commit 99f25729bd3d0bed178d377772796d2e58a9127a
Author: Piotr Biernat <keedosn@gmail.com>
Date:   Tue Jul 1 18:34:47 2025 +0200

    Migrate all code

diff --git a/cli.php b/cli.php
new file mode 100644
index 0000000..77d14d1
--- /dev/null
+++ b/cli.php
@@ -0,0 +1,53 @@
+<?php
+
+require_once __DIR__ . '/vendor/autoload.php';
+
+use Keedosn\UnityGroupTest\Zoo\Animal\Animal;
+use Keedosn\UnityGroupTest\Zoo\Meal\Corn;
+use Keedosn\UnityGroupTest\Zoo\Meal\Leaf;
+use Keedosn\UnityGroupTest\Zoo\Meal\Steak;
+use Keedosn\UnityGroupTest\Zoo\Species\Elephant;
+use Keedosn\UnityGroupTest\Zoo\Species\Fox;
+use Keedosn\UnityGroupTest\Zoo\Species\SnowLeopard;
+use Keedosn\UnityGroupTest\Zoo\Zoo;
+
+$mealCorn = new Corn();
+$mealLeaf = new Leaf();
+$mealSteak = new Steak();
+
+$zoo = new Zoo();
+
+$fox = new Animal('Lisek', new Fox());
+$zoo->add($fox);
+
+echo $fox . PHP_EOL;
+printf('Karmie %s jedzeniem: %s - %s' . PHP_EOL, $fox->getName(), $mealCorn->getName(), $fox->fed($mealCorn) ? 'Zjedzone' : 'Odrzucone');
+printf('Karmie %s jedzeniem: %s - %s' . PHP_EOL, $fox->getName(), $mealLeaf->getName(), $fox->fed($mealLeaf) ? 'Zjedzone' : 'Odrzucone');
+printf('Karmie %s jedzeniem: %s - %s' . PHP_EOL, $fox->getName(), $mealSteak->getName(), $fox->fed($mealSteak) ? 'Zjedzone' : 'Odrzucone');
+printf('Czy zwierze ma futro? %s' . PHP_EOL, ($fox->hasFur() ? 'Tak' : 'Nie'));
+$fox->clearFur();
+echo PHP_EOL;
+
+$elephant = new Animal('Słonik', new Elephant());
+$zoo->add($elephant);
+
+echo $elephant . PHP_EOL;
+printf('Karmie %s jedzeniem: %s - %s' . PHP_EOL, $elephant->getName(), $mealCorn->getName(), $elephant->fed($mealCorn) ? 'Zjedzone' : 'Odrzucone');
+printf('Karmie %s jedzeniem: %s - %s' . PHP_EOL, $elephant->getName(), $mealLeaf->getName(), $elephant->fed($mealLeaf) ? 'Zjedzone' : 'Odrzucone');
+printf('Karmie %s jedzeniem: %s - %s' . PHP_EOL, $elephant->getName(), $mealSteak->getName(), $elephant->fed($mealSteak) ? 'Zjedzone' : 'Odrzucone');
+printf('Czy zwierze ma futro? %s' . PHP_EOL, ($elephant->hasFur() ? 'Tak' : 'Nie'));
+$elephant->clearFur();
+echo PHP_EOL;
+
+$sl = new Animal('Leopard', new SnowLeopard());
+$zoo->add($sl);
+
+echo $sl . PHP_EOL;
+printf('Karmie %s jedzeniem: %s - %s' . PHP_EOL, $sl->getName(), $mealCorn->getName(), $sl->fed($mealCorn) ? 'Zjedzone' : 'Odrzucone');
+printf('Karmie %s jedzeniem: %s - %s' . PHP_EOL, $sl->getName(), $mealLeaf->getName(), $sl->fed($mealLeaf) ? 'Zjedzone' : 'Odrzucone');
+printf('Karmie %s jedzeniem: %s - %s' . PHP_EOL, $sl->getName(), $mealSteak->getName(), $sl->fed($mealSteak) ? 'Zjedzone' : 'Odrzucone');
+printf('Czy zwierze ma futro? %s' . PHP_EOL, ($sl->hasFur() ? 'Tak' : 'Nie'));
+$sl->clearFur();
+echo PHP_EOL;
+
+echo sprintf('W Zoo przebywa obecnie: %d zwierząt' . PHP_EOL, $zoo->count());
diff --git a/composer.json b/composer.json
new file mode 100644
index 0000000..744a2bf
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,17 @@
+{
+    "name": "keedosn/unity-group-test",
+    "description": "PHP Test Task",
