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<?php
namespace Mautic\CoreBundle\Helper\Chart;
class PieChart extends AbstractChart implements ChartInterface
{
/**
* Holds the suma of the all dataset values.
*
* @var float
*/
protected $totalCount = 0;
/**
* @return array{labels: mixed[], datasets: mixed[]}
*/
public function render($withCounts = true): array
{
$data = ['data' => [], 'backgroundColor' => [], 'hoverBackgroundColor' => []];
foreach ($this->datasets as $datasetId => $value) {
$color = $this->configureColorHelper($datasetId);
$data['data'][] = $value;
$data['backgroundColor'][] = $color->toRgba(0.8);
$data['hoverBackgroundColor'][] = $color->toRgba(0.9);
if ($withCounts) {
$this->labels[$datasetId] = $this->buildFullLabel($this->labels[$datasetId], $value);
}
}
return [
'labels' => $this->labels,
'datasets' => [$data],
];
}
/**
* Define a dataset by name and count number. Method will add the rest.
*
* @param string $label
* @param int $value
*
* @return $this
*/
public function setDataset($label, $value)
{
$this->totalCount += $value;
$this->datasets[] = $value;
$this->labels[] = $label;
return $this;
}
/**
* Adds to the label also the value and the percentage.
*
* @param string $label
* @param int $value
*
* @return string
*/
public function buildFullLabel($label, $value)
{
if (!$this->totalCount) {
return $label;
}
$percentage = round($value / $this->totalCount * 100, 2);
return $label.'; '.$value.'x, '.$percentage.'%';
}
}
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