from datetime import UTC, datetime

from app import db


class CheckItem(db.Model):
    """CheckItem model for checklist items"""

    __tablename__ = "check_items"

    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(500), nullable=False)
    pos = db.Column(db.Float)  # position for sorting
    state = db.Column(db.String(20), default="incomplete")  # 'complete' or 'incomplete'
    due = db.Column(db.DateTime)

    # Foreign keys
    checklist_id = db.Column(db.Integer, db.ForeignKey("checklists.id", ondelete="CASCADE"), nullable=False, index=True)
    user_id = db.Column(db.Integer, db.ForeignKey("users.id"), nullable=True, index=True)

    # Timestamps
    created_at = db.Column(db.DateTime, default=lambda: datetime.now(UTC))
    updated_at = db.Column(
        db.DateTime,
        default=lambda: datetime.now(UTC),
        onupdate=lambda: datetime.now(UTC),
    )

    def to_dict(self):
        """Convert check item to dictionary"""
        return {
            "id": self.id,
            "name": self.name,
            "pos": self.pos,
            "state": self.state,
            "due": self.due.isoformat() if self.due else None,
            "checklist_id": self.checklist_id,
            "user_id": self.user_id,
            "created_at": self.created_at.isoformat() if self.created_at else None,
            "updated_at": self.updated_at.isoformat() if self.updated_at else None,
        }

    def __repr__(self):
        return f"<CheckItem {self.name} ({self.state})>"