Added the ability to save user settings.

app/Http/Requests/Private/Profile/UpdateSettingsRequest.php

@@ -0,0 +1,38 @@
+<?php declare(strict_types=1);
+
+namespace App\Http\Requests\Private\Profile;
+
+use App\Contracts\FormRequestDto;
+use App\Dto\Request\Private\Profile\UpdateSettings;
+use App\Enums\Lang;
+use App\Helpers\Helpers;
+use Illuminate\Foundation\Http\FormRequest;
+use Illuminate\Validation\Rule;
+use Illuminate\Validation\Rules\Enum;
+
+final class UpdateSettingsRequest extends FormRequest implements FormRequestDto
+{
+    /**
+     * Get the validation rules that apply to the request.
+     */
+    public function rules(): array
+    {
+        return [
+            'lang' => ['nullable', new Enum(Lang::class)],
+            'timezone' => ['nullable', Rule::in(Helpers::getTimeZoneList()->keys()->toArray())]
+        ];
+    }
+
+    public function getDto(): UpdateSettings
+    {
+        $lang = $this->input('lang', null);
+        if (!is_null($lang)) {
+            $lang = Lang::from((int) $lang);
+        }
+
+        return new UpdateSettings(
+            lang: $lang,
+            timezone: $this->input('timezone', null),
+        );
+    }
+}