<?php declare(strict_types = 0);
/*
** Copyright (C) 2001-2025 Zabbix SIA
**
** This program is free software: you can redistribute it and/or modify it under the terms of
** the GNU Affero General Public License as published by the Free Software Foundation, version 3.
**
** This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
** without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
** See the GNU Affero General Public License for more details.
**
** You should have received a copy of the GNU Affero General Public License along with this program.
** If not, see <https://www.gnu.org/licenses/>.
**/


namespace Widgets\SvgGraph\Includes;

use CButton,
	CButtonIcon,
	CButtonLink,
	CCheckBox,
	CCol,
	CColorPicker,
	CDiv,
	CFormField,
	CFormGrid,
	CHorList,
	CItemHelper,
	CLabel,
	CLink,
	CList,
	CListItem,
	CPatternSelect,
	CRadioButtonList,
	CRangeControl,
	CRow,
	CScriptTag,
	CSelect,
	CSimpleButton,
	CSpan,
	CTable,
	CTableColumn,
	CTag,
	CTemplateTag,
	CTextBox,
	CVar,
	CWidgetFieldMultiSelectOverrideHostView,
	CWidgetFieldTagsView,
	CWidgetFieldView;

use Zabbix\Widgets\CWidgetField;
use Zabbix\Widgets\Fields\{
	CWidgetFieldMultiSelectOverrideHost,
	CWidgetFieldTags
};

class CWidgetFieldDataSetView extends CWidgetFieldView {

	public function __construct(CWidgetFieldDataSet $field) {
		$this->field = $field;
	}

	public function getView(): CList {
		$view = (new CList())->setId('data_sets');

		$values = $this->field->getValue();

		if (!$values) {
			$values[] = CWidgetFieldDataSet::getDefaults();
		}

		// Get item names for single item datasets.
		$itemids = [];

		foreach (array_column($values, 'itemids') as $items_spec) {
			foreach ($items_spec as $item_spec) {
				if (!is_array($item_spec)) {
					$itemids[$item_spec] = true;
				}
			}
		}

		$item_names = $itemids
			? CWidgetFieldDataSet::getItemNames(array_keys($itemids), !$this->field->isTemplateDashboard())
			: [];

		foreach ($values as $i => $value) {
			if ($value['dataset_type'] == CWidgetFieldDataSet::DATASET_TYPE_SINGLE_ITEM) {
				$value['item_names'] = $item_names;
			}

			$view->addItem(
				$this->getGraphDataSetLayout($value, $value['dataset_type'], $i == 0, $i)
			);
		}

		return $view;
	}

	public function getFooterView(): CList {
		return (new CList())
			->addClass(ZBX_STYLE_BTN_SPLIT)
			->addItem(
				(new CSimpleButton(_('Add new data set')))
					->setId('dataset-add')
					->addClass(ZBX_STYLE_BTN_ALT)
					->addClass(ZBX_ICON_PLUS_SMALL)
			)
			->addItem(
				(new CSimpleButton())
					->setId('dataset-menu')
					->addClass(ZBX_STYLE_BTN_ALT)
					->addClass(ZBX_ICON_CHEVRON_DOWN_SMALL)
			);
	}

	public function getTemplates(): array {
		$value = ['color' => '#{color}'] + CWidgetFieldDataSet::getDefaults();

		return [
			new CTemplateTag('dataset-pattern-item-tmpl',
				$this->getGraphDataSetLayout($value, CWidgetFieldDataSet::DATASET_TYPE_PATTERN_ITEM, true)
			),
			new CTemplateTag('dataset-single-item-tmpl',
				$this->getGraphDataSetLayout($value, CWidgetFieldDataSet::DATASET_TYPE_SINGLE_ITEM, true)
			),
			new CTemplateTag('dataset-item-row-tmpl', $this->getItemRowTemplate())
		];
	}

	private function getGraphDataSetLayout(array $value, int $dataset_type, bool $is_opened,
			$row_num = '#{rowNum}'): CListItem {
		$field_name = $this->field->getName();

