bbPress

final class bbPress {

    /** Magic *****************************************************************/

    /**
     * bbPress uses many variables, several of which can be filtered to
     * customize the way it operates. Most of these variables are stored in a
     * private array that gets updated with the help of PHP magic methods.
     *
     * This is a precautionary measure, to avoid potential errors produced by
     * unanticipated direct manipulation of bbPress's run-time data.
     *
     * @see bbPress::setup_globals()
     * @var array
     */
    private $data;

    /** Not Magic *************************************************************/

    /**
     * @var mixed False when not logged in; WP_User object when logged in
     */
    public $current_user = false;

    /**
     * @var obj Add-ons append to this (Akismet, BuddyBoss, etc...)
     */
    public $extend;

    /**
     * @var array Topic views
     */
    public $views        = array();

    /**
     * @var array Overloads get_option()
     */
    public $options      = array();

    /**
     * @var array Overloads get_user_meta()
     */
    public $user_options = array();

    /** Singleton *************************************************************/

    /**
     * Main bbPress Instance
     *
     * bbPress is fun
     * Please load it only one time
     * For this, we thank you
     *
     * Insures that only one instance of bbPress exists in memory at any one
     * time. Also prevents needing to define globals all over the place.
     *
     * @since bbPress (r3757)
     * @staticvar object $instance
     * @uses bbPress::setup_globals() Setup the globals needed
     * @uses bbPress::includes() Include the required files
     * @uses bbPress::setup_actions() Setup the hooks and actions
     * @see bbpress()
     * @return The one true bbPress
     */
    public static function instance() {

        // Store the instance locally to avoid private static replication
        static $instance = null;

        // Only run these methods if they haven't been ran previously
        if ( null === $instance ) {
            $instance = new bbPress;
            $instance->setup_globals();
            $instance->includes();
            $instance->setup_actions();
        }

        // Always return the instance
        return $instance;
    }

    /** Magic Methods *********************************************************/

    /**
     * A dummy constructor to prevent Forums from being loaded more than once.
     *
     * @since bbPress (r2464)
     * @see bbPress::instance()
     * @see bbpress();
     */
    private function __construct() { /* Do nothing here */ }

    /**
     * A dummy magic method to prevent Forums from being cloned
     *
     * @since bbPress (r2464)
     */
    public function __clone() { _doing_it_wrong( __FUNCTION__, __( 'Cheatin\' huh?', 'buddyboss' ), '2.1' ); }

    /**
     * A dummy magic method to prevent Forums from being unserialized
     *
     * @since bbPress (r2464)
     */
    public function __wakeup() { _doing_it_wrong( __FUNCTION__, __( 'Cheatin\' huh?', 'buddyboss' ), '2.1' ); }

    /**
     * Magic method for checking the existence of a certain custom field
     *
     * @since bbPress (r3951)
     */
    public function __isset( $key ) { return isset( $this->data[$key] ); }

    /**
     * Magic method for getting Forums variables
     *
     * @since bbPress (r3951)
     */
    public function __get( $key ) { return isset( $this->data[$key] ) ? $this->data[$key] : null; }

    /**
     * Magic method for setting Forums variables
     *
     * @since bbPress (r3951)
     */
    public function __set( $key, $value ) { $this->data[$key] = $value; }

    /**
     * Magic method for unsetting Forums variables
     *
     * @since bbPress (r4628)
     */
    public function __unset( $key ) { if ( isset( $this->data[$key] ) ) unset( $this->data[$key] ); }

    /**
     * Magic method to prevent notices and errors from invalid method calls
     *
     * @since bbPress (r4252)
     */
    public function __call( $name = '', $args = array() ) { unset( $name, $args ); return null; }

    /** Private Methods *******************************************************/

    /**
     * Set some smart defaults to class variables. Allow some of them to be
     * filtered to allow for early overriding.
     *
     * @since bbPress (r2626)
     * @access private
     * @uses plugin_dir_path() To generate Forums plugin path
     * @uses plugin_dir_url() To generate Forums plugin url
     * @uses apply_filters() Calls various filters
     */
    private function setup_globals() {

        /** Versions **********************************************************/

        $this->version    = '2.5.14-6684';
        $this->db_version = '250';

