#include <cctype>
#include <ctime>
#include <functional>
#include <iostream>
#include <random>
#include <string>
#include <vector>
#include <windows.h>

void cls()
{
    HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
    COORD coordScreen = { 0, 0 };
    DWORD cCharsWritten;
    CONSOLE_SCREEN_BUFFER_INFO csbi;
    DWORD dwConSize;
    if( !GetConsoleScreenBufferInfo( hConsole, &csbi ))
        return;
    dwConSize = csbi.dwSize.X * csbi.dwSize.Y;
    if( !FillConsoleOutputCharacter( hConsole, (TCHAR) ' ', dwConSize, coordScreen, &cCharsWritten ) ||
            !GetConsoleScreenBufferInfo( hConsole, &csbi ) ||
            !FillConsoleOutputAttribute( hConsole, csbi.wAttributes, dwConSize, coordScreen, &cCharsWritten ))
        return;
    SetConsoleCursorPosition( hConsole, coordScreen );
}
int regis()
{

    std::string user,pass,mail;

    std::cout<<"\n\n\n    \n    Please enter your Mail(Min 12 / Max 3-)\n";

    std::cin>>mail;

    std::cout<<"    Please enter your UserName";

    std::cin>> user;

    std::cout<<"    Enter your password(Min 6 / Max 18)\n";

    std::cin>>pass;

    if(pass.size()<=18 && mail.size()>=12 && pass.size()>=6 && mail.size()<=30)
    {

        cls();

        std::cout<<"    Registration complete!\nNow please login in\n";

        int reg1;

        std::cout<<"Hit 1 do start logging in\n";

        std::cin>>reg1;

        if(reg1==1)
        {
            cls();

            std::string user1,pass1;

            std::cout<<"Username:";

            std::cin>>user1;

            std::cout<<"Password::";

            std::cin>>pass1;

            if(user1==user && pass1==pass)
            {
                cls();
                std::cout<<"Login succesfull!";
            }
            else
            {
                cls();
                std::cout<<"Login failed";
                regis();
            }
        }
        else
        {
            cls();
            std::cout<<"You haven't entered 1, please try again\n";
            regis();
        }
    }

    else
    {

        cls();


        std::cout<<"You haven't respected the rules\nPlease try again\n";

        regis();
    }
}
int main()
{
    int reg;

    std::cout<<"\n\n\n      Please register to enter on site(Press 1)\n";

    std::cin>>reg;

    if(reg==1)
    {
        cls();
        regis();
    }
    else
    {
        cls();
        std::cout<<"You haven't entered 1, please try again\n";
        main();
    }

}