diff --git a/code/app.php b/code/app.php
new file mode 100644
index 00000000..d6b114dc
--- /dev/null
+++ b/code/app.php
@@ -0,0 +1,11 @@
+<?php
+
+require_once('vendor/autoload.php');
+
+try {
+    $app = new App\Application();
+    $app->run();
+}
+catch(Exception $e) {
+    App\Response::generateBadRequestResponse($e->getMessage());
+}
diff --git a/code/app_src/Adapter/KitchenAdapter.php b/code/app_src/Adapter/KitchenAdapter.php
new file mode 100644
index 00000000..e82d7a86
--- /dev/null
+++ b/code/app_src/Adapter/KitchenAdapter.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace App\Adapter;
+
+use App\Meal\MealInterface;
+
+class KitchenAdapter
+{
+	private KitchenService $kitchenService;
+
+	
+	public function __construct(KitchenService $kitchenService)
+	{
+		$this->kitchenService = $kitchenService;
+	}
+	
+	public function cookMeal(MealInterface $meal): void
+	{
+		$currentIngredients = $meal->getIngredients();
+		$meal->resetIngredients();
+		$meal->addIngredients($this->kitchenService->fry($currentIngredients));
+		
+		if ($this->kitchenService->checkMealQuality($meal)) {
+			$meal->setStatus('COOKED_AND_CHECKED');
+		} else {
+			throw new \Exception('Cooking failed');
+		}
+	}
+	
+	public function utilizeMeal(MealInterface $meal): void
+	{
+		$this->kitchenService->utilize($meal);
+	}
+}
\ No newline at end of file
diff --git a/code/app_src/Adapter/KitchenService.php b/code/app_src/Adapter/KitchenService.php
new file mode 100644
index 00000000..00d09719
--- /dev/null
+++ b/code/app_src/Adapter/KitchenService.php
@@ -0,0 +1,45 @@
+<?php
+
+namespace App\Adapter;
+
+use App\Meal\MealInterface;
+
+class KitchenService
+{
+	private static array $needToBeFried = [
+		'sausage',
+		'cotlete',
+		'onion',
+		'beef',
+	];
+	
+	public function fry(array $ingredients): array
+	{
+		$cookedIngredients = [];
+		foreach ($ingredients as $ingredient => $value) {
+			if (in_array($ingredient, self::$needToBeFried)) {
+				$cookedIngredients["fried_$ingredient"] = $value;
+			} else {
+				$cookedIngredients[$ingredient] = $value;
+			}
+		}
+
+		return $cookedIngredients;
+	}
+	
+	public function checkMealQuality(MealInterface $meal): bool
+	{
+		foreach ($meal->getIngredients() as $ingredient => $value) {
+			if (in_array($ingredient, self::$needToBeFried)) {
+				return false;
+			} 
+		}
+		
+		return true;
+	}
+	
+	public function utilize(MealInterface $meal): void
+	{
+		$meal->setStatus('UTILIZED');
+	}
+}
\ No newline at end of file
diff --git a/code/app_src/Application.php b/code/app_src/Application.php
new file mode 100644
index 00000000..7eabd7d5
--- /dev/null
+++ b/code/app_src/Application.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace App;
+
+class Application
+{
+    private $request;
+
+    public function __construct()
+    {
+		try {
+			$this->request = RequestValidator::validate($_POST);
+		} catch (\Exception $e) {
+			throw new \Exception($e->getMessage());
+		}
+    }
+
+    public function run(): void
+	{
+		$customer = new Observer\Customer();
+		$order = new Strategy\OrderContext($customer);
+
+		switch ($_POST['meal']) {
+			case 'Burger':
+				$order->setCookingStrategy(new Strategy\BurgerStrategy());
+				break;
+			
+			case 'Hotdog':
+				$order->setCookingStrategy(new Strategy\HotdogStrategy());
+				break;
+			
+			case 'Sandwich':
+				$order->setCookingStrategy(new Strategy\SandwichStrategy());
+				break;
+			
+			default:
+				throw new Exception('No meal choosed');
+		}
+
