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<?php
/* Icinga DB Web | (c) 2020 Icinga GmbH | GPLv2 */
namespace Icinga\Module\Icingadb\Web\Navigation\Renderer;
use Exception;
use Icinga\Application\Logger;
use Icinga\Module\Icingadb\Common\Database;
use Icinga\Web\Navigation\NavigationItem;
use Icinga\Web\Navigation\Renderer\NavigationItemRenderer;
use ipl\Html\HtmlDocument;
use ipl\Html\HtmlString;
use ipl\Web\Widget\Link;
use ipl\Web\Widget\StateBadge;
abstract class ProblemsBadge extends NavigationItemRenderer
{
use Database;
const STATE_CRITICAL = 'critical';
const STATE_UNKNOWN = 'unknown';
/** @var int Count cache */
protected $count;
/** @var string State text */
protected $state;
/** @var string Title */
protected $title;
protected $linkDisabled;
abstract protected function fetchProblemsCount();
abstract protected function getUrl();
public function getProblemsCount()
{
if ($this->count === null) {
try {
$count = $this->fetchProblemsCount();
} catch (Exception $e) {
Logger::debug($e);
$this->count = 1;
$this->setState(static::STATE_UNKNOWN);
$this->setTitle($e->getMessage());
return $this->count;
}
$this->count = $count;
$this->setState(static::STATE_CRITICAL);
}
return $this->count;
}
/**
* Set the state text
*
* @param string $state
*
* @return $this
*/
public function setState(string $state): self
{
$this->state = $state;
return $this;
}
/**
* Get the state text
*
* @return string
*/
public function getState(): string
{
if ($this->state === null) {
throw new \LogicException(
'You are accessing an unset property. Please make sure to set it beforehand.'
);
}
return $this->state;
}
/**
* Set the title
*
* @param string $title
*
* @return $this
*/
public function setTitle(string $title): self
{
$this->title = $title;
return $this;
}
/**
* Get the title
*
* @return ?string
*/
public function getTitle()
{
return $this->title;
}
public function render(NavigationItem $item = null): string
{
if ($item === null) {
$item = $this->getItem();
}
$item->setCssClass('badge-nav-item icinga-module module-icingadb');
$html = new HtmlDocument();
$badge = $this->createBadge();
if ($badge !== null) {
if ($this->linkDisabled) {
$badge->addAttributes(['class' => 'disabled']);
$this->setEscapeLabel(false);
$label = $this->view()->escape($item->getLabel());
$item->setLabel($badge . $label);
} else {
$html->add(new Link($badge, $this->getUrl(), ['title' => $this->getTitle()]));
}
}
return $html
->prepend(new HtmlString(parent::render($item)))
->render();
}
protected function createBadge()
{
$count = $this->getProblemsCount();
if ($count) {
return (new StateBadge($this->round($count), $this->getState()))
->addAttributes(['class' => 'badge', 'title' => $this->getTitle()]);
}
return null;
}
protected function round($count)
{
if ($count > 1000000) {
$count = round($count, -6) / 1000000 . 'M';
} elseif ($count > 1000) {
$count = round($count, -3) / 1000 . 'k';
}
return $count;
}
public function disableLink()
{
$this->linkDisabled = true;
return $this;
}
}
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