        /** Paths *************************************************************/

        // Setup some base path and URL information
        $this->file       = __FILE__;
		$this->basename   = apply_filters( 'bbp_plugin_basename', plugin_basename( buddypress()->file ) );
		$this->plugin_dir = apply_filters( 'bbp_plugin_dir_path', buddypress()->plugin_dir . 'bp-forums/' );
		$this->plugin_url = apply_filters( 'bbp_plugin_dir_url',  buddypress()->plugin_url . 'bp-forums/' );

        // Includes
        $this->includes_dir = apply_filters( 'bbp_includes_dir', trailingslashit( $this->plugin_dir ) );
        $this->includes_url = apply_filters( 'bbp_includes_url', trailingslashit( $this->plugin_url ) );

        // Templates
        $this->themes_dir   = apply_filters( 'bbp_themes_dir',   trailingslashit( $this->plugin_dir . 'templates' ) );
        $this->themes_url   = apply_filters( 'bbp_themes_url',   trailingslashit( $this->plugin_url . 'templates' ) );

        /** Identifiers *******************************************************/

        // Post type identifiers
        $this->forum_post_type   = apply_filters( 'bbp_forum_post_type',  'forum'     );
        $this->topic_post_type   = apply_filters( 'bbp_topic_post_type',  'topic'     );
        $this->reply_post_type   = apply_filters( 'bbp_reply_post_type',  'reply'     );
        $this->topic_tag_tax_id  = apply_filters( 'bbp_topic_tag_tax_id', 'topic-tag' );

        // Status identifiers
        $this->spam_status_id    = apply_filters( 'bbp_spam_post_status',    'spam'    );
        $this->closed_status_id  = apply_filters( 'bbp_closed_post_status',  'closed'  );
        $this->orphan_status_id  = apply_filters( 'bbp_orphan_post_status',  'orphan'  );
        $this->public_status_id  = apply_filters( 'bbp_public_post_status',  'publish' );
        $this->pending_status_id = apply_filters( 'bbp_pending_post_status', 'pending' );
        $this->private_status_id = apply_filters( 'bbp_private_post_status', 'private' );
        $this->hidden_status_id  = apply_filters( 'bbp_hidden_post_status',  'hidden'  );
        $this->trash_status_id   = apply_filters( 'bbp_trash_post_status',   'trash'   );

        // Other identifiers
        $this->user_id           = apply_filters( 'bbp_user_id',   'bbp_user'   );
        $this->tops_id           = apply_filters( 'bbp_tops_id',   'bbp_tops'   );
        $this->reps_id           = apply_filters( 'bbp_reps_id',   'bbp_reps'   );
        $this->favs_id           = apply_filters( 'bbp_favs_id',   'bbp_favs'   );
        $this->subs_id           = apply_filters( 'bbp_subs_id',   'bbp_subs'   );
        $this->view_id           = apply_filters( 'bbp_view_id',   'bbp_view'   );
        $this->edit_id           = apply_filters( 'bbp_edit_id',   'edit'       );
        $this->paged_id          = apply_filters( 'bbp_paged_id',  'paged'      );
        $this->search_id         = apply_filters( 'bbp_search_id', 'bbp_search' );

        /** Queries ***********************************************************/

        $this->current_view_id      = 0; // Current view id
        $this->current_forum_id     = 0; // Current forum id
        $this->current_topic_id     = 0; // Current topic id
        $this->current_reply_id     = 0; // Current reply id
        $this->current_topic_tag_id = 0; // Current topic tag id

        $this->forum_query    = new WP_Query(); // Main forum query
        $this->topic_query    = new WP_Query(); // Main topic query
        $this->reply_query    = new WP_Query(); // Main reply query
        $this->search_query   = new WP_Query(); // Main search query

        /** Theme Compat ******************************************************/

        $this->theme_compat   = new stdClass(); // Base theme compatibility class
        $this->filters        = new stdClass(); // Used when adding/removing filters

        /** Users *************************************************************/

        $this->current_user   = new WP_User(); // Currently logged in user
        $this->displayed_user = new WP_User(); // Currently displayed user

        /** Misc **************************************************************/

        $this->domain         = 'bbpress';      // Unique identifier for retrieving translated strings
        $this->extend         = new stdClass(); // Plugins add data here
        $this->errors         = new WP_Error(); // Feedback
        $this->tab_index      = apply_filters( 'bbp_default_tab_index', 100 );
    }

    /**
     * Include required files
     *
     * @since bbPress (r2626)
     * @access private
     * @uses is_admin() If in WordPress admin, load additional file
     */
    private function includes() {

