Add blog post link preview

src/classes/blog.php

@@ -89,6 +89,28 @@ class Blog
         return $htmlPicture;
     }
 
+    public static function getMediaPreviewURL(int $mediaID): string
+    {
+        $url = '';
+
+        $media      = self::getMedia($mediaID);
+        $mediaSizes = (array) $media->media_details->sizes;
+        uasort(
+            $mediaSizes,
+            function ($a, $b) {
+                $sizeA = $a->width + $a->height;
+                $sizeB = $b->width + $b->height;
+
+                return $sizeA <=> $sizeB;
+            }
+        );
+        $mediaSmallest = (object) reset($mediaSizes);
+
+        $url = $mediaSmallest->source_url;
+
+        return $url;
+    }
+
     public static function getCategory(int $categoryID): \stdClass
     {
         $category = self::get(sprintf(self::ENDPOINT_CATEGORIES, $categoryID));

src/classes/page.php

@@ -99,8 +99,9 @@ class Page
     /**
      * Non-Static
      */
-    public string $language = DEFAULT_LOCALE;
-    public array $messages  = array();
+    public string $language     = DEFAULT_LOCALE;
+    public array $messages      = array();
+    public string $link_preview;
 
     /**
      * __construct

src/pages/post.php

@@ -11,8 +11,14 @@ namespace wishthis;
 $postSlug      = $_SESSION['_GET']['slug'];
 $post          = Blog::getPostBySlug($postSlug);
 $postMediaHTML = isset($post->featured_media) ? Blog::getMediaHTML($post->featured_media) : '';
+$postMediaURL  = isset($post->featured_media) ? Blog::getMediaPreviewURL($post->featured_media) : '';
 
 $page = new Page(__FILE__, $post->title->rendered);
+
+if ('' !== $postMediaURL) {
+    $page->link_preview = $postMediaURL;
+}
+
 $page->header();
 $page->bodyStart();
 $page->navigation();