Add a method for taking the length in seconds and making a string HH:MM:SS

app/src/Domain/Entity/Episode.php

@@ -25,6 +25,9 @@ class Episode
      */
     protected function parseDuration(int $length): string
     {
+        $hours = floor($length / 3600);
+        $minutes = floor($length / 60) % 60;
+        $seconds = $length % 60;
 
         return "";
     }