"""Bus stop model."""
from sqlmodel import SQLModel, Field, Column
from datetime import datetime
from typing import Optional
from enum import Enum
from uuid import UUID, uuid4
from sqlalchemy import DateTime, func


class StopType(str, Enum):
    """Stop type enumeration."""
    TERMINAL = "terminal"
    REGULAR = "regular"
    EXPRESS_ONLY = "express_only"


class BusStop(SQLModel, table=True):
    """Bus stop model."""
    
    __tablename__ = "bus_stops"
    
    id: Optional[UUID] = Field(default_factory=uuid4, primary_key=True)
    name: str
    latitude: float
    longitude: float
    city: str
    address: Optional[str] = None
    stop_type: StopType = StopType.REGULAR
    has_shelter: bool = False
    has_seating: bool = False
    is_accessible: bool = False
    stop_order: Optional[int] = None
    created_at: Optional[datetime] = Field(sa_column=Column(DateTime, server_default=func.now()))
    updated_at: Optional[datetime] = Field(sa_column=Column(DateTime, server_default=func.now(), onupdate=func.now()))