dpoint'                  => 'messages',
			'BP_REST_Sitewide_Notices_Endpoint'          => 'messages',

			'BP_REST_Notifications_Endpoint'             => 'notifications',

			'BP_REST_XProfile_Fields_Endpoint'           => 'xprofile',
			'BP_REST_XProfile_Field_Groups_Endpoint'     => 'xprofile',
			'BP_REST_XProfile_Data_Endpoint'             => 'xprofile',
		);

		$component = null;

		// First check to see if the class is one without a properly namespaced name.
		if ( isset( $irregular_map[ $class ] ) ) {
			$component = $irregular_map[ $class ];

		// Next chunk is usually the component name.
		} elseif ( in_array( $class_parts[1], $components, true ) ) {
			$component = $class_parts[1];
		}

		if ( ! $component ) {
			return;
		}

		// Sanitize class name.
		$class = strtolower( str_replace( '_', '-', $class ) );

		if ( 'bp-rest-attachments' === $class ) {
			$path = dirname( __FILE__ ) . "/bp-{$component}/classes/trait-attachments.php";
		} else {
			$path = dirname( __FILE__ ) . "/bp-{$component}/classes/class-{$class}.php";
		}

		// Sanity check.
		if ( ! file_exists( $path ) ) {
			return;
		}

		/*
		 * Sanity check 2 - Check if component is active before loading class.
		 * Skip if PHPUnit is running, or BuddyPress is installing for the first time.
		 */
		if (
			! in_array( $component, array( 'core', 'members' ), true ) &&
			! bp_is_active( $component ) &&
			! $this->is_phpunit_running
		) {
			return;
		}

		require $path;
	}

	/**
	 * Set up the default hooks and actions.
	 *
	 * @since 1.6.0
	 */
	private function setup_actions() {

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

		// If BuddyPress is being deactivated, do not add any actions.
		if ( bp_is_deactivation( $this->basename ) ) {
			return;
		}

		// Array of BuddyPress 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.
			'register_post_statuses',   // Register post statuses.
			'register_taxonomies',      // Register taxonomies.
			'register_views',           // Register the views.
			'register_theme_packages',  // Register bundled theme packages (bp-themes).
			'load_textdomain',          // Load textdomain.
			'add_rewrite_tags',         // Add rewrite tags.
			'generate_rewrite_rules',    // Generate rewrite rules.
		);

		// Add the actions.
		foreach ( $actions as $class_action ) {
			if ( method_exists( $this, $class_action ) ) {
				add_action( 'bp_' . $class_action, array( $this, $class_action ), 5 );
			}
		}

		/**
		 * Fires after the setup of all BuddyPress actions.
		 *
		 * Includes bbp-core-hooks.php.
		 *
		 * @since 1.7.0
		 *
		 * @param BuddyPress $this. Current BuddyPress instance. Passed by reference.
		 */
		do_action_ref_array( 'bp_after_setup_actions', array( &$this ) );
	}

	/**
	 * Private method to align the active and database versions.
	 *
	 * @since 1.7.0
	 */
	private function versions() {

		// Get the possible DB versions (boy is this gross).
		$versions               = array();
		$versions['1.6-single'] = get_blog_option( $this->root_blog_id, '_bp_db_version' );

		// 1.6-single exists, so trust it.
		if ( ! empty( $versions['1.6-single'] ) ) {
			$this->db_version_raw = (int) $versions['1.6-single'];

		// If no 1.6-single exists, use the max of the others.
		} else {
			$versions['1.2']        = get_site_option( 'bp-core-db-version' );
			$versions['1.5-multi']  = get_site_option( 'bp-db-version' );
			$versions['1.6-multi']  = get_site_option( '_bp_db_version' );
			$versions['1.5-single'] = get_blog_option( $this->root_blog_id, 'bp-db-version' );

			// Remove empty array items.
			$versions             = array_filter( $versions );
			$this->db_version_raw = (int) ( ! empty( $versions ) ) ? (int) max( $versions ) : 0;
		}
	}

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

	/**
	 * Set up BuddyPress's legacy theme directory.
	 *
	 * Starting with version 1.2, and ending with version 1.8, BuddyPress
	 * registered a custom theme directory - bp-themes - which contained
	 * the bp-default theme. Since BuddyPress 1.9, bp-themes is no longer
	 * registered (and bp-default no longer offered) on new installations.
	 * Sites using bp-default (or a child theme of bp-default) will
	 * continue to have bp-themes registered as before.
	 * Since 12.0, BuddyPress is no longer including BP Default. To find it
	 * back, you need to install and activate the BP Classic plugin.
	 *
	 * @since 1.5.0
	 * @deprecated 12.0.0
	 */
	public function register_theme_directory() {
		_deprecated_function( __METHOD__, '12.0.0' );
	}

	/**
	 * Register bundled theme packages.
	 *
	 * Note that since we currently have complete control over bp-themes and
	 * the bp-legacy folders, it's fine to hardcode these here. If at a
	 * later date we need to automate this, an API will need to be built.
	 *
	 * @since 1.7.0
	 */
	public function register_theme_packages() {

		// Register the default theme compatibility package.
		bp_register_theme_package(
			array(
				'id'      => 'legacy',
				'name'    => __( 'BuddyPress Legacy', 'buddypress' ),
				'version' => bp_get_version(),
				'dir'     => trailingslashit( $this->themes_dir . '/bp-legacy' ),
				'url'     => trailingslashit( $this->themes_url . '/bp-legacy' ),
			)
		);

		bp_register_theme_package(
			array(
				'id'      => 'nouveau',
				'name'    => __( 'BuddyPress Nouveau', 'buddypress' ),
				'version' => bp_get_version(),
				'dir'     => trailingslashit( $this->themes_dir . '/bp-nouveau' ),
				'url'     => trailingslashit( $this->themes_url . '/bp-nouveau' ),
			)
		);

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

	/**
	 * Set up the default BuddyPress theme compatibility location.
	 *
	 * @since 1.7.0
	 */
	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.
		bp_setup_theme_compat( bp_get_theme_package_id() );
	}
}