+    "type": "project",
+    "autoload": {
+        "psr-4": {
+            "Keedosn\\UnityGroupTest\\": "src/"
+        }
+    },
+    "authors": [
+        {
+            "name": "Piotr Biernat",
+            "email": "keedosn@gmail.com"
+        }
+    ],
+    "require": {}
+}
diff --git a/db-dump.sql b/db-dump.sql
new file mode 100644
index 0000000..0092885
--- /dev/null
+++ b/db-dump.sql
@@ -0,0 +1,165 @@
+--
+-- PostgreSQL database dump
+--
+
+-- Dumped from database version 16.2 (Debian 16.2-1.pgdg120+2)
+-- Dumped by pg_dump version 16.2 (Debian 16.2-1.pgdg120+2)
+
+SET statement_timeout = 0;
+SET lock_timeout = 0;
+SET idle_in_transaction_session_timeout = 0;
+SET client_encoding = 'UTF8';
+SET standard_conforming_strings = on;
+SELECT pg_catalog.set_config('search_path', '', false);
+SET check_function_bodies = false;
+SET xmloption = content;
+SET client_min_messages = warning;
+SET row_security = off;
+
+SET default_tablespace = '';
+
+SET default_table_access_method = heap;
+
+--
+-- Name: authors; Type: TABLE; Schema: public; Owner: postgres
+--
+
+CREATE TABLE public.authors (
+    id uuid DEFAULT gen_random_uuid() NOT NULL,
+    first_name character varying NOT NULL,
+    last_name character varying NOT NULL
+);
+
+
+ALTER TABLE public.authors OWNER TO postgres;
+
+--
+-- Name: average_grades; Type: VIEW; Schema: public; Owner: postgres
+--
+
+CREATE VIEW public.average_grades AS
+SELECT
+    NULL::character varying(255) AS title,
+    NULL::bigint AS reviews_count,
+    NULL::numeric AS avg_grade;
+
+
+ALTER VIEW public.average_grades OWNER TO postgres;
+
+--
+-- Name: VIEW average_grades; Type: COMMENT; Schema: public; Owner: postgres
+--
+
+COMMENT ON VIEW public.average_grades IS 'widok zawierający 5-ciu autorów, których średnia
+ocen wszystkich książek jest najwyższa.';
+
+
+--
+-- Name: books; Type: TABLE; Schema: public; Owner: postgres
+--
+
+CREATE TABLE public.books (
+    id uuid DEFAULT gen_random_uuid() NOT NULL,
+    author_id uuid NOT NULL,
+    title character varying(255) NOT NULL,
+    published_year integer NOT NULL,
+    isbn character varying(20) NOT NULL
+);
+
+
+ALTER TABLE public.books OWNER TO postgres;
+
+--
+-- Name: reviews; Type: TABLE; Schema: public; Owner: postgres
+--
+
+CREATE TABLE public.reviews (
+    id uuid DEFAULT gen_random_uuid() NOT NULL,
+    book_id uuid NOT NULL,
+    grade smallint NOT NULL,
+    review text NOT NULL
+);
+
+
+ALTER TABLE public.reviews OWNER TO postgres;
+
+--
+-- Data for Name: authors; Type: TABLE DATA; Schema: public; Owner: postgres
+--
+
+INSERT INTO public.authors (id, first_name, last_name) VALUES ('a842544f-2f2d-4fdb-82c0-90c84902c996', 'Best', 'Seller');
+INSERT INTO public.authors (id, first_name, last_name) VALUES ('ea4b242d-4fb9-4b7e-9301-3f5489759eb8', 'Yoko', 'Ono');
+
+
+--
+-- Data for Name: books; Type: TABLE DATA; Schema: public; Owner: postgres
+--
+
