function lifterlms_course_progress_bar( $progress, $link = false, $button = true, $echo = true ) {

		$progress = round( $progress, 2 );

		$tag  = ( $link ) ? 'a' : 'span';
		$href = ( $link ) ? ' href=" ' . $link . ' "' : '';

		$html = llms_get_progress_bar_html( $progress );

		if ( $button ) {
			$html .= '<' . $tag . ' class="llms-button-primary llms-purchase-button"' . $href . '>' . __( 'Continue', 'lifterlms' ) . '(' . $progress . '%)</' . $tag . '>';
		}

		if ( $echo ) {
			echo wp_kses_post( $html );
		} else {
			return $html;
		}
	}
}

function llms_get_progress_bar_html( $percentage ) {

	$percentage = sprintf( '%s%%', $percentage );

	$html = '<div class="llms-progress">
		<div class="progress__indicator">' . $percentage . '</div>
		<div class="llms-progress-bar">
			<div class="progress-bar-complete" data-progress="' . $percentage . '"  style="width:' . $percentage . '"></div>
		</div></div>';

	return $html;
}


/**
 * Output a course continue button linking to the incomplete lesson for a given student.
 *
 * If the course is complete "Course Complete" is displayed.
 *
 * @since 3.11.1
 * @since 3.15.0 Unknown.
 * @since 7.1.0 Remove check on student existence, now included in the enrollment check.
 *
 * @param int          $post_id  WP Post ID for a course, lesson, or quiz.
 * @param LLMS_Student $student  Instance of an LLMS_Student, defaults to current student.
 * @param int          $progress Current progress of the student through the course.
 * @return void
 */
if ( ! function_exists( 'lifterlms_course_continue_button' ) ) {

	function lifterlms_course_continue_button( $post_id = null, $student = null, $progress = null ) {

		if ( ! $post_id ) {
			$post_id = get_the_ID();
			if ( ! $post_id ) {
				return '';
			}
		}