Add Food Item service & DAL

Author: pH-7

src/Dal/FoodItemDal.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace PH7\ApiSimpleMenu\Dal;
+
+
+use Ramsey\Uuid\Uuid;
+use RedBeanPHP\R;
+class FoodItemDal
+{
+    public const TABLE_NAME = 'fooditems'; // Cannot have underscore. Use one word
+
+    public static function get(string $itemUuid): ?array
+    {
+        $bindings = ['itemUuid' => $itemUuid];
+        $itemBean = R::findOne(self::TABLE_NAME, 'item_uuid = :itemUuid', $bindings);
+
+        return $itemBean?->export();
+    }
+
+    public static function getAll(): array
+    {
+        return R::findAll(self::TABLE_NAME);
+    }
+
+    public static function create(): void
+    {
+        $itemBan = R::dispense(self::TABLE_NAME);
+
+        $itemBan->item_uuid = Uuid::uuid4()->toString();
+        $itemBan->name = 'Burrito Chips';
+        $itemBan->price = 19.55;
+        $itemBan->available = true;
+
+        R::store($itemBan);
+    }
+}

src/Service/FoodItem.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace PH7\ApiSimpleMenu\Service;
+
+use PH7\ApiSimpleMenu\Dal\FoodItemDal;
+use PH7\ApiSimpleMenu\Validation\Exception\InvalidValidationException;
+use Respect\Validation\Validator as v;
+
+class FoodItem
+{
+    public function __construct()
+    {
+        // Generate an item for us
+        FoodItemDal::create();
+    }
+
+    public function retrieve(string $itemUuid): array
+    {
+        if (v::uuid()->validate($itemUuid)) {
+            if ($item = FoodItemDal::get($itemUuid)) {
+                // Removing fields we don't want to expose
+                unset($item['id']);
+
+                return $item;
+            }
+
+            return [];
+        }
+
+        throw new InvalidValidationException("Invalid user UUID");
+    }
+
+    public function retrieveAll(): array
+    {
+        $items = FoodItemDal::getAll();
+
+        return array_map(function (object $item): object {
+            // Remove unnecessary "id" field
+            unset($item['id']);
+            return $item;
+        }, $items);
+    }
+}

src/routes/food-item.routes.php

@@ -0,0 +1,52 @@
+<?php
+namespace PH7\ApiSimpleMenu;
+
+use PH7\ApiSimpleMenu\Service\FoodItem;
+use PH7\ApiSimpleMenu\Validation\Exception\InvalidValidationException;
+
+use PH7\JustHttp\StatusCode;
+use PH7\PhpHttpResponseHeader\Http;
+
+enum FoodItemAction: string
+{
+    case RETRIEVE_ALL = 'retrieveall';
+    case RETRIEVE = 'retrieve';
+
+    public function getResponse(): string
+    {
+        $postBody = file_get_contents('php://input');
+        $postBody = json_decode($postBody);
+
+        // Ternary conditional operator operator
+        $itemId = $_REQUEST['id'] ?? ''; // using the null coalescing operator
+
+        $item = new FoodItem();
+        try {
+            $response = match ($this) {
+                self::RETRIEVE_ALL => $item->retrieveAll(),
+                self::RETRIEVE => $item->retrieve($itemId),
+            };
+        } catch (InvalidValidationException $e) {
+            // Send 400 http status code
+            Http::setHeadersByCode(StatusCode::BAD_REQUEST);
+
+            $response = [
+                'errors' => [
+                    'message' => $e->getMessage(),
+                    'code' => $e->getCode()
+                ]
+            ];
+        }
+
+        return json_encode($response);
+    }
+}
+
+$action = $_REQUEST['action'] ?? null;
+
+$itemAction = FoodItemAction::tryFrom($action);
+if ($itemAction) {
+    echo $itemAction->getResponse();
+} else {
+    require_once 'not-found.routes.php';
+}