		$dataset_head = [
			new CDiv(
				(new CButtonIcon(ZBX_ICON_CHEVRON_UP))->addClass(ZBX_STYLE_LIST_ACCORDION_ITEM_TOGGLE)
			),
			new CVar($field_name.'['.$row_num.'][dataset_type]', $dataset_type, '')
		];

		if ($dataset_type == CWidgetFieldDataSet::DATASET_TYPE_PATTERN_ITEM) {
			if ($this->field->isTemplateDashboard()) {
				$host_pattern_field = null;

				$item_pattern_field = (new CPatternSelect([
					'name' => $field_name.'['.$row_num.'][items][]',
					'object_name' => 'items',
					'data' => $value['items'],
					'placeholder' => _('item patterns'),
					'wildcard_allowed' => 1,
					'popup' => [
						'parameters' => [
							'srctbl' => 'items',
							'srcfld1' => 'name',
							'hostid' => $this->field->getTemplateId(),
							'hide_host_filter' => true,
							'numeric' => 1,
							'dstfrm' => $this->form_name,
							'dstfld1' => zbx_formatDomId($field_name.'['.$row_num.'][items][]')
						]
					],
					'add_post_js' => false
				]))->addClass('js-items-multiselect');
			}
			else {
				$host_pattern_field = (new CPatternSelect([
					'name' => $field_name.'['.$row_num.'][hosts][]',
					'object_name' => 'hosts',
					'data' => $value['hosts'],
					'placeholder' => _('host patterns'),
					'wildcard_allowed' => 1,
					'popup' => [
						'parameters' => [
							'srctbl' => 'hosts',
							'srcfld1' => 'host',
							'dstfrm' => $this->form_name,
							'dstfld1' => zbx_formatDomId($field_name.'['.$row_num.'][hosts][]')
						]
					],
					'add_post_js' => false
				]))->addClass('js-hosts-multiselect');

				$item_pattern_field = (new CPatternSelect([
					'name' => $field_name.'['.$row_num.'][items][]',
					'object_name' => 'items',
					'data' => $value['items'],
					'placeholder' => _('item patterns'),
					'wildcard_allowed' => 1,
					'popup' => [
						'parameters' => [
							'srctbl' => 'items',
							'srcfld1' => 'name',
							'real_hosts' => 1,
							'numeric' => 1,
							'resolve_macros' => 1,
							'dstfrm' => $this->form_name,
							'dstfld1' => zbx_formatDomId($field_name.'['.$row_num.'][items][]')
						],
						'filter_preselect' => [
							'id' => $host_pattern_field->getId(),
							'submit_as' => 'host_pattern',
							'submit_parameters' => [
								'host_pattern_wildcard_allowed' => 1,
								'host_pattern_multiple' => 1
							],
							'multiple' => true
						]
					],
					'autosuggest' => [
						'filter_preselect' => [
							'id' => $host_pattern_field->getId(),
							'submit_as' => 'host_pattern',
							'submit_parameters' => [
								'host_pattern_wildcard_allowed' => 1,
								'host_pattern_multiple' => 1
							],
							'multiple' => true
						]
					],
					'add_post_js' => false
				]))->addClass('js-items-multiselect');
			}

			$dataset_head[] = (new CColorPicker($field_name.'['.$row_num.'][color]',
				$field_name.'['.$row_num.'][color_palette]')
			)
				->setPalette($value['color_palette'] ?? null)
				->setColor($value['color'] ?? null);

			if ($host_pattern_field !== null) {
				$dataset_head[] = $host_pattern_field;
				$dataset_head[] = new CScriptTag($host_pattern_field->getPostJS());
			}

			$dataset_head[] = $item_pattern_field;
			$dataset_head[] = new CScriptTag($item_pattern_field->getPostJS());

