| 1 |
<?php |
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|
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namespace LearnPress\MCP\Domain; |
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|
| 5 |
use LearnPress\MCP\Mappers\ResponseMapper; |
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use LearnPress\MCP\Support\Curriculum; |
| 7 |
use LearnPress\MCP\Support\Errors; |
| 8 |
use LearnPress\MCP\Support\Pagination; |
| 9 |
use LearnPress\MCP\Support\Permissions; |
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use LearnPress\MCP\Support\Sanitizer; |
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use LearnPress\MCP\Support\Validator; |
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use LearnPress\Models\CourseModel; |
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use LearnPress\Models\CoursePostModel; |
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use LearnPress\Models\CourseSectionModel; |
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use LearnPress\Models\LessonPostModel; |
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use LP_Material_Files_DB; |
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use Throwable; |
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use WP_Error; |
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|
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defined( 'ABSPATH' ) || exit; |
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|
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/** |
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* Lesson create/update/delete executors. |
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* |
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* Creates lessons through the LearnPress section curriculum API and persists |
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* lesson metadata. Delete is reversible (trash + relationship removal with |
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* recovery metadata). |
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*/ |
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class LessonTools { |
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|
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const VIDEO_INTRO_META = '_lp_lesson_video_intro'; |
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|
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/** |
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* Execute `learnpress/create-lesson`. |
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* |
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* @param mixed $input Ability input. |
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* |
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* @return array|WP_Error |
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*/ |
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public static function create_lesson( $input ) { |
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$args = is_array( $input ) ? $input : array(); |
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$course_id = Validator::require_id( $args, 'course_id' ); |
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if ( is_wp_error( $course_id ) ) { |
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return $course_id; |
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} |
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$section_id = Validator::require_id( $args, 'section_id' ); |
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if ( is_wp_error( $section_id ) ) { |
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return $section_id; |
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} |
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|
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$title = Sanitizer::text( $args['title'] ?? '' ); |
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if ( '' === $title ) { |
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return Errors::invalid( __( 'title is required.', 'learnpress' ) ); |
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} |
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|
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$course = Validator::find_course( $course_id ); |
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if ( is_wp_error( $course ) ) { |
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return $course; |
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} |
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$section = Validator::find_section( $section_id, $course_id ); |
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if ( is_wp_error( $section ) ) { |
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return $section; |
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} |
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|
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if ( ! Permissions::can_edit_post( $course_id ) ) { |
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return Errors::forbidden(); |
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} |
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|
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$status = Validator::status( $args['status'] ?? '' ); |
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if ( is_wp_error( $status ) ) { |
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return $status; |
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} |
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|
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try { |
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$section_item = $section->create_item_and_add( |
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array( |
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'item_type' => LP_LESSON_CPT, |
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'item_title' => $title, |
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'item_content' => Sanitizer::html( $args['content'] ?? '' ), |
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) |
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); |
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|
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$lesson_id = absint( $section_item->item_id ); |
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$lesson = LessonPostModel::find( $lesson_id, true ); |
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if ( ! $lesson instanceof LessonPostModel ) { |
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return Errors::internal(); |
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} |
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|
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// Default to draft on create (create_item_and_add publishes by default). |
| 90 |
self::apply_fields( $lesson, $args, '' !== $status ? $status : 'draft' ); |
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|
