/**
 * LearnDash Block ld-lesson-list
 *
 * @since 2.5.9
 * @package LearnDash
 */

/**
 * LearnDash block functions
 */
import {
	ldlms_get_post_edit_meta,
	ldlms_get_custom_label,
	ldlms_get_per_page,
} from '../ldlms.js';

/**
 * Internal block libraries
 */
import { __, _x, sprintf} from '@wordpress/i18n';
import { registerBlockType } from '@wordpress/blocks';
import { InspectorControls, useBlockProps } from '@wordpress/block-editor';
import { PanelBody, RangeControl, SelectControl, TextControl, ToggleControl, PanelRow, Disabled } from '@wordpress/components';
import ServerSideRender from '@wordpress/server-side-render';
import { useMemo } from "@wordpress/element";

const block_key   = 'learndash/ld-lesson-list';
const block_title = sprintf(
	// translators: placeholder: Lesson.
	_x('LearnDash %s List', 'placeholder: Lesson', 'learndash'), ldlms_get_custom_label('lesson')
);
registerBlockType(
	block_key,
	{
		title: block_title,
		description: sprintf(
			// translators: placeholder: Lessons.
			_x('This block shows a list of %s.', 'placeholder: Lessons', 'learndash'), ldlms_get_custom_label('lessons')),
		icon: 'list-view',
		category: 'learndash-blocks',
		example: {
			attributes: {
				example_show: 1,
			},
		},
		supports: {
			customClassName: false,
		},
		apiVersion: 3,
		attributes: {
			orderby: {
				type: 'string',
				default: 'ID'
			},
			order: {
				type: 'string',
				default: 'DESC'
			},
			per_page: {
				type: 'string',
				default: '',
			},
			course_id: {
				type: 'string',
				default: ''
			},
			show_content: {
				type: 'boolean',
				default: true
			},
			show_thumbnail: {
				type: 'boolean',
				default: true
			},
			lesson_category_name: {
				type: 'string',
				default: ''
			},
			lesson_cat: {
				type: 'string',
				default: ''
			},
			lesson_categoryselector: {
				type: 'boolean',
				default: false
			},
			lesson_tag: {
				type: 'string',
				default: ''
			},
			lesson_tag_id: {
				type: 'string',
				default: ''
			},
			category_name: {
				type: 'string',
				default: ''
			},
			cat: {
				type: 'string',
				default: ''
			},
			categoryselector: {
				type: 'boolean',
				default: false
			},
			tag: {
				type: 'string',
				default: ''
			},
			tag_id: {
				type: 'string',
				default: ''
			},
			course_grid: {
				type: 'boolean',
			},
			col: {
				type: 'integer',
				default: (ldlms_settings['plugins']['learndash-course-grid']['enabled']['col_default'] || 3),
			},
			preview_show: {
				type: 'boolean',
				default: true
			},
			preview_user_id: {
				type: 'string',
				default: '',
			},
			example_show: {
				type: 'boolean',
				default: 0
			},
			editing_post_meta: {
				type: 'object',
			}
		},
		edit: function (props) {
			const { attributes: { orderby, order, per_page, course_id, show_content, show_thumbnail, lesson_category_name, lesson_cat, lesson_categoryselector, lesson_tag, lesson_tag_id, category_name, cat, categoryselector, tag, tag_id, course_grid, col, preview_show, preview_user_id, example_show },
				setAttributes } = props;

			const blockProps = useBlockProps();

			let field_show_content = '';
			let field_show_thumbnail = '';
			let panel_lesson_grid_section = '';

			let course_grid_default = true;
			if (ldlms_settings['plugins']['learndash-course-grid']['enabled'] === true) {
				if ((typeof course_grid !== 'undefined') && ((course_grid == true) || (course_grid == false))) {
					course_grid_default = course_grid;
				}

				let lesson_grid_section_open = false;
				if (course_grid_default == true) {
					lesson_grid_section_open = true;
				}
				panel_lesson_grid_section = (
					<PanelBody
						title={__('Grid Settings', 'learndash')}
						initialOpen={lesson_grid_section_open}
					>
						<ToggleControl
							label={
								__('Show Grid',
								'learndash')
							}
							checked={!!course_grid_default}
							onChange={course_grid => setAttributes({ course_grid })}
						/>
						<RangeControl
							label={__('Columns', 'learndash')}
							value={col || ldlms_settings['plugins']['learndash-course-grid']['enabled']['col_default']}
							min={1}
							max={ldlms_settings['plugins']['learndash-course-grid']['enabled']['col_max']}
							step={1}
							onChange={col => setAttributes({ col })}
						/>
					</PanelBody>
				);
			}