+		$meal = $order->getOrderedMeal(isset($_POST['client_ingredients']) ? $_POST['client_ingredients'] : []);
+		print_r($meal->getIngredients());
+    }
+}
diff --git a/code/app_src/Decorator/BurgerDecorator.php b/code/app_src/Decorator/BurgerDecorator.php
new file mode 100644
index 00000000..eaf8ce15
--- /dev/null
+++ b/code/app_src/Decorator/BurgerDecorator.php
@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Decorator;
+
+use App\Meal\MealInterface;
+
+class BurgerDecorator extends MealDecorator
+{
+	private MealDecorator $mealDecorator;
+	
+	private static array $baseRecipe = [
+		'pickles' => 3,
+		'onion' => 2,
+		'lettuce' => 1,
+		'cotlete' => 1,
+	];
+	
+	public function __construct(MealDecorator $mealDecorator)
+	{
+		$this->mealDecorator = $mealDecorator;
+	}
+	
+	function addBaseIngredients(): void
+	{
+		$this->mealDecorator->ingredients = array_merge(
+			$this->mealDecorator->ingredients, 
+			$this->mealDecorator->getAdapter()->createIngredientsArray(self::$baseRecipe)
+		);
+		$this->mealDecorator->setStatus('ADDED_BASE_BURGER_RECIPE_INGREDIENTS');
+	}
+}
\ No newline at end of file
diff --git a/code/app_src/Decorator/CustomerIngredientsDecorator.php b/code/app_src/Decorator/CustomerIngredientsDecorator.php
new file mode 100644
index 00000000..c1192ac6
--- /dev/null
+++ b/code/app_src/Decorator/CustomerIngredientsDecorator.php
@@ -0,0 +1,24 @@
+<?php
+
+namespace App\Decorator;
+
+use App\Meal\MealInterface;
+
+class CustomerIngredientsDecorator extends MealDecorator
+{
+	private MealDecorator $mealDecorator;
+
+	public function __construct(MealDecorator $mealDecorator)
+	{
+		$this->mealDecorator = $mealDecorator;
+	}
+
+	public function addCustomerIngredients(array $customerIngredients): void
+	{
+		$this->mealDecorator->ingredients = array_merge(
+			$this->mealDecorator->ingredients, 
+			$this->mealDecorator->getAdapter()->createIngredientsArray($customerIngredients)
+		);
+		$this->mealDecorator->setStatus('ADDED_CLIENT_INGREDIENTS');
+	}
+}
\ No newline at end of file
diff --git a/code/app_src/Decorator/HotdogDecorator.php b/code/app_src/Decorator/HotdogDecorator.php
new file mode 100644
index 00000000..b6c75216
--- /dev/null
+++ b/code/app_src/Decorator/HotdogDecorator.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace App\Decorator;
+
+use App\Meal\MealInterface;
+
+class HotdogDecorator extends MealDecorator
+{
+	private MealDecorator $mealDecorator;
+
+	private static array $baseRecipe = [
+		'ketchup' => 1,
+		'mustard' => 1,
+		'sausage' => 1,
+	];
+
+	public function __construct(MealDecorator $mealDecorator)
+	{
+		$this->mealDecorator = $mealDecorator;
+	}
+
+	function addBaseIngredients(): void
+	{
+		$this->mealDecorator->ingredients = array_merge(
+			$this->mealDecorator->ingredients,
+			$this->mealDecorator->getAdapter()->createIngredientsArray(self::$baseRecipe)
+		);
+		$this->mealDecorator->setStatus('ADDED_BASE_HOTDOG_RECIPE_INGREDIENTS');
+	}
+}
\ No newline at end of file
diff --git a/code/app_src/Decorator/MealDecorator.php b/code/app_src/Decorator/MealDecorator.php
new file mode 100644
index 00000000..b474893c
--- /dev/null
+++ b/code/app_src/Decorator/MealDecorator.php
@@ -0,0 +1,52 @@
+<?php
+
+namespace App\Decorator;
+
+use App\Meal\MealBaseClass;
+use App\Meal\IngredientAdapter;
+
+class MealDecorator extends MealBaseClass
+{
+	
+	private MealBaseClass $meal;
+	private SplObjectStorage $observers;
+	private IngredientAdapter $adapter;
+	
+	public function __construct(MealBaseClass $baseMeal)