| 92 |
if ( array_key_exists( 'order', $args ) ) { |
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$course_post = CoursePostModel::find( $course_id, true ); |
| 94 |
if ( $course_post instanceof CoursePostModel ) { |
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Curriculum::place_item( $course_post, $course_id, $lesson_id, $section_id, $section_id, absint( $args['order'] ) ); |
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} |
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} |
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|
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$lesson = LessonPostModel::find( $lesson_id, true ); |
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|
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return array( |
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'lesson' => ResponseMapper::lesson_write_result( |
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$lesson, |
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array( |
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'course_id' => $course_id, |
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'section_id' => $section_id, |
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) |
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), |
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); |
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} catch ( Throwable $e ) { |
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return Errors::from_throwable( $e ); |
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} |
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} |
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|
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/** |
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* Execute `learnpress/update-lesson`. |
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* |
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* @param mixed $input Ability input. |
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* |
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* @return array|WP_Error |
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*/ |
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public static function update_lesson( $input ) { |
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$args = is_array( $input ) ? $input : array(); |
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$lesson_id = Validator::require_id( $args, 'lesson_id' ); |
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if ( is_wp_error( $lesson_id ) ) { |
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return $lesson_id; |
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} |
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|
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$lesson = Validator::find_lesson( $lesson_id ); |
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if ( is_wp_error( $lesson ) ) { |
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return $lesson; |
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} |
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|
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if ( ! Permissions::can_edit_post( $lesson_id ) ) { |
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return Errors::forbidden(); |
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} |
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|
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$status = Validator::status( $args['status'] ?? '' ); |
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if ( is_wp_error( $status ) ) { |
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return $status; |
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} |
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|
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$location = Curriculum::resolve_location( $lesson_id, LP_LESSON_CPT ); |
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|
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try { |
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if ( array_key_exists( 'title', $args ) ) { |
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$lesson->post_title = Sanitizer::text( $args['title'] ); |
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} |
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if ( array_key_exists( 'content', $args ) ) { |
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$lesson->post_content = Sanitizer::html( $args['content'] ); |
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} |
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self::apply_fields( $lesson, $args, $status ); |
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|
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$move = self::move_within_curriculum( $lesson_id, $location, $args ); |
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if ( is_wp_error( $move ) ) { |
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return $move; |
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} |
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$location = $move; |
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|
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$lesson = LessonPostModel::find( $lesson_id, true ); |
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|
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return array( 'lesson' => ResponseMapper::lesson( $lesson, $location ) ); |
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} catch ( Throwable $e ) { |
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return Errors::from_throwable( $e ); |
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} |
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} |
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|
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/** |
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* Execute `learnpress/delete-lesson` (reversible trash). |
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* |
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* @param mixed $input Ability input. |
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* |
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* @return array|WP_Error |
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*/ |
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public static function delete_lesson( $input ) { |
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$args = is_array( $input ) ? $input : array(); |
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$lesson_id = Validator::require_id( $args, 'lesson_id' ); |
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if ( is_wp_error( $lesson_id ) ) { |
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return $lesson_id; |
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} |
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|
