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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Setup\Model\Installer;
/**
* Installation progress model
*/
class Progress
{
/**
* Total number of steps
*
* @var int
*/
private $total;
/**
* Current step
*
* @var int
*/
private $current;
/**
* Constructor
*
* @param int $total
* @param int $current
*/
public function __construct($total, $current = 0)
{
$this->validate($total, $current);
$this->total = $total;
$this->current = $current;
}
/**
* Increments current counter
*
* @return void
*/
public function setNext()
{
$this->validate($this->total, $this->current + 1);
$this->current++;
}
/**
* Sets current counter to the end
*
* @return void
*/
public function finish()
{
$this->current = $this->total;
}
/**
* Gets the current counter
*
* @return int
*/
public function getCurrent()
{
return $this->current;
}
/**
* Gets the total number
*
* @return int
*/
public function getTotal()
{
return $this->total;
}
/**
* Gets ratio of current to total
*
* @return float
*/
public function getRatio()
{
return $this->current / $this->total;
}
/**
* Asserts invariants
*
* @param int $total
* @param int $current
* @return void
* @throws \LogicException
*/
private function validate($total, $current)
{
if (empty($total) || 0 >= $total) {
throw new \LogicException('Total number must be more than zero.');
}
if ($current > $total) {
throw new \LogicException('Current cannot exceed total number.');
}
}
}