from sqlalchemy import Column, Integer, String, DateTime, func
from app.core.db import Base


class User(Base):
    __tablename__ = "users"

    id = Column(Integer, primary_key=True, index=True)
    username = Column(String(50), unique=True, nullable=False, comment="用户名")
    mobile = Column(String(32), unique=True, nullable=True, comment="手机号")
    email = Column(String(120), unique=True, nullable=True, comment="邮箱")
    created_at = Column(DateTime, server_default=func.now(), nullable=False)

    def __repr__(self):
        return f"<User id={self.id} username={self.username} mobile={self.mobile}>"