package chapter1;

import java.util.*;

@FunctionalInterface

interface PetMatcher

{

List<Pet> match(Pet pet);

default Pet first(Pet pet)

{

int index = Pet.pets.indexOf(pet);

return index > -1? Pet.pets.get(index) : null;

}

}

public class PlayfulPets

{

private static void matchPet(String criteria,

PetMatcher matcher, Pet pet)

{

System.out.println("\n" + criteria + ":");

System.out.println("First: " + matcher.first(pet));

System.out.println("All matches:");

List<Pet> matches = matcher.match(pet);

for (Pet p : matches)

System.out.println(p);

}

public static void main(String[] args)

{

Pet.pets.add(new Pet("Scruffy","dog","poodle",

"white",895.00));

Pet.pets.add(new Pet("Meow","cat","siamese","white",740.25));

Pet.pets.add(new Pet("Max","dog","poodle","black",540.50));

Pet.pets.add(new Pet("Cuddles","dog","pug","black",1282.75));

Pet.pets.add(new Pet("Slider","snake","garden",

"green",320.00));

PetMatcher breedMatcher = new PetMatcher() {

public List<Pet> match(Pet pet)

{

List<Pet> matches = new ArrayList<>();

for (Pet p : Pet.pets)

if (p.equals(pet))

matches.add(p);

return matches;

}

};

PetMatcher priceMatcher = new PetMatcher() {

public List<Pet> match(Pet pet)

{

List<Pet> matches = new ArrayList<>();

for (Pet p : Pet.pets)

if (p.price <= pet.price)

matches.add(p);

return matches;

}

public Pet first(Pet pet)

{

int index = -1;

for(Pet p : Pet.pets)

if (p.price <= pet.price)

return p;

return null;

}

};

matchPet("Poodles",breedMatcher,

new Pet(null, "dog", "poodle", null, 0.0));

matchPet("Pets for $800 or less",priceMatcher,

new Pet(null, null, null, null, 800.0));

}

}