#include <iostream>
#include <string>
#include <cstdlib>
#include <cctype>
#include <algorithm>
#include <iomanip>
using namespace std;

//int binarytoDec_func(string);

int main()
{
	int choice;
	string num;
	string binaryNum;
	int converted = 0;
	bool invalidinput;

	do{
		cout << "Which calculation would you like to perform?" << endl;
		cout << "Press 1 to convert a Binary Number to Decimal" << endl;
		cout << "Press 2 to convert a Decimal Number to Binary" << endl;
		cout << "Press 3 to exit" << endl;
		cin >> choice;
	} while ((choice != 1) && (choice != 2) && (choice != 3));

	if (choice == 1)
	{
		do{
			invalidinput = false;
			cout << "Please input a binary number, 8 bits or less, to convert to decimal: " << endl;
			cin >> binaryNum;

			for (long i = 0; i < binaryNum.length(); i++)
			{
				char check = binaryNum[i];

				if (check == '0' || check == '1'){
					//int val = atoi(binaryNum.c_str());

				}
				else{
					cout << "Invalid input " << check << " is not a binary number" << endl;
					i = binaryNum.length();
					invalidinput = true;
				}
			}
		} while ((binaryNum.length() >= 8) || invalidinput == true);
	}

	if (choice == 2)
	{
		do{
			cout << "Please input a decimal number to convert to binary: " << endl;
			getline(cin, num);
			converted = atoi(num.c_str());
			if (converted == 0){
				cout << "This is not a valid number, please re-enter: ";
				getline(cin, num);
			}
		}while (converted == 0); //if converted is 0, loop again
	}

	if (choice == 3)
		return 0;
}