#define _CRT_SECURE_NO_DEPRECATE
#include <iostream>
#include <sstream>
#include <fstream>
#include <cmath>
#include <stdio.h>
#include <cstring>
#include <iomanip>
#include <string>
#include <vector>


using namespace std;

int main()
{
	string selection;

	do
	{
		//Main menu
		cout << "Count bytes in <file>" << endl;
		cout << "Count words in <file>" << endl;
		cout << "Copy <file> to <file>" << endl;
		cout << "Quit" << endl;

		//Getting user input, converting to lowercase
		cout << "Please Enter A Selection From Above: ";
		getline(cin, selection);

		for (int upper = 0; upper < selection.length(); upper++) {
			selection[upper] = tolower(selection[upper]);
		}

		if (selection == "count bytes in \"input.txt\"")
		{
			//Counting bytes in file
			std::ifstream::pos_type filesize(const char* filename)
			{
				std::ifstream in(filename, std::ifstream::ate | std::ifstream::binary);
				in.seekg(0, in.end);

				return in.tellg();
			}
		}

		else if (selection == "count words in \"input.txt\"")
		{
			//Counting the words in the file
			ifstream input("input.txt");
			int words = 0;
			string word;

			while (input >> word) {
				++words;
			}
			cout << "There are this name words in the file: " << words << endl;
		}

		else if (selection == "copy \"input.txt\" to \"output.txt\"")
		{
			//Copying input.txt to output.txt
			ifstream input("input.txt");
			ofstream output("output.txt");
			string stringy;
			getline(input, stringy);
			output << stringy << endl;
			input.close();
			output.close();
			cout << "Copying successful!" << endl;
		}
		// Quitting the program
		else if (selection == "quit")
		{
			cout << "Quitting..." << endl;
		}
		// Throwing errors
		else
		{
			cout << "Invalid input." << endl;
		}
	} while (selection != "quit");

	return 0;
}