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$lesson = Validator::find_lesson( $lesson_id ); |
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if ( is_wp_error( $lesson ) ) { |
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return $lesson; |
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} |
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|
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if ( ! Permissions::can_delete_post( $lesson_id ) ) { |
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return Errors::forbidden(); |
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} |
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|
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$hint_course = absint( $args['course_id'] ?? 0 ); |
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$location = Curriculum::resolve_location( $lesson_id, LP_LESSON_CPT, $hint_course ); |
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|
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if ( $hint_course > 0 && $location['course_id'] !== $hint_course ) { |
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return Errors::not_found( __( 'Lesson does not belong to the provided course.', 'learnpress' ) ); |
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} |
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if ( ! empty( $args['section_id'] ) && absint( $args['section_id'] ) !== $location['section_id'] ) { |
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return Errors::not_found( __( 'Lesson does not belong to the provided section.', 'learnpress' ) ); |
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} |
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|
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try { |
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$removed_from_curriculum = false; |
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if ( $location['section_id'] > 0 ) { |
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$removed_from_curriculum = Curriculum::remove_item_from_section( $location['section_id'], $lesson_id, $location['course_id'] ); |
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} |
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|
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$trashed = wp_trash_post( $lesson_id ); |
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if ( ! $trashed ) { |
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return Errors::internal(); |
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} |
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|
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return array( |
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'trashed' => true, |
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'lesson_id' => $lesson_id, |
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'removed_from_curriculum' => $removed_from_curriculum, |
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'recovery' => array( |
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'course_id' => $location['course_id'], |
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'section_id' => $location['section_id'], |
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'previous_order' => $location['item_order'], |
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'item_type' => LP_LESSON_CPT, |
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'note' => __( 'Lesson moved to trash. Restore from WP admin and re-add to the section to recover.', 'learnpress' ), |
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), |
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); |
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} catch ( Throwable $e ) { |
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return Errors::from_throwable( $e ); |
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} |
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} |
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|
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/** |
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* Execute `learnpress/list-lessons`. |
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* |
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* @param mixed $input Ability input. |
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* |
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* @return array|WP_Error |
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*/ |
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public static function list_lessons( $input ) { |
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$args = Sanitizer::input_array( $input, 'learnpress/list-lessons' ); |
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if ( is_wp_error( $args ) ) { |
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return $args; |
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} |
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|
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$course_id = Validator::require_id( $args, 'course_id' ); |
| 243 |
if ( is_wp_error( $course_id ) ) { |
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return $course_id; |
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} |
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|
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$course = CourseModel::find( $course_id, true ); |
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if ( ! $course instanceof CourseModel ) { |
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return Errors::not_found( __( 'Course not found.', 'learnpress' ) ); |
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} |
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|
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$section_id = absint( $args['section_id'] ?? 0 ); |
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$page = Pagination::page( $args['page'] ?? 1 ); |
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$per_page = Pagination::per_page( $args['per_page'] ?? 10 ); |
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$statuses = Sanitizer::status_list( $args['status'] ?? null ); |
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$refs = Curriculum::collect_items( $course, LP_LESSON_CPT, $section_id ); |
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|
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$all = array(); |
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foreach ( $refs as $ref ) { |
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$lesson = LessonPostModel::find( (int) $ref['item_id'], true ); |
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if ( ! $lesson instanceof LessonPostModel ) { |
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continue; |
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} |
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if ( ! empty( $statuses ) && ! in_array( $lesson->post_status, $statuses, true ) ) { |