        /** Core **************************************************************/

        require( $this->includes_dir . 'core/sub-actions.php'        );
        require( $this->includes_dir . 'core/functions.php'          );
        require( $this->includes_dir . 'core/cache.php'              );
        require( $this->includes_dir . 'core/options.php'            );
        require( $this->includes_dir . 'core/capabilities.php'       );
        require( $this->includes_dir . 'core/update.php'             );
        require( $this->includes_dir . 'core/template-functions.php' );
        require( $this->includes_dir . 'core/template-loader.php'    );
        require( $this->includes_dir . 'core/theme-compat.php'       );

        /** Components ********************************************************/

        // Common
        require( $this->includes_dir . 'common/ajax.php'          );
        require( $this->includes_dir . 'common/classes.php'       );
        require( $this->includes_dir . 'common/functions.php'     );
        require( $this->includes_dir . 'common/formatting.php'    );
        require( $this->includes_dir . 'common/locale.php'        );
        require( $this->includes_dir . 'common/template.php'      );
        require( $this->includes_dir . 'common/widgets.php'       );
        require( $this->includes_dir . 'common/shortcodes.php'    );

        // Forums
        require( $this->includes_dir . 'forums/capabilities.php'  );
        require( $this->includes_dir . 'forums/functions.php'     );
        require( $this->includes_dir . 'forums/template.php'      );

        // Topics
        require( $this->includes_dir . 'topics/capabilities.php'  );
        require( $this->includes_dir . 'topics/functions.php'     );
        require( $this->includes_dir . 'topics/template.php'      );

        // Replies
        require( $this->includes_dir . 'replies/capabilities.php' );
        require( $this->includes_dir . 'replies/functions.php'    );
        require( $this->includes_dir . 'replies/template.php'     );

        // Search
        require( $this->includes_dir . 'search/functions.php'     );
        require( $this->includes_dir . 'search/template.php'      );

        // Users
        require( $this->includes_dir . 'users/capabilities.php'   );
        require( $this->includes_dir . 'users/functions.php'      );
        require( $this->includes_dir . 'users/template.php'       );
        require( $this->includes_dir . 'users/options.php'        );

        /** Hooks *************************************************************/

        require( $this->includes_dir . 'core/extend.php'  );
        require( $this->includes_dir . 'core/actions.php' );
        require( $this->includes_dir . 'core/filters.php' );

        /** Admin *************************************************************/

        // Quick admin check and load if needed
        if ( is_admin() ) {
            require( $this->includes_dir . 'admin/admin.php'   );
            require( $this->includes_dir . 'admin/actions.php' );
        }
    }

    /**
     * Setup the default hooks and actions
     *
     * @since bbPress (r2644)
     * @access private
     * @uses add_action() To add various actions
     */
    private function setup_actions() {

        // Add actions to plugin activation and deactivation hooks
        add_action( 'activate_'   . $this->basename, 'bbp_activation'   );
        add_action( 'deactivate_' . $this->basename, 'bbp_deactivation' );

        // If Forums is being deactivated, do not add any actions
        if ( bbp_is_deactivation( $this->basename ) )
            return;

        // Array of Forums core actions
        $actions = array(
            'setup_theme',              // Setup the default theme compat
            'setup_current_user',       // Setup currently logged in user
            'register_post_types',      // Register post types (forum|topic|reply)
            'register_post_statuses',   // Register post statuses (closed|spam|orphan|hidden)
            'register_taxonomies',      // Register taxonomies (topic-tag)
            'register_shortcodes',      // Register shortcodes (bbp-login)
            'register_views',           // Register the views (no-replies)
            'register_theme_packages',  // Register bundled theme packages (bbp-theme-compat/bbp-themes)
            'add_rewrite_tags',         // Add rewrite tags (view|user|edit|search)
            'add_rewrite_rules',        // Generate rewrite rules (view|edit|paged|search)
            'add_permastructs'          // Add permalink structures (view|user|search)
        );

        // Add the actions
        foreach ( $actions as $class_action )
            add_action( 'bbp_' . $class_action, array( $this, $class_action ), 5 );

        // All Forums actions are setup (includes bbp-core-hooks.php)
        do_action_ref_array( 'bbp_after_setup_actions', array( &$this ) );
    }

