#include <iostream>
#include <string>
#include <fstream>
#include <stdio.h>
#include <Windows.h>
#include <filesystem>
#define WINDOWS
#ifdef WINDOWS
#include <direct.h>
#define GetCurrentDir _getcwd
#else
#include <unistd.h>
#define GetCurrentDir getcwd
#endif

using namespace std::experimental::filesystem;
using namespace std;
ifstream read("data.in");
ofstream write("data.in", ios_base::app);
std::string GetCurrentWorkingDir(void) {
    char buff[FILENAME_MAX];
    GetCurrentDir(buff, FILENAME_MAX);
    std::string current_working_dir(buff);
    return current_working_dir;
}


void about()
{
    cout << "TerminalS v0.1 BETA\n";
}


void check(char msg[1000])
{
    if (strcmp(msg,"about")==0)
        about();
    else
        if (strcmp(msg,"exit")==0)
            system("pause");
        else
            system(msg);
}


void create_user()
{
    string usr1, pwd1;
    cout << "Your username will be: ";
    cin >> usr1;
    cout << "\nYour password will be: ";
    cin >> pwd1;

    write << usr1 << " " << pwd1 << endl;
}
char msg[1000];
string ver,usr,pwd,ac;
int main()
{
    //system("Color 0A");
    cout << "Do you have an account? y/n\n";
    cin >> ac;
    if (ac == "n") {
        create_user();
        while (strcmp(msg,"exit")!=0)
        {

            cout << GetCurrentWorkingDir() << ">> ";
            cin >> msg;
            check(msg);
        }
    }
    if(ac == "y")
    {
        cout << "Username: ";
        cin >> usr;
        cout << "\nPassword: ";
        cin >> pwd;
        while (getline(read, ver))
            if (usr + " " + pwd != ver)
                cout << "";
            else
                while (strcmp(msg, "exit") != 0)
                {
                    cout << GetCurrentWorkingDir() << ">> ";
                    cin >> msg;
                    check(msg);
                }
    }
    read.close();
    write.close();
    return 0;
}