<?php
/*
** Zabbix
** Copyright (C) 2001-2023 Zabbix SIA
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** 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 General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
**/

require_once dirname(__FILE__) . '/../../include/CWebTest.php';
require_once dirname(__FILE__).'/../traits/TagTrait.php';
require_once dirname(__FILE__).'/../behaviors/CMessageBehavior.php';

/**
 * @backup widget, profiles
 *
 * @onBefore setDefaultWidgetType
 */
class testDashboardGraphWidget extends CWebTest {

	use TagTrait;

	/**
	 * Attach MessageBehavior to the test.
	 *
	 * @return array
	 */
	public function getBehaviors() {
		return [CMessageBehavior::class];
	}

	/*
	 * SQL query to get widget and widget_field tables to compare hash values, but without widget_fieldid
	 * because it can change.
	 */
	private $sql = 'SELECT wf.widgetid, wf.type, wf.name, wf.value_int, wf.value_str, wf.value_groupid, wf.value_hostid,'.
			' wf.value_itemid, wf.value_graphid, wf.value_sysmapid, w.widgetid, w.dashboard_pageid, w.type, w.name, w.x, w.y,'.
			' w.width, w.height'.
			' FROM widget_field wf'.
			' INNER JOIN widget w'.
			' ON w.widgetid=wf.widgetid ORDER BY wf.widgetid, wf.name, wf.value_int, wf.value_str, wf.value_groupid,'.
			' wf.value_itemid, wf.value_graphid';

	/*
	 * Set "Graph" as default widget type.
	 */
	public function setDefaultWidgetType() {
		DBexecute('DELETE FROM profiles WHERE idx=\'web.dashboard.last_widget_type\' AND userid=\'1\'');
		DBexecute('INSERT INTO profiles (profileid, userid, idx, value_str, type)'.
				' VALUES (99999,1,\'web.dashboard.last_widget_type\',\'svggraph\',3)');
	}

	/**
	 * Open dashboard and add/edit graph widget.
	 *
	 * @param string $name		name of graphic widget to be opened
	 */
	private function openGraphWidgetConfiguration($name = null) {
		$dashboard = CDashboardElement::find()->one()->edit();

		// Open existed widget by widget name.
		if ($name) {
			$widget = $dashboard->getWidget($name);
			$this->assertEquals(true, $widget->isEditable());
			$form = $widget->edit();
		}
		// Add new graph widget.
		else {
			$overlay = $dashboard->addWidget();
			$form = $overlay->asForm();
		}

		return $form;
	}

	/**
	 * Save dashboard and check added/updated graph widget.
	 *
	 * @param string $name		name of graphic widget to be checked
	 */
	private function saveGraphWidget($name) {
		$dashboard = CDashboardElement::find()->one();
		$widget = $dashboard->getWidget($name);
		$widget->query('xpath://div[contains(@class, "is-loading")]')->waitUntilNotPresent();
		$widget->getContent()->query('class:svg-graph')->waitUntilVisible();
		$dashboard->save();
		$message = CMessageElement::find()->waitUntilPresent()->one();
		$this->assertTrue($message->isGood());
		$this->assertEquals('Dashboard updated', $message->getTitle());
	}

	/*
	 * Check screenshots of graph widget form.
	 * @browsers chrome
	 */
	public function testDashboardGraphWidget_FormLayout() {
		$this->page->login()->open('zabbix.php?action=dashboard.view&dashboardid=1030');
		$dashboard = CDashboardElement::find()->one()->edit();
		$overlay = $dashboard->addWidget();
		$form = $overlay->asForm();
		$element = $overlay->query('id:svg-graph-preview')->one();

		$tabs = ['Data set', 'Displaying options', 'Time period', 'Axes', 'Legend', 'Problems', 'Overrides'];
		foreach ($tabs as $tab) {
			$form->selectTab($tab);
			if ($tab === 'Overrides') {
				$button = $form->query('button:Add new override')->one()->click();
				// Remove border radius from button element.
				$this->page->getDriver()->executeScript('arguments[0].style.borderRadius=0;', [$button]);
			}

			$this->page->removeFocus();
			sleep(1);
			$this->assertScreenshotExcept($overlay, [$element], 'tab_'.$tab);
		}
	}

	/**
	 * Check validation of graph widget fields.
	 */
	private function validate($data, $tab) {
		$old_hash = CDBHelper::getHash($this->sql);

		$this->page->login()->open('zabbix.php?action=dashboard.view&dashboardid=1030');
		$form = $this->openGraphWidgetConfiguration(CTestArrayHelper::get($data, 'Widget name'));

		$this->fillDatasets(CTestArrayHelper::get($data, 'Data set'));

		switch ($tab) {
			case 'Data set':
				// Remove data set.
				if (CTestArrayHelper::get($data, 'remove_data_set', false)) {
					$form->query('xpath:.//button['.CXPathHelper::fromClass('js-remove').']')->one()->click();
				}
				break;

			case 'Overrides':
				$form->selectTab($tab);
				$this->fillOverrides(CTestArrayHelper::get($data, 'Overrides'));

				// Remove all override options.
				if (CTestArrayHelper::get($data, 'remove_override_options', false)) {
					$form->query("xpath:.//ul[@class='overrides-options-list']//button[".
							CXPathHelper::fromClass('js-remove')."]")->all()->click();
				}

				break;

			default:
				$form->selectTab($tab);
				$form->fill($data[$tab]);
		}

		sleep(2);
		$form->submit();
		COverlayDialogElement::find()->one()->waitUntilReady()->query('xpath:div[@class="overlay-dialogue-footer"]'.
				'//button[@class="dialogue-widget-save"]')->waitUntilClickable()->one();

		if (array_key_exists('error', $data)) {
			$this->assertMessage(TEST_BAD, null, $data['error']);
		}

		$this->assertEquals($old_hash, CDBHelper::getHash($this->sql));
	}

	public static function getDatasetValidationData() {
		return [
			[
				[
					'remove_data_set' => true,
					'error' => 'Invalid parameter "Data set": cannot be empty.'
				]
			],
			// Base color field validation.
			[
				[
					'Data set' => [
						[
							'xpath://button[@id="lbl_ds_0_color"]/..' => ''
						]
					],
					'error' => 'Invalid parameter "Data set/1/color": cannot be empty.'
				]
			],
			[
				[
					'Data set' => [
						[
							'xpath://button[@id="lbl_ds_0_color"]/..' => '00000!'
						]
					],
					'error' => 'Invalid parameter "Data set/1/color": a hexadecimal color code (6 symbols) is expected.'
				]
			],
			[
				[
					'Data set' => [
						[
							'xpath://button[@id="lbl_ds_0_color"]/..' => '00000 '
						]
					],
					'error' => 'Invalid parameter "Data set/1/color": a hexadecimal color code (6 symbols) is expected.'
				]
			],
			// Time shift field validation.
			[
				[
					'Data set' => [
						[
							'Time shift' => 'abc',
							'Draw' => 'Points'
						]
					],
					'error' => 'Invalid parameter "Data set/1/timeshift": a time unit is expected.'
				]
			],
			[
				[
					'Data set' => [
						[
							'Time shift' => '5.2'
						]
					],
					'error' => 'Invalid parameter "Data set/1/timeshift": a time unit is expected.'
				]
			],
			[
				[
					'Data set' => [
						[
							'Time shift' => '10000d'
						]
					],
					'error' => 'Invalid parameter "Data set/1/timeshift": value must be one of -788400000-788400000.'
				]
			],
			[
				[
					'Data set' => [
						[
							'Time shift' => '999999999999999999999999999'
						]
					],
					'error' => 'Invalid parameter "Data set/1/timeshift": a number is too large.'
				]
			],
			// Aggregation interval validation.
			[
				[
					'Data set' => [
						[
							'Aggregation function' => 'min',
							'Aggregation interval' => 'abc'
						]
					],
					'error' => 'Invalid parameter "Data set/1/aggregate_interval": a time unit is expected.'
				]
			],
			[
				[
					'Data set' => [
						[
							'Aggregation function' => 'max',
							'Aggregation interval' =>  '5.2'
						]
					],
					'error' => 'Invalid parameter "Data set/1/aggregate_interval": a time unit is expected.'
				]
			],
			[
				[
					'Data set' => [
						[
							'Aggregation function' => 'avg',
							'Aggregation interval' => '0'
						]
					],
					'error' => 'Invalid parameter "Data set/1/aggregate_interval": value must be one of 1-788400000.'
				]
			],
			[
				[
					'Data set' => [
						[
							'Aggregation function' => 'count',
							'Aggregation interval' => '10000d'
						]
					],
					'error' => 'Invalid parameter "Data set/1/aggregate_interval": value must be one of 1-788400000.'
				]
			],
			[
				[
					'Data set' => [
						[
							'Aggregation function' => 'sum',
							'Aggregation interval' => '999999999999999999999999999'
						]
					],
					'error' => 'Invalid parameter "Data set/1/aggregate_interval": a number is too large.'
				]
			],
			// Validation of second data set.
			[
				[
					'Data set' => [
						[],
						[
							'Time shift' => '5'
						]
					],
					'error' => 'Invalid parameter "Data set/2/hosts": cannot be empty.'
				]
			],
			[
				[
					'Data set' => [
						[],
						[
							'item' => 'test',
							'Time shift' => '5'
						]
					],
					'error' => 'Invalid parameter "Data set/2/hosts": cannot be empty.'
				]
			],
			[
				[
					'Data set' => [
						[],
						[
							'host' => 'test'
						]
					],
					'error' => 'Invalid parameter "Data set/2/items": cannot be empty.'
				]
			],
			[
				[
					'Data set' => [
						[],
						[
							'host' => 'Zabbix*',
							'item' => 'Agent ping',
							'xpath://button[@id="lbl_ds_1_color"]/..' => '00000 '
						]
					],
					'error' => 'Invalid parameter "Data set/2/color": a hexadecimal color code (6 symbols) is expected.'
				]
			],
			[
				[
					'Data set' => [
						[],
						[
							'host' => '*',
							'item' => '*',
							'Time shift' => 'abc',
							'Draw' => 'Points'
						]
					],
					'error' => 'Invalid parameter "Data set/2/timeshift": a time unit is expected.'
				]
			],
			[
				[
					'Data set' => [
						[],
						[
							'host' => '*',
							'item' => '*',
							'Aggregation function' => 'first',
							'Aggregation interval' => 'abc'
						]
					],
					'error' => 'Invalid parameter "Data set/2/aggregate_interval": a time unit is expected.'
				]
			]
		];
	}

