import uuid
from sqlalchemy import Column, String, Boolean, DateTime, func, ForeignKey
from sqlalchemy.dialects.postgresql import UUID
from sqlalchemy.orm import relationship
from app.config.database import Base

class Tenant(Base):
    __tablename__ = "tenants"

    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4, index=True)
    tenant_name = Column(String, unique=True, nullable=False, index=True)
    tenant_domain = Column(String, unique=True, nullable=False, index=True)
    tenant_logo_url = Column(String, nullable=True)
    is_active = Column(Boolean, default=True, nullable=False)

    created_at = Column(DateTime(timezone=True), server_default=func.now())
    updated_at = Column(
        DateTime(timezone=True), onupdate=func.now(), server_default=func.now()
    )

    # Relationships
    users = relationship("User", back_populates="tenant", cascade="all, delete-orphan")
    roles = relationship("Role", back_populates="tenant", cascade="all, delete-orphan")
    tenant_modules = relationship("TenantModule", back_populates="tenant", cascade="all, delete-orphan")

    def __repr__(self):
        return f"<Tenant {self.tenant_name}>"