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<?php
namespace Bavix\Wallet\Simple;
use Bavix\Wallet\Interfaces\Mathable;
use Brick\Math\BigDecimal;
use Brick\Math\RoundingMode;
/**
* Class BrickMath.
*/
class BrickMath implements Mathable
{
/**
* @var int
*/
protected $scale;
/**
* {@inheritdoc}
*/
public function add($first, $second, ?int $scale = null): string
{
return (string) BigDecimal::of($first)
->plus(BigDecimal::of($second))
->toScale($this->scale($scale), RoundingMode::DOWN);
}
/**
* {@inheritdoc}
*/
public function sub($first, $second, ?int $scale = null): string
{
return (string) BigDecimal::of($first)
->minus(BigDecimal::of($second))
->toScale($this->scale($scale), RoundingMode::DOWN);
}
/**
* {@inheritdoc}
*/
public function div($first, $second, ?int $scale = null): string
{
return (string) BigDecimal::of($first)
->dividedBy(BigDecimal::of($second), $this->scale($scale), RoundingMode::DOWN);
}
/**
* {@inheritdoc}
*/
public function mul($first, $second, ?int $scale = null): string
{
return (string) BigDecimal::of($first)
->multipliedBy(BigDecimal::of($second))
->toScale($this->scale($scale), RoundingMode::DOWN);
}
/**
* {@inheritdoc}
*/
public function pow($first, $second, ?int $scale = null): string
{
return (string) BigDecimal::of($first)
->power($second)
->toScale($this->scale($scale), RoundingMode::DOWN);
}
/**
* {@inheritdoc}
*/
public function ceil($number): string
{
return (string) BigDecimal::of($number)
->dividedBy(BigDecimal::one(), 0, RoundingMode::CEILING);
}
/**
* {@inheritdoc}
*/
public function floor($number): string
{
return (string) BigDecimal::of($number)
->dividedBy(BigDecimal::one(), 0, RoundingMode::FLOOR);
}
/**
* {@inheritdoc}
*/
public function round($number, int $precision = 0): string
{
return (string) BigDecimal::of($number)
->dividedBy(BigDecimal::one(), $precision, RoundingMode::HALF_UP);
}
/**
* {@inheritdoc}
*/
public function abs($number): string
{
return (string) BigDecimal::of($number)->abs();
}
/**
* {@inheritdoc}
*/
public function negative($number): string
{
return (string) BigDecimal::of($number)->negated();
}
/**
* {@inheritdoc}
*/
public function compare($first, $second): int
{
return BigDecimal::of($first)->compareTo(BigDecimal::of($second));
}
/**
* @param int|null $scale
* @return int
*/
protected function scale(?int $scale = null): int
{
if ($this->scale === null) {
$this->scale = (int) config('wallet.math.scale', 64);
}
return $scale ?? $this->scale;
}
}