	/*
	 * Data provider for "Data set" tab validation on creating.
	 */
	public function getDatasetValidationCreateData() {
		$data = [];

		// Add host and item values for the first "Data set" in each case of the data provider.
		foreach ($this->getDataSetValidationData() as $item) {
			if (array_key_exists('Data set', $item[0])) {
				$item[0]['Data set'][0] = array_merge($item[0]['Data set'][0], [
					'host' => 'ЗАББИКС Сервер',
					'item' => 'Agent ping'
				]);
			}

			$data[] = $item;
		}

		// Add additional test cases to data provider.
		return array_merge($data, [
			// Empty host and/or item field.
			[
				[
					'error' => 'Invalid parameter "Data set/1/hosts": cannot be empty.'
				]
			],
			[
				[
					'Data set' => [
						'item' => '*'
					],
					'error' => 'Invalid parameter "Data set/1/hosts": cannot be empty.'
				]
			],
			[
				[
					'Data set' => [
						'host' => '*'
					],
					'error' => 'Invalid parameter "Data set/1/items": cannot be empty.'
				]
			]
		]);
	}

	/*
	 * Data provider for "Data set" tab validation on updating.
	 */
	public function getDatasetValidationUpdateData() {
		$data = [];

		// Add existing widget name for each case in data provider.
		foreach ($this->getDataSetValidationData() as $item) {
			$item[0]['Widget name'] = 'Test cases for update';

			$data[] = $item;
		}

		// Add additional validation cases.
		return array_merge($data, [
			[
				[
					'Widget name' => 'Test cases for update',
					'Data set' => [
						'host' => '',
						'item' => ''
					],
					'error' => 'Invalid parameter "Data set/1/hosts": cannot be empty.'
				]
			],
			[
				[
					'Widget name' => 'Test cases for update',
					'Data set' => [
						'host' => '',
						'item' => '*'
					],
					'error' => 'Invalid parameter "Data set/1/hosts": cannot be empty.'
				]
			],
			[
				[
					'Widget name' => 'Test cases for update',
					'Data set' => [
						'host' => '*',
						'item' => ''
					],
					'error' => 'Invalid parameter "Data set/1/items": cannot be empty.'
				]
			]
		]);
	}

	/**
	 * Check validation of "Data set" tab.
	 *
	 * @dataProvider getDatasetValidationCreateData
	 * @dataProvider getDatasetValidationUpdateData
	 */
	public function testDashboardGraphWidget_DatasetValidation($data) {
		$this->validate($data, 'Data set');
	}

	public static function getTimePeriodValidationData() {
		return [
			// Empty From/To fields.
			[
				[
					'Time period' => [
						'Set custom time period' => true,
						'From' => '',
						'To' => ''
					],
					'error' => [
						'Invalid parameter "From": cannot be empty.',
						'Invalid parameter "To": cannot be empty.'
					]
				]
			],
			[
				[
					'Time period' => [
						'Set custom time period' => true,
						'From' => '2021-07-04 15:53:07',
						'To' => ''
					],
					'error' => 'Invalid parameter "To": cannot be empty.'
				]
			],
			[
				[
					'Time period' => [
						'Set custom time period' => true,
						'From' => '',
						'To' => '2021-07-04 15:53:07'
					],
					'error' => [
						'Invalid parameter "From": cannot be empty.',
						'Minimum time period to display is 1 minute.'
					]
				]
			],
			// Date format validation (YYYY-MM-DD HH-MM-SS)
			[
				[
					'Time period' => [
						'Set custom time period' => true,
						'From' => '1',
						'To' => '2021-07-04 15:53:07'
					],
					'error' => [
						'Invalid parameter "From": a time is expected.',
						'Minimum time period to display is 1 minute.'
					]
				]
			],
			[
				[
					'Time period' => [
						'Set custom time period' => true,
						'From' => '2021-07-04 15:53:07',
						'To' => 'abc'
					],
					'error' => 'Invalid parameter "To": a time is expected.'
				]
			],
			[
				[
					'Time period' => [
						'Set custom time period' => true,
						'From' => '5:53:06 2021-07-31',
						'To' => '2021-07-04 15:53:07'
					],
					'error' => [
						'Invalid parameter "From": a time is expected.',
						'Minimum time period to display is 1 minute.'
					]
				]
			],
			[
				[
					'Time period' => [
						'Set custom time period' => true,
						'From' => '2021-02-30 00:00:00',
						'To' => '2021-07-04 15:53:07'
					],
					'error' => [
						'Invalid parameter "From": a time is expected.',
						'Minimum time period to display is 1 minute.'
					]
				]
			],
			[
				[
					'Time period' => [
						'Set custom time period' => true,
						'From' => '2021-05-02 00:00:00',
						'To' => '2021-25-09 00:00:00'
					],
					'error' => 'Invalid parameter "To": a time is expected.'
				]
			],
			[
				[
					'Time period' => [
						'Set custom time period' => true,
						'From' => '2021-05-02 00:00:00',
						'To' => '2021.07.31 15:53:07'
					],
					'error' => 'Invalid parameter "To": a time is expected.'
				]
			],
			[
				[
					'Time period' => [
						'Set custom time period' => true,
						'From' => '2021-07-04 12:53:00',
						'To' => 'now-s'
					],
					'error' => 'Invalid parameter "To": a time is expected.'
				]
			],
			// Time range validation
			[
				[
					'Time period' => [
						'Set custom time period' => true,
						'From' => '2021-07-04 12:53:00',
						'To' => '2021-07-04 12:52:59'
					],
					'error' => 'Minimum time period to display is 1 minute.'
				]
			],
			[
				[
					'Time period' => [
						'Set custom time period' => true,
						'From' => '2027-07-04 12:53:00',
						'To' => 'now'
					],
					'error' => 'Minimum time period to display is 1 minute.'
				]
			],
			[
				[
					'Time period' => [
						'Set custom time period' => true,
						'From' => 'now-58s',
						'To' => 'now'
					],
					'error' => 'Minimum time period to display is 1 minute.'
				]
			]
		];
	}

	public function getTimePeriodValidationCreateData() {
		$data = [];

		// Add host and item values for each case in data provider.
		foreach ($this->getTimePeriodValidationData() as $item) {
			$item[0]['Data set'] = [
				'host' => 'ЗАББИКС Сервер',
				'item' => 'Agent ping'
			];

