#include <iostream>

#include "func1.cpp"
#include "func2.cpp"

using namespace std;

class Function {
public:
    void (*function_pointer)();

    string description;

    Function(void (*function_pointer)(), string description) {
        this->function_pointer = function_pointer;
        this->description = description;
    }
};

int main() {
    Function *functions[] = {
            new Function(&function1, "The goal of this task is to print hello"),
            new Function(&function2, "The goal of this task is to print hello 2")};
    int number_of_functions = sizeof(functions) / sizeof(*functions);

    while (true) {
        cout << "Functions: " << endl;
        cout << "0. Finish" << endl;
        for (int i = 0; i < number_of_functions; i++) {
            cout << i + 1 << ". " << functions[i]->description << endl;
        }
        cout << endl;

        int function_number;
        cout << "Function number: ";
        cin >> function_number;
        cout << endl;

        if (function_number == 0) {
            break;
        } else if (function_number < 1 || function_number > number_of_functions) {
            cout << "--" << endl;
            cout << "Invalid function number" << endl;
            cout << "--" << endl << endl;
        } else {
            cout << "--" << endl;
            // call function
            (*functions[function_number - 1]).function_pointer();
            cout << "--" << endl << endl;
        }
    }

    // Clean
    for (int i = 0; i < number_of_functions; i++) {
        delete functions[i];
    }

    return 0;
}