from datetime import datetime
from sqlalchemy import String, DateTime
from sqlalchemy.orm import Mapped, mapped_column, relationship

from app.database import Base


class Vehicle(Base):
    __tablename__ = "vehicles"

    id: Mapped[int] = mapped_column(primary_key=True)
    name: Mapped[str] = mapped_column(String(100), nullable=False)
    type: Mapped[str] = mapped_column(String(50), default="car")  # car, bus, truck
    created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)

    # Relationships
    positions: Mapped[list["Position"]] = relationship(back_populates="vehicle", cascade="all, delete-orphan")
    events: Mapped[list["Event"]] = relationship(back_populates="vehicle", cascade="all, delete-orphan")