+INSERT INTO public.books (id, author_id, title, published_year, isbn) VALUES ('13564239-b83c-4896-88cb-f92b312438ab', 'a842544f-2f2d-4fdb-82c0-90c84902c996', 'Rozwiązanie tajemnicy Bażanta', 2003, '15487-634-756-123');
+INSERT INTO public.books (id, author_id, title, published_year, isbn) VALUES ('752f58d2-604a-466e-8957-ced8c256a0c6', 'a842544f-2f2d-4fdb-82c0-90c84902c996', 'Tajemnica zaginionego Bażanta', 2001, '12346-543-123-162');
+INSERT INTO public.books (id, author_id, title, published_year, isbn) VALUES ('b9fc879e-ba41-4d89-819d-7bb928eab557', 'ea4b242d-4fb9-4b7e-9301-3f5489759eb8', 'Autobiografia Yoko Ono', 1999, '12345-567-789-123');
+
+
+--
+-- Data for Name: reviews; Type: TABLE DATA; Schema: public; Owner: postgres
+--
+
+INSERT INTO public.reviews (id, book_id, grade, review) VALUES ('ef2355d8-3277-440b-8344-7fff3ea72a8a', '13564239-b83c-4896-88cb-f92b312438ab', 9, 'Mam nadzieje na kolejną część');
+INSERT INTO public.reviews (id, book_id, grade, review) VALUES ('bdd1ecaa-0fa7-4546-b9fd-e1138c5d52a6', '752f58d2-604a-466e-8957-ced8c256a0c6', 4, 'Dobra literatura');
+INSERT INTO public.reviews (id, book_id, grade, review) VALUES ('6db5ef53-751b-4034-b61c-8c31b6a1af80', '752f58d2-604a-466e-8957-ced8c256a0c6', 6, 'Niezła ksiązka');
+INSERT INTO public.reviews (id, book_id, grade, review) VALUES ('f28488b5-24db-4e64-8455-aa30ea1f1c10', '752f58d2-604a-466e-8957-ced8c256a0c6', 7, 'Spoko');
+INSERT INTO public.reviews (id, book_id, grade, review) VALUES ('cb0a3d30-fd8f-45a3-8c9f-f8763fa332eb', 'b9fc879e-ba41-4d89-819d-7bb928eab557', 6, 'Spoko ksiązka');
+INSERT INTO public.reviews (id, book_id, grade, review) VALUES ('bccfa802-c020-450e-9b76-376251c15de1', '13564239-b83c-4896-88cb-f92b312438ab', 7, 'OK');
+INSERT INTO public.reviews (id, book_id, grade, review) VALUES ('9a23d2d8-988a-49f9-888e-4e68233c456b', '13564239-b83c-4896-88cb-f92b312438ab', 8, 'Bardzo dobra. Lepsza niż poprzednia.');
+
+
+--
+-- Name: authors authors_pkey; Type: CONSTRAINT; Schema: public; Owner: postgres
+--
+
+ALTER TABLE ONLY public.authors
+    ADD CONSTRAINT authors_pkey PRIMARY KEY (id);
+
+
+--
+-- Name: books books_pkey; Type: CONSTRAINT; Schema: public; Owner: postgres
+--
+
+ALTER TABLE ONLY public.books
+    ADD CONSTRAINT books_pkey PRIMARY KEY (id);
+
+
+--
+-- Name: reviews reviews_pkey; Type: CONSTRAINT; Schema: public; Owner: postgres
+--
+
+ALTER TABLE ONLY public.reviews
+    ADD CONSTRAINT reviews_pkey PRIMARY KEY (id);
+
+
+--
+-- Name: average_grades _RETURN; Type: RULE; Schema: public; Owner: postgres
+--
+
+CREATE OR REPLACE VIEW public.average_grades AS
+ SELECT b.title,
+    count(DISTINCT r.id) AS reviews_count,
+    avg(r.grade) AS avg_grade
+   FROM (public.books b
+     JOIN public.reviews r ON ((r.book_id = b.id)))
+  GROUP BY b.id
+  ORDER BY (avg(r.grade)) DESC
+ LIMIT 5;
+
+
+--
+-- Name: reviews reviews_book_id_fkey; Type: FK CONSTRAINT; Schema: public; Owner: postgres
+--
+
+ALTER TABLE ONLY public.reviews
+    ADD CONSTRAINT reviews_book_id_fkey FOREIGN KEY (book_id) REFERENCES public.books(id);
+
+
+--
