solidtime/app/Http/Requests/V1/Member/MemberUpdateRequest.php

<?php

declare(strict_types=1);

namespace App\Http\Requests\V1\Member;

use App\Enums\Role;
use App\Models\Organization;
use Illuminate\Contracts\Validation\ValidationRule;
use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Validation\Rule;

/**
 * @property Organization $organization
 */
class MemberUpdateRequest extends FormRequest
{
    /**
     * Get the validation rules that apply to the request.
     *
     * @return array<string, array<string|ValidationRule|\Illuminate\Contracts\Validation\Rule>>
     */
    public function rules(): array
    {
        return [
            'billable_rate' => [
                'nullable',
                'integer',
                'min:0',
            ],
            'role' => [
                'required',
                'string',
                // TODO: placeholder role should not be allowed
                Rule::enum(Role::class),
            ],
        ];
    }
}