			$data[] = $item;
		}

		return $data;
	}

	public function getTimePeriodValidationUpdateData() {
		$data = [];

		foreach ($this->getTimePeriodValidationData() as $item) {
			$item[0]['Widget name'] = 'Test cases for update';

			$data[] = $item;
		}

		return $data;
	}

	/**
	 * Check validation of "Time period" tab.
	 *
	 * @dataProvider getTimePeriodValidationCreateData
	 * @dataProvider getTimePeriodValidationUpdateData
	 */
	public function testDashboardGraphWidget_TimePeriodValidation($data) {
		$this->validate($data, 'Time period');
	}

	public static function getAxesValidationData() {
		return [
			// Left Y-axis validation. Set by default in first data set.
			[
				[
					'Axes' => [
						'id:lefty_min' => 'abc'
					],
					'error' => 'Invalid parameter "Left Y/Min": a number is expected.'
				]
			],
			[
				[
					'Axes' => [
						'id:lefty_max' => 'abc'
					],
					'error' => 'Invalid parameter "Left Y/Max": a number is expected.'
				]
			],
			[
				[
					'Axes' => [
						'id:lefty_min' => '10',
						'id:lefty_max' => '5'
					],
					'error' => 'Invalid parameter "Left Y/Max": Y axis MAX value must be greater than Y axis MIN value.'
				]
			],
			[
				[
					'Axes' => [
						'id:lefty_min' => '-5',
						'id:lefty_max' => '-10'
					],
					'error' => 'Invalid parameter "Left Y/Max": Y axis MAX value must be greater than Y axis MIN value.'
				]
			],
			// Change default Y-axis option on Right.
			[
				[
					'Data set' => [
						[
							'Y-axis' => 'Right'
						]
					],
					'Axes' => [
						'id:righty_min' => 'abc'
					],
					'error' => 'Invalid parameter "Right Y/Min": a number is expected.'
				]
			],
			[
				[
					'Data set' => [
						[
							'Y-axis' => 'Right'
						]
					],
					'Axes' => [
						'id:righty_max' => 'abc'
					],
					'error' => 'Invalid parameter "Right Y/Max": a number is expected.'
				]
			],
			[
				[
					'Data set' => [
						[
							'Y-axis' => 'Right'
						]
					],
					'Axes' => [
						'id:righty_min' => '10',
						'id:righty_max' => '5'
					],
					'error' => 'Invalid parameter "Right Y/Max": Y axis MAX value must be greater than Y axis MIN value.'
				]
			],
			[
				[
					'Data set' => [
						[
							'Y-axis' => 'Right'
						]
					],
					'Axes' => [
						'id:righty_min' => '-5',
						'id:righty_max' => '-10'
					],
					'error' => 'Invalid parameter "Right Y/Max": Y axis MAX value must be greater than Y axis MIN value.'
				]
			],
			// Both axes validation.
			[
				[
					'Data set' => [
						[
							'Y-axis' => 'Right'
						],
						[
							'host' => 'ЗАББИКС Сервер',
							'item' => 'Agent ping',
							'Y-axis' => 'Left'
						]
					],
					'Axes' => [
						'id:lefty_max' => 'abc',
						'id:righty_max' => 'abc'
					],
					'error' => [
						'Invalid parameter "Left Y/Max": a number is expected.',
						'Invalid parameter "Right Y/Max": a number is expected.'
					]
				]
			],
			[
				[
					'Data set' => [
						[
							'Y-axis' => 'Right'
						],
						[
							'host' => 'ЗАББИКС Сервер',
							'item' => 'Agent ping',
							'Y-axis' => 'Left'
						]
					],
					'Axes' => [
						'id:lefty_min' => '-5',
						'id:lefty_max' => '-10',
						'id:righty_min' => '10',
						'id:righty_max' => '5'
					],
					'error' => [
						'Invalid parameter "Left Y/Max": Y axis MAX value must be greater than Y axis MIN value.',
						'Invalid parameter "Right Y/Max": Y axis MAX value must be greater than Y axis MIN value.'
					]
				]
			],
			[
				[
					'Data set' => [
						[
							'Y-axis' => 'Right'
						],
						[
							'host' => 'ЗАББИКС Сервер',
							'item' => 'Agent ping',
							'Y-axis' => 'Left'
						]
					],
					'Axes' => [
						'id:lefty_min' => 'abc',
						'id:lefty_max' => 'def',
						'id:righty_min' => '!@#',
						'id:righty_max' => '('
					],
					'error' => [
						'Invalid parameter "Left Y/Min": a number is expected.',
						'Invalid parameter "Left Y/Max": a number is expected.',
						'Invalid parameter "Right Y/Min": a number is expected.',
						'Invalid parameter "Right Y/Max": a number is expected.'
					]
				]
			]
		];
	}

	/*
	 * Add host and item values in data provider.
	 */
	public function getAxesValidationCreateData() {
		$data = [];

		foreach ($this->getAxesValidationData() as $item) {
			if (array_key_exists('Data set', $item[0])) {
				$item[0]['Data set'][0] = array_merge($item[0]['Data set'][0], [
					'host' => 'ЗАББИКС Сервер',
					'item' => 'Agent ping'
				]);
			}
			else {
				$item[0]['Data set'] = [
					'host' => 'ЗАББИКС Сервер',
					'item' => 'Agent ping'
				];
			}

			$data[] = $item;
		}

		return $data;
	}

	public function getAxesValidationUpdateData() {
		$data = [];

		foreach ($this->getAxesValidationData() as $item) {
			$item[0]['Widget name'] = 'Test cases for simple update and deletion';

			$data[] = $item;
		}

		return $data;
	}

	/**
	 * Check "Axes" tab validation.
	 *
	 * @dataProvider getAxesValidationCreateData
	 * @dataProvider getAxesValidationUpdateData
	 */
	public function testDashboardGraphWidget_AxesValidation($data) {
		$this->validate($data, 'Axes');
	}

	public static function getOverridesValidationData() {
		return [
			// Base color field validation.
			[
				[
					'Overrides' => [
						[
							'options' => [
								'Base color'
							]
						]
					],
					'error' => 'Invalid parameter "Overrides/1/color": cannot be empty.'
				]
			],
			[
				[
					'Overrides' => [
						[
							'color' => '00000!',
							'options' => [
								'Base color'
							]
						]
					],
					'error' => 'Invalid parameter "Overrides/1/color": a hexadecimal color code (6 symbols) is expected.'
				]
			],
			[
				[
					'Overrides' => [
						[
							'color' => '00000 ',
							'options' => [
								'Base color'
							]
						]
					],
					'error' => 'Invalid parameter "Overrides/1/color": a hexadecimal color code (6 symbols) is expected.'
				]
			],
			// Time shift field validation.
			[
				[
					'Overrides' => [
						[
							'options' => [
								'Time shift'
							]
						]
					],
					'error' => 'Invalid parameter "Overrides/1/timeshift": cannot be empty.'
				]
			],
			[
				[
					'Overrides' => [
						[
							'time_shift' => 'abc',
							'options' => [
								'Time shift'
							]
						]
					],
					'error' => 'Invalid parameter "Overrides/1/timeshift": a time unit is expected.'
				]
			],
			[
				[
					'Overrides' => [
						[
							'time_shift' => '5.2',
							'options' => [
								'Time shift'
							]
						]
					],
					'error' => 'Invalid parameter "Overrides/1/timeshift": a time unit is expected.'
				]
			],
			[
				[
					'Overrides' => [
						[
							'time_shift' => '10000d',
							'options' => [
								'Time shift'
							]
						]
					],
					'error' => 'Invalid parameter "Overrides/1/timeshift": value must be one of -788400000-788400000.'
				]
			],
			[
				[
					'Overrides' => [
						[
							'time_shift' => '999999999999999999999999999',
							'options' => [
								'Time shift'
							]
						]
					],
					'error' => 'Invalid parameter "Overrides/1/timeshift": a number is too large.'
				]
			],
			// Validation of second override set.
			[
				[
					'Overrides' => [
						[
							'options' => [
								['Width', '5']
							]
						],
						[
							'options' => [
								['Width', '10']
							]
						]
					],
					'error' => 'Invalid parameter "Overrides/2/hosts": cannot be empty.'
				]
			],
			[
				[
					'Overrides' => [
						[
							'options' => [
								['Width', '5']
							]
						],
						[
							'item' => 'Two item',
							'options' => [
								['Width', '10']
							]
						]
					],
					'error' => 'Invalid parameter "Overrides/2/hosts": cannot be empty.'
				]
			],
			[
				[
					'Overrides' => [
						[
							'options' => [
								['Width', '5']
							]
						],
						[
							'host' => 'Two host',
							'options' => [
								['Width', '10']
							]
						]
					],
					'error' => 'Invalid parameter "Overrides/2/items": cannot be empty.'
				]
			],
			[
				[
					'Overrides' => [
						[
							'options' => [
								['Width', '5']
							]
						],
						[
							'host' => 'Two host',
							'item' => 'Two item'
						]
					],
					'error' => 'Invalid parameter "Overrides/2": at least one override option must be specified.'
				]
			],
			[
				[
					'Overrides' => [
						[
							'options' => [
								['Width', '5']
							]
						],
						[
							'host' => 'Two host',
							'item' => 'Two item',
							'options' => [
								'Base color'
							]
						]
					],
					'error' => 'Invalid parameter "Overrides/2/color": cannot be empty.'
				]
			],
			[
				[
					'Overrides' => [
						[
							'options' => [
								['Width', '5']
							]
						],
						[
							'host' => 'Two host',
							'item' => 'Two item',
							'time_shift' => 'abc',
							'options' => [
								'Time shift'
							]
						]
					],
					'error' => 'Invalid parameter "Overrides/2/timeshift": a time unit is expected.'
				]
			]
		];
	}

