sfp_api_laravel_serprati/app/Http/Requests/UserDependentRequest.php

<?php

namespace App\Http\Requests;

use App\Enums\KinshipEnum;
use App\Enums\UserDependentStatusEnum;
use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Validation\Rule;

class UserDependentRequest extends FormRequest
{
    public function rules(): array
    {
        $rules = [
            'responsible_user_id' => 'sometimes|integer|exists:users,id',
            'name'                => 'sometimes|string|max:255',
            'kinship'             => ['sometimes', Rule::enum(KinshipEnum::class)],
            'status'              => ['sometimes', Rule::enum(UserDependentStatusEnum::class)],
        ];

        if ($this->isMethod('post')) {
            $rules['responsible_user_id'] = 'required|integer|exists:users,id';
            $rules['name']                = 'required|string|max:255';
            $rules['kinship']             = ['required', Rule::enum(KinshipEnum::class)];
        }

        return $rules;
    }
}