from sqlalchemy import Column, Integer, String, BigInteger, Text, DateTime, func

from app.core.database import Base


class Backup(Base):
    __tablename__ = "backups"

    id = Column(Integer, primary_key=True, autoincrement=True)
    instance_id = Column(Integer, nullable=False)
    title = Column(String(200), nullable=False)
    database = Column(String(100), nullable=False)
    filename = Column(String(500), nullable=False, default="")
    size_bytes = Column(BigInteger, default=0)
    status = Column(String(20), default="pending")  # pending / running / completed / failed
    created_by = Column(Integer, nullable=True)
    created_at = Column(DateTime, server_default=func.now())
    completed_at = Column(DateTime, nullable=True)
    remark = Column(Text, nullable=True)