	/*
	 * Data provider for "Overrides" tab validation on creating.
	 */
	public function getOverridesValidationCreateData() {
		$data = [];

		// Add host and item values for tab "Data set" and "Overrides" for each data provider.
		foreach ($this->getOverridesValidationData() as $item) {
			$item[0]['Data set'] = [
				'host' => 'ЗАББИКС Сервер',
				'item' => 'Agent ping'
			];
			$item[0]['Overrides'][0] = array_merge($item[0]['Overrides'][0], [
				'host' => 'One host',
				'item' => 'One item'
			]);

			$data[] = $item;
		}

		return array_merge($data, [
			[
				[
					'Data set' => [
						'host' => 'ЗАББИКС Сервер',
						'item' => 'Agent ping'
					],
					'Overrides' => [
						'item' => '*'
					],
					'error' => 'Invalid parameter "Overrides/1/hosts": cannot be empty.'
				]
			],
			[
				[
					'Data set' => [
						'host' => 'ЗАББИКС Сервер',
						'item' => 'Agent ping'
					],
					'Overrides' => [
						'host' => '*'
					],
					'error' => 'Invalid parameter "Overrides/1/items": cannot be empty.'
				]
			],
			[
				[
					'Data set' => [
						'host' => 'ЗАББИКС Сервер',
						'item' => 'Agent ping'
					],
					'Overrides' => [
						'host' => '*',
						'item' => '*'
					],
					'error' => 'Invalid parameter "Overrides/1": at least one override option must be specified.'
				]
			]
		]);
	}

	/*
	 * Data provider for "Overrides" tab validation on updating.
	 */
	public function getOverridesValidationUpdateData() {
		$data = [];

		// Add existing widget name for each case in data provider.
		foreach ($this->getOverridesValidationData() as $item) {
			$item[0]['Widget name'] = 'Test cases for update';

			$data[] = $item;
		}

		// Add additional validation cases.
		return array_merge($data, [
			[
				[
					'Widget name' => 'Test cases for update',
					'remove_override_options' => true,
					'error' => 'Invalid parameter "Overrides/1": at least one override option must be specified.'
				]
			],
			[
				[
					'Widget name' => 'Test cases for update',
					'Overrides' => [
						'host' => '',
						'item' => ''
					],
					'error' => 'Invalid parameter "Overrides/1/hosts": cannot be empty.'
				]
			],
			[
				[
					'Widget name' => 'Test cases for update',
					'Overrides' => [
						'host' => ''
					],
					'error' => 'Invalid parameter "Overrides/1/hosts": cannot be empty.'
				]
			],
			[
				[
					'Widget name' => 'Test cases for update',
					'Overrides' => [
						'item' => ''
					],
					'error' => 'Invalid parameter "Overrides/1/items": cannot be empty.'
				]
			]
		]);
	}

	/**
	 * Check "Overrides" tab validation.
	 *
	 * @dataProvider getOverridesValidationCreateData
	 * @dataProvider getOverridesValidationUpdateData
	 */
	public function testDashboardGraphWidget_OverridesValidation($data) {
		$this->validate($data, 'Overrides');
	}

	public static function getCreateData() {
		return [
			// Mandatory fields only.
			[
				[
					'Data set' => [
						'host' => '*',
						'item' => '*'
					],
					'check_form' => true
				]
			],
			// Press button "Add new override", but left override fields empty.
			[
				[
					'Data set' => [
						'host' => 'Add override',
						'item' => 'Override empty fields'
					],
					'Overrides' => []
				]
			],
			// Comma in host and item name.
			[
				[
					'main_fields' => [
						'Name' => 'Comma in host/item names'
					],
					'Data set' => [
						[
							'host' => 'Zabbix,Server',
							'item' => 'Agent, Ping',
							'Aggregation function' => 'min',
							'Aggregate' => 'Data set',
							'Data set label' => '祝你今天過得愉快'
						],
						[
							'host' => ',Zabbix Server',
							'item' => ',Agentp ping',
							'Draw' => 'Bar',
							'Aggregation function' => 'max',
							'Data set label' => 'Bar ping'
						],
						[
							'host' => ',Zabbix, Server,',
							'item' => 'Zabbix configuration cache, % used',
							'Aggregation function' => 'count',
							'Aggregation interval' => '24h'
						]
					],
					'Overrides' => [
						[
							'host' => 'Zabbix,Server',
							'item' => 'Agent,Ping',
							'options' => [
								['Draw', 'Bar'],
								['Missing data', 'Treat as 0']
							]
						],
						[
							'host' => ',Zabbix Server',
							'item' => ', Agent ping',
							'options' => [
								['Draw', 'Bar']
							]
						],
						[
							'host' => ',,Zabbix Server,,',
							'item' => ', Agent, ping,',
							'options' => [
								['Draw', 'Bar']
							]
						]
					],
					'check_form' => true
				]
			],
			/* Add Width, Fill and Missing data fields in overrides, which are disabled in data set tab.
			 * Fill enabled right Y-axis fields.
			 */
			[
				[
					'main_fields' => [
						'Name' => 'Test graph widget',
						'Refresh interval' => '10 seconds'
					],
					'Data set' => [
						'host' => ['Zabbix*', 'one', 'two'],
						'item' => ['Agent*', 'one', 'two'],
						'Draw' => 'Bar',
						'Y-axis' => 'Right'
					],
					'Time period' => [
						'Set custom time period' => true,
						'From' => 'now-1w',
						'To' => 'now'
					],
					'Axes' => [
						'id:righty_min' => '-15',
						'id:righty_max' => '155.5',
						'id:righty_units' => 'Static',
						'id:righty_static_units' => 'MB'
					],
					'Overrides' => [
						'host' => 'One host',
						'item' => 'One item',
						'options' => [
							['Width', '2'],
							['Fill', '2'],
							['Missing data', 'None']
						]
					],
					'check_form' => true
				]
			],
			/* Boundary values.
			 * Creation with disabled axes and legend. Enabled Problems, but empty fields in problems tab.
			 */
			[
				[
					'main_fields' => [
						'Name' => 'Test boundary values',
						'Refresh interval' => '10 minutes'
					],
					'Data set' => [
						[
							'host' => '*',
							'item' => '*',
							'Width' => '0',
							'Transparency' => '0',
							'Fill' => '0',
							'Missing data' => 'Treat as 0',
							'Time shift' => '-788400000'
						],
						[
							'host' => 'Two host',
							'item' => 'Two item',
							'Y-axis' => 'Right',
							'Width' => '10',
							'Transparency' => '10',
							'Fill' => '10',
							'Missing data' => 'Connected',
							'Time shift' => '788400000',
							'Aggregation function' => 'sum',
							'Aggregation interval' => '788400000'
						]
					],
					'Displaying options' => [
						'History data selection' => 'Trends'
					],
					'Time period' => [
						'Set custom time period' => true,
						'From' => 'now-59s',
						'To' => 'now'
					],
					'Axes' => [
						'Left Y' => false,
						'Right Y' => false,
						'X-Axis' => false
					],
					'Legend' => [
						'Show legend' => false
					],
					'Problems' => [
						'fields' => [
							'Show problems' => true
						]
					],
					'Overrides' => [
						'host' => 'One host',
						'item' => 'One item',
						'time_shift' => '788400000',
						'options' => [
							'Time shift',
							['Draw', 'Staircase'],
							['Missing data', 'Treat as 0']
						]
					],
					'check_form' => true
				]
			],
			// All possible fields.
			[
				[
					'main_fields' => [
						'Name' => 'Graph widget with all filled fields',
						'Refresh interval' => 'No refresh'
					],
					'Data set' => [
						[
							'host' => 'One host',
							'item' => 'One item',
							'Draw' => 'Staircase',
							'Width' => '10',
							'Transparency' => '10',
							'Fill' => '10',
							'Missing data' => 'Connected',
							'Time shift' => '0',
							'Aggregation function' => 'last',
							'Aggregation interval' => '1',
							'Aggregate' => 'Data set',
							'xpath://button[@id="lbl_ds_0_color"]/..' => '009688',
							'Data set label' => 'Staircase graph'
						],
						[
							'host' => 'Two host',
							'item' => 'Two item',
							'Y-axis' => 'Right',
							'Draw' => 'Points',
							'Point size' => '1',
							'Transparency' => '0',
							'Time shift' => '-1s',
							'xpath://button[@id="lbl_ds_1_color"]/..' => '000000'
						]
					],
					'Displaying options' => [
						'History data selection' => 'History'
					],
					'Time period' => [
						'Set custom time period' => true,
						'From' => '2018-11-15',
						'To' => '2018-11-15 14:20:00'
					],
					'Axes' => [
						'id:lefty_min' => '5',
						'id:lefty_max' => '15.5',
						'id:righty_min' => '-15',
						'id:righty_max' => '-5',
						'id:lefty_units' => 'Static',
						'id:lefty_static_units' => 'MB',
						'id:righty_units' => 'Static'
					],
					'Legend' => [
						'Number of rows' => '5'
					],
					'Problems' => [
						'fields' => [
							'Show problems' => true,
							'Selected items only' => false,
							'Problem hosts' => ['Simple form test host'],
							'Severity' => ['Information', 'Average'],
							'Problem' => '2_trigger_*',
							'Problem tags' => 'Or'
						],
						'tags' => [
							['name' => 'server', 'value' => 'selenium', 'operator' => 'Equals'],
							['name' => 'Street', 'value' => 'dzelzavas']
						]
					],
					'Overrides' => [
						[
							'host' => 'One host',
							'item' => 'One item',
							'time_shift' => '-5s',
							'color' => '000000',
							'options' => [
								'Base color',
								['Width', '0'],
								['Draw', 'Line'],
								['Transparency', '0'],
								['Fill', '0'],
								['Point size', '1'],
								['Missing data', 'None'],
								['Y-axis', 'Right'],
								'Time shift'
							]
						],
						[
							'host' => 'Two host',
							'item' => 'Two item',
							'time_shift' => '5s',
							'color' => 'FFFFFF',
							'options' => [
								'Base color',
								['Width', '1'],
								['Draw', 'Points'],
								['Transparency', '2'],
								['Fill', '3'],
								['Point size', '4'],
								['Missing data', 'Connected'],
								['Y-axis', 'Left'],
								'Time shift'
							]
						]
					],
					'check_form' => true
				]
			]
		];
	}