			$item_tags_evaltype_field = [
				new CLabel(_('Item tags')),
				new CFormField(
					(new CRadioButtonList($field_name.'['.$row_num.'][item_tags_evaltype]',
						(int) $value['item_tags_evaltype'])
					)
						->addValue(_('And/Or'), TAG_EVAL_TYPE_AND_OR)
						->addValue(_('Or'), TAG_EVAL_TYPE_OR)
						->setModern()
				)
			];
			$item_tags_table_field = [];
			$item_tags_table_view = (new CWidgetFieldTagsView(
				(new CWidgetFieldTags($field_name.'['.$row_num.'][item_tags]'))->setValue($value['item_tags'])
			))->setFormName($this->form_name);

			foreach ($item_tags_table_view->getViewCollection() as
					['label' => $label, 'view' => $view, 'class' => $class]) {
				$item_tags_table_field[] = [$label, (new CFormField($view))->addClass($class)];
			}

			$item_tags_table_field[] = $item_tags_table_view->getTemplates();
			$item_tags_table_field[] = (new CScriptTag($item_tags_table_view->getJavaScript()))->setOnDocumentReady();
		}
		else {
			$item_rows = [];

			foreach ($value['itemids'] as $i => $item_spec) {
				if (is_array($item_spec)) {
					$itemid = '0';
					$item_reference = $item_spec[CWidgetField::FOREIGN_REFERENCE_KEY];
					$item_name = '';
				}
				else {
					$itemid = $item_spec;
					$item_reference = '';
					$item_name = array_key_exists($itemid, $value['item_names']) ? $value['item_names'][$itemid] : '';
				}

				$item_rows[] = $this->getItemRowTemplate($row_num, ($i + 1), $itemid, $item_reference, $item_name,
					$value['color'][$i]
				);
			}

			$empty_msg_block = (new CDiv(_('No item selected.')))->addClass('no-items-message');

			$items_list = (new CTable())
				->addClass('single-item-table')
				->setAttribute('data-set', $row_num)
				->setColumns([
					(new CTableColumn())->addClass('table-col-handle'),
					(new CTableColumn())->addClass('table-col-color'),
					(new CTableColumn())->addClass('table-col-no'),
					(new CTableColumn(_('Name')))->addClass('table-col-name'),
					(new CTableColumn(_('Action')))->addClass('table-col-action')
				])
				->addItem($item_rows)
				->addItem(
					(new CTag('tfoot', true,
						(new CCol(
							new CHorList([
								(new CButtonLink(_('Add item')))->addClass('js-add-item'),
								(new CButtonLink(_('Add widget')))->addClass('js-add-widget')
							])
						))->setColSpan(5)
					))
				);

			$dataset_head = array_merge($dataset_head, [
				(new CDiv([$empty_msg_block, $items_list]))->addClass('items-list table-forms-separator')
			]);

			$item_tags_evaltype_field = null;
			$item_tags_table_field = null;
		}

		$dataset_head[] = (new CDiv(
			(new CButtonIcon(ZBX_ICON_REMOVE_SMALLER, _('Delete')))->addClass('js-remove')
		))->addClass('list-item-actions');

		$override_host_html = [];

		if (!$this->field->isTemplateDashboard()) {
			$override_host_field =
				(new CWidgetFieldMultiSelectOverrideHost($field_name.'['.$row_num.'][override_hostid]'))
					->setValue($value['override_hostid']);

			$override_host_field_view = (new CWidgetFieldMultiSelectOverrideHostView($override_host_field))
				->setFormName($this->form_name)
				->setWidth(null);

			foreach ($override_host_field_view->getViewCollection() as
					['label' => $label, 'view' => $view, 'class' => $class]) {
				$override_host_html[] = $label;
				$override_host_html[] = (new CFormField($view))
					->addClass($class)
					->addClass('override-host-field-view');
			}

