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Untitled.cpp - Panier d'achats avec Set-OR

using namespace std;

static int getUniqueIdentifier();

class PanierDAchats;

class Commande {
public:
  explicit Commande(function<void(PanierDAchats *)> methode)
      : methode(methode) {}
  void executer(PanierDAchats *panierCible) { panierCible->methode(); }

private:
  function<void()> methode
};

class PanierDAchats {
public:
  void ajouter(int ISBN, int nombreDExemplaires);
  void supprimer(int ISBN, int nombreDExemplaires);
  void mettreAJour(Commande commande) { this }

private:
  // tuple est composé du ISBN, nombre de liver et identifiant unique.
  vector<tuple<int, int, int>> etat;
  void supprimer(int ISBN);

  // méthodes réseau
  void envoyerMiseAJour(Commande commande);
  void envoyerMiseAourEtAttendreSynchronisation(Commande commande);
};

PanierDAchats::ajouter(int ISBN, int nombreDExemplaires) {
  etat.push_back(make_tuple(ISBN, nombreDExemplaires, getUniqueIdentifier()));
  envoyerMiseAJour(
      Commande(bind(PanierDAchats::ajouter, ISBN, nombreDExemplaires)));
}

PanierDAchats::supprimer(int ISBN, int nombreDExemplaires) {
  auto ancienNombreDExmplaires = 0;
  for (element : etat) {
    if (get<0>(element) == ISBN) {
      ++ancienNombreDExmplaires;
    }
  }
  auto nouveauNombreDExemplaires = ancienNombreDExmplaires - nombreDExemplaires;

  assert(nouveauNombreDExemplaires >= 0);

  supprimer(ISBN);
  envoyerMiseAourEtAttendreSynchronisation(
      Commande(bind(PanierDAchats::ajouter, ISBN)));

  if (nouveauNombreDExemplaires == 0) {
    return;
  }

  // nouveauNombreDExemplaires > 0
  ajouter(ISBN, nouveauNombreDExemplaires);
  envoyerMiseAJour(
      Commande(bind(PanierDAchats::ajouter, ISBN, nouveauNombreDExemplaires))
}

PanierDAchats::supprimer(int ISBN) {
  auto isbnMatches =
      [ISBN](tuple<int, int, int> element) { return get<1>(element) == ISBN; };
  auto it = find_if(etat.begin(), etat.end(), isbnMatches);
  while (it != etat.end()) {
    etat.remove(it);
    it = find_if(etat.begin(), etat.end(), isbnMatches);
  }
}

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