TP8: Pizzeria

TP8/Pizzeria/main.cpp

@@ -0,0 +1,265 @@
+#include <iostream>
+#include <fstream>
+#include <map>
+#include <list>
+#include <string>
+#include <iomanip>
+#include <vector>
+
+using namespace std;
+
+class Base {
+	string nom;
+	vector<string> ing;
+public:
+	string getNom() const { return nom; }
+	vector<string> getIng() { return ing; }
+
+	bool operator=(Base b) { return b.nom == nom; }
+	bool operator<(Base b) const { return nom < b.nom; }
+
+	void lecture(ifstream& f);
+	void saisie();
+	void affichage();
+};
+
+class Pizza : public Base {
+public:
+	bool contient_allergene(string allergene);
+	float getPrix();
+};
+
+class Client : public Base {
+public:
+	bool est_allergique(Pizza p);
+};
+
+
+
+template <class C, class T>
+void lecture(C& c, const string name) {
+	ifstream f(name);
+
+	if (!f.is_open()) {
+		cout << "Erreur lors de la lecture du fichier" << endl;
+		exit(1);
+	}
+
+	int N;
+	f >> N; f.ignore();
+	while ((N--) > 0) {
+		T t;
+		t.lecture(f);
+		c.push_back(t);
+		f.ignore();
+	}
+}
+
+void Base::lecture(ifstream& f) {
+	getline(f, nom, ';');
+	int N;
+	f >> N; f.ignore();
+	while ((N--) > 0) {
+		string t;
+		getline(f, t, ';');
+		ing.push_back(t);
+	}
+}
+
+template <class T>
+void afficher(T t, int w) {
+	cout << left << setw(w) << t << " ";
+}
+
+void Base::affichage() {
+	cout << nom << " : ";
+	
+	cout << "(";
+	for (int i = 0; i < ing.size()-1; i++) {
+		cout << ing[i] << ", ";
+	}
+	if (ing.size() > 0)
+		cout << ing[ing.size()-1];
+	cout << ")";
+}
+
+void Base::saisie() {
+	cout << "Nom : ";
+	getline(cin, nom);
+	int N;
+	cout << "Nbr ing : ";
+	cin >> N; cin.ignore();
+	for (int i = 0; i < N; i++) {
+		string s;
+		cout << "Ing" << (i + 1) << " : ";
+		getline(cin, s);
+		ing.push_back(s);
+	}
+}
+
+float Pizza::getPrix() {
+	return getIng().size() * 2.0;
+}
+
+
+template <class C>
+void affichage(C c) {
+	for (auto a : c) {
+		a.affichage();
+		cout << endl;
+	}
+	cout << endl;
+}
+
+bool Client::est_allergique(Pizza p) {
+	for (string ing : getIng()) {
+		if (p.contient_allergene(ing))
+			return true;
+	}
+	
+	return false;
+}
+
+bool Pizza::contient_allergene(string ing) {
+	for (string i : getIng()) {
+		if (ing == i)
+			return true;
+	}
+	return false;
+}
+
+void pizza_alergenes(multimap<Client, Pizza>& mp, vector<Pizza> pizzas, list<Client> clients) {
+	for (Client c : clients) {
+		for (Pizza p : pizzas) {
+			if (c.est_allergique(p))
+				continue;
+			mp.insert(make_pair(c, p));
+		}
+	}
+}
+
+void affiche_map(multimap<Client, Pizza> mp, list<Client> clients) {
+	/* auto it = mp.begin();
+	 while (it != mp.end()) {
+		Client c = it->first;
+		cout << c.getNom() << " : " << endl;
+		int i = 1;
+		while (it != mp.end() && it->first.getNom() == c.getNom()) {
+			cout << "   ";
+			cout << "(" << i << ") : ";
+			it->second.affichage();
+			cout << endl;
+			it++; i++;
+		}
+		cout << endl;
+	} */
+	clients.sort();
+	for (Client c : clients) {
+		cout << c.getNom() << " : " << endl;
+		int i = 0;
+		auto r = mp.equal_range(c);
+		for (; r.first != r.second; r.first++) {
+			cout << "   ";
+			cout << "(" << i << ") : ";
+			r.first->second.affichage();
+			cout << endl;
+			i++;
+		}
+	}
+}
+
+void ajout_pizza(vector<Pizza>& pizzas) {
+	Pizza p;
+	char c;
+	cout << "Ajout au début (O/N) : ";
+	cin >> c; cin.ignore();
+	auto it = c == 'O' ? pizzas.begin() : pizzas.end();
+
+	p.saisie();
+
+	pizzas.insert(it, p);
+
+	cout << "Prix calculé de cette pizza = " << p.getPrix() << " euros" << endl;
+}
+
+void del_pizza(vector<Pizza>& pizzas) {
+	string ing;
+	cout << "Ingr_allergie : ";
+	getline(cin, ing);
+	
+	auto it = pizzas.begin();
+	while (it != pizzas.end()) {
+		if (it->contient_allergene(ing)) {
+			it = pizzas.erase(it);
+		}
+		it++;
+	}
+
+	cout << "Il reste : ";
+	for (int i = 0; i < pizzas.size()-1; i++) {
+		cout << pizzas[i].getNom() << ", ";
+	}
+		
+	if (pizzas.size() > 0) {
+		cout << pizzas[pizzas.size() - 1].getNom();
+	}
+
+	cout << endl;
+}
+
+int menu() {
+	int c;
+
+	cout << "1. Lire Pizza(s)" << endl
+		<< "2. Lire Client(s)" << endl
+		<< "3. Créer multimap<client, pizza>" << endl
+		<< "4. Ajouter (début ou fin) pizza + prix (2euros/ing.)" << endl
+		<< "5. Supprimer toutes les pizzas" << endl;
+
+	cout << "Choix : ";
+
+	cin >> c; cin.ignore();
+	return c;
+}
+
+int main() {
+	vector<Pizza> pizzas;
+	list<Client> clients;
+
+	multimap<Client, Pizza> mp;
+	
+
+	setlocale(LC_ALL, "");
+
+	while (true) {
+		switch (menu()) {
+		case 1:
+			lecture<vector<Pizza>, Pizza>(pizzas, "PIZZA_4.txt");
+			affichage(pizzas);
+			
+			break;
+		case 2:
+			lecture<list<Client>, Client>(clients, "CLIENT.txt");
+			affichage(clients);
+
+			break;
+		case 3:
+			pizza_alergenes(mp, pizzas, clients);
+			affiche_map(mp, clients);
+
+			break;
+		case 4:
+			ajout_pizza(pizzas);
+			affichage(pizzas);
+
+			break;
+		case 5:
+			del_pizza(pizzas);
+			affichage(pizzas);
+
+			break;
+		default:
+			return 0;
+		}
+	}
+}