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

class FoodCategory(Base):
    __tablename__ = "food_categories"

    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    name = Column(String, nullable=False, unique=True)
    created_at = Column(DateTime, default=func.now())
    updated_at = Column(DateTime, default=func.now(), onupdate=func.now())

    foods = relationship("Food", back_populates="category")

class Food(Base):
    __tablename__ = "foods"

    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    name = Column(String, nullable=False)
    description = Column(String, nullable=True)
    price = Column(Float, nullable=False)
    category_id = Column(UUID, ForeignKey("food_categories.id"), nullable=False)
    created_at = Column(DateTime, default=func.now())
    updated_at = Column(DateTime, default=func.now(), onupdate=func.now())

    category = relationship("FoodCategory", back_populates="foods")