+-- PostgreSQL database dump complete
+--
diff --git a/queries.sql b/queries.sql
new file mode 100644
index 0000000..8b9f05c
--- /dev/null
+++ b/queries.sql
@@ -0,0 +1,14 @@
+-- Pobieranie autorów wraz z ilością książek:
+SELECT a.first_name, a.last_name, COUNT(DISTINCT b.id) AS writed_books 
+FROM public.authors a 
+JOIN public.books b ON b.author_id = a.id
+GROUP BY a.id
+
+-- Pobieranie książek wraz z ilością recenzji:
+SELECT b.title, COUNT(DISTINCT r.id) AS reviews_count, AVG(r.grade) AS avg_grade
+FROM public.books b
+JOIN public.reviews r ON r.book_id = b.id
+GROUP BY b.id
+
+-- Pobranie danych za pomoca widoku:
+SELECT * FROM public.average_grades
diff --git a/src/Zoo/Animal/Animal.php b/src/Zoo/Animal/Animal.php
new file mode 100644
index 0000000..9157f28
--- /dev/null
+++ b/src/Zoo/Animal/Animal.php
@@ -0,0 +1,56 @@
+<?php
+
+namespace Keedosn\UnityGroupTest\Zoo\Animal;
+
+use Keedosn\UnityGroupTest\Zoo\Meal\Meal;
+use Keedosn\UnityGroupTest\Zoo\Species\Species;
+use Keedosn\UnityGroupTest\Zoo\FoodType\FoodType;
+
+class Animal
+{
+    private $name = '';
+
+    private Species $species;
+
+    function __construct(string $name, Species $species)
+    {
+        $this->name = $name;
+        $this->species = $species;
+    }
+
+    public function __toString()
+    {
+        return sprintf('%s %s', $this->species->getName(), $this->name);
+    }
+
+    public function getName(): string
+    {
+        return $this->name;
+    }
+
+    public function fed(Meal $meal): bool
+    {
+        if ($this->species->getFoodType()->getType() === FoodType::TYPE_OMNIVOROUS) {
+            return true;
+        }
+
+        if ($this->species->getFoodType()->getType() === $meal->getType()->getType()) {
+            return true;
+        }
+
+        return false;
+    }
+
+    public function hasFur(): bool
+    {
+        return $this->species->hasFur();
+    }
+
+    public function clearFur(): void
+    {
+        if ($this->hasFur()) {
+            $this->species->clearFur();
+            echo 'Futro zostało wyczyszczone' . PHP_EOL;
+        }
+    }
+}
diff --git a/src/Zoo/FoodType/Carnivorous.php b/src/Zoo/FoodType/Carnivorous.php
new file mode 100644
index 0000000..b81d350
--- /dev/null
+++ b/src/Zoo/FoodType/Carnivorous.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Keedosn\UnityGroupTest\Zoo\FoodType;
+
+class Carnivorous extends FoodType
+{
+    protected string $name = 'Mięsożerny';
+
+    protected string $type = FoodType::TYPE_CARNIVOROUS;
+}
diff --git a/src/Zoo/FoodType/FoodType.php b/src/Zoo/FoodType/FoodType.php
new file mode 100644
index 0000000..f28576b
--- /dev/null
+++ b/src/Zoo/FoodType/FoodType.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace Keedosn\UnityGroupTest\Zoo\FoodType;
+
+abstract class FoodType
+{
+    public const TYPE_CARNIVOROUS = 'carnivorous';
+
+    public const TYPE_HERBIVOROUS = 'herbivorous';
+
+    public const TYPE_OMNIVOROUS = 'omnivorous';
+
+    protected string $name;
+
+    protected string $type;
