BuddyPress Profile menu from toolbar to main menu

/*
* Tested on BP 2.3.2.1 / Twenty Twelve
* A similar BP profile menu as under Howdy, to add to main menu.
* Code goes into bp-custom.php
*/

function bpfr_nav_menu_profile_link( $menu ) {
global $bp;

	// determine user to use
	$current_user = wp_get_current_user();
	$user_id = bp_get_member_user_id();	
	// print out username
	$name = sprintf( '%1$s', $current_user->user_login );
	// fetching url's
	$profile_url = bp_loggedin_user_domain();
	$notifications_link = trailingslashit( $user_domain . bp_get_notifications_slug() );
	
	// rebuilding partially the notification counter which is originally aside Howdy. Only the total count, no details in sub-menu.
	$notifications = bp_notifications_get_notifications_for_user( bp_loggedin_user_id(), 'object' );
	$count         = ! empty( $notifications ) ? count( $notifications ) : 0;
	$alert_class   = (int) $count > 0 ? 'pending-count alert' : 'count no-alert';
	$notif_title    = '<span id="ab-pending-notifications" class="' . $alert_class . '">[ ' . number_format_i18n( $count ) . ' ]</span>';
	$notif_link     = trailingslashit( bp_loggedin_user_domain() . bp_get_notifications_slug() );
	
	// get user's avatar
	$avatar =  bp_core_fetch_avatar( array(
			'item_id' => bp_loggedin_user_id(),
			'width' => 16,
			'height' => 16,
			'class' => 'avatar',
			)
		);

	// menu only for logged-in user
    if( is_user_logged_in() ) {
	// notif items, with count
	$count = bp_notifications_get_unread_notification_count( bp_loggedin_user_id() );
		
		if ( ! empty( $count ) ) {
			$notif  = sprintf( _x( 'Notifications <span class="count">%s</span>', 'My Account Notification pending', 'buddypress' ), number_format_i18n( $count ) );
			$unread = sprintf( _x( 'Unread <span class="count">%s</span>', 'My Account Notification pending', 'buddypress' ), number_format_i18n( $count ) );
		} else {
			$notif  = _x( 'Notifications', 'My Account Notification', 'buddypress' );
			$unread = _x( 'Unread', 'My Account Notification sub nav', 'buddypress' );
		} 
	// messages items, with count
	$count = messages_get_unread_count();
	if ( !empty( $count ) ) {
		$msg = sprintf( __( 'Messages <span class="count">%s</span>', 'buddypress' ), number_format_i18n( $count ) );
		$inbox = sprintf( __( 'Inbox <span class="count">%s</span>',    'buddypress' ), number_format_i18n( $count ) );
	} else {
		$msg = __( 'Messages', 'buddypress' );
		$inbox = __( 'Inbox',    'buddypress' );
	}
	// the menu itself
	$profilelink = '
	<li class="menu-item-800" style="margin-right:0px!important;"><a href="' . $notif_link . '">'. $notif_title .'</a></li>
	<li class="menu-item-900"><a href="' . $profile_url . '">'. $name .' '. $avatar .'</a>
		<ul class="sub-menu">
		<li class="menu-item" id="menu-item-901"><a href="' . $profile_url . 'activity">'. __('My Activities', 'buddypress') .'</a></li>
		<li class="menu-item" id="menu-item-902"><a href="' . $profile_url . 'groups">'. __('My Groups', 'buddypress') .' </a>
			<ul class="ab-submenu">
			<li id="create-group">'. bp_get_group_create_button() .'</li>
			</ul>
		</li>

		<li class="menu-item" id="menu-item-903"><a href="' . $profile_url . 'notifications">'. $notif .' </a>
			<ul class="ab-submenu">
				<li id="unread-notif"><a href="' . $profile_url . 'notifications">'. $unread .'</a></li>
				<li id="read-notif"><a href="' . $profile_url . 'notifications/read">'. __('Read', 'buddypress') .'</a></li>
			</ul>
		</li>

		<li class="menu-item" id="menu-item-904"><a href="' . $profile_url . 'messages">'. $msg .' </a>
			<ul class="ab-submenu">
				<li id="custom-inbox"><a href="' . $profile_url . 'messages/inbox">'. $inbox .'</a></li>
				<li id="custom-compose"><a href="' . $profile_url . 'messages/compose">'. __('Compose', 'buddypress') .'</a></li>
			</ul>
		</li>

		</ul>
	</li>';

	$menu = $profilelink . $menu;
    }
    return $menu;
}
add_filter( 'wp_nav_menu_items', 'bpfr_nav_menu_profile_link', 10, 100 );