[task] implement extension configuration interface

Classes/Bootstrap.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace Codappix\SearchCore;
+
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Extbase\Object\ObjectManager;
+
+class Bootstrap
+{
+    /**
+     * @return object|ObjectManager
+     */
+    public static function getObjectManager()
+    {
+        return GeneralUtility::makeInstance(ObjectManager::class);
+    }
+}

Classes/Compatibility/ImplementationRegistrationService.php

@@ -1,4 +1,5 @@
 <?php
+
 namespace Codappix\SearchCore\Compatibility;
 
 /*
@@ -20,7 +21,13 @@ namespace Codappix\SearchCore\Compatibility;
  * 02110-1301, USA.
  */
 
+use Codappix\SearchCore\Domain\Index\TcaIndexer\TcaTableService;
+use Codappix\SearchCore\Domain\Index\TcaIndexer\TcaTableServiceInterface;
+use Codappix\SearchCore\Utility\ExtensionConfiguration;
+use Codappix\SearchCore\Utility\ExtensionConfiguration87;
+use Codappix\SearchCore\Utility\ExtensionConfigurationInterface;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Core\Utility\VersionNumberUtility;
 use TYPO3\CMS\Extbase\Object\Container\Container;
 
 /**
@@ -31,16 +38,39 @@ class ImplementationRegistrationService
 {
     public static function registerImplementations()
     {
+        /** @var Container $container */
         $container = GeneralUtility::makeInstance(Container::class);
 
+        if (VersionNumberUtility::convertVersionNumberToInteger(TYPO3_version) >= 9000000) {
             $container->registerImplementation(
-            \Codappix\SearchCore\Compatibility\TypoScriptServiceInterface::class,
+                ExtensionConfigurationInterface::class,
-            \Codappix\SearchCore\Compatibility\TypoScriptService::class
+                ExtensionConfiguration::class
             );
 
             $container->registerImplementation(
-            \Codappix\SearchCore\Domain\Index\TcaIndexer\TcaTableServiceInterface::class,
+                TypoScriptServiceInterface::class,
-            \Codappix\SearchCore\Domain\Index\TcaIndexer\TcaTableService::class
+                TypoScriptService::class
+            );
+
+            $container->registerImplementation(
+                TcaTableServiceInterface::class,
+                TcaTableService::class
+            );
+        } else if (VersionNumberUtility::convertVersionNumberToInteger(TYPO3_version) >= 8000000) {
+            $container->registerImplementation(
+                ExtensionConfigurationInterface::class,
+                ExtensionConfiguration87::class
+            );
+
+            $container->registerImplementation(
+                TypoScriptServiceInterface::class,
+                TypoScriptService::class
+            );
+
+            $container->registerImplementation(
+                TcaTableServiceInterface::class,
+                TcaTableService::class
             );
         }
+    }
 }

Classes/Utility/ExtensionConfiguration.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace Codappix\SearchCore\Utility;
+
+class ExtensionConfiguration extends \TYPO3\CMS\Core\Configuration\ExtensionConfiguration implements ExtensionConfigurationInterface
+{
+}

Classes/Utility/ExtensionConfiguration87.php

@@ -0,0 +1,11 @@
+<?php
+
+namespace Codappix\SearchCore\Utility;
+
+class ExtensionConfiguration87 implements ExtensionConfigurationInterface
+{
+    public function get($extensionKey)
+    {
+        return unserialize($GLOBALS['TYPO3_CONF_VARS']['EXT']['extConf'][$extensionKey]);
+    }
+}

Classes/Utility/ExtensionConfigurationInterface.php

@@ -0,0 +1,8 @@
+<?php
+
+namespace Codappix\SearchCore\Utility;
+
+interface ExtensionConfigurationInterface
+{
+    public function get($extensionKey);
+}

ext_localconf.php

@@ -44,7 +44,7 @@ call_user_func(
 
 
         // API does make use of object manager, therefore use GLOBALS
-        $extensionConfiguration = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(\TYPO3\CMS\Core\Configuration\ExtensionConfiguration::class)->get($extensionKey);
+        $extensionConfiguration = \Codappix\SearchCore\Bootstrap::getObjectManager()->get(\Codappix\SearchCore\Utility\ExtensionConfigurationInterface::class)->get($extensionKey);
 
         if ($extensionConfiguration === false
             || !isset($extensionConfiguration['disable']['elasticsearch'])