from datetime import datetime
from sqlalchemy import Column, Integer, String, DateTime, JSON
from app.core.database import Base


class NotificationOutbox(Base):
    __tablename__ = "notification_outbox"

    id = Column(Integer, primary_key=True, autoincrement=True)
    msg_id = Column(String(64), nullable=False, unique=True)
    channel = Column(String(32), nullable=False)
    payload = Column(JSON, nullable=False)
    priority = Column(Integer, default=10)
    status = Column(String(16), default="pending")
    attempts = Column(Integer, default=0)
    next_retry_at = Column(DateTime, nullable=True)

    created_at = Column(DateTime, default=datetime.utcnow)
    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)