Sindbad~EG File Manager

<?php

namespace Maatwebsite\Excel\Jobs;

use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Database\Eloquent\Builder as EloquentBuilder;
use Illuminate\Database\Eloquent\Relations\Relation;
use Illuminate\Database\Query\Builder;
use Illuminate\Foundation\Bus\Dispatchable;
use Illuminate\Queue\InteractsWithQueue;
use Laravel\Scout\Builder as ScoutBuilder;
use Maatwebsite\Excel\Concerns\FromQuery;
use Maatwebsite\Excel\Files\TemporaryFile;
use Maatwebsite\Excel\Jobs\Middleware\LocalizeJob;
use Maatwebsite\Excel\Writer;

class AppendPaginatedToSheet implements ShouldQueue
{
    use Queueable, Dispatchable, ProxyFailures, InteractsWithQueue;

    /**
     * @var TemporaryFile
     */
    public $temporaryFile;

    /**
     * @var string
     */
    public $writerType;

    /**
     * @var int
     */
    public $sheetIndex;

    /**
     * @var FromQuery
     */
    public $sheetExport;

    /**
     * @var int
     */
    public $page;

    /**
     * @var int
     */
    public $perPage;

    /**
     * @param  FromQuery  $sheetExport
     * @param  TemporaryFile  $temporaryFile
     * @param  string  $writerType
     * @param  int  $sheetIndex
     * @param  int  $page
     * @param  int  $perPage
     */
    public function __construct(
        FromQuery $sheetExport,
        TemporaryFile $temporaryFile,
        string $writerType,
        int $sheetIndex,
        int $page,
        int $perPage
    ) {
        $this->sheetExport   = $sheetExport;
        $this->temporaryFile = $temporaryFile;
        $this->writerType    = $writerType;
        $this->sheetIndex    = $sheetIndex;
        $this->page          = $page;
        $this->perPage       = $perPage;
    }

    /**
     * Get the middleware the job should be dispatched through.
     *
     * @return array
     */
    public function middleware()
    {
        return (method_exists($this->sheetExport, 'middleware')) ? $this->sheetExport->middleware() : [];
    }

    /**
     * @param  Writer  $writer
     *
     * @throws \PhpOffice\PhpSpreadsheet\Exception
     * @throws \PhpOffice\PhpSpreadsheet\Reader\Exception
     */
    public function handle(Writer $writer)
    {
        (new LocalizeJob($this->sheetExport))->handle($this, function () use ($writer) {
            $writer = $writer->reopen($this->temporaryFile, $this->writerType);

            $sheet = $writer->getSheetByIndex($this->sheetIndex);

            $sheet->appendRows($this->chunk($this->sheetExport->query()), $this->sheetExport);

            $writer->write($this->sheetExport, $this->temporaryFile, $this->writerType);
        });
    }

    /**
     * @param  Builder|Relation|EloquentBuilder|ScoutBuilder  $query
     */
    protected function chunk($query)
    {
        if ($query instanceof \Laravel\Scout\Builder) {
            return $query->paginate($this->perPage, 'page', $this->page)->items();
        }

        // Fallback
        return $query->forPage($this->page, $this->perPage)->get();
    }
}