/*
Richard Morgan

CIS 125 - 71

Banking Program Part 1
This program will simulate a bank.
Update 1:  Adding branching logic
*/

#include <iostream>
#include <string>

using namespace std;

int mainMenu ();
void showBalances (float, float);
float getDeposit (float, string);
float deposit (float, float);
float getWithdrawl (float, string);
float withdrawl (float, float);
float getTransferAmount ();
void transfer (float &, float &);

int main ()
{
	//Declaration Block
	float savings = 567.82;
	float checking = 1947.29;
	int userEntry = 0;
	int accountSelection = 0;

	userEntry = mainMenu ();

	if (userEntry == 1) //View Balances
	{
		showBalances (savings, checking);
	}
	else
		if (userEntry == 2) //Deposit
		{
			//cout << "Inside Deposit" << endl;
			cout << "Welcome to the deposit function." << endl;
			cout << "Enter the account you wish to deposit into: " << endl;
			cout << "1. Savings" << endl;
			cout << "2. Checking" << endl;
			cin >> accountSelection;

			switch (accountSelection)
			{
				case 1:
					savings = getDeposit (savings, "savings");
					break;
				case 2:
					checking = getDeposit (checking, "checking");
					break;
				default:
					cout << "Bad entry.  Goodbye!" << endl;
			}
			showBalances (savings, checking);
		}
		else
			if (userEntry == 3) //Withdrawl
			{
				//cout << "Inside Withdrawl" << endl;
				cout << "Welcome to the withdrawl function." << endl;
				cout << "Enter the account you wish to withdraw from: " << endl;
				cout << "1. Savings" << endl;
				cout << "2. Checking" << endl;
				cin >> accountSelection;

				switch (accountSelection)
				{
					case 1:
						savings = getWithdrawl (savings, "savings");
						break;
					case 2:
						checking = getWithdrawl (checking, "checking");
						break;
					default:
						cout << "Bad entry.  Goodbye!" << endl;
				}
				showBalances (savings, checking);
			}
			else
				if (userEntry == 4) //Transfer
				{
					//cout << "Inside Transfer" << endl;
					cout << "Welcome to the transfer menu." << endl;
					transfer (savings, checking);
					showBalances (savings, checking);
				}
				else
					if (userEntry == 5) //Exit
					{
						cout << "Thank you for visiting the HFC Banking System." << endl;
						cout << "Have a great day!" << endl;
					}
					else //Bad Entry
					{
						cout << "Unrecognized entry.  Goodbye!" << endl;
					}

	system ("pause");

	return 0;
}

int mainMenu ()
{
	int choice = 0;

	cout << "Welcome to the HFC Banking System." << endl;
	cout << "Please make your selection: " << endl;
	cout << "1.  View Account Balances" << endl;
	cout << "2.  Deposit" << endl;
	cout << "3.  Withdrawl" << endl;
	cout << "4.  Transfer" << endl;
	cout << "5.  Exit" << endl;
	cin >> choice;

	return choice;
}

void showBalances (float sav, float check)
{
	cout << "Balance Inquiry: " << endl;
	cout << "Savings Balance: $" << sav << endl;
	cout << "Checking Balance: $" << check << endl;
}

float getDeposit (float balance, string account)
{
	float dep = 0.00;

	cout << "Please enter the amount you wish to deposit into " << account << ": $";
	cin >> dep;

	balance = deposit (balance, dep);

	return balance;
}

float deposit (float balance, float dep)
{
	balance = balance + dep;

	return balance;
}

float getWithdrawl (float balance, string account)
{
	float with = 0.00;

	cout << "Please enter the amount you wish to withdraw from " << account << ": $";
	cin >> with;

	balance = withdrawl (balance, with);

	return balance;
}

float withdrawl (float balance, float with)
{
	balance = balance - with;

	return balance;
}

void transfer (float &savings, float &checking)
{
	int account = 0;
	float amount = 0.00;

	cout << "Please enter the account you wish to transfer from: " << endl;
	showBalances (savings, checking);
	cout << "1. Savings" << endl;
	cout << "2. Checking" << endl;
	cin >> account;

	if (account == 1) //Transfer from Savings
	{
		amount = getTransferAmount ();
		savings = withdrawl (savings, amount);
		checking = deposit (checking, amount);
	}
	else
		if (account == 2) //Transfer from Checking
		{
			amount = getTransferAmount ();
			checking = withdrawl (checking, amount);
			savings = deposit (savings, amount);
		}
		else
		{
			cout << "Bad entry.  Goodbye!" << endl;
		}
}

float getTransferAmount ()
{
	float amt = 0.00;

	cout << "Enter the amount you wish to transfer: $";
	cin >> amt;

	return amt;
}