+	{
+		$this->meal = $baseMeal;
+		$this->adapter = new IngredientAdapter();
+		$this->resetIngredients();
+	}
+
+	public function resetIngredients(): void
+	{
+		$this->ingredients = $this->meal->getIngredients();
+	}
+	
+	public function setStatus(string $status): void
+	{
+		$this->meal->setStatus($status);
+	}
+	
+	public function getBaseMealType(): string
+	{
+		return get_class($this->meal);
+	}
+	
+	public function getIngredients(): array
+	{
+		return $this->ingredients;
+	}
+	
+	public function addIngredients(array $ingredients = []): void
+	{
+		$this->ingredients = array_merge($this->ingredients, $ingredients);
+	}
+	
+	public function getAdapter(): IngredientAdapter
+	{
+		return $this->adapter;
+	}
+
+}
\ No newline at end of file
diff --git a/code/app_src/Decorator/SandwichDecorator.php b/code/app_src/Decorator/SandwichDecorator.php
new file mode 100644
index 00000000..1f8f516a
--- /dev/null
+++ b/code/app_src/Decorator/SandwichDecorator.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Decorator;
+
+use App\Meal\MealInterface;
+
+class SandwichDecorator extends MealDecorator
+{
+	private MealDecorator $mealDecorator;
+
+	private static array $baseRecipe = [
+		'ham' => 1,
+		'cheese' => 2,
+	];
+
+	public function __construct(MealDecorator $mealDecorator)
+	{
+		$this->mealDecorator = $mealDecorator;
+	}
+
+	function addBaseIngredients(): void
+	{
+		$this->mealDecorator->ingredients = array_merge(
+			$this->mealDecorator->ingredients,
+			$this->mealDecorator->getAdapter()->createIngredientsArray(self::$baseRecipe)
+		);
+		$this->mealDecorator->setStatus('ADDED_BASE_SANDWICH_RECIPE_INGREDIENTS');
+	}
+}
\ No newline at end of file
diff --git a/code/app_src/Factory/BurgerFactory.php b/code/app_src/Factory/BurgerFactory.php
new file mode 100644
index 00000000..bdb8a79c
--- /dev/null
+++ b/code/app_src/Factory/BurgerFactory.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace App\Factory;
+
+use App\Meal\Burger;
+use App\Meal\MealInterface;
+
+class BurgerFactory extends MealFactory
+{
+	public function createMealBase(): MealInterface
+	{
+		return new Burger();
+	}
+}
diff --git a/code/app_src/Factory/HotdogFactory.php b/code/app_src/Factory/HotdogFactory.php
new file mode 100644
index 00000000..54f63224
--- /dev/null
+++ b/code/app_src/Factory/HotdogFactory.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace App\Factory;
+
+use App\Meal\Hotdog;
+use App\Meal\MealInterface;
+
+class HotdogFactory extends MealFactory
+{
+	public function createMealBase(): MealInterface
+	{
+		return new Hotdog();
+	}
+}
diff --git a/code/app_src/Factory/MealFactory.php b/code/app_src/Factory/MealFactory.php
new file mode 100644
index 00000000..f7795187
--- /dev/null
+++ b/code/app_src/Factory/MealFactory.php
@@ -0,0 +1,12 @@
+<?php
+
+namespace App\Factory;
+
+use App\Meal\MealInterface;
+
+abstract class MealFactory
+{	
+
+	abstract public function createMealBase(): MealInterface;
+	
+}
\ No newline at end of file
diff --git a/code/app_src/Factory/SandwichFactory.php b/code/app_src/Factory/SandwichFactory.php
new file mode 100644
index 00000000..024a203a
--- /dev/null
+++ b/code/app_src/Factory/SandwichFactory.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace App\Factory;
+
+use App\Meal\Sandwich;
+use App\Meal\MealInterface;
+
+class SandwichFactory extends MealFactory
+{
+	public function createMealBase(): MealInterface
+	{
+		return new Sandwich();
+	}
+}
