PizzaMenu.java

package domain;

import java.math.BigDecimal;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;

public class PizzaMenu {
    private String name;
    private Map<String, Pizza> menu = new HashMap<String, Pizza>();

    public PizzaMenu(){
        name = "";
        menu = null;
    }

    public PizzaMenu(String name){
        setName(name);
        addStandardPizzas();
    }

    private void addStandardPizzas() {
        menu.put("margherita",new Pizza("margherita", 9.00,Arrays.asList("tomaten","kaas","kruiden"),true));
        menu.put("siciliana",new Pizza("siciliana", 8.00,Arrays.asList("tomaten","kaas","salami","uien","olijven"),false));
        menu.put("bolognese",new Pizza("bolognese", 6.00,Arrays.asList("bolognese saus"),false));
        menu.put("elena",new Pizza("elena", 8.00,Arrays.asList("rode kool","tomaten","mozzarella","gorgonzola","look","parmaham"),false));
        menu.put("romana",new Pizza("romana", 9.00,Arrays.asList("tomaten","kaas","parmaham","ansjovis"),false));
        menu.put("calzone",new Pizza("calzone", 10.00,Arrays.asList("tomaten","kaas","ham","champignons"),false));
        menu.put("capricciosa",new Pizza("capricciosa", 9.50,Arrays.asList("tomaten","kaas","parmaham","champignons","ei"),false));
    }

    public boolean addPizza(Pizza pizza){
        menu.put(pizza.getName(), pizza);
        return true;
    }


    public void removePizza(String name) throws UnknownPizzaException {
        Pizza removed = menu.remove(name);
        if (removed == null) throw new UnknownPizzaException(name);
    }

    public String getName() {
        return name;

    }

    public Pizza getPizza(String pizzaName){
        Pizza p = null;
        for(String pizza: menu.keySet()){
            if(menu.get(pizza).getName().equals(pizzaName)) {
                p = menu.get(pizza);
            }
        }
        return p;
    }

    public Map<String, Pizza> getPizzas(){
        return menu;
    }

    public Set<Pizza> getPizzas(Double maxPrice, boolean veggieOnly, Ingredient[] containing) {
        return menu.values().stream()
                .filter(p -> maxPrice==null || maxPrice > p.getPrice())
                .filter(p -> !veggieOnly || p.isVegetarian())
                .filter(p -> containing==null || p.isContaining(containing))
                .collect(Collectors.toSet());
    }

    public boolean isOnMenu(Pizza p){
        boolean isOnMenu = false;
        for(String pizza: menu.keySet()){
            if(menu.get(pizza).getName().equals(p.getName())) {
                isOnMenu = true;
            }
        }
        return isOnMenu;
    }

    private void setName(String name) {
        if(name == null || name.equals("")) throw new IllegalArgumentException("Menu name must be at least one character long");
        this.name = name;
    }

    public Map<String, Pizza> getPizzasCheaperThan(double price){
        Map<String, Pizza> cheaperPizzas = new HashMap<String, Pizza>();
        for(String pizza: menu.keySet()){
            if(menu.get(pizza).getPrice() <= price) {
                cheaperPizzas.put(pizza,menu.get(pizza));
            }
        }
        return cheaperPizzas;
    }

    public Map<String, Pizza> getPizzasVeggie(boolean isVeggie){
        Map<String, Pizza> VeggiePizzas = new HashMap<String, Pizza>();
        for(String pizza: menu.keySet()){
            if(menu.get(pizza).isVegetarian() == isVeggie) {
                VeggiePizzas.put(pizza,menu.get(pizza));
            }
        }
        return VeggiePizzas;
    }

    @Override
    public String toString(){
        String descr = "Menu: " + name + "\n";
        descr += "----------------------------------------------\n";
        for(String pizza: menu.keySet()){
                descr += menu.get(pizza).toString() + "\n";
        }
        return descr;
    }


}