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

from app.database import Base


class User(Base):
    __tablename__ = "users"

    id = Column(Integer, primary_key=True, index=True)
    username = Column(String(50), unique=True, index=True, nullable=False)
    password_hash = Column(String(255), nullable=False)
    role = Column(String(20), nullable=False, default="user")
    display_name = Column(String(100))
    email = Column(String(100))
    notification_level = Column(String(20), default="normal")
    is_active = Column(Boolean, default=True)
    created_at = Column(DateTime, default=datetime.utcnow)
    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)

    medicines = relationship("Medicine", back_populates="creator")
    audit_logs = relationship("AuditLog", back_populates="user")
    notifications = relationship("Notification", back_populates="user")