<?php
/*
** Zabbix
** Copyright (C) 2001-2017 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.
**/


class CControllerProblemView extends CController {

	protected function init() {
		$this->disableSIDValidation();
	}

	protected function checkInput() {
		$severities = [];
		for ($severity = TRIGGER_SEVERITY_NOT_CLASSIFIED; $severity < TRIGGER_SEVERITY_COUNT; $severity++) {
			$severities[] = $severity;
		}

		$fields = [
			'action' =>					'string',
			'sort' =>					'in clock,host,priority,problem',
			'sortorder' =>				'in '.ZBX_SORT_DOWN.','.ZBX_SORT_UP,
			'uncheck' =>				'in 1',
			'fullscreen' =>				'in 0,1',
			'page' =>					'ge 1',
			'filter_set' =>				'in 1',
			'filter_rst' =>				'in 1',
			'filter_show' =>			'in '.TRIGGERS_OPTION_RECENT_PROBLEM.','.TRIGGERS_OPTION_IN_PROBLEM.','.TRIGGERS_OPTION_ALL,
			'filter_groupids' =>		'array_id',
			'filter_hostids' =>			'array_id',
			'filter_application' =>		'string',
			'filter_triggerids' =>		'array_id',
			'filter_problem' =>			'string',
			'filter_severity' =>		'in '.implode(',', $severities),
			'filter_age_state' =>		'in 1',
			'filter_age' =>				'int32',
			'filter_inventory' =>		'array',
			'filter_tags' =>			'array',
			'filter_maintenance' =>		'in 1',
			'filter_unacknowledged' =>	'in 1',
			'filter_details' =>			'in 1',
			'period' =>					'ge '.ZBX_MIN_PERIOD.'|le '.ZBX_MAX_PERIOD,
			'stime' =>					'time'
		];

		$ret = $this->validateInput($fields);

		if ($ret && $this->hasInput('filter_inventory')) {
			foreach ($this->getInput('filter_inventory') as $filter_inventory) {
				if (count($filter_inventory) != 2
						|| !array_key_exists('field', $filter_inventory) || !is_string($filter_inventory['field'])
						|| !array_key_exists('value', $filter_inventory) || !is_string($filter_inventory['value'])) {
					$ret = false;
					break;
				}
			}
		}

		if ($ret && $this->hasInput('filter_tags')) {
			foreach ($this->getInput('filter_tags') as $filter_tag) {
				if (count($filter_tag) != 2
						|| !array_key_exists('tag', $filter_tag) || !is_string($filter_tag['tag'])
						|| !array_key_exists('value', $filter_tag) || !is_string($filter_tag['value'])) {
					$ret = false;
					break;
				}
			}
		}

		if (!$ret) {
			$this->setResponse(new CControllerResponseFatal());
		}

		return $ret;
	}

	protected function checkPermissions() {
		return ($this->getUserType() >= USER_TYPE_ZABBIX_USER);
	}

	protected function doAction() {
		$sortField = $this->getInput('sort', CProfile::get('web.problem.sort', 'clock'));
		$sortOrder = $this->getInput('sortorder', CProfile::get('web.problem.sortorder', ZBX_SORT_DOWN));

		CProfile::update('web.problem.sort', $sortField, PROFILE_TYPE_STR);
		CProfile::update('web.problem.sortorder', $sortOrder, PROFILE_TYPE_STR);

		// filter
		if (hasRequest('filter_set')) {
			CProfile::update('web.problem.filter.show', $this->getInput('filter_show', TRIGGERS_OPTION_RECENT_PROBLEM),
				PROFILE_TYPE_INT
			);
			CProfile::updateArray('web.problem.filter.groupids', $this->getInput('filter_groupids', []),
				PROFILE_TYPE_ID
			);
			CProfile::updateArray('web.problem.filter.hostids', $this->getInput('filter_hostids', []), PROFILE_TYPE_ID);
			CProfile::update('web.problem.filter.application', $this->getInput('filter_application', ''),
				PROFILE_TYPE_STR
			);
			CProfile::updateArray('web.problem.filter.triggerids', $this->getInput('filter_triggerids', []),
				PROFILE_TYPE_ID
			);
			CProfile::update('web.problem.filter.problem', $this->getInput('filter_problem', ''), PROFILE_TYPE_STR);
			CProfile::update('web.problem.filter.severity',
				$this->getInput('filter_severity', TRIGGER_SEVERITY_NOT_CLASSIFIED), PROFILE_TYPE_INT
			);
			CProfile::update('web.problem.filter.age_state', $this->getInput('filter_age_state', 0), PROFILE_TYPE_INT);
			CProfile::update('web.problem.filter.age', $this->getInput('filter_age', 14), PROFILE_TYPE_INT);

