autocde2.0/app/Imports/ImportValidatorHelper.php

<?php

namespace App\Imports;

use App\Http\Controllers\JsonResponseHelper;
use Illuminate\Support\Collection;
use Illuminate\Support\Facades\Validator;

trait ImportValidatorHelper
{
    use JsonResponseHelper;

    protected function validatorByCollection(Collection $collection, array $rules, array $messages = [])
    {
        $errors = [];
        foreach ($collection as $index => $item) {
            $validator = Validator::make($item->toArray(), $rules, $messages);

            if ($validator->fails()) {
                $errors[$index + 1] = [
                    'index' => $index + 1,
                    'errors' => $validator->errors()->all()
                ];
            }
        }

        if ($errors) {
            throw new \App\Exceptions\ValidationException(errors: array_values($errors));
        }
    }
}