#ifndef CURRENCY_H
#define CURRENCY_H

#include <iostream>
#include <iomanip>
#include "clear.hpp"

using std::cout;
using std::cin;
using std::endl;
using std::fixed;
using std::setprecision;

inline void ConvertOther(int convertTo, double &value) {

	switch (convertTo)
	{
	case 2:
		value = value * 1.377;
		break;
	case 3:
		value = value * .9398;
		break;
	case 4:
		value = value * .8032;
		break;
	case 5:
		value = value * 83.61;
		break;
	case 6:
		value = value * 1.547;
		break;
	case 7:
		value = value * .9144;
		break;
	default:
		break;
	}

}

inline void ConvertUSD(int original, double &value) {

	switch (original)
	{
	case 2:
		value = value / 1.377;
		break;
	case 3:
		value = value / .9398;
		break;
	case 4:
		value = value / .8032;
		break;
	case 5:
		value = value / 83.61;
		break;
	case 6:
		value = value / 1.547;
		break;
	case 7:
		value = value / .9144;
		break;
	default:
		break;
	}
}

inline void CurrencyName(int convertTo) {

	switch (convertTo)
	{
	case 1:
		cout << "USD";
		break;
	case 2:
		cout << "CAD";
		break;
	case 3:
		cout << "EUR";
		break;
	case 4:
		cout << "GBP";
		break;
	case 5:
		cout << "INR";
		break;
	case 6:
		cout << "AUD";
		break;
	case 7:
		cout << "CHF";
		break;
	default:
		break;
	}
}

inline void Convert(int original, int convertTo, double &value) {

	ConvertUSD(original, value);
	ConvertOther(convertTo,value);

}

inline int ValidateInput(int input) {

	cin >> input;

	while (input < 1 || input > 7)
	{
		cout << "\nInvalid Option, please pick again: ";
		cin >> input;
	}

	return input;
}

inline void Input (int &original, int &convertTo, double &value)
{
	cout << "*********************************************************************\n";
	cout << "1. USD\n2. CAD\n3. EUR\n4. GBP\n5. INR\n6. AUD\n7. CHF\n";
	cout << "Pick the number of the input currency: ";
	original = ValidateInput(original);
	cout << "\nWhat is the value of this currency to two decimal places: ";
	cin >> value;
	cout << "\nPick the number of the currency to convert to: ";
	convertTo = ValidateInput(convertTo);
}

inline bool ConvertMore()
{
	char again;

	cout << "\nWould you like to convert more currency? (Y/N): ";
	cin >> again;

	if (again == 'Y')
		return true;
	else
		return false;
}

inline void PickCurrency() {

	int original = 0;
	double value = 0;
	int convertTo = 0;

	ClearScreen();

	Input(original, convertTo, value);

	if (original != convertTo)
		Convert(original, convertTo, value);

	ClearScreen();

	cout << "The converted value is " << fixed << setprecision(2) << value << " in ";
	CurrencyName(convertTo);
	cout << ".\n";

	if (ConvertMore() == true)
		PickCurrency();

}






























#endif