			$filter_inventory = ['fields' => [], 'values' => []];
			foreach ($this->getInput('filter_inventory', []) as $field) {
				if ($field['value'] === '') {
					continue;
				}

				$filter_inventory['fields'][] = $field['field'];
				$filter_inventory['values'][] = $field['value'];
			}
			CProfile::updateArray('web.problem.filter.inventory.field', $filter_inventory['fields'], PROFILE_TYPE_STR);
			CProfile::updateArray('web.problem.filter.inventory.value', $filter_inventory['values'], PROFILE_TYPE_STR);

			$filter_tags = ['tags' => [], 'values' => []];
			foreach ($this->getInput('filter_tags', []) as $filter_tag) {
				if ($filter_tag['tag'] === '' && $filter_tag['value'] === '') {
					continue;
				}

				$filter_tags['tags'][] = $filter_tag['tag'];
				$filter_tags['values'][] = $filter_tag['value'];
			}
			CProfile::updateArray('web.problem.filter.tags.tag', $filter_tags['tags'], PROFILE_TYPE_STR);
			CProfile::updateArray('web.problem.filter.tags.value', $filter_tags['values'], PROFILE_TYPE_STR);
			CProfile::update('web.problem.filter.maintenance', $this->getInput('filter_maintenance', 0),
				PROFILE_TYPE_INT
			);
			CProfile::update('web.problem.filter.unacknowledged', $this->getInput('filter_unacknowledged', 0),
				PROFILE_TYPE_INT
			);
			CProfile::update('web.problem.filter.details', $this->getInput('filter_details', 0), PROFILE_TYPE_INT);
		}
		elseif (hasRequest('filter_rst')) {
			CProfile::delete('web.problem.filter.show');
			CProfile::deleteIdx('web.problem.filter.groupids');
			CProfile::deleteIdx('web.problem.filter.hostids');
			CProfile::delete('web.problem.filter.application');
			CProfile::deleteIdx('web.problem.filter.triggerids');
			CProfile::delete('web.problem.filter.problem');
			CProfile::delete('web.problem.filter.severity');
			CProfile::delete('web.problem.filter.age_state');
			CProfile::delete('web.problem.filter.age');
			CProfile::deleteIdx('web.problem.filter.inventory.field');
			CProfile::deleteIdx('web.problem.filter.inventory.value');
			CProfile::deleteIdx('web.problem.filter.tags.tag');
			CProfile::deleteIdx('web.problem.filter.tags.value');
			CProfile::delete('web.problem.filter.maintenance');
			CProfile::delete('web.problem.filter.unacknowledged');
			CProfile::delete('web.problem.filter.details');
		}

		$config = select_config();
		$filter_groupids = CProfile::getArray('web.problem.filter.groupids', []);
		$filter_hostids = CProfile::getArray('web.problem.filter.hostids', []);
		$filter_triggerids = CProfile::getArray('web.problem.filter.triggerids', []);

		$groups = [];

		if ($filter_groupids) {
			$filter_groups = API::HostGroup()->get([
				'output' => ['groupid', 'name'],
				'groupids' => $filter_groupids,
				'preservekeys' => true
			]);

			$filter_groups_names = [];

			foreach ($filter_groups as $group) {
				$filter_groups_names[] = $group['name'].'/';
			}

			if ($filter_groups_names) {
				$child_groups = API::HostGroup()->get([
					'output' => ['groupid'],
					'search' => ['name' => $filter_groups_names],
					'searchByAny' => true,
					'startSearch' => true
				]);

				foreach ($child_groups as $child_group) {
					$filter_groupids[] = $child_group['groupid'];
				}
			}

			$groups = CArrayHelper::renameObjectsKeys($filter_groups, ['groupid' => 'id']);
		}

