<?php
/**
 * Displays the listing of course content
 *
 * Available Variables:
 * $course_id                  : (int) ID of the course
 * $course                     : (object) Post object of the course
 * $course_settings            : (array) Settings specific to current course
 *
 * $courses_options            : Options/Settings as configured on Course Options page
 * $lessons_options            : Options/Settings as configured on Lessons Options page
 * $quizzes_options            : Options/Settings as configured on Quiz Options page
 *
 * $user_id                    : Current User ID
 * $logged_in                  : User is logged in
 * $current_user               : (object) Currently logged in user object
 *
 * $course_status              : Course Status
 * $has_access                 : User has access to course or is enrolled.
 * $materials                  : Course Materials
 * $has_course_content         : Course has course content
 * $lessons                    : Lessons Array
 * $quizzes                    : Quizzes Array
 * $lesson_progression_enabled : (true/false)
 * $has_topics                 : (true/false)
 * $lesson_topics              : (array) lessons topics
 *
 * @since 3.0
 *
 * @package LearnDash\Course
 */ 

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Display lessons if they exist
 *
 * @var $lessons [array]
 * @since 3.0
 */

if ( ! empty( $lessons ) || ! empty( $quizzes ) ) :

	/**
	 * Filters LearnDash Course table CSS class.
	 *
	 * @param string $cours_table_class CSS classes for course table.
	 */
	$table_class = apply_filters( 'learndash_course_table_class', 'ld-item-list-items ' . ( isset( $lesson_progression_enabled ) && $lesson_progression_enabled ? 'ld-lesson-progression' : '' ) );

	/**
	 * Display the expand button if lesson has topics
	 *
	 * @var $lessons [array]
	 * @since 3.0
	 */
	?>

	<div class="<?php echo esc_attr( $table_class ); ?>" id="<?php echo esc_attr( 'ld-item-list-' . $course_id ); ?>" data-ld-expand-list="true">
		<?php
		/**
		 * Fires before the course listing.
		 *
		 * @since 3.0.0
		 *
		 * @param int $course_id Course ID.
		 * @param int $user_id   User ID.
		 */
		do_action( 'learndash-course-listing-before', $course_id, $user_id );

		if ( $lessons && ! empty( $lessons ) ) :

			/**
			 * Loop through each lesson and output a row
			 *
			 * @var $lessons [array]
			 * @since 3.0
			 */

			$sections = learndash_30_get_course_sections( $course_id );
			$i        = 0;

			foreach ( $lessons as $lesson ) :
				learndash_get_template_part(
					'lesson/partials/row.php',
					array(
						'count'                => $i,
						'sections'             => $sections,
						'lesson'               => $lesson,
						'course_id'            => $course_id,
						'user_id'              => $user_id,
						'lesson_topics'        => ! empty( $lesson_topics ) ? $lesson_topics : [],
						'has_access'           => $has_access,
						'course_pager_results' => $course_pager_results,
					),
					true
				);
				$i++;
			endforeach;

		endif;

		/**
		 * Determine if we should show course quizzes at this point or not
		 *
		 * @var $show_course_quizzes boolean
		 * @since 3.0
		 */
		$show_course_quizzes = true;
		if ( isset( $course_pager_results['pager'] ) && ! empty( $course_pager_results['pager'] ) && 0 !== absint( $course_pager_results['pager']['total_pages'] ) ) :
			$show_course_quizzes = ( $course_pager_results['pager']['paged'] == $course_pager_results['pager']['total_pages'] ? true : false );
		endif;
		/**
		 * Filters whether to show course quizzes while listing the course content
		 *
		 * @param boolean $show_course_quizzes Whether to show course quizzes in course listing or not.
		 * @param int     $course_id           Course ID.
		 * @param int     $user_id             User ID.
		 */
		$show_course_quizzes = apply_filters( 'learndash-show-course-quizzes', $show_course_quizzes, $course_id, $user_id );

		if ( $show_course_quizzes && ! empty( $quizzes ) ) :
			foreach ( $quizzes as $quiz ) :
				learndash_get_template_part(
					'quiz/partials/row.php',
					array(
						'course_id'  => $course_id,
						'user_id'    => $user_id,
						'context'    => 'course',
						'quiz'       => $quiz,
						'has_access' => $has_access,
					),
					true
				);
			endforeach;
		endif;

		/**
		 * Fires after the course listing.
		 *
		 * @since 3.0.0
		 *
		 * @param int $course_id Course ID.
		 * @param int $user_id   User ID.
		 */
		do_action( 'learndash-course-listing-after', $course_id, $user_id );

		/**
		 * Fires before the course pagination.
		 *
		 * @since 3.0.0
		 *
		 * @param int $course_id Course ID.
		 * @param int $user_id   User ID.
		 */
		do_action( 'learndash-course-pagination-before', $course_id, $user_id );

		if ( isset( $course_pager_results['pager'] ) ) :
			learndash_get_template_part(
				'modules/pagination.php',
				array(
					'pager_results' => $course_pager_results['pager'],
					'pager_context' => ( isset( $context ) ? $context : 'course_lessons' ),
					'course_id'     => $course_id,
				),
				true
			);
		endif;

		/**
		 * Fires after the course pagination.
		 *
		 * @since 3.0.0
		 *
		 * @param int $course_id Course ID.
		 * @param int $user_id   User ID.
		 */
		do_action( 'learndash-course-pagination-after', $course_id, $user_id );
		?>
	</div> <!--/.ld-item-list-items-->
<?php endif; ?>
