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

<?php

namespace App\Http\Requests\API\Library;

use App\Http\Requests\RuleHelper;
use App\Models\Enums\LibraryACL;
use App\Models\Enums\LibraryType;
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
    {
        $rules = [
            'name' => 'required',
            'type' => [
                'required',
                new Enum(LibraryType::class)
            ],
            'acl' => [
                'required',
                new Enum(LibraryACL::class),
            ],
            'whitelist' => $this->usersCompanyRules(),
        ];

        switch ($this->request->get("type")) {
            case LibraryType::ASSET->value:
                $rules['asset_id'] = [
                    'required',
                    Rule::exists('assets', 'id')->where($this->userCompanyWhere()),
                ];
                break;
            case LibraryType::PROJECT->value:
                $rules['project_id'] = [
                    'required',
                    Rule::exists('projects', 'id')->where($this->userCompanyWhere()),
                ];
                break;
        }

        return $rules;
    }
}