			$override_host_html[] = implode('', $override_host_field_view->getTemplates());
			$override_host_html[] = new CScriptTag($override_host_field_view->getJavaScript());
		}

		return (new CListItem([
			(new CDiv())
				->addClass(ZBX_STYLE_DRAG_ICON)
				->addClass('js-main-drag-icon'),
			(new CLabel(''))->addClass('js-dataset-label'),
			(new CDiv())
				->addClass(ZBX_STYLE_LIST_ACCORDION_ITEM_HEAD)
				->addClass('dataset-head')
				->addItem($dataset_head),
			(new CDiv())
				->addClass(ZBX_STYLE_LIST_ACCORDION_ITEM_BODY)
				->addClass('dataset-body')
				->addItem([
					(new CFormGrid())
						->addItem([
							new CLabel(_('Draw'), $field_name.'['.$row_num.'][type]'),
							new CFormField(
								(new CRadioButtonList($field_name.'['.$row_num.'][type]', (int) $value['type']))
									->addClass('js-type')
									->addValue(_('Line'), SVG_GRAPH_TYPE_LINE)
									->addValue(_('Points'), SVG_GRAPH_TYPE_POINTS)
									->addValue(_('Staircase'), SVG_GRAPH_TYPE_STAIRCASE)
									->addValue(_('Bar'), SVG_GRAPH_TYPE_BAR)
									->setModern()
							)
						])
						->addItem([
							new CLabel(_('Stacked'), $field_name.'['.$row_num.'][stacked]'),
							new CFormField([
								(new CVar($field_name.'['.$row_num.'][stacked]', '0'))->removeId(),
								(new CCheckBox($field_name.'['.$row_num.'][stacked]'))
									->addClass('js-stacked')
									->setChecked((bool) $value['stacked'])
									->setEnabled($value['type'] != SVG_GRAPH_TYPE_POINTS)
							])
						])
						->addItem([
							new CLabel(_('Width'), $field_name.'['.$row_num.'][width]'),
							new CFormField(
								(new CRangeControl($field_name.'['.$row_num.'][width]', (int) $value['width']))
									->setEnabled(!in_array($value['type'], [SVG_GRAPH_TYPE_POINTS, SVG_GRAPH_TYPE_BAR]))
									->setWidth(ZBX_TEXTAREA_MEDIUM_WIDTH)
									->setStep(1)
									->setMin(0)
									->setMax(10)
							)
						])
						->addItem([
							new CLabel(_('Point size'), $field_name.'['.$row_num.'][pointsize]'),
							new CFormField(
								(new CRangeControl($field_name.'['.$row_num.'][pointsize]', (int) $value['pointsize']))
									->setEnabled($value['type'] == SVG_GRAPH_TYPE_POINTS)
									->setWidth(ZBX_TEXTAREA_MEDIUM_WIDTH)
									->setStep(1)
									->setMin(1)
									->setMax(10)
							)
						])
						->addItem([
							new CLabel(_('Transparency'), $field_name.'['.$row_num.'][transparency]'),
							new CFormField(
								(new CRangeControl($field_name.'['.$row_num.'][transparency]',
									(int) $value['transparency'])
								)
									->setWidth(ZBX_TEXTAREA_MEDIUM_WIDTH)
									->setStep(1)
									->setMin(0)
									->setMax(10)
							)
						])
						->addItem([
							new CLabel(_('Fill'), $field_name.'['.$row_num.'][fill]'),
							new CFormField(
								(new CRangeControl($field_name.'['.$row_num.'][fill]', (int) $value['fill']))
									->setEnabled(!in_array($value['type'], [SVG_GRAPH_TYPE_POINTS, SVG_GRAPH_TYPE_BAR]))
									->setWidth(ZBX_TEXTAREA_MEDIUM_WIDTH)
									->setStep(1)
									->setMin(0)
									->setMax(10)
							)
						])
						->addItem([
							new CLabel(_('Missing data'), $field_name.'['.$row_num.'][missingdatafunc]'),
							new CFormField(
								(new CRadioButtonList($field_name.'['.$row_num.'][missingdatafunc]',
									(int) $value['missingdatafunc'])
								)
									->addValue(_('None'), SVG_GRAPH_MISSING_DATA_NONE)
									->addValue(_x('Connected', 'missing data function'),
										SVG_GRAPH_MISSING_DATA_CONNECTED
									)
									->addValue(_x('Treat as 0', 'missing data function'),
										SVG_GRAPH_MISSING_DATA_TREAT_AS_ZERO
									)
									->addValue(_x('Last known', 'missing data function'),
										SVG_GRAPH_MISSING_DATA_LAST_KNOWN
									)
									->setEnabled(!in_array($value['type'], [SVG_GRAPH_TYPE_POINTS, SVG_GRAPH_TYPE_BAR]))
									->setModern()
							)
						])
						->addItem($override_host_html),
					(new CFormGrid())
						->addItem([
							new CLabel(_('Y-axis'), $field_name.'['.$row_num.'][axisy]'),
							new CFormField(
								(new CRadioButtonList($field_name.'['.$row_num.'][axisy]', (int) $value['axisy']))
									->addValue(_('Left'), GRAPH_YAXIS_SIDE_LEFT)
