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"""UserPreference model for user settings."""
from datetime import datetime
from sqlalchemy import Column, String, JSON, DateTime
import uuid
from src.config.database import Base


class UserPreference(Base):
    """Represents user-specific preferences and settings."""

    __tablename__ = "user_preferences"

    id = Column(String(36), primary_key=True, default=lambda: str(uuid.uuid4()))
    user_id = Column(String(255), nullable=False, unique=True, index=True)
    language = Column(String(10), default="en")
    personalization_settings = Column(JSON, default=dict)
    interface_config = Column(JSON, default=dict)
    created_at = Column(DateTime, default=datetime.utcnow)
    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)

    def to_dict(self) -> dict:
        """Convert model to dictionary."""
        return {
            "id": str(self.id),
            "user_id": self.user_id,
            "language": self.language,
            "personalization_settings": self.personalization_settings,
            "interface_config": self.interface_config,
            "created_at": self.created_at.isoformat() if self.created_at else None,
            "updated_at": self.updated_at.isoformat() if self.updated_at else None,
        }