#include "bob.h"

#include <algorithm>
#include <locale>
#include <string>

namespace bob {


const char * hey(const char input[])
{
    using namespace std;

    const string str(input);

    string::const_reverse_iterator i;

    i = find_if(str.crbegin(), str.crend(), [](char c){return !isspace(c);});

    if (i == str.crend())
        return "Fine. Be that way!";

    bool is_question = *i == '?';

    i = find_if(i, str.crend(), [](char c){return isalpha(c);});

    bool has_alpha = i != str.crend();

    bool is_uppercase = all_of(i, str.crend(),
            [](char c){return isupper(c) || !isalpha(c);});

    if (has_alpha && is_uppercase)
        return "Whoa, chill out!";

    if (is_question)
        return "Sure.";

    return "Whatever.";
}

}