<?php
/* Icinga Web 2 | (c) 2016 Icinga Development Team | GPLv2+ */

namespace Icinga\Module\Eventdb\Controllers;

use Icinga\Data\Filter\Filter;
use Icinga\Module\Eventdb\EventdbController;
use Icinga\Module\Eventdb\Forms\Event\EventCommentForm;
use Icinga\Module\Eventdb\Forms\Events\AckFilterForm;
use Icinga\Module\Eventdb\Forms\Events\SeverityFilterForm;
use Icinga\Module\Eventdb\Hook\DetailviewExtensionHook;
use Icinga\Module\Eventdb\Web\EventdbOutputFormat;
use Icinga\Util\StringHelper;
use Icinga\Web\Hook;
use Icinga\Web\Url;

class EventsController extends EventdbController
{
    public function init()
    {
        parent::init();
        $this->view->title = 'EventDB: ' . $this->translate('Events');
    }

    public function indexAction()
    {
        $this->assertPermission('eventdb/events');

        $this->getTabs()->add('events', array(
            'active' => ! $this->isFormatRequest(),
            'title'  => $this->translate('Events'),
            'url'    => Url::fromRequest()->without(array('format'))
        ))->extend(new EventdbOutputFormat(array(), array(EventdbOutputFormat::TYPE_TEXT)));

        $columnConfig = $this->Config('columns');
        if ($this->params->has('columns')) {
            $additionalColumns = StringHelper::trimSplit($this->params->get('columns'));
        } elseif (! $columnConfig->isEmpty()) {
            $additionalColumns = $columnConfig->keys();
        } else {
            $additionalColumns = array();
        }

        $events = $this->getDb()->select()
            ->from('event');

        $columns = array_merge($events->getColumns(), $additionalColumns);
        $events->columns($columns);

        $events->applyFilter(Filter::matchAny(array_map(
            '\Icinga\Data\Filter\Filter::fromQueryString',
            $this->getRestrictions('eventdb/events/filter', 'eventdb/events')
        )));

        $this->getDb()->filterGroups($events);

        $this->setupPaginationControl($events);

        $this->setupFilterControl(
            $events,
            array(
                'host_name'    => $this->translate('Host'),
                'host_address' => $this->translate('Host Address'),
                'type'         => $this->translate('Type'),
                'program'      => $this->translate('Program'),
                'facility'     => $this->translate('Facility'),
                'priority'     => $this->translate('Priority'),
                'message'      => $this->translate('Message'),
                'ack'          => $this->translate('Acknowledged'),
                'created'      => $this->translate('Created')
            ),
            array('host_name'),
            array('columns', 'format')
        );

        $this->setupLimitControl();

        $this->setupSortControl(
            array(
                'host_name'    => $this->translate('Host'),
                'host_address' => $this->translate('Host Address'),
                'type'         => $this->translate('Type'),
                'program'      => $this->translate('Program'),
                'facility'     => $this->translate('Facility'),
                'priority'     => $this->translate('Priority'),
                'message'      => $this->translate('Message'),
                'ack'          => $this->translate('Acknowledged'),
                'created'      => $this->translate('Created')
            ),
            $events,
            array('created' => 'desc')
        );

        if ($this->view->compact) {
            $events->peekAhead();
        }

        if ($this->params->get('format') === 'sql') {
            $this->sendSqlSummary($events);
        } elseif ($this->isApiRequest()) {
            $data = new \stdClass;
            $data->events = $events->fetchAll();
            $this->sendJson($data);
            exit;
        } elseif ($this->isTextRequest()) {
            $this->view->columnConfig = $this->Config('columns');
            $this->view->additionalColumns = $additionalColumns;
            $this->view->events = $events;

            $this->sendText(null, 'events/index-plain');
        } else {
            $this->setAutorefreshInterval(15);

            $severityFilterForm = new SeverityFilterForm();
            $severityFilterForm->handleRequest();

            $ackFilterForm = new AckFilterForm();
            $ackFilterForm->handleRequest();

            $this->view->ackFilterForm = $ackFilterForm;
            $this->view->columnConfig = $this->Config('columns');
            $this->view->additionalColumns = $additionalColumns;
            $this->view->events = $events;
            $this->view->severityFilterForm = $severityFilterForm;
        }
    }

    public function detailsAction()
    {
        $this->assertPermission('eventdb/events');

        $url = Url::fromRequest()->without(array('format'));

        $this->getTabs()->add('events', array(
            'active' => ! $this->isFormatRequest(),
            'title'  => $this->translate('Events'),
            'url'    => $url
        ))->extend(new EventdbOutputFormat(array(), array(EventdbOutputFormat::TYPE_TEXT)));

        $events = $this->getDb()
            ->select()
            ->from('event');

        $this->getDb()->filterGroups($events);

        $filter = Filter::fromQueryString($url->getQueryString());
        $events->applyFilter($filter);

        $events->applyFilter(Filter::matchAny(array_map(
            '\Icinga\Data\Filter\Filter::fromQueryString',
            $this->getRestrictions('eventdb/events/filter', 'eventdb/events')
        )));

        if ($this->isApiRequest()) {
            $this->sendJson($events->fetchAll());
        } elseif ($this->isTextRequest()) {
            $this->view->events = $events->fetchAll();
            $this->view->columnConfig = $this->Config('columns');

            $this->sendText(null, 'events/details-plain');
        } else {
            $commentForm = null;
            if ($this->hasPermission('eventdb/interact')) {
                $commentForm = new EventCommentForm();
                $commentForm
                    ->setDb($this->getDb())
                    ->setFilter($filter)
                    ->handleRequest();
                $this->view->commentForm = $commentForm;
            }

            $this->view->events = $events->fetchAll();
            $this->view->columnConfig = $this->Config('columns');

            $this->view->extensionsHtml = array();
            foreach (Hook::all('Eventdb\DetailviewExtension') as $hook) {
                /** @var DetailviewExtensionHook $hook */
                $module = $this->view->escape($hook->getModule()->getName());
                $this->view->extensionsHtml[] =
                    '<div class="icinga-module module-' . $module . '" data-icinga-module="' . $module . '">'
                    . $hook->setView($this->view)->getHtmlForEvents($this->view->events)
                    . '</div>';
            }
        }
    }
}