+
+    public function getName(): string
+    {
+        return $this->name;
+    }
+
+    public function getType(): string
+    {
+        return $this->type;
+    }
+}
\ No newline at end of file
diff --git a/src/Zoo/FoodType/Herbivorous.php b/src/Zoo/FoodType/Herbivorous.php
new file mode 100644
index 0000000..2c1dac0
--- /dev/null
+++ b/src/Zoo/FoodType/Herbivorous.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Keedosn\UnityGroupTest\Zoo\FoodType;
+
+class Herbivorous extends FoodType
+{
+    protected string $name = 'Roślinożerny';
+
+    protected string $type = FoodType::TYPE_HERBIVOROUS;
+}
diff --git a/src/Zoo/FoodType/Omnivorous.php b/src/Zoo/FoodType/Omnivorous.php
new file mode 100644
index 0000000..8a6ac21
--- /dev/null
+++ b/src/Zoo/FoodType/Omnivorous.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Keedosn\UnityGroupTest\Zoo\FoodType;
+
+class Omnivorous extends FoodType
+{
+    protected string $name = 'Wszystkożerny';
+
+    protected string $type = FoodType::TYPE_OMNIVOROUS;
+}
diff --git a/src/Zoo/Meal/Corn.php b/src/Zoo/Meal/Corn.php
new file mode 100644
index 0000000..98eab25
--- /dev/null
+++ b/src/Zoo/Meal/Corn.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace Keedosn\UnityGroupTest\Zoo\Meal;
+
+use Keedosn\UnityGroupTest\Zoo\FoodType\FoodType;
+use Keedosn\UnityGroupTest\Zoo\FoodType\Herbivorous;
+
+class Corn extends Meal
+{
+    public function getName(): string
+    {
+        return 'Kukurydzna';
+    }
+    
+    public function getType(): FoodType
+    {
+        return new Herbivorous();
+    }
+}
diff --git a/src/Zoo/Meal/Leaf.php b/src/Zoo/Meal/Leaf.php
new file mode 100644
index 0000000..e7be176
--- /dev/null
+++ b/src/Zoo/Meal/Leaf.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace Keedosn\UnityGroupTest\Zoo\Meal;
+
+use Keedosn\UnityGroupTest\Zoo\FoodType\FoodType;
+use Keedosn\UnityGroupTest\Zoo\FoodType\Herbivorous;
+
+class Leaf extends Meal
+{
+    public function getName(): string
+    {
+        return 'Liście';
+    }
+    
+    public function getType(): FoodType
+    {
+        return new Herbivorous();
+    }
+}
diff --git a/src/Zoo/Meal/Meal.php b/src/Zoo/Meal/Meal.php
new file mode 100644
index 0000000..4f749c2
--- /dev/null
+++ b/src/Zoo/Meal/Meal.php
@@ -0,0 +1,12 @@
+<?php
+
+namespace Keedosn\UnityGroupTest\Zoo\Meal;
+
+use Keedosn\UnityGroupTest\Zoo\FoodType\FoodType;
+
+abstract class Meal
+{
+    abstract public function getType(): FoodType;
+
+    abstract public function getName(): string;
+}
diff --git a/src/Zoo/Meal/Steak.php b/src/Zoo/Meal/Steak.php
new file mode 100644
index 0000000..99f4b7d
--- /dev/null
+++ b/src/Zoo/Meal/Steak.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace Keedosn\UnityGroupTest\Zoo\Meal;
+
+use Keedosn\UnityGroupTest\Zoo\FoodType\Carnivorous;
+use Keedosn\UnityGroupTest\Zoo\FoodType\FoodType;
+
+class Steak extends Meal
+{
+    public function getName(): string
+    {
+        return 'Stek wołowy';
+    }
+    
+