			field_show_content = (
				<ToggleControl
					label={__('Show Content', 'learndash')}
					checked={!!show_content}
					onChange={show_content => setAttributes({ show_content })}
				/>
			);

			field_show_thumbnail = (
				<ToggleControl
					label={__('Show Thumbnail', 'learndash')}
					checked={!!show_thumbnail}
					onChange={show_thumbnail => setAttributes({ show_thumbnail })}
				/>
			);

			const panelbody_header = (
				<PanelBody
					title={__('Settings', 'learndash')}
				>
					<TextControl
						label={sprintf(
							// translators: placeholder: Course.
							_x('%s ID', 'placeholder: Course', 'learndash'), ldlms_get_custom_label('course'))}
						help={sprintf(
							// translators: placeholders: Course, Course.
							_x('Enter single %1$s ID to limit listing. Leave blank if used within a %2$s.', 'placeholders: Course, Course', 'learndash'), ldlms_get_custom_label('course'), ldlms_get_custom_label('course'))}
						value={course_id || ''}
						type={'number'}
						onChange={ function( new_course_id ) {
							if ( new_course_id != "" && new_course_id < 0 ) {
								setAttributes({ course_id: "0" });
							} else {
								setAttributes({ course_id: new_course_id });
							}
						}}					/>

					<SelectControl
						key="orderby"
						label={__('Order by', 'learndash')}
						value={orderby}
						options={[
							{
								label: __('ID - Order by post id. (default)', 'learndash'),
								value: 'ID',
							},
							{
								label: __('Title - Order by post title', 'learndash'),
								value: 'title',
							},
							{
								label: __('Date - Order by post date', 'learndash'),
								value: 'date',
							},
							{
								label: __('Menu - Order by Page Order Value', 'learndash'),
								value: 'menu_order',
							}
						]}
						onChange={orderby => setAttributes({ orderby })}
					/>
					<SelectControl
						key="order"
						label={__('Order', 'learndash')}
						value={order}
						options={[
							{
								label: __('DESC - highest to lowest values (default)', 'learndash'),
								value: 'DESC',
							},
							{
								label: __('ASC - lowest to highest values', 'learndash'),
								value: 'ASC',
							},
						]}
						onChange={order => setAttributes({ order })}
					/>
					<TextControl
						label={sprintf(
							// translators: placeholder: Lessons.
							_x('%s per page', 'placeholder: Lessons', 'learndash'), ldlms_get_custom_label('lessons'))}
						help={sprintf(
							// translators: placeholder: per_page.
							_x('Leave empty for default (%d) or 0 to show all items.', 'placeholder: per_page', 'learndash'), ldlms_get_per_page('per_page'))}
						value={per_page || ''}
						type={'number'}
						onChange={ function( new_per_page ) {
							if ( new_per_page != "" && new_per_page < 0 ) {
								setAttributes({ per_page: "0" });
							} else {
								setAttributes({ per_page: new_per_page });
							}
						}}					/>

					{field_show_content}
					{field_show_thumbnail}
				</PanelBody>
			);

			let panel_lesson_category_section = '';
			if (ldlms_settings['settings']['lessons_taxonomies']['ld_lesson_category'] === 'yes') {
				let panel_lesson_category_section_open = false;
				if ((lesson_category_name != '') || (lesson_cat != '')) {
					panel_lesson_category_section_open = true;
				}
				panel_lesson_category_section = (
					<PanelBody
						title={sprintf(
							// translators: placeholder: Lesson.
							_x('%s Category Settings', 'placeholder: Lesson', 'learndash'), ldlms_get_custom_label('lesson'))}
						initialOpen={panel_lesson_category_section_open}
					>
						<TextControl
							label={sprintf(
								// translators: placeholder: Lesson.
								_x('%s Category Slug', 'placeholder: Lesson', 'learndash'), ldlms_get_custom_label('lesson'))}
							help={sprintf(
								// translators: placeholder: Lessons.
								_x('shows %s with mentioned category slug.', 'placeholder: Lessons', 'learndash'), ldlms_get_custom_label('lessons'))}
							value={lesson_category_name || ''}
							onChange={lesson_category_name => setAttributes({ lesson_category_name })}
						/>

