invoiceninja/app/Services/Recurring/CreateRecurringInvitations.php

<?php
/**
 * Invoice Ninja (https://invoiceninja.com).
 *
 * @link https://github.com/invoiceninja/invoiceninja source repository
 *
 * @copyright Copyright (c) 2020. Invoice Ninja LLC (https://invoiceninja.com)
 *
 * @license https://opensource.org/licenses/AAL
 */

namespace App\Services\Recurring;

use App\Factory\InvoiceInvitationFactory;
use App\Factory\RecurringInvoiceFactory;
use App\Models\Invoice;
use App\Models\RecurringInvoice;
use App\Models\InvoiceInvitation;
use App\Models\RecurringInvoiceInvitation;
use App\Services\AbstractService;
use Illuminate\Support\Str;

class CreateRecurringInvitations extends AbstractService
{
    private $entity;

    private $entity_name;

    private $entity_id_name;

    private $invitation_class;

    private $invitation_factory;

    public function __construct($entity)
    {
        $this->entity = $entity;
        $this->entity_name = lcfirst(Str::snake(class_basename($entity)));
        $this->entity_id_name = $this->entity_name . "_id";
        $this->invitation_class = 'App\Models\\' . ucfirst(Str::camel($this->entity_name)) . "Invitation";
        $this->invitation_factory = 'App\Factory\\' . ucfirst(Str::camel($this->entity_name)) . "Factory";
    }

    public function run()
    {
        $this->entity->client->contacts->each(function ($contact) {

            $invitation = $this->invitation_class::whereCompanyId($this->entity->company_id)
                                        ->whereClientContactId($contact->id)
                                        ->where($this->entity_id_name, $this->entity->id)
                                        ->withTrashed()
                                        ->first();

            if (! $invitation && $contact->send_email) {
                $ii = $this->invitation_factory::create($this->entity->company_id, $this->entity->user_id);
                $ii->{$this->entity_id_name} = $this->entity->id;
                $ii->client_contact_id = $contact->id;
                $ii->save();
            } elseif ($invitation && ! $contact->send_email) {
                $invitation->delete();
            }

        });

        return $this->entity;
    }
}