    /** Public Methods ********************************************************/

    /**
     * Register bundled theme packages
     *
     * Note that since we currently have complete control over bbp-themes and
     * the bbp-theme-compat folders, it's fine to hardcode these here. If at a
     * later date we need to automate this, and API will need to be built.
     *
     * @since bbPress (r3829)
     */
    public function register_theme_packages() {

        // Register the default theme compatibility package
        bbp_register_theme_package( array(
            'id'      => 'default',
            'name'    => __( 'Forums Default', 'buddyboss' ),
            'version' => bbp_get_version(),
            'dir'     => trailingslashit( $this->themes_dir . 'default' ),
            'url'     => trailingslashit( $this->themes_url . 'default' )
        ) );

        // Register the basic theme stack. This is really dope.
        bbp_register_template_stack( 'get_stylesheet_directory', 10 );
        bbp_register_template_stack( 'get_template_directory',   12 );
        bbp_register_template_stack( 'bbp_get_theme_compat_dir', 14 );
    }

    /**
     * Setup the default Forums theme compatibility location.
     *
     * @since bbPress (r3778)
     */
    public function setup_theme() {

        // Bail if something already has this under control
        if ( ! empty( $this->theme_compat->theme ) )
            return;

        // Setup the theme package to use for compatibility
        bbp_setup_theme_compat( bbp_get_theme_package_id() );
    }

    /**
     * Setup the post types for forums, topics and replies
     *
     * @since bbPress (r2597)
     * @uses register_post_type() To register the post types
     * @uses apply_filters() Calls various filters to modify the arguments
     *                        sent to register_post_type()
     */
    public static function register_post_types() {

        /** Forums ************************************************************/

        // Register Forum content type
        register_post_type(
            bbp_get_forum_post_type(),
            apply_filters( 'bbp_register_forum_post_type', array(
                'labels'              => bbp_get_forum_post_type_labels(),
                'rewrite'             => bbp_get_forum_post_type_rewrite(),
                'supports'            => bbp_get_forum_post_type_supports(),
                'description'         => __( 'Forums', 'buddyboss' ),
                'capabilities'        => bbp_get_forum_caps(),
                'capability_type'     => array( 'forum', 'forums' ),
                'menu_position'       => 555555,
                'has_archive'         => bbp_get_root_slug(),
                'exclude_from_search' => true,
                'show_in_nav_menus'   => true,
                'public'              => true,
                'show_ui'             => current_user_can( 'bbp_forums_admin' ),
                'can_export'          => true,
                'hierarchical'        => true,
                'query_var'           => true,
                'menu_icon'           => '',
                'show_in_menu'        => false,
            ) )
        );

        add_post_type_support( bbp_get_forum_post_type(), 'thumbnail' );

        /** Topics ************************************************************/

        // Register Topic content type
        register_post_type(
            bbp_get_topic_post_type(),
            apply_filters( 'bbp_register_topic_post_type', array(
                'labels'              => bbp_get_topic_post_type_labels(),
                'rewrite'             => bbp_get_topic_post_type_rewrite(),
                'supports'            => bbp_get_topic_post_type_supports(),
                'description'         => __( 'Forum Discussions', 'buddyboss' ),
                'capabilities'        => bbp_get_topic_caps(),
                'capability_type'     => array( 'topic', 'topics' ),
                'menu_position'       => 555555,
                'has_archive'         => ( 'forums' === bbp_show_on_root() ) ? bbp_get_topic_archive_slug() : false,
                'exclude_from_search' => true,
                'show_in_nav_menus'   => false,
                'public'              => true,
                'show_ui'             => current_user_can( 'bbp_topics_admin' ),
                'can_export'          => true,
                'hierarchical'        => false,
                'query_var'           => true,
                'menu_icon'           => '',
                'show_in_menu'        => false,
            )
        ) );

        /** Replies ***********************************************************/

        // Register reply content type
        register_post_type(
            bbp_get_reply_post_type(),
            apply_filters( 'bbp_register_reply_post_type', array(
                'labels'              => bbp_get_reply_post_type_labels(),
                'rewrite'             => bbp_get_reply_post_type_rewrite(),
                'supports'            => bbp_get_reply_post_type_supports(),
                'description'         => __( 'Forum Replies', 'buddyboss' ),
                'capabilities'        => bbp_get_reply_caps(),
                'capability_type'     => array( 'reply', 'replies' ),
                'menu_position'       => 555555,
                'exclude_from_search' => true,
                'has_archive'         => false,
                'show_in_nav_menus'   => false,
                'public'              => true,
                'show_ui'             => current_user_can( 'bbp_replies_admin' ),
                'can_export'          => true,
                'hierarchical'        => false,
                'query_var'           => true,
                'menu_icon'           => '',
                'show_in_menu'        => false,
            ) )
        );
    }