diff --git a/code/app_src/Meal/Burger.php b/code/app_src/Meal/Burger.php
new file mode 100644
index 00000000..79d53e44
--- /dev/null
+++ b/code/app_src/Meal/Burger.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace App\Meal;
+
+class Burger extends MealBaseClass
+{
+	public function __construct()
+	{
+		parent::__construct();
+		$this->setIngredients([
+			new Ingredient('bun', 2),
+		]);
+	}
+}
diff --git a/code/app_src/Meal/Hotdog.php b/code/app_src/Meal/Hotdog.php
new file mode 100644
index 00000000..c3f8e213
--- /dev/null
+++ b/code/app_src/Meal/Hotdog.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace App\Meal;
+
+class Hotdog extends MealBaseClass
+{
+	public function __construct()
+	{
+		parent::__construct();
+		$this->setIngredients([
+			new Ingredient('bun', 1),
+		]);
+	}
+}
diff --git a/code/app_src/Meal/Ingredient.php b/code/app_src/Meal/Ingredient.php
new file mode 100644
index 00000000..a9f338d3
--- /dev/null
+++ b/code/app_src/Meal/Ingredient.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace App\Meal;
+
+class Ingredient
+{
+	private string $name;
+	
+	private int $amount;
+	
+	public function __construct(string $name, int $amount)
+	{
+		$this->name = $name;
+		$this->amount = $amount;
+	}
+	
+	public function getName(): string
+	{
+		return $this->name;
+	}
+	
+	public function getAmount(): int
+	{
+		return $this->$amount;
+	}
+}
\ No newline at end of file
diff --git a/code/app_src/Meal/IngredientAdapter.php b/code/app_src/Meal/IngredientAdapter.php
new file mode 100644
index 00000000..717a03e8
--- /dev/null
+++ b/code/app_src/Meal/IngredientAdapter.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace App\Meal;
+
+class IngredientAdapter
+{	
+	public function createIngredientsArray(array $customerIngredients): array
+	{
+		$ingredients = [];
+		foreach ($customerIngredients as $ingredient => $amount) {
+			$ingredients[] = new Ingredient($ingredient, (int)$amount);
+		}
+		
+		return $ingredients;
+	}
+}
\ No newline at end of file
diff --git a/code/app_src/Meal/MealBaseClass.php b/code/app_src/Meal/MealBaseClass.php
new file mode 100644
index 00000000..05081540
--- /dev/null
+++ b/code/app_src/Meal/MealBaseClass.php
@@ -0,0 +1,63 @@
+<?php
+
+namespace App\Meal;
+
+use SplSubject;
+use SplObjectStorage;
+use SplObserver;
+
+class MealBaseClass implements MealInterface, SplSubject
+{
+	private array $ingredients;
+	private string $status;
+
+	private SplObjectStorage $observers;
+
+	public function __construct()
+	{
+		$this->observers = new SplObjectStorage();
+	}
+
+	public function attach(SplObserver $observer): void
+	{
+		$this->observers->attach($observer);
+	}
+
+	public function detach(SplObserver $observer): void
+	{
+		$this->observers->detach($observer);
+	}
+
+	public function setStatus(string $status): void
+	{
+		$this->status = $status;
+		$this->notify();
+	}
+	
+	public function getStatus(): string
+	{
+		return $this->status;
+	}
+
+	public function notify(): void
+	{
+		foreach ($this->observers as $observer) {
+			$observer->update($this);
+		}
+	}
+	
+	public function getIngredients(): array
+	{
+		return $this->ingredients;
+	}
+	
+	public function setIngredients(array $ingredients = []): void
+	{
+		$this->ingredients = $ingredients;
+	}
+	
+	public function addIngredients(array $ingredients = []): void
+	{
+		$this->ingredients = array_merge($this->ingredients, $ingredients);
+	}
+}
diff --git a/code/app_src/Meal/MealInterface.php b/code/app_src/Meal/MealInterface.php
new file mode 100644
