<?php
namespace Modules\Builder\Services;
use Illuminate\Support\Facades\DB;
use Modules\Builder\Models\BuilderDocument;
final class BuilderDocumentService
{
    public function save(BuilderDocument $document, array $payload, ?int $userId=null): BuilderDocument
    {
        return DB::transaction(function () use ($document,$payload,$userId) {
            if ($document->exists && $document->isDirty()) $document->versions()->create(['version'=>$document->version,'document'=>$document->getOriginal('document') ?: [],'settings'=>$document->getOriginal('settings') ?: [],'created_by'=>$userId]);
            $document->fill($payload); $document->updated_by=$userId;
            if (!$document->exists) $document->created_by=$userId; else $document->version++;
            $document->save(); return $document->refresh();
        });
    }
}