    /**
     * Register the post statuses used by Forums
     *
     * We do some manipulation of the 'trash' status so trashed topics and
     * replies can be viewed from within the theme.
     *
     * @since bbPress (r2727)
     * @uses register_post_status() To register post statuses
     * @uses $wp_post_statuses To modify trash and private statuses
     * @uses current_user_can() To check if the current user is capable &
     *                           modify $wp_post_statuses accordingly
     */
    public static function register_post_statuses() {

        // Closed @todo clean up translation
        register_post_status(
            bbp_get_closed_status_id(),
            apply_filters( 'bbp_register_closed_post_status', array(
                'label'             => __( 'Closed', 'buddyboss' ),
                'label_count'       => _n_noop( 'Closed <span class="count">(%s)</span>', 'Closed <span class="count">(%s)</span>', 'buddyboss' ),
                'public'            => true,
                'show_in_admin_all' => true
            ) )
        );

        // Spam @todo clean up translation
        register_post_status(
            bbp_get_spam_status_id(),
            apply_filters( 'bbp_register_spam_post_status', array(
                'label'                     => __( 'Spam', 'buddyboss' ),
                'label_count'               => _n_noop( 'Spam <span class="count">(%s)</span>', 'Spam <span class="count">(%s)</span>', 'buddyboss' ),
                'protected'                 => true,
                'exclude_from_search'       => true,
                'show_in_admin_status_list' => true,
                'show_in_admin_all_list'    => false
            ) )
         );

        // Orphan
        register_post_status(
            bbp_get_orphan_status_id(),
            apply_filters( 'bbp_register_orphan_post_status', array(
                'label'                     => __( 'Orphan', 'buddyboss' ),
                'label_count'               => _n_noop( 'Orphan <span class="count">(%s)</span>', 'Orphans <span class="count">(%s)</span>', 'buddyboss' ),
                'protected'                 => true,
                'exclude_from_search'       => true,
                'show_in_admin_status_list' => true,
                'show_in_admin_all_list'    => false
            ) )
        );

        // Hidden
        register_post_status(
            bbp_get_hidden_status_id(),
            apply_filters( 'bbp_register_hidden_post_status', array(
                'label'                     => __( 'Hidden', 'buddyboss' ),
                'label_count'               => _n_noop( 'Hidden <span class="count">(%s)</span>', 'Hidden <span class="count">(%s)</span>', 'buddyboss' ),
                'private'                   => true,
                'exclude_from_search'       => true,
                'show_in_admin_status_list' => true,
                'show_in_admin_all_list'    => true
            ) )
        );

        /**
         * Trash fix
         *
         * We need to remove the internal arg and change that to
         * protected so that the users with 'view_trash' cap can view
         * single trashed topics/replies in the front-end as wp_query
         * doesn't allow any hack for the trashed topics to be viewed.
         */
        global $wp_post_statuses;

        if ( !empty( $wp_post_statuses['trash'] ) ) {

            // User can view trash so set internal to false
            if ( current_user_can( 'view_trash' ) ) {
                $wp_post_statuses['trash']->internal  = false;
                $wp_post_statuses['trash']->protected = true;

            // User cannot view trash so set internal to true
            } else {
                $wp_post_statuses['trash']->internal = true;
            }
        }
    }

    /**
     * Register the topic tag taxonomy
     *
     * @since bbPress (r2464)
     * @uses register_taxonomy() To register the taxonomy
     */
    public static function register_taxonomies() {

        // Register the topic-tag taxonomy
        register_taxonomy(
            bbp_get_topic_tag_tax_id(),
            bbp_get_topic_post_type(),
            apply_filters( 'bbp_register_topic_taxonomy', array(
                'labels'                => bbp_get_topic_tag_tax_labels(),
                'rewrite'               => bbp_get_topic_tag_tax_rewrite(),
                'capabilities'          => bbp_get_topic_tag_caps(),
                'update_count_callback' => '_update_post_term_count',
                'query_var'             => true,
                'show_tagcloud'         => true,
                'hierarchical'          => false,
                'show_in_nav_menus'     => false,
                'public'                => true,
                'show_ui'               => bbp_allow_topic_tags() && current_user_can( 'bbp_topic_tags_admin' ),
                'show_in_menu'          => false,
            )
        ) );
    }

