/**
* {@inheritdoc}
*/
protected function execute(InputInterface $input, OutputInterface $output)
{
$notation = $input->getArgument(self::NUMBER_ARGUMENT);
$notation = $this->filter->filter($notation);
$scientificNotation = $this->factory->make($notation);
$decimalFormat = $this->transformer->transform($scientificNotation);
$output->writeLn((string) $decimalFormat);
}
/**
* Transform number into scientific notation
*
* @param Entity\Number $number
* @return NotationInterface
*/
public function transform(Entity\Number $number)
{
$integer = $number->getInteger();
$fractional = $number->getFractional();
$result = 0;
$power = 0;
if (abs($number->getValue()) >= 1) {
$power = strlen($integer->getValue()) - 1;
$result = sprintf('%s%s', $integer->getValue(), $fractional->getValue());
$result = rtrim($result, '0');
} elseif ($number->getValue() != 0) {
$result = ltrim($fractional->getValue(), '0');
$power = strlen($result) - strlen($fractional->getValue()) - 1;
}
if (strlen($result) > 1) {
$result = substr_replace($result, '.', 1, 0);
}
$result = sprintf('%s%s', $number->getInteger()->getSign(), $result);
$result = sprintf('%s%s%s', $result, ScientificNotation::NOTATION_DELIMINATOR, $power);
return $this->scientificNotationFactory->make($result);
}