from pydantic import BaseModel
from typing import Optional, Any, List
from datetime import datetime

class ConfigItem(BaseModel):
    key: str
    value: Any
    type: str
    category: str
    description: Optional[str] = None
    updated_at: Optional[datetime] = None
    
    class Config:
        from_attributes = True

class ConfigUpdate(BaseModel):
    key: str
    value: Any

class ConfigBatchUpdate(BaseModel):
    configs: List[ConfigUpdate]

class ConfigHistoryItem(BaseModel):
    id: int
    config_key: str
    old_value: Optional[str] = None
    new_value: str
    updated_by: Optional[int] = None
    updated_at: datetime
    
    class Config:
        from_attributes = True

class ConfigResponse(BaseModel):
    code: int = 0
    message: str = "success"
    data: Any

class ConfigListResponse(BaseModel):
    code: int = 0
    message: str = "success"
    data: dict  # 按category分组的配置项