[TASK] Add LTSVersionService

composer.json

@@ -27,7 +27,8 @@
     "dmitryd/typo3-realurl": "^2.2",
     "apache-solr-for-typo3/solr": "^7.0",
     "t3o/t3olayout": "^2.0",
-    "nikic/php-parser": "^3.1"
+    "nikic/php-parser": "^3.1",
+    "nimut/testing-framework": "^2.0"
   },
   "config": {
     "bin-dir": "bin",

html/typo3conf/ext/ter_fe2/Classes/Service/LTSVersionService.php

+<?php
+namespace T3o\TerFe2\Service;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use TYPO3\CMS\Core\Utility\VersionNumberUtility;
+
+/**
+ * Class LTSVersionService
+ */
+class LTSVersionService
+{
+    /**
+     * @var string
+     */
+    public $coreData = '';
+
+
+    public function __construct()
+    {
+        // Will be automatically update with UpdateCurrentVersionListTask see T3o\Ter\Task\UpdateCurrentVersionListTask
+        $sourceFile = PATH_site . $GLOBALS['TYPO3_CONF_VARS']['BE']['fileadminDir'] . 'currentcoredata.json';
+        $json = file_get_contents($sourceFile);
+        $this->coreData = json_decode($json, true);
+    }
+
+    /**
+     * Get the current stable versions
+     *
+     * @return array
+     */
+    public function getCurrentStableVersions()
+    {
+        return [
+            $this->getLatestOldLTS(),
+            $this->getLatestLTS()
+        ];
+    }
+
+    /**
+     * Returns all maintained versions.
+     *
+     * @return array
+     */
+    public function getAllMaintainedVersions()
+    {
+        $versions = $this->getCurrentStableVersions();
+        array_push($versions, $this->getLatestDevelopmentVersion());
+        return $versions;
+    }
+
+    /**
+     * Get latest version within a specific release
+     *
+     * @param int $release
+     * @return string
+     */
+    public function getLatestVersionOfRelease($release)
+    {
+        $versions = [];
+        foreach($this->coreData[$release]['releases'] as $release) {
+            $versions[] = VersionNumberUtility::convertVersionNumberToInteger($release['version']);
+        }
+        sort($versions);
+        return VersionNumberUtility::convertIntegerToVersionNumber(array_pop($versions));
+
+    }
+
+    /**
+     * Get latest development version
+     *
+     * @return string
+     */
+    public function getLatestDevelopmentVersion()
+    {
+        return substr($this->coreData['latest_stable'], 0, 3);
+    }
+
+    /**
+     * Get latest LTS Version
+     *
+     * @return int
+     */
+    private function getLatestLTS()
+    {
+        return (int) substr($this->coreData['latest_lts'], 0, 1);
+    }
+
+    /**
+     * Get latest "old" LTS Version
+     * 
+     * @return int
+     */
+    private function getLatestOldLTS()
+    {
+        return (int) substr($this->coreData['latest_old_lts'], 0, 1);
+    }
+}
\ No newline at end of file

html/typo3conf/ext/ter_fe2/Tests/Unit/Service/LTSVersionServiceTest.php

+<?php
+namespace T3o\TerFe2\Tests\Service;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use Nimut\TestingFramework\TestCase\UnitTestCase;
+use T3o\TerFe2\Service\LTSVersionService;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+
+/**
+ * Class LTSVersionService
+ * @package T3o\TerFe2\Tests\Service
+ */
+class LTSVersionServiceTest extends UnitTestCase
+{
+
+    /**
+     * @var LTSVersionService
+     */
+    protected $subject;
+
+    protected function setUp()
+    {
+        $this->subject = GeneralUtility::makeInstance(LTSVersionService::class);
+        $this->subject->coreData = $this->getSampleData();
+    }
+
+    /**
+     * @test
+     */
+    public function getCurrentStableVersions()
+    {
+        $this->assertSame([7, 8], $this->subject->getCurrentStableVersions());
+    }
+
+    /**
+     * @test
+     */
+    public function getAllMaintainedVersions()
+    {
+        $this->assertSame([7, 8, '9.0'], $this->subject->getAllMaintainedVersions());
+    }
+
+    /**
+     * @test
+     */
+    public function getLatestVersionOfRelease()
+    {
+        $this->assertSame('7.6.21', $this->subject->getLatestVersionOfRelease(7));
+    }
+
+    /**
+     * @test
+     */
+    public function getLatestDevelopmentVersion()
+    {
+        $this->assertSame('9.0', $this->subject->getLatestDevelopmentVersion());
+    }
+
+    /**
+     * Return Sample Json Data for testing purpose
+     *
+     * @return array
+     */
+    private function getSampleData()
+    {
+
+        $versions = [
+            '7' => [
+                'releases' => [
+                    '7.6.23' => [
+                        'version' => '7.6.21'
+                    ],
+                    '7.6.22' => [
+                        'version' => '7.6.20'
+                    ],
+                    '7.6.21' => [
+                        'version' => '7.6.19'
+                    ],
+                ]
+            ],
+            'latest_stable' => '9.0.0',
+            'latest_old_stable' => '8.7.9',
+            'latest_lts' => '8.7.9',
+            'latest_old_lts' => '7.6.21'
+        ];
+
+        return $versions;
+    }
+}
\ No newline at end of file