Icingadb/CustomVarRenderer: Render key as an HtmlElement

library/Director/ProvidedHook/Icingadb/CustomVarRenderer.php

@@ -12,6 +12,11 @@
 use Icinga\Module\Icingadb\Hook\CustomVarRendererHook;
 use Icinga\Module\Icingadb\Model\Host;
 use Icinga\Module\Icingadb\Model\Service;
+use ipl\Html\Attributes;
+use ipl\Html\Html;
+use ipl\Html\HtmlElement;
+use ipl\Html\Text;
+use ipl\Html\ValidHtml;
 use ipl\Orm\Model;
 
 class CustomVarRenderer extends CustomVarRendererHook
@@ -25,6 +30,14 @@ class CustomVarRenderer extends CustomVarRendererHook
     /** @var array Related dictionary field names */
     protected $dictionaryNames = [];
 
+    protected $dictionaryLevel = 0;
+
+    /** @var ValidHtml Table for dictionary fields */
+    private $dictionaryTable;
+
+    /** @var ValidHtml Table body for dictionary fields */
+    private $dictionaryBody;
+
     /**
      * Get a database connection to the director database
      *
@@ -120,7 +133,11 @@ public function prefetchForObject(Model $object): bool
     public function renderCustomVarKey(string $key)
     {
         if (isset($this->fieldConfig[$key]['label'])) {
-            return $this->fieldConfig[$key]['label'];
+            return new HtmlElement(
+                'span',
+                Attributes::create(['title' => $this->fieldConfig[$key]['label'] . " [$key]"]),
+                Text::create($this->fieldConfig[$key]['label'])
+            );
         }
 
         return null;
@@ -136,7 +153,7 @@ public function renderCustomVarValue(string $key, $value)
             if (isset($this->datalistMaps[$key][$value])) {
                 return $this->datalistMaps[$key][$value];
             } elseif (in_array($key, $this->dictionaryNames)) {
-                return $this->renderDictionaryVal($value);
+                return $this->renderDictionaryVal((array) $value);
             }
         }
 
@@ -157,21 +174,91 @@ public function identifyCustomVarGroup(string $key): ?string
      *
      * @param array $value
      *
-     * @return array
+     * @return ?ValidHtml
      */
-    protected function renderDictionaryVal(array $value): array
+    protected function renderDictionaryVal(array $value): ?ValidHtml
     {
-        $newValue = [];
+        if ($this->dictionaryLevel === 0) {
+            $this->dictionaryTable = new HtmlElement(
+                'table',
+                Attributes::create(['class' => ['custom-var-table', 'name-value-table']])
+            );
+
+            $this->dictionaryBody = new HtmlElement('tbody');
+        }
+
+        $this->dictionaryLevel++;
+
         foreach ($value as $key => $val) {
-            if (is_array($val)) {
+            if (is_array($val) || is_object($val)) {
+                $numItems = count((array) $val);
+
+                $this->dictionaryBody->addHtml(
+                    new HtmlElement(
+                        'tr',
+                        Attributes::create(['class' => "level-{$this->dictionaryLevel}"]),
+                        new HtmlElement('th', null, Html::wantHtml($key)),
+                        new HtmlElement(
+                            'td',
+                            null,
+                            Text::create(sprintf(tp('%d item', '%d items', $numItems), $numItems))
+                        )
+                    )
+                );
+
+                $this->dictionaryLevel++;
                 foreach ($val as $subKey => $subVal) {
                     $label = $this->renderCustomVarKey($subKey) ?? $subKey;
+                    if (in_array($subKey, $this->dictionaryNames)) {
+                        $subVal = (array) $subVal;
+                        $childrenCount = count($subVal);
+                        $this->dictionaryBody->addHtml(
+                            new HtmlElement(
+                                'tr',
+                                Attributes::create(['class' => "level-{$this->dictionaryLevel}"]),
+                                new HtmlElement('th', null, Html::wantHtml($label)),
+                                new HtmlElement(
+                                    'td',
+                                    null,
+                                    Text::create(sprintf(tp('%d item', '%d items', $childrenCount), $childrenCount))
+                                )
+                            )
+                        );
+                    }
+
                     $subVal = $this->renderCustomVarValue($subKey, $subVal) ?? $subVal;
-                    $newValue[$key][$label] = $subVal;
+
+                    if (! in_array($subKey, $this->dictionaryNames)) {
+                        $this->dictionaryBody->addHtml(
+                            new HtmlElement(
+                                'tr',
+                                Attributes::create(['class' => "level-{$this->dictionaryLevel}"]),
+                                new HtmlElement('th', null, Html::wantHtml($label)),
+                                new HtmlElement('td', null, Html::wantHtml($subVal))
+                            )
+                        );
+                    }
                 }
+
+                $this->dictionaryLevel--;
+            } else {
+                $this->dictionaryBody->addHtml(
+                    new HtmlElement(
+                        'tr',
+                        Attributes::create(['class' => "level-{$this->dictionaryLevel}"]),
+                        new HtmlElement('th', null, Html::wantHtml($key)),
+                        new HtmlElement('td', null, Html::wantHtml($val))
+                    )
+                );
             }
         }
 
-        return $newValue;
+        $this->dictionaryLevel--;
+
+        if ($this->dictionaryLevel === 0) {
+            return $this->dictionaryTable->addHtml($this->dictionaryBody);
+        }
+
+        return null;
     }
 }