from sqlalchemy import Column, Integer, String, Boolean, DateTime, func
from sqlalchemy.orm import relationship

from app.core.database import Base


class User(Base):
    __tablename__ = "users"

    id = Column(Integer, primary_key=True, autoincrement=True)
    username = Column(String(50), unique=True, nullable=False, index=True)
    display_name = Column(String(100), nullable=False)
    email = Column(String(100), unique=True, nullable=True)
    phone = Column(String(20), nullable=True)
    hashed_password = Column(String(200), nullable=False)
    role = Column(String(20), nullable=False, default="developer")  # admin / dba / auditor / developer / guest
    is_active = Column(Boolean, default=True)
    last_login = Column(DateTime, nullable=True)
    created_at = Column(DateTime, server_default=func.now())
    updated_at = Column(DateTime, server_default=func.now(), onupdate=func.now())

    # Many-to-Many relationship with InstanceGroup
    groups = relationship("InstanceGroup", secondary="user_groups", back_populates="users", lazy="selectin")