    /**
     * Register the Forums views
     *
     * @since bbPress (r2789)
     * @uses bbp_register_view() To register the views
     */
    public static function register_views() {

        // Popular discussions
        bbp_register_view(
            'popular',
            __( 'Most popular discussions', 'buddyboss' ),
            apply_filters( 'bbp_register_view_popular', array(
                'meta_key'      => '_bbp_reply_count',
                'max_num_pages' => 1,
                'orderby'       => 'meta_value_num',
                'show_stickies' => false
            )
        ) );

        // Discussions with no replies
        bbp_register_view(
            'no-replies',
            __( 'Discussions with no replies', 'buddyboss' ),
            apply_filters( 'bbp_register_view_no_replies', array(
                'meta_key'      => '_bbp_reply_count',
                'meta_value'    => 1,
                'meta_compare'  => '<',
                'orderby'       => '',
                'show_stickies' => false
            )
        ) );
    }

    /**
     * Register the Forums shortcodes
     *
     * @since bbPress (r3031)
     *
     * @uses BBP_Shortcodes
     */
    public function register_shortcodes() {
        $this->shortcodes = new BBP_Shortcodes();
    }

    /**
     * Setup the currently logged-in user
     *
     * Do not to call this prematurely, I.E. before the 'init' action has
     * started. This function is naturally hooked into 'init' to ensure proper
     * execution. get_currentuserinfo() is used to check for XMLRPC_REQUEST to
     * avoid xmlrpc errors.
     *
     * @since bbPress (r2697)
     * @uses wp_get_current_user()
     */
    public function setup_current_user() {
        $this->current_user = wp_get_current_user();
    }

    /** Custom Rewrite Rules **************************************************/

    /**
     * Add the Forums-specific rewrite tags
     *
     * @since bbPress (r2753)
     * @uses add_rewrite_tag() To add the rewrite tags
     */
    public static function add_rewrite_tags() {
        add_rewrite_tag( '%' . bbp_get_view_rewrite_id()               . '%', '([^/]+)'   ); // View Page tag
        add_rewrite_tag( '%' . bbp_get_edit_rewrite_id()               . '%', '([1]{1,})' ); // Edit Page tag
        add_rewrite_tag( '%' . bbp_get_search_rewrite_id()             . '%', '([^/]+)'   ); // Search Results tag
        add_rewrite_tag( '%' . bbp_get_user_rewrite_id()               . '%', '([^/]+)'   ); // User Profile tag
        add_rewrite_tag( '%' . bbp_get_user_favorites_rewrite_id()     . '%', '([1]{1,})' ); // User Favorites tag
        add_rewrite_tag( '%' . bbp_get_user_subscriptions_rewrite_id() . '%', '([1]{1,})' ); // User Subscriptions tag
        add_rewrite_tag( '%' . bbp_get_user_topics_rewrite_id()        . '%', '([1]{1,})' ); // User Topics Tag
        add_rewrite_tag( '%' . bbp_get_user_replies_rewrite_id()       . '%', '([1]{1,})' ); // User Replies Tag
    }

    /**
     * Add Forums-specific rewrite rules for uri's that are not
     * setup for us by way of custom post types or taxonomies. This includes:
     * - Front-end editing
     * - Topic views
     * - User profiles
     *
     * @since bbPress (r2688)
     * @todo Extract into an API
     */
    public static function add_rewrite_rules() {

        /** Setup *************************************************************/

        // Add rules to top or bottom?
        $priority           = 'top';

        // Single Slugs
        $forum_slug         = bbp_get_forum_slug();
        $topic_slug         = bbp_get_topic_slug();
        $reply_slug         = bbp_get_reply_slug();
        $ttag_slug          = bbp_get_topic_tag_tax_slug();

        // Archive Slugs
        $view_slug          = bbp_get_view_slug();
        $search_slug        = bbp_get_search_slug();
        $topic_archive_slug = bbp_get_topic_archive_slug();
        $reply_archive_slug = bbp_get_reply_archive_slug();

        // Tertiary Slugs
        $feed_slug          = 'feed';
        $edit_slug          = 'edit';
        $paged_slug         = bbp_get_paged_slug();

