/homeprezzo-embed.php

<?php



/**

 * Plugin Name:  HomePrezzo Embed

 * Plugin URI:   

 * Description:  Provides embed codes to HomePrezzo Prezzos via WordPress shortcodes

 * Version:      1.0.0

 * Author:       HomePrezzo

 * Author URI:   https://homeprezzo.com.au

 * Text Domain:  homeprezzo-embed

 * License:      GPL-2.0+

 * License URI:  http://www.gnu.org/licenses/gpl-2.0.txt

 */



class HomeprezzoEmbed {

  

  const prefix = 'homeprezzo_embed_';



  private $settings = [

    'client_id' => '',

    'client_secret' => '',

    'scope' => 'readPrezzo readUserProfile readJournoAiContent suggestionSearch',

    'accessToken' => '',

    'accessTokenExpiry' => '',

    'refreshToken' => '',

    'refreshTokenExpiry' => '',

    'username' => '',

  ];



  private $config = [

    'scope' => 'readPrezzo readUserProfile readJournoAiContent suggestionSearch',

  ];



  private static $instance;



  public static function getInstance() {



    # If the plugin has not been instantiated

    if (null === static::$instance) {



      # Instantiate the plugin as a static instance

      static::$instance = new HomeprezzoEmbed();

    }



    # Return the plugin instance

    return static::$instance;

  }



  protected function __construct() {



    $this->config['redirect'] = (

      (

        (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') || 

        (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https')

      )

        ? preg_replace("/http:/", 'https:', get_site_url())

        : get_site_url()

      ) . '/index.php?homeprezzo-embed';



    register_activation_hook(__FILE__, array($this, 'activate'));

    register_deactivation_hook(__FILE__, array($this, 'deactivate'));

    self::add_shortcodes();

    self::add_filters();

    self::add_actions();

    self::add_options_page();

    self::add_javascript();

    self::add_rewrites();

    self::add_editor_plugins();

    self::add_editor_buttons();



  }



  private function __clone() {

  }



  private function __wakeup() {

  }



  private function getSetting($setting) {



    $settings = get_option(self::prefix . 'settings', $this->settings);



    return (isset($settings[$setting])) ? $settings[$setting] : NULL;



  }



  private function setSetting($setting, $value) {



    $settings = get_option(self::prefix . 'settings', $this->settings);



    $settings[$setting] = $value;



    update_option(self::prefix . 'settings', $settings);



  }



  private function getConfig($option) {

    return $this->config[$option];

  }



  public function activate() {

    

    add_option(self::prefix . 'settings', $this->settings);

  

  }



  public function deactivate() {



    delete_option(self::prefix . 'settings');



  }



  public function add_shortcodes() {

    add_shortcode('hpe', array($this, 'shortcode_embed'));

  }



  public function shortcode_embed($atts) {

    $embed_url = 'https://app.homeprezzo.com.au/embed.js?id=' . urlencode($atts['p']);

    if (isset($atts['c'])) {

      $embed_url .= '&background=' . urlencode(urlencode($atts['c']));

    }

    $embed = "

      <div class=\"homeprezzo-embed\">

        <script language=\"javascript\" src=\"{$embed_url}\"></script>

      </div>

    ";

    return $embed;

  }



  public function add_filters() {



    add_filter('query_vars', array($this, 'query_vars'));



  }



  public function add_actions() {



    add_action('parse_request', array($this, 'request_parsers'));



  }



  public function add_rewrites() {

    add_action('init', array($this, 'rewrites'));

  }



  public function add_editor_buttons() {

    add_filter('mce_buttons', array($this, 'register_mce_embed_button'));

  }



  public function add_editor_plugins() {

    add_filter('mce_external_plugins', array($this, 'enqueue_mce_embed'));

    add_action("admin_print_footer_scripts", array($this, 'enqueue_qtags'));

  }



  public function enqueue_mce_embed($plugins) {

    $plugins['homeprezzo_embed_shortcode'] = plugin_dir_url(__FILE__) . 'js/mce.homeprezzo-embed.js';

    return $plugins;

  }



  public function register_mce_embed_button($buttons) {

    $buttons[] = 'homeprezzo-embed-shortcode';

    return $buttons;

  }



  public function rewrites() {

    add_rewrite_rule('^homeprezzo-embed/?', 'index.php?homeprezzo-embed', 'top');

    add_rewrite_rule('^homeprezzo-embed/prezzos/?', 'index.php?homeprezzo-embed=0&f=prezzos', 'top');

