from __future__ import annotations

from datetime import datetime

from . import db


class RedemptionCode(db.Model):
    __tablename__ = "redemption_codes"

    id = db.Column(db.Integer, primary_key=True)
    code = db.Column(db.String(64), unique=True, nullable=False, index=True)
    status = db.Column(db.String(16), nullable=False, default="available")
    created_at = db.Column(db.DateTime, nullable=False, default=lambda: datetime.now())
    used_at = db.Column(db.DateTime, nullable=True)
    used_by_username = db.Column(db.String(256), nullable=True)
    used_by_principal_name = db.Column(db.String(256), nullable=True)

    def to_dict(self):
        return {
            "id": self.id,
            "code": self.code,
            "status": self.status,
            "createdAt": self.created_at.isoformat() if self.created_at else None,
            "usedAt": self.used_at.isoformat() if self.used_at else None,
            "usedByUsername": self.used_by_username,
            "usedByPrincipalName": self.used_by_principal_name,
        }