	/**
	 * Check graph widget successful creation.
	 *
	 * @dataProvider getCreateData
	 */
	public function testDashboardGraphWidget_Create($data) {
		$this->page->login()->open('zabbix.php?action=dashboard.view&dashboardid=1030');
		$form = $this->openGraphWidgetConfiguration();

		$this->fillForm($data, $form);
		$form->parents('class:overlay-dialogue-body')->one()->query('tag:output')->asMessage()->waitUntilNotVisible();
		$form->submit();
		$this->saveGraphWidget(CTestArrayHelper::get($data, 'main_fields.Name', 'Graph'));

		// Check values in created widget.
		if (CTestArrayHelper::get($data, 'check_form', false)) {
			$this->openGraphWidgetConfiguration(CTestArrayHelper::get($data, 'main_fields.Name', 'Graph'));
			$this->checkWidgetForm($data);
		}
	}

	public static function getUpdateData() {
		return [
			// Mandatory fields only.
			[
				[
					'Data set' => [
						'host' => 'updated*',
						'item' => '*updated'
					],
					'check_form' => true
				]
			],
			/* Add Width, Fill and Missing data fields in overrides, which are disabled in data set tab.
			 * Fill fields for enabled right Y-axis.
			 */
			[
				[
					'main_fields' => [
						'Refresh interval' => '10 seconds'
					],
					'Data set' => [
						'host' => ['Zabbix*', 'update', 'two'],
						'item' => ['Agent*', 'update', 'two'],
						'Draw' => 'Points',
						'Y-axis' => 'Right'
					],
					'Time period' => [
						'Set custom time period' => true,
						'From' => 'now-1w',
						'To' => 'now'
					],
					'Axes' => [
						'id:righty_min' => '-15',
						'id:righty_max' => '155.5',
						'id:righty_units' => 'Static',
						'id:righty_static_units' => 'MB'
					],
					'Overrides' => [
						'host' => 'One host',
						'item' => 'One item',
						'options' => [
							['Width', '2'],
							['Fill', '2'],
							['Point size', '5'],
							['Missing data', 'None']
						]
					],
					'check_form' => true
				]
			],
			/* Boundary values.
			 * Update with disabled axes and legend. Enabled Problems, but left empty fields in problems tab.
			 */
			[
				[
					'main_fields' => [
						'Refresh interval' => '10 minutes'
					],
					'Data set' => [
						[
							'host' => '*',
							'item' => '*',
							'Draw' => 'Line',
							'Y-axis' => 'Left',
							'Width' => '0',
							'Transparency' => '0',
							'Fill' => '0',
							'Missing data' => 'Treat as 0',
							'Time shift' => '-788400000',
							'Aggregation function' => 'avg',
							'Aggregation interval' => '788400000'
						],
						[
							'host' => 'Two host',
							'item' => 'Two item',
							'Y-axis' => 'Right',
							'Width' => '10',
							'Transparency' => '10',
							'Fill' => '10',
							'Missing data' => 'Connected',
							'Time shift' => '788400000'
						]
					],
					'Displaying options' => [
						'History data selection' => 'Trends'
					],
					'Time period' => [
						'Set custom time period' => true,
						'From' => 'now-59s',
						'To' => 'now'
					],
					'Axes' => [
						'Left Y' => false,
						'Right Y' => false,
						'X-Axis' => false
					],
					'Legend' => [
						'Show legend' => false
					],
					'Problems' => [
						'fields' => [
							'Show problems' => true
						]
					],
					'check_form' => true
				]
			],
			// Comma in host and item name.
			[
				[
					'Data set' => [
						[
							'host' => 'Zabbix,Server',
							'item' => 'Agent, Ping',
							'Aggregation function' => 'min',
							'Aggregate' => 'Data set'
						],
						[
							'host' => ',Zabbix Server',
							'item' => ',Agentp ping',
							'Draw' => 'Bar',
							'Aggregation function' => 'max'
						],
						[
							'host' => ',Zabbix, Server,',
							'item' => 'Zabbix configuration cache, % used',
							'Aggregation function' => 'count',
							'Aggregation interval' => '24h'
						]
					],
					'Overrides' => [
						[
							'host' => 'Zabbix,Server',
							'item' => 'Agent,Ping',
							'options' => [
								['Point size', '5']
							]
						],
						[
							'host' => ',Zabbix Server',
							'item' => ', Agent ping',
							'options' => [
								['Point size', '5'],
								['Draw', 'Bar']
							]
						],
						[
							'host' => ',,Zabbix Server,,',
							'item' => ', Agent, ping,',
							'options' => [
								['Draw', 'Bar']
							]
						]
					],
					'check_form' => true
				]
			],
			// All possible fields.
			[
				[
					'main_fields' => [
						'Name' => 'Update graph widget with all filled fields',
						'Refresh interval' => 'No refresh'
					],
					'Data set' => [
						[
							'host' => 'One host',
							'item' => 'One item',
							'Y-axis' => 'Left',
							'Draw' => 'Staircase',
							'Width' => '10',
							'Transparency' => '10',
							'Fill' => '10',
							'Missing data' => 'Connected',
							'Time shift' => '0',
							'xpath://button[@id="lbl_ds_0_color"]/..' => '009688'
						],
						[
							'host' => 'Two host',
							'item' => 'Two item',
							'Y-axis' => 'Right',
							'Draw' => 'Bar',
							'Transparency' => '10',
							'Transparency' => '0',
							'Time shift' => '-1s',
							'Aggregation function' => 'avg',
							'Aggregation interval' => '5h',
							'Aggregate' => 'Data set',
							'xpath://button[@id="lbl_ds_1_color"]/..' => '000000'
						]
					],
					'Displaying options' => [
						'History data selection' => 'History'
					],
					'Time period' => [
						'Set custom time period' => true,
						'From' => '2018-11-15',
						'To' => '2018-11-15 14:20'
					],
					'Axes' => [
						'Left Y' => true,
						'Right Y' => true,
						'X-Axis' => true,
						'id:lefty_min' => '5',
						'id:lefty_max' => '15.5',
						'id:righty_min' => '-15',
						'id:righty_max' => '-5',
						'id:lefty_units' => 'Static',
						'id:lefty_static_units' => 'MB',
						'id:righty_units' => 'Static'
					],
					'Legend' => [
						'Show legend' => true,
						'Number of rows' => '5'
					],
					'Problems' => [
						'fields' => [
							'Show problems' => true,
							'Selected items only' => false,
							'Problem hosts' => ['Simple form test host', 'ЗАББИКС Сервер'],
							'Severity' => ['Information', 'Average'],
							'Problem' => '2_trigger_*',
							'Problem tags' => 'Or'
						],
						'tags' => [
							['name' => 'server', 'value' => 'selenium', 'operator' => 'Equals'],
							['name' => 'Street', 'value' => 'dzelzavas']
						]
					],
					'Overrides' => [
						[
							'host' => 'One host',
							'item' => 'One item',
							'time_shift' => '-5s',
							'color' => '000000',
							'options' => [
								'Base color',
								['Width', '0'],
								['Draw', 'Line'],
								['Transparency', '0'],
								['Fill', '0'],
								['Point size', '1'],
								['Missing data', 'None'],
								['Y-axis', 'Right'],
								'Time shift'
							]
						],
						[
							'host' => 'Two host',
							'item' => 'Two item',
							'time_shift' => '5s',
							'color' => 'FFFFFF',
							'options' => [
								'Base color',
								['Width', '1'],
								['Draw', 'Bar'],
								['Transparency', '2'],
								['Fill', '3'],
								['Point size', '4'],
								['Missing data', 'Connected'],
								['Y-axis', 'Left'],
								'Time shift'
							]
						]
					],
					'check_form' => true
				]
			]
		];
	}

