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

class DeviceBase(BaseModel):
    name: str = Field(..., description="设备名称")
    device_type: str = Field(..., description="设备类型")
    location: Optional[str] = Field(None, description="设备位置")
    ip_address: Optional[str] = Field(None, description="IP地址")
    port: Optional[int] = Field(None, description="端口号")
    username: Optional[str] = Field(None, description="用户名")
    password: Optional[str] = Field(None, description="密码")
    rtsp_url: Optional[str] = Field(None, description="RTSP流地址")
    status: str = Field("offline", description="设备状态")
    resolution: Optional[str] = Field(None, description="分辨率")
    fps: Optional[int] = Field(None, description="帧率")
    algorithm_id: Optional[int] = Field(None, description="关联的算法ID")
    is_enabled: bool = Field(True, description="是否启用")
    latitude: Optional[float] = Field(None, description="纬度")
    longitude: Optional[float] = Field(None, description="经度")
    description: Optional[str] = Field(None, description="设备描述")
    manufacturer: Optional[str] = Field(None, description="制造商")
    model: Optional[str] = Field(None, description="设备型号")
    serial_number: Optional[str] = Field(None, description="序列号")

class DeviceCreate(DeviceBase):
    pass

class DeviceUpdate(BaseModel):
    name: Optional[str] = None
    device_type: Optional[str] = None
    location: Optional[str] = None
    ip_address: Optional[str] = None
    port: Optional[int] = None
    username: Optional[str] = None
    password: Optional[str] = None
    rtsp_url: Optional[str] = None
    status: Optional[str] = None
    resolution: Optional[str] = None
    fps: Optional[int] = None
    algorithm_id: Optional[int] = None
    is_enabled: Optional[bool] = None
    latitude: Optional[float] = None
    longitude: Optional[float] = None
    description: Optional[str] = None
    manufacturer: Optional[str] = None
    model: Optional[str] = None
    serial_number: Optional[str] = None

class DeviceResponse(DeviceBase):
    id: int
    created_at: datetime
    updated_at: datetime
    last_heartbeat: Optional[datetime] = None

    class Config:
        from_attributes = True

class DeviceListResponse(BaseModel):
    devices: List[DeviceResponse]
    total: int
    page: int
    size: int