from datetime import datetime
from typing import Optional

from sqlmodel import SQLModel, Field


class Station(SQLModel, table=True):
    id: int = Field(default=None, primary_key=True)
    mac: str = Field(unique=True)
    name: Optional[str] = Field(default=None)
    created_at: datetime = Field(default_factory=datetime.now)

class StationCreateRequest(SQLModel):
    name: str
    mac: str

class StationCreateResponse(SQLModel):
    id: int
    name: str

class StationListResponse(SQLModel):
    id: int
    name: str
    created_at: datetime

class StationUpdateRequest(SQLModel):
    id: int
    name: str

class StationUpdateResponse(SQLModel):
    id: int
    name: str