  }



  public function request_parsers($wp) {

    if (

      array_key_exists('homeprezzo-embed', $wp->query_vars) &&

      array_key_exists('code', $wp->query_vars)

    ) {

      self::doRemoteAuth($wp->query_vars);

    }

    elseif (

      array_key_exists('homeprezzo-embed', $wp->query_vars) &&

      array_key_exists('f', $wp->query_vars)

    ) {

      if (!self::getSetting('accessToken')) {

        header('Content-Type: text/json');

        print json_encode([

          'error' => 'No Access Token'

        ]);

        exit;

      }

      /*var_dump(strtotime(self::getSetting('accessTokenExpiry')),

      self::getSetting('accessTokenExpiry'),

      time(),

      date("Y-m-d H:i:s", time()),

      (strtotime(self::getSetting('accessTokenExpiry')) - time()));

      exit;*/

      if ((strtotime(self::getSetting('accessTokenExpiry')) - time()) < 3600) {

        self::refreshToken();

      }

      switch ($wp->query_vars['f']) {

        case 'prezzos':

          self::fetchPrezzos();

          break;

      }

    }

  }



  private function fetchPrezzos() {



    $response = wp_remote_get('https://api.homeprezzo.com.au/v1/prezzos', [

      'headers' => [

        'Authorization' => 'Bearer ' . self::getSetting('accessToken'),

      ],

    ]);



    if ($response['response']['code'] === 200) {

      header('Content-Type: text/json');

      print $response['body'];

      exit;

    }



    else {

      header('Content-Type: text/json');

      print json_encode([

        //'error' => 'Error Fetching Prezzos'

        'error' => $response

      ]);

      exit;      

    }



  }



  private function refreshToken() {



    $response = wp_remote_post('https://api.homeprezzo.com.au/oauth/token', [

      'method' => 'POST',

      'body' => [

        'refresh_token' => self::getSetting('refreshToken'),

        'grant_type' => 'refresh_token',

        'client_id' => self::getSetting('client_id'),

        'client_secret' => self:: getSetting('client_secret'),

      ],

    ]);

    if ($response['response']['code'] === 200) {

      $data = json_decode($response['body']);

      self::setSetting('accessToken', $data->accessToken);

      self::setSetting('accessTokenExpiry', $data->accessTokenExpiresAt);

      self::setSetting('refreshToken', $data->refreshToken);

      self::setSetting('refreshTokenExpiry', $data->refreshTokenExpiresAt);      

    }



    else {

        header('Content-Type: text/json');

        print json_encode([

          //'error' => 'Token Refresh Failed'

          'error' => $response,

        ]);

        exit;      

    }



  }



  private function doRemoteAuth($query) {

    $response = wp_remote_post('https://api.homeprezzo.com.au/oauth/token', [

      'method' => 'POST',

      'body' => [

        'code' => $query['code'],

        'client_id' => self::getSetting('client_id'),

        'client_secret' => self::getSetting('client_secret'),

        'grant_type' => 'authorization_code',

      ],

    ]);

    if ($response['response']['code'] === 200) {

      $data = json_decode($response['body']);

      self::setSetting('accessToken', $data->accessToken);

      self::setSetting('accessTokenExpiry', $data->accessTokenExpiresAt);

      self::setSetting('refreshToken', $data->refreshToken);

      self::setSetting('refreshTokenExpiry', $data->refreshTokenExpiresAt);

      self::setSetting('username', $data->user->username);

      print '

        <html>

          <head></head>

          <body>

            <script>

              window.parent.location.reload();

            </script>

          </body>

        </html>

      ';

      exit;

    }

  }



  public function query_vars($qvars) {



    $qvars[] = 'homeprezzo-embed';

    $qvars[] = 'code';

    $qvars[] = 'f';

    return $qvars;



  }



  public function isAuthenticated() {

    

    if (

      self::getSetting('refreshToken') &&

      (

        self::getSetting('refreshTokenExpiry') &&

        strtotime(self::getSetting('refreshTokenExpiry')) > time()

      )

    ) {

      return true;

    }

    return false;

  }



  public function getUsername() {

    return $this->getSetting('username');

  }



  public function add_javascript() {

    add_action('admin_enqueue_scripts', array($this, 'enqueue_javascript_core'));