index 00000000..12d57c84
--- /dev/null
+++ b/code/app_src/Meal/MealInterface.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace App\Meal;
+
+interface MealInterface
+{
+	public function getIngredients(): array;
+}
diff --git a/code/app_src/Meal/Sandwich.php b/code/app_src/Meal/Sandwich.php
new file mode 100644
index 00000000..d3e86fe5
--- /dev/null
+++ b/code/app_src/Meal/Sandwich.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace App\Meal;
+
+class Sandwich extends MealBaseClass
+{
+	public function __construct()
+	{
+		parent::__construct();
+		$this->setIngredients([
+			new Ingredient('toast', 2),
+		]);
+	}
+}
diff --git a/code/app_src/Observer/Customer.php b/code/app_src/Observer/Customer.php
new file mode 100644
index 00000000..3802d12b
--- /dev/null
+++ b/code/app_src/Observer/Customer.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace App\Observer;
+
+use SplObserver;
+use SplSubject;
+
+class Customer implements SplObserver
+{
+	public function update(SplSubject $subject): void
+	{
+		echo ($subject->getStatus() . PHP_EOL);
+	}
+}
\ No newline at end of file
diff --git a/code/app_src/RequestValidator.php b/code/app_src/RequestValidator.php
new file mode 100644
index 00000000..beb3a854
--- /dev/null
+++ b/code/app_src/RequestValidator.php
@@ -0,0 +1,28 @@
+<?php
+
+namespace App;
+
+class RequestValidator
+{
+    public static function validate(array $request): array
+    {
+		if (!self::checkRequestType('POST')) {
+			throw new \Exception('Wrong request method');
+		}
+		if (self::checkRequestIsEmpty($request)) {
+			throw new \Exception('Empty request');
+		}
+		
+		return $request;
+    }
+
+    public static function checkRequestType(string $typeNeeded): bool
+    {
+        return $_SERVER['REQUEST_METHOD'] == $typeNeeded ? true : false;
+    }
+
+    public static function checkRequestIsEmpty(array $request): bool
+    {
+        return empty($request) ? true : false;
+    }
+}
diff --git a/code/app_src/Response.php b/code/app_src/Response.php
new file mode 100644
index 00000000..089fc531
--- /dev/null
+++ b/code/app_src/Response.php
@@ -0,0 +1,18 @@
+<?php 
+
+namespace App;
+
+class Response
+{
+    public static function generateOkResponse($responseText)
+    {
+        header('HTTP/1.0 200 Ok');
+        echo $responseText.PHP_EOL;
+    }
+
+    public static function generateBadRequestResponse($responseText)
+    {
+        header('HTTP/1.0 400 Bad Request');
+        echo $responseText.PHP_EOL;
+    }
+}
diff --git a/code/app_src/Strategy/BurgerStrategy.php b/code/app_src/Strategy/BurgerStrategy.php
new file mode 100644
index 00000000..33f13580
--- /dev/null
+++ b/code/app_src/Strategy/BurgerStrategy.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace App\Strategy;
+
+use App\Factory\BurgerFactory;
+use App\Meal\MealInterface;
+use App\Decorator;
+use App\Observer\Customer;
+
+class BurgerStrategy implements CookingStrategyInterface
+{
+	public function prepareIngredients(array $customerIngredients = [], Customer $customer): MealInterface
+	{
+		$baseBurger = $this->generateBaseBurger();
+		$baseBurger->attach($customer);
+		$baseBurger->setStatus('STARTED');
+		return $this->addIngredients($baseBurger, $customerIngredients);
+	}
+	
+	private function generateBaseBurger(): MealInterface
+	{
+		$factory = new BurgerFactory();
+		return $factory->createMealBase();
+	}
+
+	private function addIngredients(MealInterface $baseBurger, array $customerIngredients): MealInterface
+	{
