from sqlalchemy import Column, Integer, String, Float, ForeignKey, DateTime, Boolean, JSON, Enum
from sqlalchemy.orm import relationship
from datetime import datetime
from .menu import CategoryType
from ..db.database import Base

class User(Base):
    __tablename__ = "users"
    
    id = Column(Integer, primary_key=True, index=True)
    email = Column(String, unique=True, index=True)
    full_name = Column(String)
    hashed_password = Column(String)
    role = Column(String)
    created_at = Column(DateTime, default=datetime.utcnow)

class Category(Base):
    __tablename__ = "categories"
    
    id = Column(Integer, primary_key=True, index=True)
    name = Column(String, index=True)
    type = Column(Enum(CategoryType))
    description = Column(String, nullable=True)
    items = relationship("MenuItem", back_populates="category")

class MenuItem(Base):
    __tablename__ = "menu_items"
    
    id = Column(Integer, primary_key=True, index=True)
    name = Column(String, index=True)
    description = Column(String, nullable=True)
    price = Column(Float)
    category_id = Column(Integer, ForeignKey("categories.id"))
    image_url = Column(String, nullable=True)
    is_available = Column(Boolean, default=True)
    allergens = Column(JSON, nullable=True)
    preparation_time = Column(Integer, nullable=True)
    category = relationship("Category", back_populates="items")

class Order(Base):
    __tablename__ = "orders"
    
    id = Column(Integer, primary_key=True, index=True)
    user_id = Column(Integer, ForeignKey("users.id"))
    total_amount = Column(Float)
    status = Column(String)
    created_at = Column(DateTime, default=datetime.utcnow)
    items = relationship("OrderItem", back_populates="order")
    payment = relationship("Payment", back_populates="order")

class OrderItem(Base):
    __tablename__ = "order_items"
    
    id = Column(Integer, primary_key=True, index=True)
    order_id = Column(Integer, ForeignKey("orders.id"))
    menu_item_id = Column(Integer, ForeignKey("menu_items.id"))
    quantity = Column(Integer)
    unit_price = Column(Float)
    order = relationship("Order", back_populates="items")
    menu_item = relationship("MenuItem")

class Payment(Base):
    __tablename__ = "payments"
    
    id = Column(Integer, primary_key=True, index=True)
    order_id = Column(Integer, ForeignKey("orders.id"))
    amount = Column(Float)
    method = Column(String)
    status = Column(String)
    transaction_id = Column(String, nullable=True)
    created_at = Column(DateTime, default=datetime.utcnow)
    order = relationship("Order", back_populates="payment")