4 files changed, 138 insertions, 0 deletions
diff --git a/src/Renderer/EngineInterface.php b/src/Renderer/EngineInterface.php
new file mode 100644
index 00000000..ca468db5
--- /dev/null
+++ b/src/Renderer/EngineInterface.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace Engelsystem\Renderer;
+
+interface EngineInterface
+{
+    /**
+     * Render a template
+     *
+     * @param string  $path
+     * @param mixed[] $data
+     * @return string
+     */
+    public function get($path, $data = []);
+
+    /**
+     * @param string $path
+     * @return bool
+     */
+    public function canRender($path);
+}
diff --git a/src/Renderer/HtmlEngine.php b/src/Renderer/HtmlEngine.php
new file mode 100644
index 00000000..75343bbd
--- /dev/null
+++ b/src/Renderer/HtmlEngine.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace Engelsystem\Renderer;
+
+class HtmlEngine implements EngineInterface
+{
+    /**
+     * Render a template
+     *
+     * @param string  $path
+     * @param mixed[] $data
+     * @return string
+     */
+    public function get($path, $data = [])
+    {
+        $template = file_get_contents($path);
+        if (is_array($data)) {
+            foreach ($data as $name => $content) {
+                $template = str_replace('%' . $name . '%', $content, $template);
+            }
+        }
+
+        return $template;
+    }
+
+    /**
+     * @param string $path
+     * @return bool
+     */
+    public function canRender($path)
+    {
+        return strpos($path, '.htm') && file_exists($path);
+    }
+}
diff --git a/src/Renderer/Renderer.php b/src/Renderer/Renderer.php
new file mode 100644
index 00000000..de31ca74
--- /dev/null
+++ b/src/Renderer/Renderer.php
@@ -0,0 +1,47 @@
+<?php
+
+namespace Engelsystem\Renderer;
+
+use Psr\Log\LoggerAwareTrait;
+
+class Renderer
+{
+    use LoggerAwareTrait;
+
+    /** @var EngineInterface[] */
+    protected $renderer = [];
+
+    /**
+     * Render a template
+     *
+     * @param string  $template
+     * @param mixed[] $data
+     * @return string
+     */
+    public function render($template, $data = [])
+    {
+        foreach ($this->renderer as $renderer) {
+            if (!$renderer->canRender($template)) {
+                continue;
+            }
+
+            return $renderer->get($template, $data);
+        }
+
+        if ($this->logger) {
+            $this->logger->error('Unable to find a renderer for template file "{file}"', ['file' => $template]);
+        }
+
+        return '';
+    }
+
+    /**
+     * Add a new renderer engine
+     *
+     * @param EngineInterface $renderer
+     */
+    public function addRenderer(EngineInterface $renderer)
+    {
+        $this->renderer[] = $renderer;
+    }
+}
diff --git a/src/Renderer/RendererServiceProvider.php b/src/Renderer/RendererServiceProvider.php
new file mode 100644
index 00000000..3e8d69bc
--- /dev/null
+++ b/src/Renderer/RendererServiceProvider.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace Engelsystem\Renderer;
+
+use Engelsystem\Container\ServiceProvider;
+
+class RendererServiceProvider extends ServiceProvider
+{
+    public function register()
+    {
+        $this->registerRenderer();
+        $this->registerHtmlEngine();
+    }
+
+    public function boot()
+    {
+        $renderer = $this->app->get('renderer');
+
+        foreach ($this->app->tagged('renderer.engine') as $engine) {
+            $renderer->addRenderer($engine);
+        }
+    }
+
+    protected function registerRenderer()
+    {
+        $renderer = $this->app->make(Renderer::class);
+        $this->app->instance('renderer', $renderer);
+    }
+
+    protected function registerHtmlEngine()
+    {
+        $htmlEngine = $this->app->make(HtmlEngine::class);
+        $this->app->instance('renderer.htmlEngine', $htmlEngine);
+        $this->app->tag('renderer.htmlEngine', ['renderer.engine']);
+    }
+}