+		$decorator = new Decorator\MealDecorator($baseBurger);
+		$burgerDecorator = new Decorator\BurgerDecorator($decorator);
+		$burgerDecorator->addBaseIngredients();
+		$customerDecorator = new Decorator\CustomerIngredientsDecorator($decorator);
+		$customerDecorator->addCustomerIngredients($customerIngredients);
+		
+		return $decorator;
+	}
+}
diff --git a/code/app_src/Strategy/CookingStrategyInterface.php b/code/app_src/Strategy/CookingStrategyInterface.php
new file mode 100644
index 00000000..c0117ea8
--- /dev/null
+++ b/code/app_src/Strategy/CookingStrategyInterface.php
@@ -0,0 +1,12 @@
+<?php
+
+namespace App\Strategy;
+
+use App\Meal\MealInterface;
+use App\Observer\Customer;
+
+interface CookingStrategyInterface {
+	
+	public function prepareIngredients(array $customerIngredients, Customer $customer): MealInterface;
+
+}
diff --git a/code/app_src/Strategy/HotdogStrategy.php b/code/app_src/Strategy/HotdogStrategy.php
new file mode 100644
index 00000000..ba11eef1
--- /dev/null
+++ b/code/app_src/Strategy/HotdogStrategy.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace App\Strategy;
+
+use App\Factory\HotdogFactory;
+use App\Meal\MealInterface;
+use App\Decorator;
+use App\Observer\Customer;
+
+class HotdogStrategy implements CookingStrategyInterface
+{
+	public function prepareIngredients(array $customerIngredients = [], Customer $customer): MealInterface
+	{
+		$baseHotdog = $this->generateBaseHotdog();
+		$baseHotdog->attach($customer);
+		$baseHotdog->setStatus('STARTED');
+		return $this->addIngredients($baseHotdog, $customerIngredients);
+	}
+
+	private function generateBaseHotdog(): MealInterface
+	{
+		$factory = new HotdogFactory();
+		return $factory->createMealBase();
+	}
+
+	private function addIngredients(MealInterface $baseHotdog, array $customerIngredients): MealInterface
+	{
+		$decorator = new Decorator\MealDecorator($baseHotdog);
+		$HotdogDecorator = new Decorator\HotdogDecorator($decorator);
+		$HotdogDecorator->addBaseIngredients();
+		$customerDecorator = new Decorator\CustomerIngredientsDecorator($decorator);
+		$customerDecorator->addCustomerIngredients($customerIngredients);
+
+		return $decorator;
+	}
+}
diff --git a/code/app_src/Strategy/OrderContext.php b/code/app_src/Strategy/OrderContext.php
new file mode 100644
index 00000000..e2a6ff88
--- /dev/null
+++ b/code/app_src/Strategy/OrderContext.php
@@ -0,0 +1,41 @@
+<?php
+
+namespace App\Strategy;
+
+use App\Observer\Customer;
+use App\Adapter\KitchenAdapter;
+use App\Adapter\KitchenService;
+use App\Meal\MealInterface;
+
+class OrderContext {
+	
+    private CookingStrategyInterface $strategy;
+	private Customer $customerObserver;
+    
+	public function __construct(Customer $customer)
+    {
+		$this->customerObserver = $customer;
+    }
+	
+	public function setCookingStrategy(CookingStrategyInterface $strategy): void
+    {
+		$this->strategy = $strategy;
+    }
+
+	public function getOrderedMeal(array $customerIngredients = []): MealInterface
+    {
+		$orderedMeal = $this->strategy->prepareIngredients($customerIngredients, $this->customerObserver);
+		$orderedMeal->setStatus('INGREDIENTS_PREPARED');
+		
+		try {
+			$kitchen = new KitchenAdapter(new KitchenService());
+			$kitchen->cookMeal($orderedMeal);
+		} catch (\Exception $e) {
+			if ($kitchen instanceof KitchenAdapter) {
+				$kitchen->utilizeMeal($orderedMeal);
+			}
+		}
+		
+		return $orderedMeal;
+    }
+}
diff --git a/code/app_src/Strategy/SandwichStrategy.php b/code/app_src/Strategy/SandwichStrategy.php
