first commit

modules/empikmarketplace/src/Utils/IdentifierExtractor.php

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+<?php
+
+namespace Empik\Marketplace\Utils;
+
+use Configuration;
+use Empik\Marketplace\Adapter\ConfigurationAdapter;
+use Empik\Marketplace\Exception\LogicException;
+
+class IdentifierExtractor
+{
+    const IDENTIFIER_EAN = 'EAN';
+    const IDENTIFIER_SKU = 'SHOP_SKU';
+
+    /** @var string */
+    protected $identifierType;
+
+    public function __construct()
+    {
+        $this->identifierType = Configuration::get(ConfigurationAdapter::CONF_OFFER_IDENTIFIER);
+    }
+
+    /**
+     * @return bool|false|string
+     */
+    public function getIdentifierType()
+    {
+        return $this->identifierType;
+    }
+
+    /**
+     * @return string
+     * @throws LogicException
+     */
+    public function getFilterKey()
+    {
+        switch ($this->identifierType) {
+            case self::IDENTIFIER_EAN:
+                $key = 'p.ean13';
+                break;
+            case self::IDENTIFIER_SKU:
+                $key = 'p.reference';
+                break;
+            default:
+                throw new LogicException(sprintf('Unknown identifier type: "%s"', $this->identifierType));
+        }
+
+        return $key;
+    }
+
+    /**
+     * @param array $product
+     * @return mixed|string
+     * @throws LogicException
+     */
+    public function extract(array $product)
+    {
+        switch ($this->identifierType) {
+            case self::IDENTIFIER_EAN:
+                $identifier = isset($product['ean13']) ? $product['ean13'] : '';
+                break;
+            case self::IDENTIFIER_SKU:
+                $identifier = isset($product['reference']) ? $product['reference'] : '';
+                break;
+            default:
+                throw new LogicException(sprintf('Unknown identifier type: "%s"', $this->identifierType));
+        }
+
+        return $identifier;
+    }
+}