from __future__ import annotations

from datetime import datetime

from sqlalchemy import DateTime, ForeignKey, String, func
from sqlalchemy.orm import Mapped, mapped_column

from app.core.database import Base
from app.utils.ids import prefixed_id


class TelemetryEvent(Base):
    __tablename__ = "telemetry_events"

    id: Mapped[str] = mapped_column(
        String(40),
        primary_key=True,
        default=lambda: prefixed_id("tel"),
    )
    user_id: Mapped[str | None] = mapped_column(
        String(40),
        ForeignKey("users.id", ondelete="SET NULL"),
        index=True,
        nullable=True,
    )
    event_type: Mapped[str] = mapped_column(String(100), index=True, nullable=False)
    event_metadata: Mapped[str | None] = mapped_column(String(1000), nullable=True)
    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True),
        server_default=func.now(),
        nullable=False,
    )