new file mode 100644
index 00000000..05c51085
--- /dev/null
+++ b/code/app_src/Strategy/SandwichStrategy.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace App\Strategy;
+
+use App\Factory\SandwichFactory;
+use App\Meal\MealInterface;
+use App\Decorator;
+use App\Observer\Customer;
+
+class SandwichStrategy implements CookingStrategyInterface
+{
+	public function prepareIngredients(array $customerIngredients = [], Customer $customer): MealInterface
+	{
+		$baseSandwich = $this->generateBaseSandwich();
+		$baseSandwich->attach($customer);
+		$baseSandwich->setStatus('STARTED');
+		return $this->addIngredients($baseSandwich, $customerIngredients);
+	}
+
+	private function generateBaseSandwich(): MealInterface
+	{
+		$factory = new SandwichFactory();
+		return $factory->createMealBase();
+	}
+
+	private function addIngredients(MealInterface $baseSandwich, array $customerIngredients): MealInterface
+	{
+		$decorator = new Decorator\MealDecorator($baseSandwich);
+		$SandwichDecorator = new Decorator\SandwichDecorator($decorator);
+		$SandwichDecorator->addBaseIngredients();
+		$customerDecorator = new Decorator\CustomerIngredientsDecorator($decorator);
+		$customerDecorator->addCustomerIngredients($customerIngredients);
+
+		return $decorator;
+	}
+}
diff --git a/code/composer.json b/code/composer.json
new file mode 100644
index 00000000..ebb5c094
--- /dev/null
+++ b/code/composer.json
@@ -0,0 +1,12 @@
+{
+  "require": {
+    "php": ">=7.4",
+    "ext-json": "*",
+    "ext-sockets": "*",
+  },
+  "autoload": {
+    "psr-4": {
+      "App\\": "app_src"
+    }
+  }
+}
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 00000000..4a55c36f
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,69 @@
+version: '3'
+
+services:
+  nginx-balancer:
+    build:
+      context: ./nginx-balancer
+      dockerfile: Dockerfile
+    container_name: nginx-balancer
+    image: localapp/nginx-balancer
+    ports:
+      - "80:80"
+      - "443:443"
+    depends_on:
+       - nginx-webserver1
+       - nginx-webserver2
+    networks:
+      - app-network
+
+  nginx-webserver1:
+    build:
+      context: ./nginx-webserver
+      dockerfile: Dockerfile
+    container_name: nginx-webserver1
+    image: localapp/nginx-webserver
+    ports:
+      - "8081:80"
+    volumes:
+       - ./code:/var/www/otus.local
+    networks:
+      - app-network
+
+  nginx-webserver2:
+    build:
+      context: ./nginx-webserver
+      dockerfile: Dockerfile
+    container_name: nginx-webserver2
+    image: localapp/nginx-webserver
+    ports:
+      - "8082:80"
+    volumes:
+       - ./code:/var/www/otus.local
+    networks:
+      - app-network
+
+  php1:
+    build:
+      context: ./php-fpm
+      dockerfile: Dockerfile
+    image: localapp/php
+    container_name: php1
+    volumes:
+       - ./code:/var/www/otus.local
+    networks:
+      - app-network
+
+  php2:
+    build:
+      context: ./php-fpm
+      dockerfile: Dockerfile
+    image: localapp/php
+    container_name: php2
+    volumes:
+       - ./code:/var/www/otus.local
+    networks:
+      - app-network
+
+networks:
+  app-network:
+    driver: bridge
diff --git a/nginx-balancer/Dockerfile b/nginx-balancer/Dockerfile
new file mode 100644
index 00000000..082a656f
--- /dev/null
+++ b/nginx-balancer/Dockerfile
@@ -0,0 +1,11 @@
+FROM ubuntu:latest
+
+RUN apt-get update && apt-get install -y nginx
+
+COPY ./hosts/nginx-balancer.local.conf /etc/nginx/sites-enabled/otus.local.conf