	/**
	 * Check graph widget successful update.
	 *
	 * @dataProvider getUpdateData
	 * @backup widget
	 */
	public function testDashboardGraphWidget_Update($data) {
		$this->page->login()->open('zabbix.php?action=dashboard.view&dashboardid=1030');
		$form = $this->openGraphWidgetConfiguration('Test cases for update');

		$this->fillForm($data, $form);
		$form->parents('class:overlay-dialogue-body')->one()->query('tag:output')->asMessage()->waitUntilNotVisible();
		$form->submit();
		COverlayDialogElement::ensureNotPresent();
		$this->saveGraphWidget(CTestArrayHelper::get($data, 'main_fields.Name', 'Test cases for update'));

		// Check values in updated widget.
		if (CTestArrayHelper::get($data, 'check_form', false)) {
			$this->openGraphWidgetConfiguration(CTestArrayHelper::get($data, 'main_fields.Name', 'Test cases for update'));
			$this->checkWidgetForm($data);
		}
	}

	/**
	 * Test update without any modification of graph widget data.
	 */
	public function testDashboardGraphWidget_SimpleUpdate() {
		$name = 'Test cases for simple update and deletion';
		$old_hash = CDBHelper::getHash($this->sql);

		$this->page->login()->open('zabbix.php?action=dashboard.view&dashboardid=1030');
		$form = $this->openGraphWidgetConfiguration($name);
		$form->submit();
		COverlayDialogElement::ensureNotPresent();
		$this->saveGraphWidget($name);

		$this->assertEquals($old_hash, CDBHelper::getHash($this->sql));
	}

	/**
	 * Fill graph widget form with provided data.
	 *
	 * @param array $data		data provider with fields values
	 * @param array $form		CFormElement
	 */
	private function fillForm($data, $form) {
		$form->fill(CTestArrayHelper::get($data, 'main_fields', []));
		$this->fillDatasets(CTestArrayHelper::get($data, 'Data set', []));

		$tabs = ['Displaying options', 'Time period', 'Axes', 'Legend', 'Problems', 'Overrides'];
		foreach ($tabs as $tab) {
			if (!array_key_exists($tab, $data)) {
				continue;
			}

			$form->selectTab($tab);
			switch ($tab) {
				case 'Problems':
					$form->fill(CTestArrayHelper::get($data['Problems'], 'fields', []));
					if (array_key_exists('tags', $data['Problems'])) {
						$this->setTagSelector('id:tags_table_tags');
						$this->setTags($data['Problems']['tags']);
					}
					break;

				case 'Overrides':
					$this->fillOverrides($data['Overrides']);
					break;

				default:
					$form->fill($data[$tab]);
					break;
			}
		}
	}

	/**
	 * Fill "Data sets" with specified data.
	 */
	private function fillDatasets($data_sets) {
		$form = $this->query('id:widget-dialogue-form')->asForm()->one();
		if ($data_sets) {
			if (CTestArrayHelper::isAssociative($data_sets)) {
				$data_sets = [$data_sets];
			}

			$last = count($data_sets) - 1;
			// Amount of data sets on frontend.
			$count_sets = $form->query('xpath://li[contains(@class, "list-accordion-item")]')->all()->count();

			foreach ($data_sets as $i => $data_set) {
				$mapping = [
					'host' => 'xpath://div[@id="ds_'.$i.'_hosts_"]/..',
					'item' => 'xpath://div[@id="ds_'.$i.'_items_"]/..'
				];
				// If host or item of data set exist in data provider, add the xpath selector and value from data provider to them.
				foreach ($mapping as $field => $selector) {
					if (array_key_exists($field, $data_set)) {
						$data_set = [$selector => $data_set[$field]] + $data_set;
						unset($data_set[$field]);
					}
				}

				$form->fill($data_set);

				// Open next dataset, if it exists on frontend.
				if ($i !== $last) {
					if ($i + 1 < $count_sets) {
						$i += 2;
						$form->query('xpath:(//li[contains(@class, "list-accordion-item")])['.$i.']//button')->one()->click();
					}
					// Press "Add new data set" button, except for last data set.
					else {
						$form->query('button:Add new data set')->one()->click();
					}

					$form->invalidate();
				}
			}
		}
	}

	/**
	 * Fill "Overrides" with specified data.
	 */
	private function fillOverrides($overrides) {
		$form = $this->query('id:widget-dialogue-form')->asForm()->one();

		// Check if override already exist in list, if not, add new override.
		$items = $form->query('class:overrides-list-item')->all();
		if ($items->count() === 0) {
			$form->query('button:Add new override')->one()->click();
		}

		if ($overrides) {
			if (CTestArrayHelper::isAssociative($overrides)) {
				$overrides = [$overrides];
			}

			$last = count($overrides) - 1;

			foreach ($overrides as $i => $override) {
				// Prepare non-standard fields.
				$mapping = [
					'options' => [
						'selector' => 'xpath://button[@data-row='.CXPathHelper::escapeQuotes($i).']',
						'class' => CPopupButtonElement::class
					],
					'host' => [
						'selector' => 'xpath://div[@id="or_'.$i.'_hosts_"]/..',
						'class' => CMultiselectElement::class
					],
					'item' => [
						'selector' => 'xpath://div[@id="or_'.$i.'_items_"]/..',
						'class' => CMultiselectElement::class
					],
					'time_shift' => 'name:or['.$i.'][timeshift]',
					'color' => [
						'selector' => 'xpath://button[@id="lbl_or_'.$i.'__color_"]/..',
						'class' => CColorPickerElement::class
					]
				];

				foreach ($mapping as $field => $item) {
					if (!array_key_exists($field, $override)) {
						continue;
					}

					if (!is_array($item)) {
						$item = ['selector' => $item, 'class' => CElement::class];
					}

					$form->query($item['selector'])->cast($item['class'])->one()->fill($override[$field]);
				}

				// Press "Add new override" button, except for last override set and if in data provider exist only one set.
				if ($i !== $last) {
					$form->query('button:Add new override')->one()->click();
				}
			}
		}
	}