+    public function getType(): FoodType
+    {
+        return new Carnivorous();
+    }
+}
diff --git a/src/Zoo/Species/Elephant.php b/src/Zoo/Species/Elephant.php
new file mode 100644
index 0000000..e6609d6
--- /dev/null
+++ b/src/Zoo/Species/Elephant.php
@@ -0,0 +1,31 @@
+<?php
+
+namespace Keedosn\UnityGroupTest\Zoo\Species;
+
+use Keedosn\UnityGroupTest\Zoo\FoodType\FoodType;
+use Keedosn\UnityGroupTest\Zoo\FoodType\Herbivorous;
+
+class Elephant extends Species
+{
+    protected string $name = 'Słoń';
+
+    public function getFoodType(): FoodType
+    {
+        return new Herbivorous();
+    }
+
+    public function hasFur(): bool
+    {
+        return false;
+    }
+
+    public function clearFur(): bool
+    {
+        return false;
+    }
+    
+    public function getSound(): string
+    {
+        return 'Trumpet';
+    }
+}
\ No newline at end of file
diff --git a/src/Zoo/Species/Fox.php b/src/Zoo/Species/Fox.php
new file mode 100644
index 0000000..866c982
--- /dev/null
+++ b/src/Zoo/Species/Fox.php
@@ -0,0 +1,33 @@
+<?php
+
+namespace Keedosn\UnityGroupTest\Zoo\Species;
+
+use Keedosn\UnityGroupTest\Zoo\FoodType\FoodType;
+use Keedosn\UnityGroupTest\Zoo\FoodType\Omnivorous;
+
+class Fox extends Species
+{
+    protected string $name = 'Lis';
+
+    public function getFoodType(): FoodType
+    {
+        return new Omnivorous();
+    }
+
+    public function hasFur(): bool
+    {
+        return true;
+    }
+
+    public function clearFur(): bool
+    {
+        echo 'Indywidualny sposób mycia lisa...';
+        
+        return true;
+    }
+
+    public function getSound(): string
+    {
+        return 'Yip';
+    }
+}
diff --git a/src/Zoo/Species/Rabbit.php b/src/Zoo/Species/Rabbit.php
new file mode 100644
index 0000000..a662fef
--- /dev/null
+++ b/src/Zoo/Species/Rabbit.php
@@ -0,0 +1,33 @@
+<?php
+
+namespace Keedosn\UnityGroupTest\Zoo\Species;
+
+use Keedosn\UnityGroupTest\Zoo\FoodType\FoodType;
+use Keedosn\UnityGroupTest\Zoo\FoodType\Herbivorous;
+
+class Rabbit extends Species
+{
+    protected string $name = 'Królik';
+
+    public function getFoodType(): FoodType
+    {
+        return new Herbivorous();
+    }
+
+    public function hasFur(): bool
+    {
+        return true;
+    }
+
+    public function clearFur(): bool
+    {
+        echo 'Indywidualny sposób mycia królika...';
+        
+        return true;
+    }
+    
+    public function getSound(): string
+    {
+        return 'Squeak';
+    }
+}
diff --git a/src/Zoo/Species/Rhino.php b/src/Zoo/Species/Rhino.php
new file mode 100644
index 0000000..7cfa2cb
--- /dev/null
+++ b/src/Zoo/Species/Rhino.php
@@ -0,0 +1,31 @@
+<?php
+
+namespace Keedosn\UnityGroupTest\Zoo\Species;
+
+use Keedosn\UnityGroupTest\Zoo\FoodType\FoodType;
+use Keedosn\UnityGroupTest\Zoo\FoodType\Herbivorous;
+
+class Rhino extends Species
+{
+    protected string $name = 'Nosorożec';
+
+    public function getFoodType(): FoodType
+    {
+        return new Herbivorous();
+    }
+
