#include "stdafx.h"
#include <iostream>
#include "stdlib.h"
#include <string>
#include <iomanip>
#include <conio.h>

using namespace std;


void runUsername();
void runPassword();
void menuSelections();
void helpMenu();
void customerDetails();
void MainExit();
void HelpExit();
int gymid, tele;
string name, address, email;

int main()
{
	runUsername();
	return 0;
}

void runUsername()
{
	int correct_username = 1990;
	int username = 0;
	int attempt = 1;

	while (attempt <= 3) {
		cout << "Enter your username: ";
		cin >> username;
		attempt = attempt + 1;

		if (cin.fail())
		{
			cin.clear();
			cin.ignore(INT_MAX, '\n');
			cout << "Input Error. Numeric values only" << endl;
			runUsername();
		}
		else if (username != correct_username) {
			cout << "Incorrect password combination. Please try again." << "\n";
			runUsername();
		}
		else
		{
			break;
		}
	}
	if (attempt >= 3)
	{
		if (username == correct_username)
		{
			cout << "Access granted." << endl;
			system("Pause");
			runPassword();
		}
		else
		{
			exit(0);
		}
	}
	else
	{
		cout << "Access granted." << endl;
		system("Pause");
		runPassword();
	}
}

void runPassword()
{
	int correct_password = 1998;
	int password = 0;
	int attempt = 1;

	while (attempt <= 3) {
		cout << "Enter your password: ";
		cin >> password;
		attempt = attempt + 1;

		if (cin.fail())
		{
			cin.clear();
			cin.ignore(INT_MAX, '\n');
			cout << "Input Error. Numeric values only" << endl;
			runPassword();
		}
		else if (password != correct_password) {
			cout << "Incorrect password combination. Please try again." << "\n";
			//runPassword();
		}
		else
		{
			break;
		}
	}
	if (attempt >= 3)
	{
		if (password == correct_password)
		{
			cout << "Access granted." << endl;
			system("Pause");
			menuSelections();
		}
		else
		{
			exit(0);
		}
	}
	else
	{
		cout << "Access granted." << endl;
		system("Pause");
		menuSelections();
	}
}

void menuSelections()
{
	int MainMenuOptions;
	//do-while loop starts here.that display menu again and again until user select to exit program
	do
	{
		cout << "\n" << "|  Menu Items                 |";
		cout << "\n" << "|                             |";
		cout << "\n" << "|  1. Help Menu               |";
		cout << "\n" << "|  2. Customer Details        |";
		cout << "\n" << "|  3. Do Loop (Post Check)    |";
		cout << "\n" << "|                             |";
		cout << "\n" << "|  0. Exit program            |";
		cout << "\n" << "|                             |" << "\n";

		for (int i = 0; i < 30; ++i)
		{
			cout << "-";
		}
		//Prompting user to enter an option according to menu
		cout << "\n" << "Please select an option : ";
		cin >> MainMenuOptions;  // taking option value as input and saving in variable "option"
		if (cin.fail())
		{
			cin.clear();
			cin.ignore(INT_MAX, '\n');
			cout << "Input Error. Numeric values only" << endl;
			system("pause");
			system("cls");
			menuSelections();
		}
		else
		{
			switch (MainMenuOptions)
			{
			case 1:
				helpMenu();
				break;
			case 2:
				customerDetails();
				break;
			case 3:
				break;
			case 0:
				break;
			default:
				cout << "\n" << "Invalid Option entered" << "\n";
				system("pause");
				system("cls");
				menuSelections();
				break;
			}
		}
	} while (MainMenuOptions != 1 && MainMenuOptions != 2 && MainMenuOptions != 3 && MainMenuOptions != 0);
}

void helpMenu()
{
	int helpMenu;

	do
	{
		system("cls");
		cout << "\n" << "  Help Menu Items                      ";
		cout << "\n" << " 							       ";
		cout << "\n" << "  1. How to calculate BMR?       ";
		cout << "\n" << "  2. How to calculate BMI?  ";
		cout << "\n" << "  3. How to calculate kilocalories? ";
		cout << "\n" << "  4. How to calculate calories?        ";
		cout << "\n" << "  5. Why customer details are needed?        ";
		cout << "\n" << "  6. Edit this?        ";
		cout << "\n" << "                                  " << endl;
		cout << "\n" << "  0. Exit";

		for (int i = 0; i < 30; ++i)
		{
			cout << "-";
		}

		cout << "\n" << "Please select an option :";
		cin >> helpMenu;
		if (cin.fail())
		{
			cin.clear();

			cout << "Input Error. Numeric values only" << endl;
			system("pause");
			system("cls");
			menuSelections();
		}
		else
		{
			switch (helpMenu)
			{
			case 1:
				system("cls");
				cout << "\n\n" << "To calculate BMR you have to use this formula BMR = 88.362 + (13.397 x weight in kg) + (4.799 x height in cm)–(5.677 x age in years)" << endl;
				system("pause");
				//HelpExit();
				break;
			case 2:
				system("cls");
				cout << "\n\n" << "To calculate BMI you have to use this formula BMI = Divide Weight (KG) by Height (M) Divide by your Height (M) again" << endl;
				system("pause");
				//HelpExit();
				break;
			case 3:
				system("cls");
				cout << "\n\n" << "To calculate kilocalories you have to use this formula" << endl;
				system("pause");
				//HelpExit();
			case 4:
				system("cls");
				cout << "\n\n" << "To calculate calories you have to use this formula" << endl;
				system("pause");
				//HelpExit();
			case 5:
				system("cls");
				cout << "\n\n" << "You're required to pay 20% VAT" << endl;
				system("pause");
				//HelpExit();
			case 6:
				system("cls");
				cout << "\n\n" << "You're required to pay 20% VAT" << endl;
				system("pause");
				//HelpExit();
			case 0:
				system("cls");
				HelpExit();
				break;
			default:
				system("cls");
				cout << "\n" << "Invalid Option entered" << "\n";
				system("pause");
				system("cls");
				menuSelections();
				break;
			}
		}
	} while (helpMenu != 1 && helpMenu != 2 && helpMenu != 3 && helpMenu != 0);
}

void customerDetails() {
	for (int i = 0; i < 32; ++i) { cout << "-"; }
	cout << "\n" << "Customer Details" << endl;
	for (int i = 0; i < 32; ++i) { cout << "-"; }
	cout << "\n" << "Please enter your gym id: ";
	cin >> gymid;
	cout << "\n" << "Please enter your name: ";
	cin >> name;
	cout << "\n" << "Please enter your phone number: ";
	cin >> tele;
	cout << "\n" << "Please enter your email address: ";
	cin >> email;
	cout << "\n" << "Please enter your address: ";
	cin >> address;

	system("pause");
	system("cls");
	menuSelections();
}

void customerProfile() {




}

void MainExit() {
	char choice;
	cout << "\n\n\n" << "Do you want to go back to the main menu (y or n):";
	cin >> choice;
	if (choice == 'Y' || choice == 'y') {
		system("cls");
		menuSelections();
	}
	else if (choice == 'N' || choice == 'n') {
		exit(0);
	}
	else {
		cout << "\n" << "Invalid letter.Only accept Y or N";
		exit(0);
	}
}
void HelpExit() {
	char choice;
	cout << "\n\n\n" << "Do you want to go back to the help menu (y or n):";
	cin >> choice;
	if (choice == 'Y' || choice == 'y') {
		system("cls");
		helpMenu();
	}
	else if (choice == 'N' || choice == 'n') {
		MainExit();
	}
	else {
		cout << "\n" << "Invalid letter.Only accept Y or N";
		exit(0);
	}
}