"""Comment model for board comments."""

import uuid
from datetime import datetime

from sqlalchemy import Boolean, Column, DateTime, ForeignKey, String, Text
from sqlalchemy.dialects.postgresql import JSONB, UUID
from sqlalchemy.orm import relationship

from app.database.base import Base


class Comment(Base):
    """Comment model for viewer comments on shared boards."""

    __tablename__ = "comments"

    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    board_id = Column(UUID(as_uuid=True), ForeignKey("boards.id", ondelete="CASCADE"), nullable=False, index=True)
    share_link_id = Column(
        UUID(as_uuid=True), ForeignKey("share_links.id", ondelete="SET NULL"), nullable=True, index=True
    )
    author_name = Column(String(100), nullable=False)
    content = Column(Text, nullable=False)
    position = Column(JSONB, nullable=True)  # Optional canvas position
    created_at = Column(DateTime, nullable=False, default=datetime.utcnow)
    is_deleted = Column(Boolean, nullable=False, default=False)

    # Relationships
    board = relationship("Board", back_populates="comments")
    share_link = relationship("ShareLink", back_populates="comments")

    def __repr__(self) -> str:
        return f"<Comment(id={self.id}, author={self.author_name})>"