									->addValue(_('Right'), GRAPH_YAXIS_SIDE_RIGHT)
									->setModern()
							)
						])
						->addItem([
							new CLabel(_('Time shift'), $field_name.'['.$row_num.'][timeshift]'),
							new CFormField(
								(new CTextBox($field_name.'['.$row_num.'][timeshift]', $value['timeshift']))
									->setWidth(ZBX_TEXTAREA_TINY_WIDTH)
									->setAttribute('placeholder', _('none'))
							)
						])
						->addItem([
							new CLabel(_('Aggregation function'),
								'label-'.$field_name.'_'.$row_num.'_aggregate_function'
							),
							new CFormField(
								(new CSelect($field_name.'['.$row_num.'][aggregate_function]'))
									->setId($field_name.'_'.$row_num.'_aggregate_function')
									->setFocusableElementId('label-'.$field_name.'_'.$row_num.'_aggregate_function')
									->setValue((int) $value['aggregate_function'])
									->addOptions(CSelect::createOptionsFromArray([
										AGGREGATE_NONE => CItemHelper::getAggregateFunctionName(AGGREGATE_NONE),
										AGGREGATE_MIN => CItemHelper::getAggregateFunctionName(AGGREGATE_MIN),
										AGGREGATE_MAX => CItemHelper::getAggregateFunctionName(AGGREGATE_MAX),
										AGGREGATE_AVG => CItemHelper::getAggregateFunctionName(AGGREGATE_AVG),
										AGGREGATE_COUNT => CItemHelper::getAggregateFunctionName(AGGREGATE_COUNT),
										AGGREGATE_SUM => CItemHelper::getAggregateFunctionName(AGGREGATE_SUM),
										AGGREGATE_FIRST => CItemHelper::getAggregateFunctionName(AGGREGATE_FIRST),
										AGGREGATE_LAST => CItemHelper::getAggregateFunctionName(AGGREGATE_LAST)
									]))
									->setWidth(ZBX_TEXTAREA_TINY_WIDTH)
							)
						])
						->addItem([
							new CLabel(_('Aggregation interval'), $field_name.'['.$row_num.'][aggregate_interval]'),
							new CFormField(
								(new CTextBox($field_name.'['.$row_num.'][aggregate_interval]',
									$value['aggregate_interval']
								))
									->setEnabled($value['aggregate_function'] != AGGREGATE_NONE)
									->setWidth(ZBX_TEXTAREA_TINY_WIDTH)
									->setAttribute('placeholder', GRAPH_AGGREGATE_DEFAULT_INTERVAL)
							)
						])
						->addItem([
							new CLabel(_('Aggregate'), $field_name.'['.$row_num.'][aggregate_grouping]'),
							new CFormField(
								(new CRadioButtonList($field_name.'['.$row_num.'][aggregate_grouping]',
									(int) $value['aggregate_grouping'])
								)
									->addValue(_('Each item'), GRAPH_AGGREGATE_BY_ITEM)
									->addValue(_('Data set'), GRAPH_AGGREGATE_BY_DATASET)
									->setEnabled($value['aggregate_function'] != AGGREGATE_NONE)
									->setModern()
							)
						])
						->addItem([
							new CLabel(_('Approximation'), 'label-'.$field_name.'_'.$row_num.'_approximation'),
							new CFormField(
								(new CSelect($field_name.'['.$row_num.'][approximation]'))
									->setId($field_name.'_'.$row_num.'_approximation')
									->setFocusableElementId('label-'.$field_name.'_'.$row_num.'_approximation')
									->setValue((int) $value['approximation'])
									->addOptions(CSelect::createOptionsFromArray([
										APPROXIMATION_ALL => [
											'label' => _('all'),
											'disabled' => $value['type'] != SVG_GRAPH_TYPE_LINE || $value['stacked']
										],
										APPROXIMATION_MIN => _('min'),
										APPROXIMATION_AVG => _('avg'),
										APPROXIMATION_MAX => _('max')
									]))
									->setWidth(ZBX_TEXTAREA_TINY_WIDTH)
							)
						])
						->addItem([
							new CLabel([
								_('Data set label'),
								makeHelpIcon(_('Also used as legend label for aggregated data sets.'))
							], $field_name.'_'.$row_num.'_data_set_label'),
							new CFormField(
								(new CTextBox($field_name.'['.$row_num.'][data_set_label]', $value['data_set_label']))
									->setId($field_name.'_'.$row_num.'_data_set_label')
									->setWidth(ZBX_TEXTAREA_MEDIUM_WIDTH)
							)
						])
						->addItem($item_tags_evaltype_field)
						->addItem($item_tags_table_field)
				])
		]))
			->addClass(ZBX_STYLE_LIST_ACCORDION_ITEM)
			->addClass($is_opened ? ZBX_STYLE_LIST_ACCORDION_ITEM_OPENED : ZBX_STYLE_LIST_ACCORDION_ITEM_CLOSED)
			->setAttribute('data-set', $row_num)
			->setAttribute('data-type', $dataset_type);
	}

