parts: Optional[str] = None
    images: Optional[str] = None
    remark: Optional[str] = None


class MaintenanceRecordStart(BaseModel):
    """开始维修Schema"""
    maintenance_type: str = Field(..., description="维修类型")
    vendor_id: Optional[int] = Field(None, gt=0, description="维修供应商ID（vendor_repair时必填）")
    remark: Optional[str] = Field(None, description="备注")


class MaintenanceRecordComplete(BaseModel):
    """完成维修Schema"""
    maintenance_result: str = Field(..., description="维修结果描述")
    maintenance_cost: Optional[Decimal] = Field(None, ge=0, description="维修费用")
    replaced_parts: Optional[str] = Field(None, description="更换的配件")
    images: Optional[str] = Field(None, description="维修图片URL")
    asset_status: str = Field(default="in_stock", description="资产维修后状态(in_stock/in_use)")


class MaintenanceRecordInDB(BaseModel):
    """数据库中的维修记录Schema"""
    id: int
    record_code: str
    asset_id: int
    asset_code: str
    fault_description: str
    fault_type: Optional[str]
    report_user_id: Optional[int]
    report_time: datetime
    priority: str
    maintenance_type: Optional[str]
    vendor_id: Optional[int]
    maintenance_cost: Optional[Decimal]
    start_time: Optional[datetime]
    complete_time: Optional[datetime]
    maintenance_user_id: Optional[int]
    maintenance_result: Optional[str]
    replaced_parts: Optional[str]
    status: str
    images: Optional[str]
    remark: Optional[str]
    created_at: datetime
    updated_at: datetime

    class Config:
        from_attributes = True


class MaintenanceRecordResponse(MaintenanceRecordInDB):
    """维修记录响应Schema"""
    pass


class MaintenanceRecordWithRelations(MaintenanceRecordResponse):
    """带关联信息的维修记录响应Schema"""
    asset: Optional[Dict[str, Any]] = None
    vendor: Optional[Dict[str, Any]] = None
    report_user: Optional[Dict[str, Any]] = None
    maintenance_user: Optional[Dict[str, Any]] = None


# ===== 查询参数Schema =====

class MaintenanceRecordQueryParams(BaseModel):
    """维修记录查询参数"""
    asset_id: Optional[int] = Field(None, gt=0, description="资产ID")
    status: Optional[str] = Field(None, description="状态")
    fault_type: Optional[str] = Field(None, description="故障类型")
    priority: Optional[str] = Field(None, description="优先级")
    maintenance_type: Optional[str] = Field(None, description="维修类型")
    keyword: Optional[str] = Field(None, description="搜索关键词")
    page: int = Field(default=1, ge=1, description="页码")
    page_size: int = Field(default=20, ge=1, le=100, description="每页数量")


# ===== 统计Schema =====

class MaintenanceStatistics(BaseModel):
    """维修统计Schema"""
    total: int = Field(..., description="总数")
    pending: int = Field(..., description="待处理数")
    in_progress: int = Field(..., description="维修中数")
    completed: int = Field(..., description="已完成数")
    cancelled: int = Field(..., description="已取消数")
    total_cost: Decimal = Field(..., description="总维修费用")