	/**
	 * Check widget field values after creating or updating.
	 */
	private function checkWidgetForm($data) {
		$form = $this->query('id:widget-dialogue-form')->asForm()->one();

		// Check values in "Data set" tab.
		if (CTestArrayHelper::isAssociative($data['Data set'])) {
			$data['Data set'] = [$data['Data set']];
		}

		$last = count($data['Data set']) - 1;

		foreach ($data['Data set'] as $i => $data_set) {
			// Prepare host and item fields.
			$mapping = [
				'host' => 'xpath://div[@id="ds_'.$i.'_hosts_"]/..',
				'item' => 'xpath://div[@id="ds_'.$i.'_items_"]/..'
			];
			foreach ($mapping as $field => $selector) {
				$data_set = [$selector => $data_set[$field]] + $data_set;
				unset($data_set[$field]);
			}

			// Check fields value.
			$form->checkValue($data_set);

			// Open next data set, if exist.
			if ($i !== $last) {
				$i += 2;
				$form->query('xpath:(//li[contains(@class, "list-accordion-item")])['.$i.']//button')->one()->click();
				$form->invalidate();
			}
		}

		// Check values in 'Displaying options', 'Time period', 'Axes' and 'Legend' tabs
		$tabs = ['Displaying options', 'Time period', 'Axes', 'Legend'];
		foreach ($tabs as $tab) {
			if (array_key_exists($tab, $data)) {
				$form->selectTab($tab);
				$form->checkValue($data[$tab]);
			}
		}

		// Check values in Problems tab.
		if (array_key_exists('Problems', $data)) {
			$form->selectTab('Problems');
			$form->checkValue(CTestArrayHelper::get($data, 'Problems.fields', []));

			if (array_key_exists('tags', $data['Problems'])) {
				$this->assertTags($data['Problems']['tags'], 'id:tags_table_tags');
			}
		}

		// Check values in Overrides tab.
		if (array_key_exists('Overrides', $data)) {
			$form->selectTab('Overrides');
			if (CTestArrayHelper::isAssociative($data['Overrides'])) {
				$data['Overrides'] = [$data['Overrides']];
			}

			foreach ($data['Overrides'] as $i => $override) {
				// Prepare input fields.
				$mapping = [
					'host' => 'xpath://div[@id="or_'.$i.'_hosts_"]/..',
					'item' => 'xpath://div[@id="or_'.$i.'_items_"]/..',
					'time_shift' => 'name:or['.$i.'][timeshift]',
					'color' => 'xpath://button[@id="lbl_or_'.$i.'__color_"]/..'
				];
				$inputs = [];
				foreach ($mapping as $field => $selector) {
					if (!array_key_exists($field, $override)) {
						continue;
					}
					$inputs[$selector] = $override[$field];
				}

				// Check fields value.
				$form->checkValue($inputs);

				// Check values of override options in data provider and in widget, except color and time shift fields.
				if (array_key_exists('options', $override)) {
					$i++;
					$list = $this->query('xpath:(//ul[@class="overrides-options-list"])['.$i.']')->one();
					$options = $list->query('xpath:.//span[@data-option]')->all();
					$options_text = $options->asText();

					// Check number of override options in data provider and in widget.
					$values = array_filter($override['options'], function ($option) {
						return (is_array($option) && count($option) === 2);
					});
					$this->assertEquals(count($values), $options->count());

					foreach ($override['options'] as $option) {
						if (is_array($option) && count($option) === 2) {
							$this->assertContains(implode(': ', $option), $options_text);
						}
					}
				}
			}
		}
	}

	public static function getDashboardCancelData() {
		return [
			// Add new graph widget.
			[
				[
					'main_fields' => [
						'Name' => 'Add new graph widget and cancel dashboard update'
					],
					'Data set' => [
						'host' => 'Zabbix*, new widget',
						'item' => 'Agetn*, new widget'
					]
				]
			],
			// Update existing graph widget.
			[
				[
					'Existing widget' => 'Test cases for simple update and deletion',
					'main_fields' => [
						'Name' => 'Update graph widget and cancel dashboard'
					],
					'Data set' => [
						'host' => 'Update widget, cancel dashboard update',
						'item' => 'Update widget'
					]
				]
			]
		];
	}

	/**
	 * Update existing widget or create new and cancel dashboard update.
	 *
	 * @dataProvider getDashboardCancelData
	 */
	public function testDashboardGraphWidget_cancelDashboardUpdate($data) {
		$old_hash = CDBHelper::getHash($this->sql);

		$this->page->login()->open('zabbix.php?action=dashboard.view&dashboardid=1030');
		$form = $this->openGraphWidgetConfiguration(CTestArrayHelper::get($data, 'Existing widget', []));
		$form->fill(CTestArrayHelper::get($data, 'main_fields', []));
		$this->fillDataSets($data['Data set']);
		$form->submit();

		// Check added or updated graph widget.
		$dashboard = CDashboardElement::find()->one();
		$widget = $dashboard->getWidget(CTestArrayHelper::get($data, 'main_fields.Name', 'Graph'));
		$widget->getContent()->query('class:svg-graph')->waitUntilVisible();

		$dashboard->cancelEditing();

		$this->assertEquals($old_hash, CDBHelper::getHash($this->sql));
	}

	public static function getWidgetCancelData() {
		return [
			// Add new graph widget.
			[
				[
					'main_fields' => [
						'Name' => 'Cancel widget create'
					],
					'Data set' => [
						'host' => 'Cancel create',
						'item' => 'Cancel create'
					]
				]
			],
			// Update existing graph widget.
			[
				[
					'Existing widget' => 'Test cases for simple update and deletion',
					'main_fields' => [
						'Name' => 'Cancel widget update'
					],
					'Data set' => [
						'host' => 'Cancel update',
						'item' => 'Cancel update'
					]
				]
			]
		];
	}

	/**
	 * Cancel update of existing widget or cancel new widget creation and save dashboard.
	 *
	 * @dataProvider getDashboardCancelData
	 */
	public function testDashboardGraphWidget_cancelWidgetEditing($data) {
		$old_hash = CDBHelper::getHash($this->sql);

		$this->page->login()->open('zabbix.php?action=dashboard.view&dashboardid=1030');
		$form = $this->openGraphWidgetConfiguration(CTestArrayHelper::get($data, 'Existing widget', []));
		$form->fill($data['main_fields']);
		$this->fillDataSets($data['Data set']);
		$overlay = $this->query('xpath://div[contains(@class, "overlay-dialogue")][@data-dialogueid="widget_properties"]')
						->asOverlayDialog()->one();
		$overlay->close();

		// Check canceled graph widget.
		$dashboard = CDashboardElement::find()->one();
		// If test fails and widget isn't canceled, need to wait until widget appears on the dashboard.
		sleep(2);
		$this->assertTrue(!$dashboard->query('xpath:.//div[contains(@class, "dashboard-grid-widget-header")]/h4[text()='.
				CXPathHelper::escapeQuotes($data['main_fields']['Name']).']')->one(false)->isValid());
		$dashboard->save();

		$this->assertEquals($old_hash, CDBHelper::getHash($this->sql));
	}

	/**
	 * Test deleting of graph widget.
	 */
	public function testDashboardGraphWidget_Delete() {
		$name = 'Test cases for simple update and deletion';

		$this->page->login()->open('zabbix.php?action=dashboard.view&dashboardid=1030');
		$dashboard = CDashboardElement::find()->one();
		$widget = $dashboard->edit()->getWidget($name);
		$this->assertEquals(true, $widget->isEditable());
		$dashboard->deleteWidget($name);

		$dashboard->save();
		$this->page->waitUntilReady();
		$message = CMessageElement::find()->waitUntilPresent()->one();
		$this->assertTrue($message->isGood());
		$this->assertEquals('Dashboard updated', $message->getTitle());

		// Check that widget is not present on dashboard and in DB.
		$this->assertTrue(!$dashboard->getWidget($name, false)->isValid());
		$sql = 'SELECT * FROM widget_field wf LEFT JOIN widget w ON w.widgetid=wf.widgetid'.
				' WHERE w.name='.zbx_dbstr($name);
		$this->assertEquals(0, CDBHelper::getCount($sql));
	}

	/**
	 * Test disabled fields in "Data set" tab.
	 */
	public function testDashboardGraphWidget_DatasetDisabledFields() {
		$this->page->login()->open('zabbix.php?action=dashboard.view&dashboardid=1030');
		$form = $this->openGraphWidgetConfiguration();

		foreach (['Line', 'Points', 'Staircase', 'Bar'] as $option) {
			$form->fill(['Draw' => $option]);

