from sqlalchemy import Column, Integer, String, Float, ForeignKey, Enum
from sqlalchemy.orm import relationship
from app.database import Base
import enum

class UserRole(str, enum.Enum):
    ADMIN = "admin"
    USER = "user"

class User(Base):
    __tablename__ = "users"
    
    id = Column(Integer, primary_key=True, index=True)
    username = Column(String, unique=True, index=True, nullable=False)
    email = Column(String, unique=True, index=True, nullable=False)
    hashed_password = Column(String, nullable=False)
    role = Column(Enum(UserRole), default=UserRole.USER, nullable=False)
    
    health_issues = relationship("HealthIssue", back_populates="user", cascade="all, delete-orphan")

class Product(Base):
    __tablename__ = "products"
    
    id = Column(Integer, primary_key=True, index=True)
    name = Column(String, index=True, nullable=False)
    brand = Column(String, nullable=True)
    calories = Column(Float, nullable=False)
    protein = Column(Float, nullable=False)
    fat = Column(Float, nullable=False)
    carbohydrates = Column(Float, nullable=False)
    sodium = Column(Float, nullable=False)
    sugar = Column(Float, nullable=False)
    fiber = Column(Float, nullable=True)
    cholesterol = Column(Float, nullable=True)
    serving_size = Column(String, nullable=True)
    image_path = Column(String, nullable=True)

class HealthIssue(Base):
    __tablename__ = "health_issues"
    
    id = Column(Integer, primary_key=True, index=True)
    user_id = Column(Integer, ForeignKey("users.id"), nullable=False)
    issue_type = Column(String, nullable=False)
    severity = Column(String, nullable=True)
    notes = Column(String, nullable=True)
    
    user = relationship("User", back_populates="health_issues")