#include <iostream>
#include <string>
#include <vector>
using namespace std;

bool testPal(const string& s)
{
//tests for palindrome
    string frontToBack(s.rbegin(), s.rend());
    return s == frontToBack;
}

string removeSpace(string line)
// removes whitespace for phrases
{
	while (1)
	{
		int word = line.find(' ');
	if (word == -1 )
	{
		break;
	}
	line = line.erase(word, 1);
 }
return line;
}

int main()
{
// Inititizations
	string word, word2;
    char yesno = 'Y', wordPhrase = 'W';
// welcome message
    cout << "\nWelcome to the palindrome program.\n"
		 << "Are you testing for Word or Phrase palindromes?(Word is default)\n";
	cin >> wordPhrase;
	cin.ignore(INT_MAX, '\n');
	wordPhrase = toupper(wordPhrase);
//outputs either word or phrase depending on selection
//defaults to word
	switch(wordPhrase)
	{
		case 'W':
			cout << "Word option selected.\n";
			break;
		case 'P':
			cout << "Phrase option selected.\n";
			break;
		default:
			cerr << "Invalid input. Reverting to word.";
			wordPhrase = 'W';
			break;
	}
// loop until broken by yesno
    while ('Y' == yesno)
    {
        for(int i = 0; i < 1 ; i++)
        {
			cout << "\nWhat is your ";
//outputs word or phrase depending on input to make
//it more user friendly
			if (wordPhrase == 'W')
			{
				cout << "word?\n";
			}
			if (wordPhrase == 'P')
			{
				cout << "phrase?\n";
			}
			getline(cin, word);
			word2 = word;
			if ('P' == wordPhrase)
			{
				word = removeSpace(word);
			}
// output depending on isPalindrome function
        if (testPal(word))
			{
				cout << "\n" << word2 << " is a palindrome.";
			}
		else
			{
				cout << "\n" << word2 << " isn't a palindrome.";
			}
        cout << "\n\nAgain?(Y/N)\n";
        cin >> yesno;
        cin.ignore(INT_MAX, '\n');
		yesno = toupper(yesno);
        }
    }
// exit message
    cout << "\nHave a nice day. Exiting...\n";
    return 0;
}