<?php

namespace Assetic\Filter;

use Assetic\Asset\AssetInterface;
use Assetic\Util\ProcessBuilder;

/**
 * Runs assets through OptiPNG.
 *
 * @link   http://optipng.sourceforge.net/
 * @author Kris Wallsmith <kris.wallsmith@gmail.com>
 */
class OptiPngFilter implements FilterInterface
{
	private $optipngBin;
	private $level;


	/**
	 * Constructor.
	 *
	 * @param string $optipngBin Path to the optipng binary
	 */
	public function __construct($optipngBin = '/usr/bin/optipng')
	{
		$this->optipngBin = $optipngBin;
	}


	public function setLevel($level)
	{
		$this->level = $level;
	}


	public function filterLoad(AssetInterface $asset)
	{
	}


	public function filterDump(AssetInterface $asset)
	{
		$pb = new ProcessBuilder(array($this->optipngBin));

		if (null !== $this->level) {
		    $pb->add('-o')->add($this->level);
		}

		$pb->add('-out')->add($output = tempnam(sys_get_temp_dir(), 'assetic_optipng'));
		unlink($output);

		$pb->add($input = tempnam(sys_get_temp_dir(), 'assetic_optipng'));
		file_put_contents($input, $asset->getContent());

		$proc = $pb->getProcess();
		$code = $proc->run();

		if (0 < $code) {
		    unlink($input);
		    throw new \RuntimeException($proc->getErrorOutput());
		}

		$asset->setContent(file_get_contents($output));

		unlink($input);
		unlink($output);
	}
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NDkxMzQ5OTcxMDk1MTg3MyA2ODQ4MzMxNjMyOTI0NjY4IDY0MjU5ODQ0MjcxMzA1Mjc=