<?php

/**
 * Plugin Name: Elementor Page Builder
 * Plugin URI: https://wordpress.org/plugins/elementor/
 *
 * Compatibility Description: Ensures compatibility with Elementor.
 *
 * @Todo add manual sync to sync all elementor css file to GCS.
 *
 */

namespace wpCloud\StatelessMedia {

  if (!class_exists('wpCloud\StatelessMedia\Elementor')) {

    class Elementor extends ICompatibility {
      protected $id = 'elementor';
      protected $title = 'Elementor Page Builder';
      protected $constant = 'WP_STATELESS_COMPATIBILITY_ELEMENTOR';
      protected $description = 'Ensures compatibility with Elementor Page Builder. Sync css files generated by Elementor.';
      protected $plugin_file = 'elementor/elementor.php';
      protected $non_library_sync = true;

      /**
       * @param $sm
       */
      public function module_init($sm) {
        add_filter('set_url_scheme', array($this, 'sync_rewrite_url'), 10, 3);
        add_action('elementor/core/files/clear_cache', array($this, 'delete_elementor_files'));
        add_action('save_post', array($this, 'delete_css_files'), 10, 3);
        add_action('deleted_post', array($this, 'delete_css_files'));
        add_filter("elementor/settings/general/success_response_data", array($this, 'delete_global_css'), 10, 3);
        add_action('sm::pre::sync::nonMediaFiles', array($this, 'filter_css_file'), 10, 2);
      }

      /**
       * Sync local elementor files to GCS.
       * @param $url
       * @param $scheme
       * @param $orig_scheme
       * @return string
       */
      public function sync_rewrite_url($url, $scheme, $orig_scheme) {
        try {
          if (strpos($url, 'elementor/') !== false) {
            $wp_uploads_dir = wp_get_upload_dir();
            $name = str_replace($wp_uploads_dir['baseurl'] . '/', '', $url);
            if ($name != $url) {
              $absolutePath = $wp_uploads_dir['basedir'] . '/' . $name;
              $name = apply_filters('wp_stateless_file_name', $name, 0);
              do_action('sm:sync::syncFile', $name, $absolutePath);

              if (!in_array(ud_get_stateless_media()->get('sm.mode'), ['disabled', 'backup'])) {
                $url = ud_get_stateless_media()->get_gs_host() . '/' . $name;
              }
            }
          }
        } catch (\Exception $e) {
          // @todo maybe log the exception.
        }
        // We are in filter so need to return the passed value.
        return $url;
      }

      /**
       * To regenerate/delete files click Regenerate Files in
       * Elementor >> Tools >> General >> Regenerate CSS
       * All files will be deleted from GCS.
       * And will be copied to GCS again on next page view.
       */
      public function delete_elementor_files() {
        do_action('sm:sync::deleteFiles', 'elementor/');
      }

      /**
       * Delete GCS file on update/delete post.
       * @param $post_ID
       * @param null $post
       * @param null $update
       */
      public function delete_css_files($post_ID, $post = null, $update = null) {
        if ($update || current_action() === 'deleted_post') {
          $post_css = new \Elementor\Core\Files\CSS\Post($post_ID);

          //      elementor/               css/                           'post-' . $post_id . '.css'
          $name = $post_css::UPLOADS_DIR . $post_css::DEFAULT_FILES_DIR . $post_css->get_file_name();
          $name = apply_filters('wp_stateless_file_name', $name, 0);
          do_action('sm:sync::deleteFile', $name);
        }
      }

      /**
       * Delete elementor global css file when global style is updated on Elementor Editor.
       * @param $success_response_data
       * @param $id
       * @param $data
       * @return mixed
       */
      public function delete_global_css($success_response_data, $id, $data) {
        try {
          $post_css = new \Elementor\Core\Files\CSS\Global_CSS('global.css');
          //      elementor/               css/                           'global.css'
          $name = $post_css::UPLOADS_DIR . $post_css::DEFAULT_FILES_DIR . $post_css->get_file_name();
          $name = apply_filters('wp_stateless_file_name', $name, 0);
          do_action('sm:sync::deleteFile', $name);
        } catch (\Exception $e) {
          // @todo maybe log the exception.
        }
        // We are in filter so need to return the passed value.
        return $success_response_data;
      }

      /**
       * @param $name
       * @param $absolutePath
       */
      public function filter_css_file($name, $absolutePath) {
        if ($upload_data = wp_upload_dir() && file_exists($absolutePath)) {
          try {
            $content = file_get_contents($absolutePath);

            if (!empty($upload_data['baseurl']) && !empty($content)) {
              $baseurl = preg_replace('/https?:\/\//', '', $upload_data['baseurl']);
              $root_dir = trim(ud_get_stateless_media()->get('sm.root_dir'), '/ '); // Remove any forward slash and empty space.
              $root_dir = apply_filters("wp_stateless_handle_root_dir", $root_dir);
              $root_dir = !empty($root_dir) ? $root_dir . '/' : '';
              $image_host = ud_get_stateless_media()->get_gs_host() . $root_dir;
              $file_ext = ud_get_stateless_media()->replaceable_file_types();

              preg_match_all('/(https?:\/\/' . str_replace('/', '\/', $baseurl) . ')\/(.+?)(' . $file_ext . ')/i', $content, $matches);
              if (!empty($matches)) {
                foreach ($matches[0] as $key => $match) {
                  $id = attachment_url_to_postid($match);
                  if (!empty($id)) {
                    Utility::add_media(null, $id, true);
                  }
                }
              }

              $content = preg_replace('/(https?:\/\/' . str_replace('/', '\/', $baseurl) . ')\/(.+?)(' . $file_ext . ')/i', $image_host . '/$2$3', $content);
              file_put_contents($absolutePath, $content);
              preg_match('/post-(\d+).css/', $name, $match);

              if (!empty($match[1])) {
                $_elementor_css = get_post_meta($match[1], '_elementor_css', true);
                if (!empty($_elementor_css)) {
                  $_elementor_css['time'] = time();
                }
              }
            }
          } catch (\Exception $e) {
          }
        }
      }
    }
  }
}