from sqlalchemy import Column, Integer, String, Boolean, DateTime, Text, ForeignKey, JSON
from sqlalchemy.orm import relationship
from datetime import datetime
from database import Base

class User(Base):
    __tablename__ = 'users'
    
    id = Column(Integer, primary_key=True)
    name = Column(String(100), nullable=False)
    email = Column(String(100), unique=True, nullable=False)
    password = Column(String(255), nullable=False)
    rol = Column(String(50), default='operator')
    active = Column(Boolean, default=True)
    creation_time = Column(DateTime, default=datetime.utcnow)
    update_time = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
    
    modifications = relationship('UserAudit', back_populates='user', 
                                foreign_keys='UserAudit.user_id')
    modifications_made = relationship('UserAudit', back_populates='updater',
                                    foreign_keys='UserAudit.updater_id')

class UserAudit(Base):
    __tablename__ = 'users_audit'
    
    id = Column(Integer, primary_key=True)
    user_id = Column(Integer, ForeignKey('users.id'), nullable=False)
    updater_id = Column(Integer, ForeignKey('users.id'), nullable=False)
    
    action = Column(String(50), nullable=False)
    updated_attribute = Column(String(100))
    before_value = Column(Text)
    after_value = Column(Text)
    snapshot = Column(JSON)
    
    modification_date = Column(DateTime, default=datetime.utcnow)
    ip_address = Column(String(45))
    
    user = relationship('User', foreign_keys=[user_id], back_populates='modifications')
    updater = relationship('User', foreign_keys=[updater_id], back_populates='modifications_made')