class-siteorigin-widgets-bundle.php

<?php

namespace SLCA\SiteOriginWidgetsBundle;

use wpCloud\StatelessMedia\Compatibility;
use wpCloud\StatelessMedia\Helper;

class SiteOriginWidgetsBundle extends Compatibility {
  const STORAGE_PATH = 'siteorigin-widgets/';

  protected $id = 'so-widget-css';
  protected $title = 'SiteOrigin Widget Bundle';
  protected $constant = 'WP_STATELESS_COMPATIBILITY_SOWB';
  protected $description = 'Enabled support for CSS files generated by SiteOrigin Widgets Bundle.';
  protected $plugin_file = 'so-widgets-bundle/so-widgets-bundle.php';
  protected $non_library_sync = true;
  protected $filesystem = null;

  /**
   * @param $sm
   */
  public function module_init($sm) {
    if ( !class_exists('\WP_Filesystem_Direct') ) {
      require_once(ABSPATH . 'wp-admin/includes/class-wp-filesystem-base.php');
      require_once(ABSPATH . 'wp-admin/includes/class-wp-filesystem-direct.php');
    }

    $this->filesystem = new \WP_Filesystem_Direct( false );

    add_filter('set_url_scheme', array($this, 'set_url_scheme'), 20);
    add_filter('pre_set_transient_sow:cleared', array($this, 'clear_file_cache'), 20, 3);
    add_filter('siteorigin_widgets_stylesheet_cleared', array($this, 'widgets_stylesheet_cleared'), 20);
    add_filter('stateless_skip_cache_busting', array($this, 'skip_cache_busting'), 10, 2);
    add_filter('sm:sync::syncArgs', array($this, 'sync_args'), 10, 4);

    add_action('siteorigin_widgets_stylesheet_added', array($this, 'widgets_stylesheet_added'), 10, 2);
    add_action('siteorigin_widgets_stylesheet_deleted', array($this, 'delete_file'), 10, 1);

    do_action('sm:sync::register_dir', '/' . self::STORAGE_PATH);
  }

  /**
   * In Stateless mode move file to proper location.
   */
  protected function possibly_move_file($name, $destination) {
    if ( !ud_get_stateless_media()->is_mode('stateless') ) {
      return;
    }

    $upload_dir = wp_upload_dir();
    $source = $upload_dir['basedir'] . '/' . $name;

    $this->filesystem->move( $source, $destination, true );
  }

  /**
   * Change URL for loading CSS files in Stateless Mode.
   * 
   * @param $url
   * @return string
   */
  public function set_url_scheme($url) {
    if ( ud_get_stateless_media()->is_mode( ['disabled', 'backup'] ) ) {
      return $url;
    }

    $position = strpos($url, self::STORAGE_PATH);

    if ($position !== false) {
      $name = substr($url, $position);
      $name = apply_filters('wp_stateless_addon_files_root', '') . '/' . $name;
      $url = str_replace( ud_get_stateless_media()->get_gs_path(), ud_get_stateless_media()->get_gs_host(), $name );

      if ( ud_get_stateless_media()->is_mode('stateless') ) {
        $url = str_replace( ud_get_stateless_media()->get_gs_path(), ud_get_stateless_media()->get_gs_host(), $name );
      } else {
        $upload_dir = wp_upload_dir();
        $url = str_replace( $upload_dir['basedir'], ud_get_stateless_media()->get_gs_host(), $name );
      }
    }

    return $url;
  }

  /**
   * Sync new CSS file to GCS
   * 
   * @param $url
   * @param $instance
   * @return string
   */
  public function widgets_stylesheet_added($name, $instance) {
    $name = self::STORAGE_PATH . $name;
    $absolutePath = apply_filters('wp_stateless_addon_files_root', ''); 
    $absolutePath .= '/' . $name;

    $name = apply_filters('wp_stateless_file_name', $name, 0);

    $this->possibly_move_file($name, $absolutePath);

    do_action('sm:sync::syncFile', $name, $absolutePath);
  }

  /**
   * Clear all SO CSS files from GCS after expired. 7 days
   * @param $value
   * @param $expiration
   * @param $transient
   * @return mixed
   */
  public function clear_file_cache($value, $expiration, $transient) {
    do_action('sm:sync::deleteFiles', self::STORAGE_PATH);
    return $value;
  }

  /**
   * Clear all SO CSS files from GCS after expired. 7 days
   */
  public function widgets_stylesheet_cleared() {
    do_action('sm:sync::deleteFiles', self::STORAGE_PATH);
  }

  /**
   * Remove single file from GCS. File can be without extension.
   * 
   * @param $css_name
   */
  public function delete_file($css_name) {
    $extension = pathinfo($css_name, PATHINFO_EXTENSION);

    if ( $extension !== 'css' ) {
      $css_name .= '.css';
    }

    $file = self::STORAGE_PATH . $css_name;

    do_action('sm:sync::deleteFile', $file);
  }

  /**
   * Skip cache busting while activating/deactivating SO widget.
   * 
   * @param $return
   * @param $filename
   * @return mixed
   */
  public function skip_cache_busting($return, $filename) {
    $back_trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);

    foreach ($back_trace as $trace) {
      if ( isset($trace['file']) && strpos($trace['file'], 'so-widgets-bundle') !== false ) {
        if ( isset($trace['function']) && $trace['function'] === 'sanitize_file_name' ) {
          return $filename;
        }
      }
    }

    return $return;
  }

  /**
   * Update args when uploading/syncing file to GCS.
   * 
   * @param array $args
   * @param string $name
   * @param string $file
   * @param bool $force
   * 
   * @return array
   */
  public function sync_args($args, $name, $file, $force) {
    if ( strpos($name, self::STORAGE_PATH) !== 0 ) {
      return $args;
    }

    if ( ud_get_stateless_media()->is_mode('stateless') ) {
      $args['name_with_root'] = false;
    }

    $args['source'] = 'SiteOrigin Widgets Bundle';
    $args['source_version'] = defined('SOW_BUNDLE_VERSION') ? SOW_BUNDLE_VERSION : '';

    return $args;
  }
}