autocde2.0/app/Http/Requests/API/CustomField/CreateOrUpdateRequest.php

<?php

namespace App\Http\Requests\API\CustomField;

use App\Http\Requests\RuleHelper;
use App\Models\Enums\CustomFieldGroupType;
use App\Models\Enums\CustomFieldType;
use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Validation\Rule;
use Illuminate\Validation\Rules\Enum;

class CreateOrUpdateRequest extends FormRequest
{
    use RuleHelper;
    /**
     * Determine if the user is authorized to make this request.
     */
    public function authorize(): bool
    {
        return true;
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array<string, \Illuminate\Contracts\Validation\ValidationRule|array<mixed>|string>
     */
    public function rules(): array
    {
        return [
            'group_type' => ['required', new Enum(CustomFieldGroupType::class)],
            'key' => 'required',
            'group' => 'required',
            'type' => [
                'required',
                new Enum(CustomFieldType::class),
            ],
            'required' => 'in:0,1',
            'label' => 'required|array',
            'options' => 'array',
        ];
    }

    public function importRules(): array
    {
        return [
            'key' => 'required',
            'type' => [
                'required',
                new Enum(CustomFieldType::class),
            ],
            'custom_key'=> 'required_if:type,3',
            'custom_value'=>'required',
        ];
    }
}