Created helper class for ICS files.

src/application/libraries/Ics_file.php

@@ -0,0 +1,91 @@
+<?php defined('BASEPATH') OR exit('No direct script access allowed');
+
+
+/* ----------------------------------------------------------------------------
+ * Easy!Appointments - Open Source Web Scheduler
+ *
+ * @package     EasyAppointments
+ * @author      A.Tselegidis <alextselegidis@gmail.com>
+ * @copyright   Copyright (c) 2013 - 2017, Alex Tselegidis
+ * @license     http://opensource.org/licenses/GPL-3.0 - GPLv3
+ * @link        http://easyappointments.org
+ * @since       v1.3.0
+ * ---------------------------------------------------------------------------- */
+
+use Jsvrcek\ICS\Model\Calendar;
+use Jsvrcek\ICS\Model\CalendarEvent;
+use Jsvrcek\ICS\Model\Relationship\Attendee;
+use Jsvrcek\ICS\Model\Relationship\Organizer;
+use Jsvrcek\ICS\Utility\Formatter;
+use Jsvrcek\ICS\CalendarStream;
+use Jsvrcek\ICS\CalendarExport;
+
+/**
+ * Class Ics_file
+ *
+ * An ICS file is a calendar file saved in a universal calendar format used by several email and calendar programs,
+ * including Microsoft Outlook, Google Calendar, and Apple Calendar.
+ *
+ * Depends on the Jsvrcek\ICS composer package.
+ */
+class Ics_file {
+    /**
+     * Get the ICS file contents for the provided arguments.
+     *
+     * @param array $appointment Appointment.
+     * @param array $service Service.
+     * @param array $provider Provider.
+     * @param array $customer Customer.
+     *
+     * @return string Returns the contents of the ICS file.
+     */
+    public function get_stream($appointment, $service, $provider, $customer)
+    {
+        $appointment_start = new DateTime($appointment['start_datetime']);
+        $appointment_end = new DateTime($appointment['end_datetime']);
+
+        // Setup the event.
+        $event = new CalendarEvent();
+
+        $event
+            ->setStart($appointment_start)
+            ->setEnd($appointment_end)
+            ->setSummary($service['name'])
+            ->setUid($appointment['id']);
+
+        // Add the customer attendee.
+        $attendee = new Attendee(new Formatter());
+
+        if (isset($customer['email']) && ! empty($customer['email']))
+        {
+            $attendee->setValue($customer['email']);
+        }
+
+
+        $attendee->setName($customer['first_name'] . ' ' . $customer['last_name']);
+        $event->addAttendee($attendee);
+
+        // Set the organizer.
+        $organizer = new Organizer(new Formatter());
+
+        $organizer
+            ->setValue($provider['email'])
+            ->setName($provider['first_name'] . ' ' . $provider['last_name']);
+
+        $event->setOrganizer($organizer);
+
+        // Setup calendar.
+        $calendar = new Calendar();
+
+        $calendar
+            ->setProdId('-//EasyAppointments//Open Source Web Scheduler//EN')
+            ->setTimezone(new DateTimeZone($provider['settings']['timezone']))
+            ->addEvent($event);
+
+        // Setup exporter.
+        $calendarExport = new CalendarExport(new CalendarStream, new Formatter());
+        $calendarExport->addCalendar($calendar);
+
+        return $calendarExport->getStream();
+    }
+}