+    public function hasFur(): bool
+    {
+        return false;
+    }
+
+    public function clearFur(): bool
+    {
+        return true;
+    }
+    
+    public function getSound(): string
+    {
+        return 'Snort';
+    }
+}
diff --git a/src/Zoo/Species/SnowLeopard.php b/src/Zoo/Species/SnowLeopard.php
new file mode 100644
index 0000000..1c67ad7
--- /dev/null
+++ b/src/Zoo/Species/SnowLeopard.php
@@ -0,0 +1,33 @@
+<?php
+
+namespace Keedosn\UnityGroupTest\Zoo\Species;
+
+use Keedosn\UnityGroupTest\Zoo\FoodType\Carnivorous;
+use Keedosn\UnityGroupTest\Zoo\FoodType\FoodType;
+
+class SnowLeopard extends Species
+{
+    protected string $name = 'Ibris śnieżny';
+
+    public function getFoodType(): FoodType
+    {
+        return new Carnivorous();
+    }
+
+    public function hasFur(): bool
+    {
+        return true;
+    }
+
+    public function clearFur(): bool
+    {
+        echo 'Indywidualny sposób mycia ibrysa syberyjskiego...';
+
+        return true;
+    }
+    
+    public function getSound(): string
+    {
+        return 'Growl';
+    }
+}
diff --git a/src/Zoo/Species/Species.php b/src/Zoo/Species/Species.php
new file mode 100644
index 0000000..bc69376
--- /dev/null
+++ b/src/Zoo/Species/Species.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace Keedosn\UnityGroupTest\Zoo\Species;
+
+use Keedosn\UnityGroupTest\Zoo\FoodType\FoodType;
+
+abstract class Species
+{
+    protected string $name = '';
+
+    private FoodType $foodType;
+
+    public function getName(): string
+    {
+        return $this->name;
+    }
+
+    public abstract function hasFur(): bool;
+
+    public abstract function clearFur(): bool;
+
+    public abstract function getSound(): string;
+
+    public abstract function getFoodType(): FoodType;
+}
diff --git a/src/Zoo/Species/Tiger.php b/src/Zoo/Species/Tiger.php
new file mode 100644
index 0000000..16d301b
--- /dev/null
+++ b/src/Zoo/Species/Tiger.php
@@ -0,0 +1,31 @@
+<?php
+
+namespace Keedosn\UnityGroupTest\Zoo\Species;
+
+use Keedosn\UnityGroupTest\Zoo\FoodType\Carnivorous;
+use Keedosn\UnityGroupTest\Zoo\FoodType\FoodType;
+
+class Tiger extends Species
+{
+    protected string $name = 'Tygrys';
+
+    public function getFoodType(): FoodType
+    {
+        return new Carnivorous();
+    }
+
+    public function hasFur(): bool
+    {
+        return true;
+    }
+
+    public function clearFur(): bool
+    {
+        return true;
+    }
+    
+    public function getSound(): string
+    {
+        return 'Roar';
+    }
+}
diff --git a/src/Zoo/Zoo.php b/src/Zoo/Zoo.php
new file mode 100644
index 0000000..7c76970
--- /dev/null
+++ b/src/Zoo/Zoo.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace Keedosn\UnityGroupTest\Zoo;
+
+use Keedosn\UnityGroupTest\Zoo\Animal\Animal;
+
+class Zoo
+{
+    private array $animals = [];
+
+    public function add(Animal $animal)
+    {
+        $this->animals[] = $animal;
+    }
+
+    public function count(): int
+    {
+        return count($this->animals);
+    }
+}