5 files changed, 53 insertions, 13 deletions
diff --git a/src/Controllers/Metrics/MetricsEngine.php b/src/Controllers/Metrics/MetricsEngine.php
index 1e0f6957..21ae8fd0 100644
--- a/src/Controllers/Metrics/MetricsEngine.php
+++ b/src/Controllers/Metrics/MetricsEngine.php
@@ -9,13 +9,13 @@ class MetricsEngine implements EngineInterface
     /**
      * Render metrics
      *
-     * @example $data = ['foo' => [['labels' => ['foo'=>'bar'], 'value'=>42]], 'bar'=>123]
-     *
      * @param string  $path
      * @param mixed[] $data
      * @return string
+     *
+     * @example $data = ['foo' => [['labels' => ['foo'=>'bar'], 'value'=>42]], 'bar'=>123]
      */
-    public function get($path, $data = []): string
+    public function get(string $path, array $data = []): string
     {
         $return = [];
         foreach ($data as $name => $list) {
@@ -52,7 +52,7 @@ class MetricsEngine implements EngineInterface
      * @param string $path
      * @return bool
      */
-    public function canRender($path): bool
+    public function canRender(string $path): bool
     {
         return $path == '/metrics';
     }
@@ -60,8 +60,8 @@ class MetricsEngine implements EngineInterface
     /**
      * @param string      $name
      * @param array|mixed $row
-     * @see https://prometheus.io/docs/instrumenting/exposition_formats/
      * @return string
+     * @see https://prometheus.io/docs/instrumenting/exposition_formats/
      */
     protected function formatData($name, $row): string
     {
@@ -135,4 +135,12 @@ class MetricsEngine implements EngineInterface
             $value
         );
     }
+
+    /**
+     * Does nothing as shared data will onyly result in unexpected behaviour
+     *
+     * @param string|mixed[] $key
+     * @param mixed          $value
+     */
+    public function share($key, $value = null) { }
 }
diff --git a/src/Renderer/Engine.php b/src/Renderer/Engine.php
new file mode 100644
index 00000000..60f1d686
--- /dev/null
+++ b/src/Renderer/Engine.php
@@ -0,0 +1,22 @@
+<?php
+
+namespace Engelsystem\Renderer;
+
+abstract class Engine implements EngineInterface
+{
+    /** @var array */
+    protected $sharedData = [];
+
+    /**
+     * @param mixed[]|string $key
+     * @param null           $value
+     */
+    public function share($key, $value = null)
+    {
+        if (!is_array($key)) {
+            $key = [$key => $value];
+        }
+
+        $this->sharedData = array_replace_recursive($this->sharedData, $key);
+    }
+}
diff --git a/src/Renderer/EngineInterface.php b/src/Renderer/EngineInterface.php
index ca468db5..3bce9c02 100644
--- a/src/Renderer/EngineInterface.php
+++ b/src/Renderer/EngineInterface.php
@@ -11,11 +11,17 @@ interface EngineInterface
      * @param mixed[] $data
      * @return string
      */
-    public function get($path, $data = []);
+    public function get(string $path, array $data = []): string;
 
     /**
      * @param string $path
      * @return bool
      */
-    public function canRender($path);
+    public function canRender(string $path): bool;
+
+    /**
+     * @param string|mixed[] $key
+     * @param mixed          $value
+     */
+    public function share($key, $value = null);
 }
diff --git a/src/Renderer/HtmlEngine.php b/src/Renderer/HtmlEngine.php
index 1feafcda..0ccffa65 100644
--- a/src/Renderer/HtmlEngine.php
+++ b/src/Renderer/HtmlEngine.php
@@ -2,7 +2,7 @@
 
 namespace Engelsystem\Renderer;
 
-class HtmlEngine implements EngineInterface
+class HtmlEngine extends Engine
 {
     /**
      * Render a template
@@ -11,9 +11,11 @@ class HtmlEngine implements EngineInterface
      * @param mixed[] $data
      * @return string
      */
-    public function get($path, $data = [])
+    public function get(string $path, array $data = []): string
     {
+        $data = array_replace_recursive($this->sharedData, $data);
         $template = file_get_contents($path);
+
         if (is_array($data)) {
             foreach ($data as $name => $content) {
                 $template = str_replace('%' . $name . '%', $content, $template);
@@ -27,7 +29,7 @@ class HtmlEngine implements EngineInterface
      * @param string $path
      * @return bool
      */
-    public function canRender($path)
+    public function canRender(string $path): bool
     {
         return mb_strpos($path, '.htm') !== false && file_exists($path);
     }
diff --git a/src/Renderer/TwigEngine.php b/src/Renderer/TwigEngine.php
index 55a2e299..aa51a177 100644
--- a/src/Renderer/TwigEngine.php
+++ b/src/Renderer/TwigEngine.php
@@ -7,7 +7,7 @@ use Twig_Error_Loader as LoaderError;
 use Twig_Error_Runtime as RuntimeError;
 use Twig_Error_Syntax as SyntaxError;
 
-class TwigEngine implements EngineInterface
+class TwigEngine extends Engine
 {
     /** @var Twig */
     protected $twig;
@@ -25,8 +25,10 @@ class TwigEngine implements EngineInterface
      * @return string
      * @throws LoaderError|RuntimeError|SyntaxError
      */
-    public function get($path, $data = [])
+    public function get(string $path, array $data = []): string
     {
+        $data = array_replace_recursive($this->sharedData, $data);
+
         return $this->twig->render($path, $data);
     }
 
@@ -34,7 +36,7 @@ class TwigEngine implements EngineInterface
      * @param string $path
      * @return bool
      */
-    public function canRender($path)
+    public function canRender(string $path): bool
     {
         return $this->twig->getLoader()->exists($path);
     }