fixed static issues

app/Http/helpers.php

@@ -277,7 +277,7 @@ function is_visitor($shared)
  *
  * @param $request
  * @param $name
- * @return string
+ * @return string|null
  */
 function store_avatar($request, $name)
 {
@@ -314,7 +314,7 @@ function store_avatar($request, $name)
  *
  * @param $request
  * @param $name
- * @return string
+ * @return string|null
  */
 function store_system_image($request, $name)
 {
@@ -511,7 +511,7 @@ function format_date($date, $format = '%d. %B. %Y, %H:%M')
 /**
  * Get file type from mimetype
  *
- * @param $file
+ * @param $file_mimetype
  * @return string
  */
 function get_file_type($file_mimetype)
@@ -519,25 +519,11 @@ function get_file_type($file_mimetype)
     // Get mimetype from file
     $mimetype = explode('/', $file_mimetype);
 
-    switch ($mimetype[0]) {
-        case 'image':
-            return 'image';
-
-            break;
-
-        case 'video':
-            return 'video';
-
-            break;
-
-        case 'audio':
-            return 'audio';
-
-            break;
-
-        default:
-            return 'file';
+    if (in_array($mimetype[0], ['image', 'video', 'audio'])) {
+        return $mimetype[0];
     }
+
+    return 'file';
 }
 
 /**
@@ -591,7 +577,7 @@ function get_pretty_name($basename, $name, $mimetype)
  * Get exif data from jpeg image
  *
  * @param $file
- * @return array
+ * @return array|null
  */
 function get_image_meta_data($file)
 {
@@ -859,10 +845,9 @@ function set_time_by_user_timezone($time)
     $user = Auth::user();
 
     if ($user) {
-        // Get the value of timezone if user have some
         $time_zone = intval($user->settings->timezone * 60 ?? null);
 
-        return Carbon::parse($time)->addMinutes($time_zone ?? null);
+        return Carbon::parse($time)->addMinutes($time_zone ?? 0);
     }
 
     return Carbon::parse($time);