from sqlalchemy import Column, String, Boolean, ForeignKey
from sqlalchemy.dialects.postgresql import UUID
from sqlalchemy.orm import relationship
from backend.app.models.base import BaseDBModel

class Notification(BaseDBModel):
    __tablename__ = "notifications"
    
    user_id = Column(UUID(as_uuid=True), ForeignKey("users.id", ondelete="CASCADE"), index=True, nullable=False)
    title = Column(String, nullable=False)
    message = Column(String, nullable=False)
    read = Column(Boolean, nullable=False, default=False, index=True)
    
    # Relationships
    user = relationship("User", back_populates="notifications")