#include <iostream>
using namespace std;

int pin, new_p, x, y, npin, upin, userin, val, a, b, c, d;
int pin4all[100];

int new_User();
int choice();
int old_User();
int return_Menu();

int refresh_Time(){
}

int choice(){
	cout << "PIYUTEK BANK\n" << endl;
	cout << "       [1] New User\n       [2] Registered User" << endl;
	cout << "\n----------------------------------" << endl;
	cout << "Select user type: ";
	cin >> userin;

	if(userin == 1){
		new_User();
	}
	else{
		old_User();
	}
}

int new_User(){
	cout << "\n-------REGISTERING NEW USER-------" << endl;
		cout << "Register your pin: ";
		cin >> pin;
		cout << "\n** You're now registered! **\n" << endl;
		cout << "----------------------------------" << endl;
		cout << "Enter now your pin: ";
		cin >> npin;
			if(pin == npin){
				system("cls");
				cout << "PIN NUMBER: " << npin << endl;

				if(pin==npin){
					cout << "\nPin verification: YES" << endl;
				}
				else{
					cout << "\nPin verification: NO" << endl;
				}

				cout << "\nSELECT PROCESS:\n" << endl;
				cout << "       [1] Withdraw"<< endl;
				cout << "       [2] Balance Inquiry"<< endl;
				cout << "       [3] Change Pin" << endl;
				cout << "       [4] Validate" << endl;
				cout << "\n----------------------------------" << endl;
				cout << "Choose process number you wish to perform: ";
				cin >> x;
			}
			else{
				cout << "Error! your pin doesn't match." << endl;
			}
	if (x==1){
		system("cls");
			cout <<" Wala pang Function!" << endl;
		}
	if (x==2){
		system("cls");
			cout << " Wala pang Function! " << endl;
		}
	if (x==3){
		system("cls");
			cout << "-------Changing Pin-------\n" << endl;
			cout << "You're now changing your pin: ";
			cin >> upin;
			upin == npin;
			system("cls");
			cout << "---------PIN CHANGED--------" << endl;
			cout << "\nSuccess! your new pin now is " << upin << endl;
			cout << "\n----------------------------\nChoose process you wish to proceed." << endl;
			cout << "1. Return to Main Menu" << endl;
			cout << "2. Back" << endl;
			cout << "3. Exit" << endl;
			cin >> y;
	if (y==1){
		system("cls");
		return choice();
	}

	if (y==2){
		system("cls");
		cout << "You're now exiting this program.";
		return 0;
	}
}
	if (x==4){
		system("cls");
		    cout << "You are now going to validate your pin." << endl;
			cout << "Validate pin." << endl;
			cout << "\n----------------------------------" << endl;
			cout << "[1] Yes" << endl;
			cout << "[2] No" << endl;
			cout << "----------------------------------" << endl;
			cout << "\n----------PIN VALIDATING----------" << endl;
			cin >> val;
	if(pin==npin && val==1){
		system("cls");
			cout << "Success! your pin is now Validated." << endl;
	}
	if(pin!=npin || val==2){
		system("cls");
			cout << "Error! your pin don't match." << endl;
	}
			cout << "------------------------------\nChoose process you wish to proceed." << endl;
			cout << "1. Return to Main Menu" << endl;
			cout << "2. Back" << endl;
			cout << "3. Exit" << endl;
			cin >> y;
	if (y==1){
		system("cls");
		return choice();
	}
	if (y==2){
		system("cls");
		cout << "You're now exiting this program.";
		return 0;
	}
	return choice();
}
}

int return_Menu(){

}

int old_User(){

		cout <<"Welcome back my dear customer!" << endl;
		cout << "Enter your pin: ";
		cin >> npin;
		system("cls");
		cout << "## SELECT PROCESS ##" << endl;
		cout << "[1] Withdraw"<< endl;
		cout << "[2] Balance Inquiry"<< endl;
		cout << "[3] Change Pin" << endl;
		cout << "[4] Validate" << endl;
		cout << "Choose process number: ";
		cin >> x;

	if (x==1){
		system("cls");
			cout<<" Wala pang Function!" << endl;
			cout<<" ";
	}
	if (x==2){
		system("cls");
			cout << " Wala pang Function! " << endl;
			cout << " ";
	}
	if (x==3){
		system("cls");
			cout << "Changing Pin" << endl;
			cout << "You're now changing pin: ";
			cin >> upin;
			upin == npin;
			cout << "Your new pin now is " << upin << endl;
			cout << "****************************" << endl;
			cout << "----------------------------\nChoose process you wish to proceed." << endl;
			cout << "1. Return" << endl;
			cout << "2. Exit" << endl;
			cin >> y;
	if (y==1){
		system("cls");
		return choice();
	}
	if (y==2){
		system("cls");
			cout << "You're now exiting this program.";
		return 0;
	}
}
	if(x==4){
		system("cls");
	if(pin==npin)
	{
		system("cls");
			cout << "Congratulations! You're now Validated." << endl;
	}
	else{
		system("cls");
			cout << "Error! your pin don't match!" << endl;
	}

			cout << "------------------------------\nChoose process you wish to proceed." << endl;
			cout << "1. Return" << endl;
			cout << "2. Exit" << endl;
			cin >> y;
	if (y==1){
		system("cls");
		return main();
	}
	if (y==2){
		system("cls");
			cout << "You're now exiting this program.";
		return 0;
	}
	}
}

int main(){
	choice();
	bool(true){
		return return_Menu();
	}
}