<?php
namespace JLaso\ToolsLib;
class ProgressBar
{
/** @var int */
protected $value;
/** @var int */
protected $oldValue;
/** @var int */
protected $maxValue;
/** @var int */
protected $size;
/** @var int */
protected $percEmptySize;
/** @var int */
protected $slice;
const MASC_PERCENT = "%3d%% ";
/**
* ProgressBar constructor.
*/
public function __construct($maxValue, $size = 50)
{
$this->maxValue = $maxValue;
$this->value = 0;
$this->oldValue = 0;
$this->size = $size;
$percEmpty = sprintf(self::MASC_PERCENT, 0);
$this->percEmptySize = strlen($percEmpty);
$this->slice = intval($maxValue/$size);
print ($percEmpty . str_repeat('ยท', $this->size) . str_repeat(chr(8), $this->percEmptySize + $this->size));
}
/**
* @param $value
*/
public function updateValue($value)
{
$this->value = intval(ceil(100 * $value / $this->maxValue));
if ($this->value != $this->oldValue) {
$this->draw();
$this->oldValue = $this->value;
}
}
protected function draw()
{
$mask = array('*','o','-',"\\",'|','/');
$this->slice;
$pperc = intval($this->value * $this->size / 100);
print (
sprintf(self::MASC_PERCENT, $this->value) .
str_repeat("*", $pperc) . $mask[($this->value % $this->slice) % 6] .
str_repeat(chr(8), $this->percEmptySize + $pperc + 1)
);
}
}
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