#include <iostream>
#include <string>
#include <cctype>

using namespace std;

int countWords(string);
int countConsonants(string);

int main() {

    char selection = 0;
    string input;
    char ch = 'a';
    input = ch;

    cout << "Please enter a word, a sentence, or a string of numbers.\n" << endl;
    getline(cin, input);

    do {

        cout << "USE THIS MENU TO MANIPULATE YOUR STRING\n"
            << "---------------------------------------\n"
            << "1) Inverse String\n"
            << "2) Reverse String\n"
            << "3) To Uppercase\n"
            << "4) Count Number Words\n"
            << "5) Count Consonants\n"
            << "6) Enter a Different String\n"
            << "7) Print the string\n"
            << "Q) Quit\n" << endl;

        cin >> selection;
        cin.ignore();

        switch (selection) {

        case 49:
            for (int i = 0; i <= input.length(); ++i) {
                if (isupper(input[i])) {
                    input[i] = tolower(input[i]);
                }
                else if (islower(input[i])) {
                    input[i] = toupper(input[i]);
                }
            }
            break;
        case 50:
            for (int j = input.length() - 1; j >= 0; --j) {

            }
            break;
        case 51:
            for (int o = 0; o <= input.length(); ++o) {
                if (islower(input[o])) {
                    input[o] = toupper(input[o]);
                }
            }
            break;
        case 52:
            countWords(input);
            break;
        case 53:
            countConsonants(input);
            break;
        case 54:
            cout << "Enter a different string : \n";
            getline(cin, input);
            break;
        case 55:
            cout << input << endl;
            break;
        case 'q':
            break;
        case 'Q':
            break;
        default:
            cout << "Invalid selection. Please try again." << endl;
        }
    } while (selection != 'Q' && selection != 'q');

    cout << "You have chosen to quit the program. Thank you!" << endl;
}
int countWords(string input) {

    int sum = 1;

    for (int i = 0; i <= input.length(); ++i) {
        if (isspace(input[i])) {
            sum++;
        }
    }
    cout << "The string " << "\"" << input << "\"" << " has " << sum << " word(s) " << "\n\n";
    return sum;

}
int countConsonants(string input) {

    int sum = 0;

    for (int e = 0; e <= input.length(); ++e) {

        if (input[e] != 'a' && input[e] != 'A' &&
            input[e] != 'e' && input[e] != 'E' &&
            input[e] != 'i' && input[e] != 'I' &&
            input[e] != 'o' && input[e] != 'O' &&
            input[e] != 'u' && input[e] != 'U' &&
            input[e] != '\0') {

            ++sum;
        }
    }
    cout << "The number of consonants in the string is " << sum << "." << endl;
    return sum;
}