invoiceninja/app/Jobs/Ledger/UpdateLedger.php

<?php
/**
 * Invoice Ninja (https://invoiceninja.com).
 *
 * @link https://github.com/invoiceninja/invoiceninja source repository
 *
 * @copyright Copyright (c) 2023. Invoice Ninja LLC (https://invoiceninja.com)
 *
 * @license https://www.elastic.co/licensing/elastic-license
 */

namespace App\Jobs\Ledger;

use App\Libraries\MultiDB;
use App\Models\CompanyLedger;
use Illuminate\Bus\Queueable;
use Illuminate\Queue\SerializesModels;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Foundation\Bus\Dispatchable;
use Illuminate\Queue\Middleware\WithoutOverlapping;

class UpdateLedger implements ShouldQueue
{
    use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;

    public $tries = 1;
    
    public $deleteWhenMissingModels = true;

    public function __construct(private int $company_ledger_id, private float $start_amount, private string $company_key, private string $db)
    {
    }

    /**
     * Execute the job.
     *
     *
     * @return void
     */
    public function handle() :void
    {
        nlog("Updating company ledger for client ". $this->company_ledger_id);
        
        MultiDB::setDb($this->db);

        $cl = CompanyLedger::find($this->company_ledger_id);
        $entity = $cl->company_ledgerable;
        $balance = $entity->calc()->getBalance();
        $cl->adjustment = $balance - $this->start_amount;
        
            $parent_ledger = CompanyLedger::query()
                ->where('id', '<', $cl->id)
                ->where('company_id', $cl->company_id)
                ->where('client_id', $cl->client_id)
                ->where('balance', '!=', 0)
                ->orderBy('id', 'DESC')
                ->first();

        $cl->balance = ($parent_ledger ? $parent_ledger->balance : 0) + $cl->adjustment;
        $cl->save();

    }

    public function middleware()
    {
        return [new WithoutOverlapping($this->company_key)];
    }
}