						<TextControl
							label={sprintf(
								// translators: placeholder: Lesson.
								_x('%s Category ID', 'placeholder: Lesson', 'learndash'), ldlms_get_custom_label('lesson'))}
							help={sprintf(
								// translators: placeholder: Lessons.
								_x('shows %s with mentioned category ID.', 'placeholder: Lessons', 'learndash'), ldlms_get_custom_label('lessons'))}
							value={lesson_cat || ''}
							type={'number'}
							onChange={ function( new_lesson_cat ) {
								if ( new_lesson_cat != "" && new_lesson_cat < 0 ) {
									setAttributes({ lesson_cat: "0" });
								} else {
									setAttributes({ lesson_cat: new_lesson_cat });
								}
							}}						/>
						<ToggleControl
							label={sprintf(
								// translators: placeholder: Lesson.
								_x('%s Category Selector', 'placeholder: Lesson', 'learndash'), ldlms_get_custom_label('lesson'))}
							help={sprintf(
								// translators: placeholder: Lessons.
								_x('shows a %s category dropdown.', 'placeholder: Lessons', 'learndash'), ldlms_get_custom_label('lessons'))}
							checked={!!lesson_categoryselector}
							onChange={lesson_categoryselector => setAttributes({ lesson_categoryselector })}
						/>
					</PanelBody>
				);
			}

			let panel_lesson_tag_section = '';
			if (ldlms_settings['settings']['lessons_taxonomies']['ld_lesson_tag'] === 'yes') {
				let panel_lesson_tag_section_open = false;
				if ((lesson_tag != '') || (lesson_tag_id != '')) {
					panel_lesson_tag_section_open = true;
				}
				panel_lesson_tag_section = (
					<PanelBody
						title={sprintf(
							// translators: placeholder: Lesson.
							_x('%s Tag Settings', 'placeholder: Lesson', 'learndash'), ldlms_get_custom_label('lesson'))}
						initialOpen={panel_lesson_tag_section_open}
					>
						<TextControl
							label={sprintf(
								// translators: placeholder: Lesson.
								_x('%s Tag Slug', 'placeholder: Lesson', 'learndash'), ldlms_get_custom_label('lesson'))}
							help={sprintf(
								// translators: placeholder: Lessons.
								_x('shows %s with mentioned tag slug.', 'placeholder: Lessons', 'learndash'), ldlms_get_custom_label('lessons'))}
							value={lesson_tag || ''}
							onChange={lesson_tag => setAttributes({ lesson_tag })}
						/>

						<TextControl
							label={sprintf(
								// translators: placeholder: Lesson.
								_x('%s Tag ID', 'placeholder: Lesson', 'learndash'), ldlms_get_custom_label('lesson'))}
							help={sprintf(
								// translators: placeholder: Lessons.
								_x('shows %s with mentioned tag ID.', 'placeholder: Lessons', 'learndash'), ldlms_get_custom_label('lessons'))}
							value={lesson_tag_id || ''}
							type={'number'}
							onChange={ function( new_lesson_tag_id ) {
								if ( new_lesson_tag_id != "" && new_lesson_tag_id < 0 ) {
									setAttributes({ lesson_tag_id: "0" });
								} else {
									setAttributes({ lesson_tag_id: new_lesson_tag_id });
								}
							}}
						/>
					</PanelBody>
				);
			}

			let panel_wp_category_section = '';
			if (ldlms_settings['settings']['lessons_taxonomies']['wp_post_category'] === 'yes') {
				let panel_wp_category_section_open = false;
				if ((category_name != '') || (cat != '')) {
					panel_wp_category_section_open = true;
				}
				panel_wp_category_section = (
					<PanelBody
						title={__('WP Category Settings', 'learndash')}
						initialOpen={panel_wp_category_section_open}
					>
						<TextControl
							label={__('WP Category Slug', 'learndash')}
							help={sprintf(
								// translators: placeholder: Lessons.
								_x('shows %s with mentioned WP Category slug.', 'placeholder: Lessons', 'learndash'), ldlms_get_custom_label('lessons'))}
							value={category_name || ''}
							onChange={category_name => setAttributes({ category_name })}
						/>

