sfp_api_laravel_ginastica_cerebro/app/Http/Requests/UserRequest.php

<?php

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;
use App\Enums\UserTypeSource;
use Illuminate\Validation\Rule;

class UserRequest extends FormRequest
{
    public function rules(): array
    {
        $rules = [
            'name' => 'sometimes|string|nullable',
            'password' => 'sometimes|string|nullable',
            'type' => ['sometimes', Rule::enum(UserTypeSource::class)],
            'email' => 'sometimes|unique:users,email|email',
            'language' => 'sometimes|string|nullable',
        ];

        if ($this->isMethod('post')) {

            $rules['name'] = 'required|string';
            $rules['password'] = 'required|string';
            $rules['email'] = 'required|unique:users,email|email';
            $rules['language'] = 'sometimes|string|in:pt,en,es';

            if (!$this->has('language')) {
                $this->merge(['language' => 'pt']);
            };
        }


        return $rules;
    }
}