invoiceninja/app/Services/Recurring/RecurringService.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\Models\RecurringInvoice;
use Illuminate\Support\Carbon;

class RecurringService
{
    protected $recurring_entity;

    public function __construct($recurring_entity)
    {
        $this->recurring_entity = $recurring_entity;
    }

    //set schedules - update next_send_dates
    
    /**
     * Stops a recurring invoice
     *
     * @return $this RecurringService object
     */
    public function stop()
    {
        $this->status_id = RecurringInvoice::STATUS_PAUSED;

        return $this;
    }

    public function createInvitations()
    {
        $this->recurring_entity = (new CreateRecurringInvitations($this->recurring_entity))->run();

        return $this;
    }

    public function start()
    {
        //make sure next_send_date is either now or in the future else return.
        // if(Carbon::parse($this->recurring_entity->next_send_date)->lt(now()))
        // 	return $this;

        if ($this->recurring_entity->remaining_cycles == 0) {
            return $this;
        }

        $this->createInvitations()->setStatus(RecurringInvoice::STATUS_ACTIVE);

        return $this;
    }

    public function setStatus($status)
    {
        $this->recurring_entity->status_id = $status;

        return $this;
    }

    /**
     * Applies the invoice number.
     * @return $this InvoiceService object
     */
    public function applyNumber()
    {
        $this->recurring_entity = (new ApplyNumber($this->recurring_entity->client, $this->recurring_entity))->run();

        return $this;
    }

    public function save()
    {
        $this->recurring_entity->save();

        return $this->recurring_entity;
    }
}