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continue; |
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} |
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$all[] = ResponseMapper::lesson_summary( $lesson, $ref ); |
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} |
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|
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$total = count( $all ); |
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$items = array_slice( $all, ( $page - 1 ) * $per_page, $per_page ); |
| 272 |
|
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return array( |
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'items' => array_values( $items ), |
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'pagination' => array( |
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'page' => $page, |
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'per_page' => $per_page, |
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'total_items' => $total, |
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'total_pages' => Pagination::total_pages( $total, $per_page ), |
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), |
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); |
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} |
| 283 |
|
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/** |
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* Execute `learnpress/get-lesson-details`. |
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* |
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* @param mixed $input Ability input. |
| 288 |
* |
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* @return array|WP_Error |
| 290 |
*/ |
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public static function get_lesson_details( $input ) { |
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$args = Sanitizer::input_array( $input, 'learnpress/get-lesson-details' ); |
| 293 |
if ( is_wp_error( $args ) ) { |
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return $args; |
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} |
| 296 |
|
| 297 |
$lesson_id = Validator::require_id( $args, 'lesson_id' ); |
| 298 |
if ( is_wp_error( $lesson_id ) ) { |
| 299 |
return $lesson_id; |
| 300 |
} |
| 301 |
|
| 302 |
$lesson = LessonPostModel::find( $lesson_id, true ); |
| 303 |
if ( ! $lesson instanceof LessonPostModel ) { |
| 304 |
return Errors::not_found( __( 'Lesson not found.', 'learnpress' ) ); |
| 305 |
} |
| 306 |
|
| 307 |
$materials = array(); |
| 308 |
if ( class_exists( 'LP_Material_Files_DB' ) ) { |
| 309 |
$materials_rs = LP_Material_Files_DB::getInstance()->get_material_by_item_id( $lesson_id, 0, 0, false ); |
| 310 |
$materials_rs = is_array( $materials_rs ) ? $materials_rs : array(); |
| 311 |
foreach ( $materials_rs as $material ) { |
| 312 |
$materials[] = array( |
| 313 |
'file_id' => absint( $material->file_id ?? 0 ), |
| 314 |
'name' => (string) ( $material->file_name ?? '' ), |
| 315 |
'type' => (string) ( $material->file_type ?? '' ), |
| 316 |
'method' => (string) ( $material->method ?? '' ), |
| 317 |
'file_path' => (string) ( $material->file_path ?? '' ), |
| 318 |
'url' => (string) ( $material->file_url ?? '' ), |
| 319 |
); |
| 320 |
} |
| 321 |
} |
| 322 |
|
| 323 |
return array( |
| 324 |
'lesson' => array( |
| 325 |
'lesson_id' => $lesson->get_id(), |
| 326 |
'title' => (string) $lesson->get_the_title(), |
| 327 |
'content' => (string) $lesson->get_the_content(), |
| 328 |
'excerpt' => (string) $lesson->get_the_excerpt(), |
| 329 |
'duration' => (string) $lesson->get_duration(), |
| 330 |
'video_intro' => (string) $lesson->get_meta_value_by_key( self::VIDEO_INTRO_META, '' ), |
| 331 |
'preview' => (bool) $lesson->has_preview(), |
| 332 |
'status' => (string) $lesson->post_status, |
| 333 |
'permalink' => (string) $lesson->get_permalink(), |
| 334 |
'materials' => $materials, |
| 335 |
'materials_no' => count( $materials ), |
| 336 |
), |
| 337 |
); |
| 338 |
} |
| 339 |
|
| 340 |
/** |
| 341 |
* Apply common lesson post-status and metadata fields. |
| 342 |
* |
| 343 |
* @param LessonPostModel $lesson Lesson model. |
| 344 |
* @param array $args Input args. |
| 345 |
* @param string $status Validated status ('' when not provided). |
| 346 |
* |
| 347 |
* @return void |
| 348 |
*/ |
| 349 |
protected static function apply_fields( LessonPostModel $lesson, array $args, string $status ): void { |
| 350 |
if ( array_key_exists( 'excerpt', $args ) ) { |
| 351 |
$lesson->post_excerpt = Sanitizer::html( $args['excerpt'] ); |
| 352 |
} |
| 353 |
if ( '' !== $status ) { |
| 354 |
$lesson->post_status = $status; |
| 355 |
} |
| 356 |
|
| 357 |
$lesson->save(); |
| 358 |
|
| 359 |
if ( array_key_exists( 'duration', $args ) ) { |
| 360 |
$lesson->save_meta_value_by_key( LessonPostModel::META_KEY_DURATION, Sanitizer::text( $args['duration'] ) ); |
| 361 |
} |
| 362 |
if ( array_key_exists( 'preview', $args ) ) { |
| 363 |
$lesson->save_meta_value_by_key( LessonPostModel::META_KEY_PREVIEW, Sanitizer::boolean( $args['preview'] ) ? 'yes' : 'no' ); |
| 364 |
} |
| 365 |
if ( array_key_exists( 'video_intro', $args ) ) { |
| 366 |
$lesson->save_meta_value_by_key( self::VIDEO_INTRO_META, Sanitizer::url( $args['video_intro'] ) ); |
| 367 |
} |
| 368 |
} |
| 369 |
|
| 370 |
/** |
| 371 |
* Move/reorder the lesson within the curriculum when requested. |
| 372 |
* |
| 373 |
* @param int $lesson_id Lesson ID. |
| 374 |
* @param array $location Current location. |
| 375 |
* @param array $args Input args. |
| 376 |
* |
| 377 |
* @return array|WP_Error Updated location. |
| 378 |
*/ |
| 379 |
protected static function move_within_curriculum( int $lesson_id, array $location, array $args ) { |
| 380 |
$has_section = array_key_exists( 'section_id', $args ); |
| 381 |
$has_order = array_key_exists( 'order', $args ); |
| 382 |
if ( ! $has_section && ! $has_order ) { |
| 383 |
return $location; |
| 384 |
} |
| 385 |
|
| 386 |
$course_id = $location['course_id']; |
| 387 |
if ( $course_id <= 0 ) { |
| 388 |
return Errors::invalid( __( 'Lesson is not assigned to a course; cannot move or reorder.', 'learnpress' ) ); |
| 389 |
} |
| 390 |
|
| 391 |
$old_section_id = $location['section_id']; |
| 392 |
$new_section_id = $has_section ? absint( $args['section_id'] ) : $old_section_id; |
| 393 |
|
| 394 |
if ( $has_section ) { |
| 395 |
$section = Validator::find_section( $new_section_id, $course_id ); |
| 396 |
if ( is_wp_error( $section ) ) { |
| 397 |
return $section; |
| 398 |
} |
| 399 |
} |
| 400 |
|
| 401 |
$position = $has_order ? absint( $args['order'] ) : 0; |
| 402 |
$course_post = CoursePostModel::find( $course_id, true ); |
| 403 |
if ( $course_post instanceof CoursePostModel ) { |
| 404 |
Curriculum::place_item( $course_post, $course_id, $lesson_id, $new_section_id, $old_section_id, $position ); |
| 405 |
} |
| 406 |
|
| 407 |
return Curriculum::resolve_location( $lesson_id, LP_LESSON_CPT, $course_id ); |
| 408 |
} |
| 409 |
} |
| 410 |
|