		$filter_triggers = $filter_triggerids
			? CArrayHelper::renameObjectsKeys(API::Trigger()->get([
				'output' => ['triggerid', 'description'],
				'selectHosts' => ['name'],
				'expandDescription' => true,
				'triggerids' => $filter_triggerids,
				'monitored' => true
			]), ['triggerid' => 'id', 'description' => 'name'])
			: [];

		CArrayHelper::sort($filter_triggers, [
			['field' => 'name', 'order' => ZBX_SORT_UP]
		]);

		foreach ($filter_triggers as &$filter_trigger) {
			$filter_trigger['prefix'] = $filter_trigger['hosts'][0]['name'].NAME_DELIMITER;
			unset($filter_trigger['hosts']);
		}
		unset($filter_trigger);

		$severities = [];
		foreach (range(TRIGGER_SEVERITY_NOT_CLASSIFIED, TRIGGER_SEVERITY_COUNT - 1) as $severity) {
			$severities[] = getSeverityName($severity, $config);
		}

		$inventories = [];
		foreach (getHostInventories() as $inventory) {
			$inventories[$inventory['db_field']] = $inventory['title'];
		}

		$filter_inventory = [];
		foreach (CProfile::getArray('web.problem.filter.inventory.field', []) as $i => $field) {
			$filter_inventory[] = [
				'field' => $field,
				'value' => CProfile::get('web.problem.filter.inventory.value', null, $i)
			];
		}

		$filter_tags = [];
		foreach (CProfile::getArray('web.problem.filter.tags.tag', []) as $i => $tag) {
			$filter_tags[] = [
				'tag' => $tag,
				'value' => CProfile::get('web.problem.filter.tags.value', null, $i)
			];
		}

		/*
		 * Display
		 */
		$data = [
			'action' => $this->getInput('action'),
			'sort' => $sortField,
			'sortorder' => $sortOrder,
			'uncheck' => $this->hasInput('uncheck'),
			'fullscreen' => $this->getInput('fullscreen', 0),
			'page' => $this->getInput('page', 1),
			'filter' => [
				'show' => CProfile::get('web.problem.filter.show', TRIGGERS_OPTION_RECENT_PROBLEM),
				'groupids' => $filter_groupids,
				'groups' => $groups,
				'hostids' => $filter_hostids,
				'hosts' => $filter_hostids
					? CArrayHelper::renameObjectsKeys(API::Host()->get([
						'output' => ['hostid', 'name'],
						'hostids' => $filter_hostids
					]), ['hostid' => 'id'])
					: [],
				'application' => CProfile::get('web.problem.filter.application', ''),
				'triggerids' => $filter_triggerids,
				'triggers' => $filter_triggers,
				'problem' => CProfile::get('web.problem.filter.problem', ''),
				'severity' => CProfile::get('web.problem.filter.severity', TRIGGER_SEVERITY_NOT_CLASSIFIED),
				'severities' => $severities,
				'age_state' => CProfile::get('web.problem.filter.age_state', 0),
				'age' => CProfile::get('web.problem.filter.age', 14),
				'inventories' => $inventories,
				'inventory' => $filter_inventory,
				'tags' => $filter_tags,
				'maintenance' => CProfile::get('web.problem.filter.maintenance', 1),
				'unacknowledged' => CProfile::get('web.problem.filter.unacknowledged', 0),
				'details' => CProfile::get('web.problem.filter.details', 0)
			],
			'config' => [
				'event_ack_enable' => $config['event_ack_enable']
			]
		];

		if ($data['filter']['show'] == TRIGGERS_OPTION_ALL) {
			$data['filter']['period'] = $this->getInput('period',
				CProfile::get('web.problem.timeline.period', ZBX_PERIOD_DEFAULT)
			);
			$data['filter']['stime'] = $this->getInput('stime',
				CProfile::get('web.problem.timeline.stime', date(TIMESTAMP_FORMAT, time()))
			);
		}

		$response = new CControllerResponseData($data);
		$response->setTitle(_('Problems'));
		if ($data['action'] == 'problem.view.csv') {
			$response->setFileName('zbx_problems_export.csv');
		}

		$this->setResponse($response);
	}
}