			// Check the disabled fields depending on selected Draw option.
			switch ($option) {
				case 'Line':
				case 'Staircase':
					$fields = ['Point size'];
					break;

				case 'Points':
					$fields = ['Width', 'Fill', 'Missing data'];
					break;

				case 'Bar':
					$fields = ['Width', 'Fill', 'Point size', 'Missing data'];
					break;
			}

			$this->assertEnabledFields($fields, false);
		}

		$fields = ['Aggregation interval', 'Aggregate'];
		$this->assertEnabledFields($fields, false);
		$form->fill(['Aggregation function' => 'min']);
		$this->assertEnabledFields($fields, true);
	}

	/*
	 * Test "From" and "To" fields in tab "Time period" by check/uncheck "Set custom time period".
	 */
	public function testDashboardGraphWidget_TimePeriodDisabledFields() {
		$this->page->login()->open('zabbix.php?action=dashboard.view&dashboardid=1030');
		$form = $this->openGraphWidgetConfiguration();
		$form->selectTab('Time period');

		$fields = ['From', 'To'];
		$this->assertEnabledFields($fields, false);

		$form->fill(['Set custom time period' => true]);
		$this->assertEnabledFields($fields, true);
	}

	/*
	 * Test enable/disable "Number of rows" field by check/uncheck "Show legend".
	 */
	public function testDashboardGraphWidget_LegendDisabledFields() {
		$this->page->login()->open('zabbix.php?action=dashboard.view&dashboardid=1030');
		$form = $this->openGraphWidgetConfiguration();
		$form->selectTab('Legend');
		$this->assertEnabledFields('Number of rows');
		$form->fill(['Show legend' => false]);
		$this->assertEnabledFields('Number of rows', false);
	}

	public function testDashboardGraphWidget_ProblemsDisabledFields() {
		$this->page->login()->open('zabbix.php?action=dashboard.view&dashboardid=1030');
		$form = $this->openGraphWidgetConfiguration();
		$form->selectTab('Problems');

		$fields = ['Selected items only', 'Severity', 'Problem', 'Problem tags', 'Problem hosts'];
		$tag_elements = [
			'id:evaltype',				// Tag type.
			'id:tags_0_tag',			// Tag name.
			'id:tags_0_operator',		// Tag operator.
			'id:tags_0_value',			// Tag value
			'id:tags_0_remove',			// Tag remove button.
			'id:tags_add'				// Tagg add button.
		];
		$this->assertEnabledFields(array_merge($fields, $tag_elements), false);

		// Set "Show problems" and check that fields enabled now.
		$form->fill(['Show problems' => true]);
		$this->assertEnabledFields(array_merge($fields, $tag_elements), true);
	}

	public static function getAxesDisabledFieldsData() {
		return [
			[
				[
					'Data set' => [
						'Y-axis' => 'Right'
					]
				]
			],
			[
				[
					'Data set' => [
						'Y-axis' => 'Left'
					]
				]
			],
			// Both Y-axis are enabled, if in data set selected Left axis, but in Overrides selected Right.
			[
				[
					'Data set' => [
						'Y-axis' => 'Right'
					],
					'Overrides' => [
						'options' => [
							['Y-axis', 'Left']
						]
					]
				]
			],
			[
				[
					'Data set' => [
						'Y-axis' => 'Left'
					],
					'Overrides' => [
						'options' => [
							['Y-axis', 'Right']
						]
					]
				]
			]
		];
	}

	/**
	 * Check that the axes fields are disabled depending on the selected axis in Data set and in Overrides.
	 *
	 * @dataProvider getAxesDisabledFieldsData
	 */
	public function testDashboardGraphWidget_AxesDisabledFields($data) {
		$this->page->login()->open('zabbix.php?action=dashboard.view&dashboardid=1030');
		$form = $this->openGraphWidgetConfiguration();

		$form->fill($data['Data set']);
		$axis = $data['Data set']['Y-axis'];

		if (array_key_exists('Overrides', $data)) {
			$axis = 'Both';
			$form->selectTab('Overrides');
			$this->fillOverrides($data['Overrides']);
		}

		$form->selectTab('Axes');
		$lefty_fields = ['id:lefty', 'id:lefty_min', 'id:lefty_max', 'id:lefty_units'];
		$righty_fields = ['id:righty', 'id:righty_min', 'id:righty_max', 'id:righty_units'];

		switch ($axis) {
			case 'Right':
				$lefty_fields[] = 'id:lefty_static_units';
				$this->assertEnabledFields($lefty_fields, false);
				$this->assertEnabledFields($righty_fields, true);
				$this->assertFalse($this->query('id:righty_static_units')->one()->isEnabled());
				break;

			case 'Left':
				$righty_fields[] = 'id:righty_static_units';
				$this->assertEnabledFields($lefty_fields, true);
				$this->assertEnabledFields($righty_fields, false);
				$this->assertFalse($this->query('id:lefty_static_units')->one()->isEnabled());
				break;

			case 'Both';
				$this->assertEnabledFields($lefty_fields, true);
				$this->assertEnabledFields($righty_fields, true);
				$this->assertFalse($this->query('id:righty_static_units')->one()->isEnabled());
				$this->assertFalse($this->query('id:lefty_static_units')->one()->isEnabled());
				break;
		}
	}

	/**
	 * Check data set naming in legend and in configuration form.
	 */
	public function testDashboardGraphWidget_CheckDataSetNaming() {
		$input_data = [
			'main_fields' => [
				'Name' => 'Graph widget for Data set naming check'
			],
			'Data set' => [
				[
					'host' => 'ЗАББИКС Сервер',
					'item' => 'Linux: Available memory*',
					'Aggregation function' => 'avg',
					'Aggregate' => 'Data set',
					'Data set label' => '祝你今天過得愉快'
				],
				[
					'host' => 'ЗАББИКС Сервер',
					'item' => 'Linux: CPU guest*',
					'Aggregation function' => 'max',
					'Data set label' => 'Data set only'
				],
				[
					'host' => 'ЗАББИКС Сервер',
					'item' => 'Linux: CPU utilization',
					'Aggregation function' => 'count',
					'Aggregation interval' => '24h',
					'Aggregate' => 'Data set'
				]
			]
		];
		$displayed_data = [
			'Data sets' => [
				'祝你今天過得愉快',
				'Data set only',
				'Data set #3'
			],
			'Legend labels' => [
				'祝你今天過得愉快', 'max(ЗАББИКС Сервер: Linux: CPU guest nice time)', 'max(ЗАББИКС Сервер: Linux: CPU guest time)',
				'Data set #3'
			]
		];

		$this->page->login()->open('zabbix.php?action=dashboard.view&dashboardid=1030');
		$form = $this->openGraphWidgetConfiguration();

		// Check hint next to the "Data set label" field.
		$form->getLabel('Data set label')->query('xpath:./button[@data-hintbox]')->one()->click();
		$hint = $this->query('xpath://div[@class="overlay-dialogue"]')->waitUntilPresent()->one();
		$this->assertEquals('Also used as legend label for aggregated data sets.', $hint->getText());

		$this->fillForm($input_data, $form);
		$form->submit();
		$this->saveGraphWidget($input_data['main_fields']['Name']);

		// Check labels in legend.
		$widget = CDashboardElement::find()->one()->getWidget($input_data['main_fields']['Name']);
		$legend_labels = $widget->query('class:svg-graph-legend')->one()->getText();
		$this->assertEquals($displayed_data['Legend labels'], explode("\n", $legend_labels));

		$form = $widget->edit();

		// Check Data set names in created widget configuration form.
		$data_set_labels = $form->query('xpath:.//label[@class="sortable-drag-handle js-dataset-label"]')->all()->asText();
		$this->assertEquals($displayed_data['Data sets'], array_values($data_set_labels));
	}

	/**
	 * Check that fields are enabled or disabled.
	 *
	 * @param array $fields			array of checked fields
	 * @param boolean $enabled		fields state are enabled
	 * @param boolean $id			is used field id instead of field name
	 */
	private function assertEnabledFields($fields, $enabled = true) {
		$form = $this->query('id:widget-dialogue-form')->asForm()->one();

		if (!is_array($fields)) {
			$fields = [$fields];
		}

		foreach ($fields as $field) {
			$this->assertTrue($form->getField($field)->isEnabled($enabled));
		}
	}
}