MaketRandevu/src/application/libraries/google_sync.php

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<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
// Google API PHP Client is necessary to perform sync operations.
require_once dirname(__FILE__) . '/google-api-php-client/Google_Client.php';
require_once dirname(__FILE__) . '/google-api-php-client/contrib/Google_CalendarService.php';
require_once dirname(dirname(dirname(__FILE__))) . '/configuration.php';
class Google_Sync {
private $client;
private $service;
/**
* Class Constructor
*
* This method initializes the google client and the calendar service
* so that they can be used by the other methods.
*/
public function __construct() {
session_start();
$CI =& get_instance();
// Initialize google client and calendar service.
$this->client = new Google_Client();
$this->client->setApplicationName(SystemConfiguration::$google_product_name);
$this->client->setClientId(SystemConfiguration::$google_client_id);
$this->client->setClientSecret(SystemConfiguration::$google_client_secret);
$this->client->setDeveloperKey(SystemConfiguration::$google_api_key);
$this->client->setRedirectUri($CI->config->item('base_url') . 'google/api_auth');
$this->service = new Google_CalendarService($this->client);
}
/**
* Authorize google calendar api.
*
* Before the system is able to use the google calendar api
* it must be authorized to access the users appointment. This
* method checks where an authorization token exists in the
* session cookie and handles the necessary actions.
*
* <strong>IMPORTANT</strong> This method must be called every
* time before the usage of the google api.
*/
public function authorize_api() {
// USE ONLY FOR RESETTING THE TOKEN - DEBUGGING
//unset($_SESSION['google_api_token']);
// If the user is logged out there shouldn't be a token
// entry to the session array.
if (isset($_GET['logout'])) {
unset($_SESSION['google_api_token']);
}
// If there is a 'code' entry available, authenticate the api.
if (isset($_GET['code'])) {
$this->client->authenticate($_GET['code']);
$_SESSION['google_api_token'] = $this->client->getAccessToken();
header('Location: http://' . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF']); // refreshes current url
}
// If there is an active token then assign it to the client object.
if (isset($_SESSION['google_api_token'])) {
$this->client->setAccessToken($_SESSION['google_api_token']);
}
if (!$this->client->getAccessToken()) {
$authUrl = $this->client->createAuthUrl();
header('Location: ' . $authUrl);
}
}
/**
* Synchronize a sigle appointment with Google Calendar.
*
* This method syncs an existing appointment with its' providers
* google calendar account.
*
* @expectedException Exception An error has occured during
* the sync operation.
*
* @param int $appointment_id The appointments database id.
* @return Google_Event Returns the Google_Event class object.
*/
public function sync_appointment($appointment_id) {
// Store the appointment id in the session cookies in case that
// we need to redirect to the authorization page of google.
$_SESSION['sync_appointment_id'] = $appointment_id;
// Before procceeding to the sync operation we must authorize
// the user must authorize the application.
$this->authorize_api();
// Load the models and retrieve the necessary data from db.
$CI =& get_instance();
$CI->load->model('Appointments_Model');
$CI->load->model('Customers_Model');
$CI->load->model('Providers_Model');
$CI->load->model('Services_Model');
$CI->load->model('Settings_Model');
$appointment = $CI->Appointments_Model->get_row($appointment_id);
$customer = $CI->Customers_Model->get_row($appointment['id_users_customer']);
$provider = $CI->Providers_Model->get_row($appointment['id_users_provider']);
$service = $CI->Services_Model->get_row($appointment['id_services']);
// Add a new event to the user's google calendar.
$CI->load->helper('general');
$event = new Google_Event();
$event->setSummary($service['name']);
$event->setLocation($CI->Settings_Model->get_setting('business_name'));
$start = new Google_EventDateTime();
$start->setDateTime(date3339(strtotime($appointment['start_datetime'])));
$event->setStart($start);
$end = new Google_EventDateTime();
$end->setDateTime(date3339(strtotime($appointment['end_datetime'])));
$event->setEnd($end);
$eventProvider = new Google_EventAttendee();
$eventProvider->setDisplayName($provider['first_name'] . ' ' . $provider['last_name']);
//$eventProvider->setSelf(true);
$eventProvider->setEmail($provider['email']);
$eventCustomer = new Google_EventAttendee();
$eventCustomer->setDisplayName($customer['first_name'] . ' ' . $customer['last_name']);
$eventCustomer->setEmail($customer['email']);
$event->attendees = array ($eventProvider, $eventCustomer);
$created_event = $this->service->events->insert('primary', $event);
unset($_SESSION['sync_appointment_id']);
return $created_event;
}
}
/* End of file google_sync.php */
/* Location: ./application/libraries/google_sync.php */