Refactor

src/classes/blog.php

@@ -42,6 +42,27 @@ class Blog
         throw new \Exception('No post found with the slug "' . $slug . '".');
     }
 
+    public static function getPreviousCurrentNextPostBySlug(string $slug): array
+    {
+        $posts = self::get(self::ENDPOINT_POSTS);
+
+        for ($i = 0; $i < count($posts); $i++) {
+            $previous = $posts[$i - 1] ?? null;
+            $current  = $posts[$i]     ?? null;
+            $next     = $psots[$i + 1] ?? null;
+
+            if ($slug === $current->slug) {
+                return array(
+                    'previous' => $previous,
+                    'current'  => $current,
+                    'next'     => $next,
+                );
+            }
+        }
+
+        throw new \Exception('No post found with the slug "' . $slug . '".');
+    }
+
     public static function getPosts(): array
     {
         $posts = self::get(self::ENDPOINT_POSTS);

src/pages/post.php

@@ -9,7 +9,8 @@
 namespace wishthis;
 
 $postSlug      = $_SESSION['_GET']['slug'];
-$post          = Blog::getPostBySlug($postSlug);
+$posts         = Blog::getPreviousCurrentNextPostBySlug($postSlug);
+$post          = $posts['current'];
 $postMediaHTML = isset($post->featured_media) ? Blog::getMediaHTML($post->featured_media) : '';
 $postMedia     = isset($post->featured_media) ? Blog::getMedia($post->featured_media)     : new \stdClss();
 
@@ -47,8 +48,8 @@ $page->navigation();
         </div>
 
         <div class="ui two columns grid">
-            <div class="column">
 
+            <div class="column">
                 <a href="#top" class="ui fluid labeled icon button">
                     <i class="arrow up icon"></i>
                     <?= __('Top') ?>