from sqlalchemy import Column, Integer, String, DateTime
from sqlalchemy.orm import relationship
from datetime import datetime, timezone

from app.core.database import Base


class Tenant(Base):
    __tablename__ = "tenants"

    id = Column(Integer, primary_key=True, index=True)
    name = Column(String, unique=True, index=True, nullable=False)
    description = Column(String, nullable=True)
    created_at = Column(DateTime, default=lambda: datetime.now(timezone.utc))

    # Relationships
    users = relationship("User", back_populates="tenant")
    hosts = relationship("Host", back_populates="tenant")
    cases = relationship("Case", back_populates="tenant")