  }



  public function enqueue_javascript_core() {



    $data = [

      'settings' => [

        'client_id' => self::getSetting('client_id'),

        'icon' => plugin_dir_url(__FILE__) . 'assets/images/homeprezzo-icon-32.png',

      ]

    ];



    wp_enqueue_script('homeprezzo-embed', plugin_dir_url(__FILE__) . 'js/homeprezzo-embed.js',[

      'jquery',

      'jquery-ui-dialog',

      'wp-color-picker',

    ]);

    wp_localize_script('homeprezzo-embed', 'HomeprezzoEmbed', $data);

    wp_enqueue_style('wp-jquery-ui-dialog');

    wp_enqueue_style('wp-color-picker'); 



  }



  public function enqueue_qtags() {

    if (wp_script_is("quicktags")) {

          ?>

              <script type="text/javascript">



                  QTags.addButton( 

                      "homeprezzo_embed", 

                      "prezzo", 

                      homeprezzoEmbedQTagsCallback

                  );



                  function homeprezzoEmbedQTagsCallback()

                  {

                      $.fn.homeprezzoEmbed('qtags');

                  }

              </script>

          <?php

    }

  }



  public function add_options_page() {



    require_once('lib/RationalOptionPages.php');



    $pages = [

      self::prefix . 'settings' => [

        'parent_slug' => 'options-general.php',

        'page_title' => __('HomePrezzo Embed', 'text-domain'),

        'icon_url' => 'dashicons-chart-area',

      ]

    ];



    if (!(self::getSetting('client_id') && self::getSetting('client_secret'))) {

      $pages[self::prefix . 'settings']['sections']['client_authentication'] = [

        'id' => 'client_authentication',

        'title' => __('Client Authentication', 'text-domain'),

        'fields' => [

          'client_id' => [

            'title' => __('Client ID', 'text-domain'),

            'type' => 'text',

            'class' => 'client-id regular-text',

          ],

          'client_secret' => [

            'title' => __('Client Secret', 'text-domain'),

            'type' => 'password',

            'class' => 'client-secret regular-text',

          ],

        ],

      ];



      if (self::getSetting('client_id') && self::getSetting('client_secret')) {

        $pages[self::prefix . 'settings']['sections']['client_authentication']['text'] =

          '<p><a href="#" data-context="homeprezzo-embed-client-detail" data-alt-text="' .

          __('Click to hide your client details', 'text-domain') . '">' . 

          __('Click to edit your client details', 'text-domain') . '</a>';

      }

      else {

        $pages[self::prefix . 'settings']['sections']['client_authentication']['text'] =

          '<p>' . __('Please supply your client credentials below.  If you don\'t yet 

          have client credentials please contact us at ', 'text-domain') .

          '<a href="mailto:support@homeprezzo.com">support@homeprezzo.com</a>.';      

      }

    }



    if (self::getSetting('client_id') && self::getSetting('client_secret')) {



      $pages[self::prefix . 'settings']['sections']['user_authentication'] = [

        'title' => __('User Authentication', 'text-domain'),

      ];



      if (self::isAuthenticated()) {



        $pages[self::prefix . 'settings']['sections']['user_authentication']['text'] =

          "<p>" . 

          sprintf(

            __("You're connected to HomePrezzo as %s", 'text-domain'),

            self::getUsername()

          ) . 

          "</p>";



      }



      else {



        $pages[self::prefix . 'settings']['sections']['user_authentication']['text'] =

          "

            <p>" . __("Authorize the plugin to use a HomePrezzo user's data.", 'text-domain') . "</p>

            <p><button type=\"button\" data-context=\"homeprezzo-embed-connect\">" . __("Click to Connect", 'text-domain') .

            "</button></p><div data-context=\"homeprezzo-embed-connect-dialog\" title=\"Connect to HomePrezzo\">

            <iframe scrolling=\"no\" height=\"360\" width=\"100%\" src=\"https://app.homeprezzo.com.au/login-api?client_id=" . urlencode(self::getSetting('client_id')) . "&redirect=" . urlencode(self::getConfig('redirect')) . "&scope=" . urlencode(self::getConfig('scope')) . "\" />

            </div>

          ";



      }



    }



    $options = new RationalOptionPages($pages); 



  }



}



HomeprezzoEmbed::getInstance();