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

<?php

namespace App\Http\Requests\API\Approval;

use App\Models\ApprovalFlow;
use App\Models\Enums\ApprovalObjectType;
use App\Models\Enums\FileObjectType;
use App\Models\Enums\ObjectApprovalStatus;
use App\Models\File;
use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Support\Facades\Auth;
use Illuminate\Validation\Rules\Enum;

class CreateOrUpdateRequest extends FormRequest
{
    /**
     * 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
    {
        $rule = [];

        if ($this->method() == "POST") {
            $rule = [
                ...$rule,
                'object_type' => [
                    'required',
                    new Enum(ApprovalObjectType::class),
                ],
                'object_id' => [
                    'required',
                    function ($attribute, $value, $fail) {
                        $exist = ApprovalObjectType::from($this->get("object_type"))
                            ->modelBuilderAllowed($value)
                            ->where('id', $value)
                            ->count();
                        if (! $exist) {
                            $fail('Resources without permission to access.');
                        }
                    }
                ],
                'file_ids' => [
                    'array',
                    function ($attribute, $value, $fail) {
                        $count = File::query()
                            ->whereIn('id', $value)
                            ->where("object_type", FileObjectType::CONTAINER)
                            ->where("object_id", $this->get("object_id"))
                            ->whereIn("approval_status", [ObjectApprovalStatus::WAIT, ObjectApprovalStatus::REJECTED])
                            ->count();
                        if ($count != count($value)) {
                            $fail('Please select the file to be approved.');
                        }
                    }
                ],
                'approvalFlow_id' =>[
                    'required',
                    function ($attribute, $value, $fail) {
                        $exist = ApprovalFlow::query()
                            ->where('id', $value)
                            ->where('status', 1)
                            ->count();
                        if (! $exist) {
                            $fail('Resources without permission to access.');
                        }
                    }
                ]
            ];
        }

        return $rule;
    }
}