void functionname(string strarray[]);

#include <iostream>
#include <stdlib.h>

using namespace std;

//Function Prototypes
int Signin (string[], string[]);
void Menu (int ID);
void ViewBalance ();
void Deposit ();
void Withdrawal ();
void Transfer ();


void main (void)
{
	string Username[] = {"Ohlone1","Ohlone2","Ohlone3","Ohlone4","Ohlone5"};
	string PWmain[] = {"Ohlone1pw", "Ohlone2pw", "Ohlone3pw", "Ohlone4pw", "Ohlone5pw"};
	int userID;
		
	cout << "WELCOME TO PROGRAMMING BANK!\n\n";
	cout << "~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~\n\n";

	userID=Signin (Username, PWmain);	

	Menu (userID);
}

int Signin (string userID[], string PWuser[])
{
	string ID, PW;	
	
	while(1) //Infinite while loop.
	{
		cout << "Please enter your username: \n";
		cin.width(32);
		cin >> ID;	
		for (int i =0; i < 5; i++)
		{ 
			if(ID==userID[i]) 
			{
				for(;;) //Infinite for loop
				{
					cout<<"Please enter "<<userID[i]<<"'s Password."<<endl;
					cin >> PW;				
					if (PW==PWuser[i])
					{
						cout << "YOU'RE LOGGED IN!\n";
						return i;
					}
				}//end infinite for loop
			}
		}//end for loop cycling through User IDs.
		cout<<"Invalid Login, please try again."<<endl; // Entry was not any of the five known.
	}//end while loop
	return (-1);//error condition. Should be unreachable.
}

void Menu (int ID) 
{
	int choice; 

	while (1)
	{
		cout << "\t1. View Your Balance.\n";
		cout << "\t2. Deposit.\n";
		cout << "\t3. Withdraw.\n";
		cout << "\t4. Transfer.\n";
		cout << "\t5. Exit.\n\n";
		cout << "Please enter your choice: \n";

		cin >> choice; 
		
		switch (choice){
		case 1: 
			
				//cout << "Your checking account has : " << << endl;
				//cout << "Your saving account has : " <<  << endl;
			
		case 2:
			
				//deposit
			

		case 3:
			
				//withdrawal
			

		case 4:
			
				//transfer

		case 5:
			//exit. Better to have this explicit than rely on default. 
			//In this case, 6 will make the person exit the program. Not a good thing
			cout << "Thank you for using this program.\n";
			return; //Exits menu(), which then exits the program. 

		default:
			cout << "Invalid selection; please select another option.\n";
			break;
		}//end switch		
	}//end while loop. This lets you keep choosing until choice==5.
}//end menu()