BuddyPress Gender Based Members Filtering

/**
 * Class Filters
 *
 * @copyright BuddyDev
 */
class Gender_Based_Member_Filter {

	/**
	 * Class self boot
	 */
	public static function boot() {
		$self = new self();
		$self->setup();
	}

	/**
	 * Setup
	 */
	private function setup() {
		add_filter( 'bp_after_has_members_parse_args', array( $this, 'filter_args' ) );

		add_action( 'bp_template_redirect', array( $this, 'check_access' ), 10, 2 );
	}

	/**
	 * Modify groups args
	 *
	 * @param array $args Array of group allowed parameters.
	 *
	 * @return array
	 */
	public function filter_args( $args ) {

		// we do not restrict if a user is not logged in
		// or the logged in user is site admin
		// of the list is being shown inside the admin.
		if ( ! is_user_logged_in() || is_super_admin() || ( is_admin() && ! defined( 'DOING_AJAX' ) ) ) {
			return $args;
		}

		$user_id = bp_loggedin_user_id();

		if ( bp_has_member_type( $user_id, 'male' ) ) {
			$args['member_type'] = 'male';
		} elseif ( bp_has_member_type( $user_id, 'female' ) ) {
			$args['member_type'] = 'female';
		}

		return $args;
	}


	/**
	 * Check access for user profile.
	 */
	public function check_access() {

		if ( ! is_user_logged_in() || ! bp_is_user() || is_super_admin() ) {
			return;
		}

		$gender = $this->get_user_gender( bp_loggedin_user_id() );
		if ( ! $gender ) {
			return;
		}

		// allow access for same gender.
		if ( bp_has_member_type( bp_displayed_user_id(), $gender ) ) {
			return;
		}

		bp_core_add_message( __( 'Access denied.', 'bp-gender-based-filter' ) );
		bp_core_redirect( bp_loggedin_user_domain() );
	}

	private function get_user_gender( $user_id ) {
		$gender       = null;
		$member_types = bp_get_member_type( $user_id, false );
		if ( empty( $member_types ) ) {
			$gender = null;
		} elseif ( in_array( 'male', $member_types ) ) {
			$gender = 'male';
		} elseif ( in_array( 'female', $member_types, true ) ) {
			$gender = 'female';
		}

		return $gender;
	}
}

Gender_Based_Member_Filter::boot();