Downloading files, calculating video size.

app/Models/Chapter.php

@@ -8,6 +8,7 @@ use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
 
 /**
+ * @property int $id
  * @property int $order
  * @property string $link
  * @property string $video_link
@@ -18,6 +19,7 @@ use Illuminate\Database\Eloquent\Relations\BelongsTo;
  * @property bool $sync_offline
  * @property string $video_path
  * @property string $directory_path
+ * @property Course $course
  */
 class Chapter extends Model
 {
@@ -34,6 +36,8 @@ class Chapter extends Model
         'sync_offline',
     ];
 
+    protected $appends = ['video_path', 'directory_path'];
+
     public function course(): BelongsTo
     {
         return $this->belongsTo(Course::class);
@@ -52,4 +56,11 @@ class Chapter extends Model
             get: fn() => $this->course_id . '.' . $this->course->link
         );
     }
+
+    protected function isVideoFile(): Attribute
+    {
+        return Attribute::make(
+            get: fn() => is_file($this->video_path)
+        );
+    }
 }