<?php
/**
 * Plugin Name: BuddyPress
 * Plugin URI: https://wordpress.org/plugins/buddypress/
 *
 * Compatibility Description: Ensures compatibility with BuddyPress.
 *
 */

namespace wpCloud\StatelessMedia {

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

    class BuddyPress extends ICompatibility {
      protected $id = 'buddypress';
      protected $title = 'BuddyPress';
      protected $constant = 'WP_STATELESS_COMPATIBILITY_BUDDYPRESS';
      protected $description = 'Ensures compatibility with BuddyPress.';
      protected $plugin_file = [ 'buddypress/bp-loader.php' ];
      protected $sm_mode_not_supported = [ 'stateless' ];

      /**
       * @param $sm
       */
      public function module_init( $sm ) {
        add_action( 'xprofile_avatar_uploaded', array( $this, 'avatar_uploaded' ), 10, 3 );
        add_action( 'groups_avatar_uploaded', array( $this, 'avatar_uploaded' ), 10, 3 );
        add_filter( 'bp_core_fetch_avatar', array( $this, 'bp_core_fetch_avatar' ), 10, 3 );
        add_filter( 'bp_core_pre_delete_existing_avatar', array( $this, 'delete_existing_avatar' ), 10, 2 );
        add_filter( 'bp_attachments_pre_get_attachment', array( $this, 'bp_attachments_pre_get_attachment' ), 10, 2 );
      }

      /**
       * Sync avatar.
       * @param $item_id
       * @param $type
       * @param $r
       */
      public function avatar_uploaded( $item_id, $type, $r ) {
        $full_avatar = bp_core_fetch_avatar( array(
          'object'  => $r['object'],
          'item_id' => $r['item_id'],
          'html'    => false,
          'type'    => 'full',
        ) );
        $thumb_avatar = bp_core_fetch_avatar( array(
          'object'  => $r['object'],
          'item_id' => $r['item_id'],
          'html'    => false,
          'type'    => 'thumb',
        ) );

        $wp_uploads_dir = wp_get_upload_dir();

        $full_avatar_path = $wp_uploads_dir[ 'basedir' ] . '/' . apply_filters( 'wp_stateless_file_name', $full_avatar, false );
        $full_avatar = apply_filters( 'wp_stateless_file_name', $full_avatar, 0 );

        $thumb_avatar_path = $wp_uploads_dir[ 'basedir' ] . '/' . apply_filters( 'wp_stateless_file_name', $thumb_avatar, false );
        $thumb_avatar = apply_filters( 'wp_stateless_file_name', $thumb_avatar, 0 );

        do_action( 'sm:sync::syncFile', $full_avatar, $full_avatar_path, true, array( 'ephemeral' => false ) );
        do_action( 'sm:sync::syncFile', $thumb_avatar, $thumb_avatar_path, true, array( 'ephemeral' => false ) );
      }

      /**
       * Convert image url in image html to GCS URL.
       *
       * @param [type] $image_html html code for image.
       * @return void
       */
      public function bp_core_fetch_avatar( $image_html ) {
        try {
          preg_match( "/src=(?:'|\")(http.*?)(?:'|\")/", $image_html, $image_url );
          if( !empty( $image_url[ 1 ] ) ) {
            $gs_image_url = $this->bp_core_fetch_avatar_url( $image_url[ 1 ] );
            $image_html = str_replace( $image_url[ 1 ], $gs_image_url, $image_html );
          }
        } catch( \Throwable $th ) {
          //throw $th;
        }
        return $image_html;
      }

      /**
       * Sync then return GCS url.
       *
       * @param [type] $url image url.
       * @return void
       */
      public function bp_core_fetch_avatar_url( $url ) {
        $wp_uploads_dir = wp_get_upload_dir();
        $name = apply_filters( 'wp_stateless_file_name', $url, 0 );
        $full_avatar_path = $wp_uploads_dir[ 'basedir' ] . '/' . $name;


        $root_dir = ud_get_stateless_media()->get( 'sm.root_dir' );
        $root_dir = apply_filters("wp_stateless_handle_root_dir", $root_dir);
        $root_dir = trim( $root_dir, '/ ' ); // Remove any forward slash and empty space.
        // Making sure that we only modify url for uploads dir.
        // @todo support photo in plugins directory.

        if( strpos( $name, plugins_url() ) === 0 ) {
          $name = str_replace( plugins_url() . '/', '', $name );
          $name = apply_filters( 'wp_stateless_file_name', $name, 0 );
          $full_avatar_path = WP_PLUGIN_DIR . '/' . $name;
        }

        if( strpos( $name, "$root_dir/http" ) !== 0 && strpos( $name, "http" ) !== 0 && $root_dir !== $name ) {
          do_action( 'sm:sync::syncFile', $name, $full_avatar_path, false, array( 'ephemeral' => false ) );
          $url = ud_get_stateless_media()->get_gs_host() . '/' . $name;
        }
        return $url;
      }

      /**
       * Deleting avatar from GCS.
       * @param $return
       * @param $args
       * @return bool
       */
      public function delete_existing_avatar( $return, $args ) {
        if( empty( $args[ 'object' ] ) && empty( $args[ 'item_id' ] ) ) {
          return $return;
        }

        $full_avatar = bp_core_fetch_avatar( array( 'object' => $args[ 'object' ], 'item_id' => $args[ 'item_id' ], 'html' => false, 'type' => 'full', ) );
        $thumb_avatar = bp_core_fetch_avatar( array( 'object' => $args[ 'object' ], 'item_id' => $args[ 'item_id' ], 'html' => false, 'type' => 'thumb', ) );

        do_action( 'sm:sync::deleteFile', apply_filters( 'wp_stateless_file_name', $full_avatar, 0 ) );
        do_action( 'sm:sync::deleteFile', apply_filters( 'wp_stateless_file_name', $thumb_avatar, 0 ) );

        if( ud_get_stateless_media()->get( 'sm.mode' ) === 'ephemeral' ) {
          $return = false;
        }

        return $return;
      }

      /**
       * Sync and return GCS url for group images.
       *
       * Used as CSS background-image.
       *
       * @param [type] $return
       * @param [type] $r
       * @return void
       */
      public function bp_attachments_pre_get_attachment( $return, $r ) {
        // Return if this is a recursive call.
        if( !empty( $r[ 'recursive' ] ) ) {
          return $return;
        }

        try {
          $debug_backtrace = \debug_backtrace( false );

          // Making sure we only return GCS link if the type is url.
          if( !empty( $debug_backtrace[ 3 ][ 'args' ][ 0 ] ) && $debug_backtrace[ 3 ][ 'args' ][ 0 ] == 'url' ) {
            $r[ 'recursive' ] = true;

            $url = bp_attachments_get_attachment( 'url', $r );
            $name = apply_filters( 'wp_stateless_file_name', $url, 0 );

            $root_dir = ud_get_stateless_media()->get( 'sm.root_dir' );
            $root_dir = apply_filters("wp_stateless_handle_root_dir", $root_dir);
            $root_dir = trim( $root_dir, '/ ' ); // Remove any forward slash and empty space.

            if( !empty( $name ) && $root_dir . "/" != $name ) {
              $full_path = bp_attachments_get_attachment( false, $r );
              do_action( 'sm:sync::syncFile', $name, $full_path, false, array( 'ephemeral' => false ) );
              $return = ud_get_stateless_media()->get_gs_host() . '/' . $name;
            }

          }
        } catch( \Throwable $th ) {
          //throw $th;
        }
        return $return;
      }

    }

  }

}