restaurant.cpp

#include <iostream>
#include <cassert>
#include <vector>

using namespace std;

class Service {
  vector<string> menu;
  unsigned int places;
  unsigned int available_places;
  vector<int> commandes;

  public:
    Service();
    void show_menu();
    void show_choice(int item);
    bool check_item(int item);
    bool take_available_places(unsigned int nb_clients);
    void take_order(int item);
    void present_plates();
    void payment();
    int nb_orders();
    int next_order();
};

Service::Service() {
  places = 10;
  available_places = 10;

  menu.push_back("bolognaise");
  menu.push_back("cuisses de grenouille");
  menu.push_back("omelette");
  menu.push_back("tacos");
  menu.push_back("nems");
}

void Service::show_menu() {
  cout << endl << "Voici le menu:" << endl;

  for(int i = 0; i < menu.size(); i++) {
    cout << i << " - " << menu[i] << endl;
  }
}

void Service::show_choice(int item) {
  cout << "vous avez choisi: " << menu[item] << endl;
}

bool Service::check_item(int item) {
  return item >= 0 && item < menu.size();
}

bool Service::take_available_places(unsigned int nb_clients) {
  assert(available_places <= places);

  if((nb_clients > 0) &&
      (nb_clients <= available_places)) {
    available_places = available_places - nb_clients;
    return true;
  } else {
    return false;
  }
}

void Service::take_order(int item) {
  commandes.push_back(item);
}

int Service::nb_orders() {
  return commandes.size();
}

int Service::next_order() {
  int item = commandes.back();
  commandes.pop_back();
  return item;
}

void Service::present_plates() {
}

void Service::payment() {
}

class Kitchen {
  vector<int> orders;
  Service& waiter;

  public:
    Kitchen(Service& service);
    void receive_orders();
    void prepare_orders();
    void notify();
};

Kitchen::Kitchen(Service& s) : waiter(s) {

}

void Kitchen::receive_orders(){
  for(int i = 0; i < waiter.nb_orders(); i++) {
    orders.push_back(waiter.next_order());
  }
}

void Kitchen::prepare_orders(){}

void Kitchen::notify(){}

int main() {
  Service waiter;
  Kitchen kitchen(waiter);

  while(true) {

    // service part

    cout << "Bonjour!" << endl;
    cout << "Combien êtes-vous?" << endl;

    int nb_clients;
    cin >> nb_clients;

    if ( !waiter.take_available_places(nb_clients) ) {
      cout << endl << "il n'y a plus de place" << endl;
    } else {
      cout << endl << "asseyez-vous svp" << endl;

      waiter.show_menu();

      int i = 0;
      while (i < nb_clients) {

        cout << "Client " << i << ", que désirez-vous?" << endl;

        int item = -1;
        while( !waiter.check_item(item) ) {
          cin >> item;

          if( !waiter.check_item(item) ) {
            cout << " cet élément n'existe pas" << endl;
          }
        }
        waiter.show_choice(item);
        waiter.take_order(item);
        i = i + 1;
      }

    }

    // kitchen part
    kitchen.receive_orders();
    kitchen.prepare_orders();
    kitchen.notify();

    waiter.present_plates();
    waiter.payment();
  }

}

woaw
j'adore ce restaurant *****