+
+WORKDIR /var/www/otus.local
+VOLUME /var/www/otus.local
+EXPOSE 80
+
+CMD [ "nginx", "-g", "daemon off;"]
diff --git a/nginx-balancer/hosts/nginx-balancer.local.conf b/nginx-balancer/hosts/nginx-balancer.local.conf
new file mode 100644
index 00000000..2c733d23
--- /dev/null
+++ b/nginx-balancer/hosts/nginx-balancer.local.conf
@@ -0,0 +1,19 @@
+upstream nginx-webservers {
+    server nginx-webserver1;
+    server nginx-webserver2;
+}
+
+server {
+    listen 80;
+
+    server_name otus.local;
+    error_log  /var/log/nginx/error.log;
+    access_log /var/log/nginx/access.log;
+
+    location / {
+	proxy_pass http://nginx-webservers;
+        proxy_set_header Host $host;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Real-IP $remote_addr;
+    }
+}
diff --git a/nginx-webserver/Dockerfile b/nginx-webserver/Dockerfile
new file mode 100644
index 00000000..87b379b2
--- /dev/null
+++ b/nginx-webserver/Dockerfile
@@ -0,0 +1,11 @@
+FROM ubuntu:latest
+
+RUN apt-get update && apt-get install -y nginx
+
+COPY ./hosts/otus.local.conf /etc/nginx/sites-enabled/otus.local.conf
+
+WORKDIR /var/www/otus.local
+VOLUME /var/www/otus.local
+EXPOSE 80
+
+CMD [ "nginx", "-g", "daemon off;"]
diff --git a/nginx-webserver/hosts/otus.local.conf b/nginx-webserver/hosts/otus.local.conf
new file mode 100644
index 00000000..4446e512
--- /dev/null
+++ b/nginx-webserver/hosts/otus.local.conf
@@ -0,0 +1,32 @@
+upstream php-fpm {
+    server php1:9000;
+    server php2:9000;
+}
+
+server {
+    listen 80;
+    index index.php index.html index.htm;
+    server_name otus.local;
+    root /var/www/otus.local;
+    error_log  /var/log/nginx/error.log;
+    access_log /var/log/nginx/access.log;
+
+    location ~* .(jpg|jpeg|gif|css|png|js|html)$ {
+        access_log off;
+	expires max;
+    }
+
+    location / {
+	try_files $uri $uri/ /index.php?$query_string;
+    }
+
+    location ~* .php$ {
+	try_files $uri = 404;
+        fastcgi_split_path_info  (.+?\.php)(/.*)$;
+        fastcgi_pass php-fpm;
+        fastcgi_index index.php;
+        include fastcgi_params;
+        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
+        fastcgi_param PATH_INFO $fastcgi_path_info;
+    }
+}
diff --git a/php-fpm/Dockerfile b/php-fpm/Dockerfile
new file mode 100644
index 00000000..61cb608a
--- /dev/null
+++ b/php-fpm/Dockerfile
@@ -0,0 +1,30 @@
+FROM php:8.0-fpm
+
+RUN apt-get update && apt-get install -y \
+        curl \
+        wget \
+        git \
+        libfreetype6-dev \
+        libjpeg62-turbo-dev \
+	libpng-dev \
+	libonig-dev \
+	libzip-dev \
+	libmcrypt-dev \
+        libmemcached-dev\
+        libmemcached-tools\
+        && pecl install memcached \
+        && docker-php-ext-enable memcached \
+        && pecl install mcrypt-1.0.4 \
+	&& docker-php-ext-enable mcrypt \
+        && docker-php-ext-install -j$(nproc) iconv mbstring mysqli pdo_mysql zip \
+	&& docker-php-ext-configure gd --with-freetype --with-jpeg \
+        && docker-php-ext-install -j$(nproc) gd \
+        && curl -sS https://getcomposer.org/installer \
+        | php -- --install-dir=/usr/local/bin --filename=composer
+
+ADD php.ini /usr/local/etc/php/conf.d/40-custom.ini
+
+WORKDIR /var/www
+VOLUME /var/www
+
+CMD ["php-fpm"]
diff --git a/php-fpm/php.ini b/php-fpm/php.ini
new file mode 100644
index 00000000..a58749e0
--- /dev/null
+++ b/php-fpm/php.ini
@@ -0,0 +1,3 @@
+extension=memcached.so
+session.save_handler = memcache
+session.save_path = "tcp://memcache:11211"