        // Unique rewrite ID's
        $feed_id            = 'feed';
        $edit_id            = bbp_get_edit_rewrite_id();
        $view_id            = bbp_get_view_rewrite_id();
        $paged_id           = bbp_get_paged_rewrite_id();
        $search_id          = bbp_get_search_rewrite_id();
        $user_id            = bbp_get_user_rewrite_id();
        $user_favs_id       = bbp_get_user_favorites_rewrite_id();
        $user_subs_id       = bbp_get_user_subscriptions_rewrite_id();
        $user_tops_id       = bbp_get_user_topics_rewrite_id();
        $user_reps_id       = bbp_get_user_replies_rewrite_id();

        // Rewrite rule matches used repeatedly below
        $root_rule    = '/([^/]+)/?$';
        $feed_rule    = '/([^/]+)/' . $feed_slug  . '/?$';
        $edit_rule    = '/([^/]+)/' . $edit_slug  . '/?$';
        $paged_rule   = '/([^/]+)/' . $paged_slug . '/?([0-9]{1,})/?$';

        // Search rules (without slug check)
        $search_root_rule  = '/?$';
        $search_paged_rule = '/' . $paged_slug . '/?([0-9]{1,})/?$';

        /** Add ***************************************************************/

        // Edit Forum|Topic|Reply|Topic-tag
        add_rewrite_rule( $forum_slug . $edit_rule, 'index.php?' . bbp_get_forum_post_type()  . '=$matches[1]&' . $edit_id . '=1', $priority );
        add_rewrite_rule( $topic_slug . $edit_rule, 'index.php?' . bbp_get_topic_post_type()  . '=$matches[1]&' . $edit_id . '=1', $priority );
        add_rewrite_rule( $reply_slug . $edit_rule, 'index.php?' . bbp_get_reply_post_type()  . '=$matches[1]&' . $edit_id . '=1', $priority );
        add_rewrite_rule( $ttag_slug  . $edit_rule, 'index.php?' . bbp_get_topic_tag_tax_id() . '=$matches[1]&' . $edit_id . '=1', $priority );

        // Topic-View Pagination|Feed|View
        add_rewrite_rule( $view_slug . $paged_rule, 'index.php?' . $view_id . '=$matches[1]&' . $paged_id . '=$matches[2]', $priority );
        add_rewrite_rule( $view_slug . $feed_rule,  'index.php?' . $view_id . '=$matches[1]&' . $feed_id  . '=$matches[2]', $priority );
        add_rewrite_rule( $view_slug . $root_rule,  'index.php?' . $view_id . '=$matches[1]',                               $priority );

        // Search All
        add_rewrite_rule( $search_slug . $search_paged_rule, 'index.php?' . $paged_id .'=$matches[1]', $priority );
        add_rewrite_rule( $search_slug . $search_root_rule,  'index.php?' . $search_id,                $priority );
    }

    /**
     * Add permalink structures for new archive-style destinations.
     *
     * - Users
     * - Topic Views
     * - Search
     *
     * @since bbPress (r4930)
     */
    public static function add_permastructs() {

        // Get unique ID's
        $user_id     = bbp_get_user_rewrite_id();
        $view_id     = bbp_get_view_rewrite_id();
        $search_id   = bbp_get_search_rewrite_id();

        // Get root slugs
        $user_slug   = bbp_get_user_slug();
        $view_slug   = bbp_get_view_slug();
        $search_slug = bbp_get_search_slug();

        // User Permastruct
        add_permastruct( $user_id, $user_slug . '/%' . $user_id . '%', array(
            'with_front'  => false,
            'ep_mask'     => EP_NONE,
            'paged'       => false,
            'feed'        => false,
            'forcomments' => false,
            'walk_dirs'   => true,
            'endpoints'   => false,
        ) );

        // Topic View Permastruct
        add_permastruct( $view_id, $view_slug . '/%' . $view_id . '%', array(
            'with_front'  => false,
            'ep_mask'     => EP_NONE,
            'paged'       => false,
            'feed'        => false,
            'forcomments' => false,
            'walk_dirs'   => true,
            'endpoints'   => false,
        ) );

        // Search Permastruct
        add_permastruct( $user_id, $search_slug . '/%' . $search_id . '%', array(
            'with_front'  => false,
            'ep_mask'     => EP_NONE,
            'paged'       => true,
            'feed'        => false,
            'forcomments' => false,
            'walk_dirs'   => true,
            'endpoints'   => false,
        ) );
    }
}