Registration_DGJP_Final

#include <iostream>
#include <cctype>
#include <conio.h>
#include <cstring>
#include <stdlib.h>
using namespace std;

int main()
{
    string user, password, userConfirmation, passwordConfirmation;
    string alphaUpper = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
    string alphaLower = "abcdefghijklmnopqrstuvwxyz";
    string numer = "0123456789";
    string symbols = "!@#$%^&*_+|-=:;,<.>/? ";
    string letter;
    char passwordTemp, passwordConfTemp;
    int length, check1 = 1, check2 = 1, check3 = 1, aUpCount = 0, aUpVer = 0, aLowCount = 0, aLowVer = 0, aNumCount = 0, aNumVer = 0, userVer = 0, passwordVer = 0, symCount = 0;


    while (check1 != 0)
    {
    cout<<"REGISTRATION\n";
    cout<<"Username: ";
    getline(cin, user);
    system("cls");
    cout<<"REGISTRATION\n";
    cout<<"Username: "<<user<<endl;
    cout<<"Password: ";
        while (check2 != 0)
        {
            for ( ; ; )
            {
                passwordTemp = getch();
                if (passwordTemp == '\r')
                {
                    break;
                }
                if (passwordTemp == '\b')
                {
                    password.erase((password.length() - 1), 1);
                    cout<<'\b';
                    cout<<" ";
                    cout<<'\b';
                    continue;
                }
                password += passwordTemp;
                cout<<"*";
            }
            cout<<endl<<password<<"<<FOR TESTING"<< endl;
            break;
        }
        length = password.length();

        // checks if password is within 6-10 characters, repeats loop if not
        if ((length < 6) || (length > 10))
        {
            cout<<"Your password length must be within 6-10 characters.";
            password.clear();
            user.clear();
            system("pause");
            system("cls");
            continue;
        }

        for (int y = 0; y < 22; y++)
        {
            for (int z = 0; z < length; z++)
            {
                letter = password.substr(z, 1);
                if (letter == symbols.substr(y, 1))
                {
                    symCount += 1;
                    break;
                }
            }
        }
        for (int a = 0; a < 25; a++)
        {
            for (int b = 0; b < length; b++)
            {
                letter = password.substr(b, 1);
                if (letter == alphaUpper.substr(a, 1))
                {
                    aUpCount += 1;
                    break;
                }
            }
        }
        for (int c = 0; c < 25; c++)
        {
            for (int d = 0; d < length; d++)
            {
                letter = password.substr(d, 1);
                if (letter == alphaLower.substr(c, 1))
                {
                    aLowCount += 1;
                    break;
                }
            }
        }
        for (int e = 0; e < 10; e++)
        {
            for (int f = 0; f < length; f++)
            {
                letter = password.substr(f, 1);
                if (letter == numer.substr(e, 1))
                {
                    aNumCount += 1;
                }
            }
        }

        if (aUpCount > 0)
        {
            aUpVer += 1;
        }

        if (aLowCount > 0)
        {
            aLowVer += 1;
        }

        if (aNumCount > 0)
        {
            aNumVer += 1;
        }

        if ((aUpVer != 1) || (aLowVer != 1) || (aNumVer != 1))
        {
            cout<<"Your password is invalid due to the following reasons: "<<endl;
            if (aUpVer != 1)
            {
                cout<<" - There must be at least one (1) uppercase letter."<<endl;
                aUpCount = 0;
                aUpVer = 0;
            }
            if (aLowVer != 1)
            {
                cout<<" - There must be at least one (1) lowercase letter."<<endl;
                aLowVer = 0;
                aLowCount = 0;
            }
            if (aNumVer != 1)
            {
                cout<<" - There must be at least one (1) number."<<endl;
                aNumVer = 0;
                aNumCount = 0;
            }
            if (symCount > 0)
            {
                cout<<" - Your password cannot contain any special characters."<<endl;
                symCount = 0;
            }
            password.clear();
            system("pause");
            system("cls");
            continue;
        }
        cout<<endl<<"Details recorded.";
        system("pause");
        system("cls");
        goto verification;
    }

    verification:
    cout<<"Your login details are up for verification."<<endl;
    while(check3 != 0)
    {
        cout<<"VERIFICATION: \n";
        cout<<"Username :";
        getline(cin, userConfirmation);
        system("cls");
        cout<<"VERIFICATION: \n";
        cout<<"Username: "<<userConfirmation<<endl;
        cout<<"Password: ";
        while (check2 != 0)
        {
            for ( ; ; )
            {
                passwordConfTemp = getch();
                if (passwordConfTemp == '\r')
                {
                    break;
                }
                passwordConfirmation += passwordConfTemp;
                cout<<"*";
            }
            cout<<endl<<passwordConfirmation<<"<<FOR TESTING"<< endl;
            break;
        }
        if (userConfirmation != user)
        {
            userVer += 1;
        }
        if (passwordConfirmation != password)
        {
            passwordVer += 1;
        }
        if ((userVer > 0) || (passwordVer > 0))
        {
            cout<<"Verification failed due to the following reasons: ";
            if (userVer > 0)
            {
                cout<<endl<<" - The username does not match the previous one you entered."<<endl;
                userVer = 0;
            }
            if (passwordVer > 0)
            {
                cout<<endl<<" - The password does not match the previous one you entered."<<endl;
                passwordVer = 0;

            }
            passwordConfirmation.clear();
            userConfirmation.clear();
            system("pause");
            system("cls");
            continue;
        }
        cout<<endl<<"Success!"<<endl;
        cout<<"Your account has been registered."<<endl;
        goto end;
    }

    end:
    return 0;
}