#include "pch.h"
#include <stdlib.h>
#include <time.h>
#include <stdio.h>
#include <iostream>
#include <string>
#include <conio.h>
using namespace std;

void convert(string *x, string *y) {

    int choice = 0;
    int random = 0;
    int num = 0;
    int ost = 0;
    int i = 0;
    string answer;


    srand(time(NULL));
    random = rand() % 200 + 1;
    num = random;
    *y = "";
    *x = "";
    i = 0;
    while (num / 2 != 0) {
        ost = num % 2;
        num = num / 2;
        if (ost == 1) y->insert(0, "1");
        if (ost == 0) y->insert(0, "0");// rezult in 2
        i++;
    }
    if (num == 1) y->insert(0, "1");
    i = 0;
    num = random;
    while (num / 16 != 0) {
        ost = num % 16;
        if (ost == 0) x->insert(0, "0");
        if (ost == 1) x->insert(0, "1");
        if (ost == 2) x->insert(0, "2");
        if (ost == 3) x->insert(0, "3");
        if (ost == 4) x->insert(0, "4");
        if (ost == 5) x->insert(0, "5");
        if (ost == 6) x->insert(0, "6");
        if (ost == 7) x->insert(0, "7");
        if (ost == 8) x->insert(0, "8");
        if (ost == 9) x->insert(0, "9");
        if (ost == 10) x->insert(0, "A");
        if (ost == 11) x->insert(0, "B");
        if (ost == 12) x->insert(0, "C");
        if (ost == 13) x->insert(0, "D");
        if (ost == 14) x->insert(0, "E");
        if (ost == 15) x->insert(0, "F");
        num = num / 16;
    }
    if (num != 0) x->insert(0, to_string(num));

}

int main()
{
    int choice = 0;
    int random = 0;
    int num = 0;
    int ost = 0;
    string *rez;
    bool flag = true;
    int i = 0;
    string answer;
    string *hex;

    hex = new string;
    rez = new string;


        while (flag) {
            cout << "Converting testing\n\n";
            cout << "If you want practice 2 -> 16 enter 1\nIf you want practice 16 -> 2 enter 2\nIf you want to exit enter 3\n";
            cout << "Your choice: ";
            cin >> choice;

            switch (choice) {
                case 1: {
                    while (answer != "STOP") {
                        convert(hex, rez);
                        cout << "Convert " << *rez << " from binary to hex\n";
                        cout << "Your answer: ";
                        cin >> answer;
                        if (answer == *hex) {
                            cout << "Correct\n";
                        }
                        if ((answer != *hex)&(answer != "STOP")) {
                            cout << "Wrong, answer is " << *hex << endl;

                        }
                    }
                    break;
                }
                case 2: {
                    while (answer != "STOP") {
                        convert(hex, rez);
                        cout << "Convert " << *hex << " from hex to binary\n";
                        cout << "Your answer: ";
                        cin >> answer;
                        if (answer == *rez) {
                            cout << "Correct\n";
                        }
                        if ((answer != *rez)&(answer != "STOP")) {
                            cout << "Wrong, answer is " << *rez << endl;
                        }
                    }
                    break;
                }
                case 3: {
                    flag = false;
                    break;
                }
            }
            answer = " ";

        }


        return 0;
        _getch();
}