						<TextControl
							label={sprintf(
								// translators: placeholder: Lesson.
								_x('%s Category ID', 'placeholder: Lesson', 'learndash'), ldlms_get_custom_label('lesson'))}
							help={sprintf(
								// translators: placeholder: Lessons.
								_x('shows %s with mentioned category ID.', 'placeholder: Lessons', 'learndash'), ldlms_get_custom_label('lessons'))}
							value={cat || ''}
							type={'number'}
							onChange={ function( new_cat ) {
								if ( new_cat != "" && new_cat < 0 ) {
									setAttributes({ cat: "0" });
								} else {
									setAttributes({ cat: new_cat });
								}
							}}
						/>
						<ToggleControl
							label={__('WP Category Selector', 'learndash')}
							help={__('shows a WP category dropdown.', 'learndash')}
							checked={!!categoryselector}
							onChange={categoryselector => setAttributes({ categoryselector })}
						/>
					</PanelBody>
				);
			}

			let panel_wp_tag_section = '';
			if (ldlms_settings['settings']['lessons_taxonomies']['wp_post_tag'] === 'yes') {
				let panel_wp_tag_section_open = false;
				if ((tag != '') || (tag_id != '')) {
					panel_wp_tag_section_open = true;
				}
				panel_wp_tag_section = (
					<PanelBody
						title={__('WP Tag Settings', 'learndash')}
						initialOpen={panel_wp_tag_section_open}
					>
						<TextControl
							label={__('WP Tag Slug', 'learndash')}
							help={sprintf(
								// translators: placeholder: Lessons.
								_x('shows %s with mentioned WP tag slug.', 'placeholder: Lessons', 'learndash'), ldlms_get_custom_label('lessons'))}
							value={tag || ''}
							onChange={tag => setAttributes({ tag })}
						/>

						<TextControl
							label={__('WP Tag ID', 'learndash')}
							help={sprintf(
								// translators: placeholder: Lessons.
								_x('shows %s with mentioned WP tag ID.', 'placeholder: Lessons', 'learndash'), ldlms_get_custom_label('lessons'))}
							value={tag_id || ''}
							type={'number'}
							onChange={ function( new_tag_id ) {
								if ( new_tag_id != "" && new_tag_id < 0 ) {
									setAttributes({ tag_id: "0" });
								} else {
									setAttributes({ tag_id: new_tag_id });
								}
							}}
						/>
					</PanelBody>
				);
			}

			const panel_preview = (
				<PanelBody title={__("Preview", "learndash")} initialOpen={false}>
					<ToggleControl
						label={__("Show Preview", "learndash")}
						checked={!!preview_show}
						onChange={(preview_show) => setAttributes({ preview_show })}
					/>

					<PanelRow className="learndash-block-error-message">
						{__("Preview settings are not saved.", "learndash")}
					</PanelRow>

					<TextControl
						label={__("Preview User ID", "learndash")}
						help={__("Enter a User ID to test preview", "learndash")}
						value={preview_user_id || ""}
						type={"number"}
						onChange={function (preview_new_user_id) {
							if (preview_new_user_id != "" && preview_new_user_id < 0) {
								setAttributes({ preview_user_id: "0" });
							} else {
								setAttributes({ preview_user_id: preview_new_user_id });
							}
						}}
					/>
				</PanelBody>
			);

			const inspectorControls = (
				<InspectorControls key="controls">
					{panelbody_header}
					{panel_lesson_grid_section}
					{panel_lesson_category_section}
					{panel_lesson_tag_section}
					{panel_wp_category_section}
					{panel_wp_tag_section}
					{panel_preview}
				</InspectorControls>
			);

			function get_default_message() {
				return sprintf(
					// translators: placeholder: block_title.
					_x('%s block output shown here', 'placeholder: block_title', 'learndash'), block_title
				);
			}

			function empty_response_placeholder_function(props) {
				return get_default_message();
			}

			function do_serverside_render(attributes) {
				if (attributes.preview_show == true) {
					// We add the meta so the server knowns what is being edited.
					attributes.editing_post_meta = ldlms_get_post_edit_meta();

					return <ServerSideRender
						block={block_key}
						attributes={attributes}
						key={block_key}
						EmptyResponsePlaceholder={ empty_response_placeholder_function }
					/>
				} else {
					return get_default_message();
				}
			}

		return (
			<div { ...blockProps }>
				{ inspectorControls }
				<Disabled>
					{ useMemo(() => do_serverside_render(props.attributes), [props.attributes]) }
				</Disabled>
			</div>
		);
		},

		save: props => {
			delete (props.attributes.example_show);
			delete (props.attributes.editing_post_meta);
		}
	},
);
