#include <iostream>
#include <memory>
#include <string>


// 抽象产品类：咖啡
class Coffee {
public:
    virtual ~Coffee() {}
    virtual std::string getDescription() const = 0;
    virtual double cost() const = 0;
};


// 具体产品类：美式咖啡
class Americano : public Coffee {
public:
    std::string getDescription() const override {
        return "Americano";
    }
    double cost() const override {
        return 5.0;
    }
};


// 具体产品类：拿铁咖啡
class Latte : public Coffee {
public:
    std::string getDescription() const override {
        return "Latte";
    }
    double cost() const override {
        return 6.0;
    }
};


// 简单工厂类
class CoffeeFactory {
public:
    enum CoffeeType {
        AMERICANO,
        LATTE
    };


    static std::shared_ptr<Coffee> createCoffee(CoffeeType type) {
        switch (type) {
            case AMERICANO:
                return std::make_shared<Americano>();
            case LATTE:
                return std::make_shared<Latte>();
            default:
                return nullptr;
        }
    }
};


int main() {
    // 创建美式咖啡
    std::shared_ptr<Coffee> americano = CoffeeFactory::createCoffee(CoffeeFactory::AMERICANO);
    std::cout << "Description: " << americano->getDescription() << ", Cost: " << americano->cost() << " RMB" << std::endl;


    // 创建拿铁咖啡
    std::shared_ptr<Coffee> latte = CoffeeFactory::createCoffee(CoffeeFactory::LATTE);
    std::cout << "Description: " << latte->getDescription() << ", Cost: " << latte->cost() << " RMB" << std::endl;


    return 0;
}