import uuid
from datetime import datetime

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

from app.database import Base


class NotificationLog(Base):
    __tablename__ = "notification_log"

    id: Mapped[uuid.UUID] = mapped_column(Uuid(as_uuid=True), primary_key=True, default=uuid.uuid4)
    user_id: Mapped[uuid.UUID] = mapped_column(
        Uuid(as_uuid=True), ForeignKey("users.id", ondelete="CASCADE"), nullable=False
    )
    registration_id: Mapped[uuid.UUID | None] = mapped_column(
        Uuid(as_uuid=True), ForeignKey("registrations.id", ondelete="SET NULL")
    )
    type: Mapped[str] = mapped_column(String(50), nullable=False)
    title: Mapped[str] = mapped_column(String(255), nullable=False)
    body: Mapped[str] = mapped_column(Text, nullable=False)
    sent_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
    delivery_status: Mapped[str] = mapped_column(String(20), default="pending")

    user: Mapped["User"] = relationship(back_populates="notification_logs")  # type: ignore[name-defined]
    registration: Mapped["Registration | None"] = relationship(back_populates="notification_logs")  # type: ignore[name-defined]