* When the_post is called, put lesson data into a global.
 *
 * @param mixed $post
 * @return LLMS_Course
 */
function llms_setup_lesson_data( $post ) {
	if ( ! is_admin() ) {

		if ( 'lesson' == $post->post_type ) {
			unset( $GLOBALS['lesson'] );

			if ( is_int( $post ) ) {
				$post = get_post( $post ); }

			if ( empty( $post->post_type ) ) {
				return; }

			$courseid = get_post_meta( $post->ID, '_llms_parent_course' );

			if ( isset( $courseid ) ) {
				$parent_course = get_post( $courseid );
			}

			$GLOBALS['lesson'] = get_lesson( $post );

			llms_setup_course_data( $parent_course );

			return $GLOBALS['lesson'];