from sqlalchemy import Column, String, Integer, Boolean, DateTime, ForeignKey, Enum
from sqlalchemy.orm import relationship
from sqlalchemy.sql import func
from sqlalchemy.dialects.postgresql import UUID
from core.database import Base
import uuid
from datetime import datetime

class User(Base):
    __tablename__ = "users"
    
    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    username = Column(String(50), unique=True, nullable=False, index=True)
    email = Column(String(255), unique=True, nullable=False, index=True)
    password = Column(String(255), nullable=False)
    first_name = Column(String(50), nullable=True)
    last_name = Column(String(50), nullable=True)
    phone_number = Column(String(20), unique=True, nullable=True)
    role = Column(Enum('admin', 'user', name='user_roles'), default='user')
    is_active = Column(Boolean, default=True, nullable=False)
    is_verified = Column(Boolean, default=False, nullable=False)
    last_login = Column(DateTime, nullable=True)
    created_at = Column(DateTime(timezone=True), server_default=func.now(), nullable=False)
    updated_at = Column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now(), nullable=False)