Improve module listing and implement help doc draft for tests

Controller.php

@@ -23,6 +23,7 @@ use phpOMS\Utils\Parser\Markdown\Markdown;
 use phpOMS\Module\ModuleAbstract;
 use phpOMS\Module\WebInterface;
 use phpOMS\Views\View;
+use phpOMS\Message\Http\RequestStatusCode;
 
 /**
  * Help class.
@@ -152,8 +153,30 @@ final class Controller extends ModuleAbstract implements WebInterface
      */
     public function viewHelpModule(RequestAbstract $request, ResponseAbstract $response, $data = null) : \Serializable
     {
+        $active = $this->app->moduleManager->getActiveModules();
+
+        if ($request->getData('id') === null || !isset($active[$request->getData('id')])) {
+            return $this->viewHelpModuleList();
+        }
+
         $view = new View($this->app, $request, $response);
+
+        if ($request->getData('page') === 'table-of-contencts' || $request->getData('page') === null) {
+            $path = \realpath(__DIR__ . '/../' . $request->getData('id') . '/Docs/Help/en/table_of_contents.md');
+        } else {
+            $path = \realpath(__DIR__ . '/../' . $request->getData('id') . '/Docs/Help/en/' . $request->getData('page') . '.md');
+        }
+
+        if ($path === false) {
+            $view->setTemplate('/Web/Backend/Error/403_inline');
+            $response->getHeader()->setStatusCode(RequestStatusCode::R_403);
+            return $view;
+        }
+
+        $markdown = Markdown::parse(\file_get_contents($path));
+
         $view->setTemplate('/Modules/Help/Theme/Backend/help-module');
+        $view->setData('content', $markdown);
 
         return $view;
     }

Theme/Backend/Lang/en.lang.php

@@ -0,0 +1,16 @@
+<?php
+/**
+ * Orange Management
+ *
+ * PHP Version 7.2
+ *
+ * @package    TBD
+ * @copyright  Dennis Eichhorn
+ * @license    OMS License 1.0
+ * @version    1.0.0
+ * @link       http://website.orange-management.de
+ */
+return ['Help' => [
+    'Modules' => 'Modules',
+    'Name'    => 'Name',
+]];

Theme/Backend/help-module-list.tpl.php

@@ -0,0 +1,52 @@
+<?php
+/**
+ * Orange Management
+ *
+ * PHP Version 7.2
+ *
+ * @package    Modules\Admin\Template\Backend
+ * @copyright  Dennis Eichhorn
+ * @license    OMS License 1.0
+ * @version    1.0.0
+ * @link       http://website.orange-management.de
+ */
+
+/**
+ * @var \phpOMS\Views\View $this
+ */
+
+$modules = $this->app->moduleManager->getInstalledModules();
+?>
+
+<div class="row">
+    <div class="col-xs-12">
+        <div class="box wf-100">
+            <table class="table red">
+                <caption><?= $this->getHtml('Modules') ?></caption>
+                <thead>
+                <tr>
+                    <td class="wf-100"><?= $this->getHtml('Name') ?>
+                <tfoot>
+                <tr>
+                    <td>
+                <tbody>
+                    <?php $count = 0; foreach ($modules as $key => $module) : 
+                        if ((\realpath(__DIR__ . '/../../../' . $module['directory'] . '/Docs/Help/en/table_of_contents.md')) === false) {
+                            continue;
+                        }
+
+                        $count++;
+                        $url = \phpOMS\Uri\UriFactory::build(
+                            '/{/lang}/backend/help/module/single?id={$module}', 
+                            ['$module' => $module['name']['internal']]
+                        ); ?>
+                <tr data-href="<?= $url; ?>">
+                    <td data-label="<?= $this->getHtml('Name') ?>"><a href="<?= $url; ?>"><?= $this->printHtml($module['name']['external']); ?></a>
+                    <?php endforeach; ?>
+                <?php if ($count === 0) : ?>
+                    <tr><td class="empty"><?= $this->getHtml('Empty', 0, 0); ?>
+                <?php endif; ?>
+            </table>
+        </div>
+    </div>
+</div>

Theme/Backend/help-module.tpl.php

@@ -3,7 +3,7 @@
         <section class="box wf-100">
             <div class="inner">
                 <article>
-                    <?= $this->getData('markdown'); ?>
+                    <?= $this->getData('content'); ?>
                 </article>
             </div>
         </section>