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

class User(Base):
    __tablename__ = "users"
    id = Column(String, primary_key=True, default=lambda: str(uuid.uuid4()))
    username = Column(String, unique=True, nullable=False, index=True)
    email = Column(String, unique=True, nullable=False)
    password = Column(String, nullable=False)
    first_name = Column(String, nullable=True)
    last_name = Column(String, nullable=True)
    monthly_budget = Column(Float, default=0.0)
    currency = Column(String, default="USD")
    is_active = Column(Boolean, default=True)
    expenses = relationship("Expense", back_populates="user", cascade="all, delete-orphan")
    created_at = Column(DateTime, default=func.now())
    updated_at = Column(DateTime, default=func.now(), onupdate=func.now())