	private function getItemRowTemplate($ds_num = '#{dsNum}', $row_num = '#{rowNum}', $itemid = '#{itemid}',
			$reference = '#{reference}', $name = '#{name}', $color = '#{color}'): CRow {
		return (new CRow([
			(new CCol((new CDiv())->addClass(ZBX_STYLE_DRAG_ICON)))
				->addClass('table-col-handle')
				->addClass(ZBX_STYLE_TD_DRAG_ICON),
			(new CCol(
				(new CColorPicker($this->field->getName().'['.$ds_num.'][color][]'))->setColor($color)
			))->addClass('table-col-color'),
			(new CCol(new CSpan($row_num.':')))->addClass('table-col-no'),
			(new CCol([
				(new CSpan())
					->addClass('reference-hint')
					->addClass(ZBX_ICON_REFERENCE)
					->addClass(ZBX_STYLE_DISPLAY_NONE)
					->setHint(_('Another widget is used as data source.')),
				(new CLink($name))
					->setId('items_'.$ds_num.'_'.$row_num.'_name')
					->addClass('js-click-expand')
			]))->addClass('table-col-name'),
			(new CCol([
				(new CButton('button', _('Remove')))
					->addClass(ZBX_STYLE_BTN_LINK)
					->addClass('element-table-remove')
					->addClass('js-remove-item'),
				new CVar($this->field->getName().'['.$ds_num.'][itemids][]', $itemid,
					'items_'.$ds_num.'_'.$row_num.'_itemid'
				),
				new CVar($this->field->getName().'['.$ds_num.'][references][]', $reference,
					'items_'.$ds_num.'_'.$row_num.'_reference'
				)
			]))
				->addClass('table-col-action')
				->addClass(ZBX_STYLE_NOWRAP)
		]))->addClass('single-item-table-row');
	}
}