#include "User.h"
#include "User_buying.h"
#include "User_change_name.h"

int main() {
    User admin;

    admin = User_buying::buying(admin, 300);
    admin = User_buying::buying(admin, 900);

    admin = User_change_name::change_name(admin, "admin");
    admin = User_change_name::change_name(admin, "");

    printf("%s\n%f\n\n", admin.get_name(), admin.get_money());
}

class User {
    //money
    public: void money_update(float money) {
        this -> money = money;
    }
    
    public: float get_money() { 
        return this -> money;
    }

    //name
    public: void name_update(const char* name) {
        this -> name = name;
    }

    public: const char* get_name() {
        return this -> name;
    }

    //variable
    private: const char* name = "user";
    private: float money = 1000;
};

#include <iostream>

class User_buying {
    public: static User buying(User user, float price) {
        if (price < user.get_money()) {
            user.money_update(user.get_money() - price);
            printf("Покупка виконана!\n");
        }
        else {
            printf("Недостатньо коштів\n");
        }
        
        return user;
    }
};

#include <iostream>

class User_change_name {
    public: static User change_name(User user, const char* name) {
        if (name != "") {
            user.name_update(name);
            printf("і'мя змінено\n");
        }
        else {
            printf("Невдача\n");
        }

        return user;
    }
};

#include <iostream>
#include <thread>

#include "User.h"
#include "Product.h"
#include "Informer.h"

int main()
{
    Informer informer;
    User* admin = new User("Київ, вул.Соборна 19", "admin", 10000);
    Product* products[3] = {
        new Bread(16, "хліб круглий", "хз"),
        new Milk(30, "молоко селянське", "Люстдорф", 2.5),
        new Gold(1000, "золото", "НБУ")
    };

    int num = 0;
    int size = sizeof(products)/sizeof(products[0]);

    while (true)
    {
        std::cout << "Вітаю!\nВаш баланс: " << admin -> balance_ << "\n\n";

        for (int i = 0; i < size; i++)
        {
            std::cout << "Номер товару " << i << "\n";
            products[i] -> info();
            std::cout << std::endl;
        }

        std::cout << "Введіть номер тавару та нажміть ентер\n";
        std::cin  >> num;

        if (!(std::cin))
        {
            break;
        }
        
        std::cout << "\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n";

        if ((num >= 0) && (num < size))
        {
            informer.buy(admin, products[num]);
        }
        else
        {
            std::cout << "Таких товарів немає!\n";
            break;
        }
        std::this_thread::sleep_for(std::chrono::milliseconds(3000));

        std::cout << "\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n";
    }
}

#pragma once
#include <iostream>

class User
{
public:
    std::string adress_;
    std::string name_;
    double balance_;
    double spent_;

    User(const char* adress, const char* name, double balance):
        adress_(adress),
        name_(name),
        balance_(balance),
        spent_(0)
        {}

    void reduce_balance(double price)
    {
        balance_ -= price;
        spent_    += price;
    }
};

#pragma once

#include <iostream>
#include <string>
#include "User.h"

class Product
{
public:
    double price_;
    std::string name_;
    std::string manufacturer_;

    Product(double price, std::string name, std::string manufacturer)
    {
        this -> price_        = price;
        this -> name_         = name;
        this -> manufacturer_ = manufacturer;
    }

    double virtual get_price(User* user)
    {
        if (user -> spent_ < 1000)
        {
            return price_;
        }
        
        if (user -> spent_ < 5000)
        {
            return price_ * 0.9; 
        }
        
        return price_ * 0.8;
    }

    void virtual info()
    {
        std::cout << "Назва: "    << this -> name_         << "\n"
                  << "Ціна: "     << this -> price_        << "\n"
                  << "Виробник "  << this -> manufacturer_ << "\n";
    }
};

class Bread : public Product
{
public:
    Bread(double price, std::string name, std::string manufacturer):
    Product(price, name, manufacturer) {}
};

class Milk : public Product
{
public:
    double oiliness_;

    Milk(double price, std::string name, std::string manufacturer, double oiliness):
    Product(price, name, manufacturer)
    {
        this -> oiliness_ = oiliness;
    }

    double get_price(User* user) override
    {
        return price_ * 0.9;
    }

    void info() override
    {
        Product::info();
        std::cout << "Жирність: " << oiliness_ << "\n";
    }
};

class Gold : public Product
{
public:
    Gold(double price, std::string name, std::string manufacturer)
    :Product(price, name, manufacturer) {}

    double get_price(User* user) override
    {
        return price_;
    }
};

#pragma once
#include "User.h"
#include "Product.h"

class Informer
{
public:
    void buy(User* user, Product* product)
    {
        double price = product -> get_price(user);
        user -> reduce_balance(price);
        std::cout << user -> name_ << " купив "<< product -> name_ << " за " << price << std::endl;
        std::cout << "Ваше замвлення відправлено на склад!\nОчікуйте товар.";
        /*
         *  якийсь код...
         *  який відбправляє запрос кудись :D
         */
    }
};