/*

* Generated as part of the password manager effort

*/

#include <iostream>

#include <string>

#include <vector>

using namespace std;

int f(double a) {

cout << "f(): " << a*2 << ", ";

return a*2.0;

}

int g(double a) {

cout << "g(): " << a*3 << ", ";

return a*3.0;

}

struct Menu_item {

int identifier {};

int (* ptr_function)(double) {}; // a pointer to a function which accepts a double and returns an int.

vector<Menu_item> * ptr_sub_menu {nullptr};

// Menu_item(int id_, int (* pt_) (double), Menu_item mi_): identifier(id_), ptr_function(pt_) {

// ptr_sub_menu = & mi_; // todo: handle the lifetime of this object

// }

// Menu_item(int id_, int (* pt_) (double), Menu_item * ptr_mi_): identifier(id_), ptr_function(pt_), ptr_sub_menu(ptr_mi_) {}

};

int main()

{

vector<Menu_item> menu;

menu.emplace_back( Menu_item {123, &f, nullptr});

menu.emplace_back( Menu_item {124, &g, nullptr});

vector<Menu_item> menu_super;

menu_super.emplace_back( Menu_item {125, &f, &menu});

menu_super.emplace_back( Menu_item {125, &g, &menu});

cout << "test directly calling a menu: \n";

for (auto & i : menu) {

cout << "call: " << i.ptr_function(5) << endl;

}

cout << "test calling the main menu and then items of a sub menu: \n";

for (auto & i : menu_super) {

cout << "call: " << i.ptr_function(6) << endl;

vector<Menu_item> sub_menu {};

if ( i.ptr_sub_menu != nullptr ) {

sub_menu = *(i.ptr_sub_menu);

for (auto &j : sub_menu) {

cout << "sub_call: " << j.ptr_function(7) << endl;

}

}

}

cout << "###" << endl;

return 0;

}