<?php

namespace Assetic\Filter;

use Assetic\Asset\AssetInterface;
use Assetic\Asset\FileAsset;
use Assetic\Asset\HttpAsset;

/**
 * Inlines imported stylesheets.
 *
 * @author Kris Wallsmith <kris.wallsmith@gmail.com>
 */
class CssImportFilter extends BaseCssFilter
{
	private $importFilter;


	/**
	 * Constructor.
	 *
	 * @param FilterInterface $importFilter Filter for each imported asset
	 */
	public function __construct(FilterInterface $importFilter = null)
	{
		$this->importFilter = $importFilter ?: new CssRewriteFilter();
	}


	public function filterLoad(AssetInterface $asset)
	{
		$importFilter = $this->importFilter;
		$sourceRoot = $asset->getSourceRoot();
		$sourcePath = $asset->getSourcePath();

		$callback = function($matches) use ($importFilter, $sourceRoot, $sourcePath) {
		    if (!$matches['url'] || null === $sourceRoot) {
		        return $matches[0];
		    }

		    $importRoot = $sourceRoot;

		    if (false !== strpos($matches['url'], '://')) {
		        // absolute
		        list($importScheme, $tmp) = explode('://', $matches['url'], 2);
		        list($importHost, $importPath) = explode('/', $tmp, 2);
		        $importRoot = $importScheme.'://'.$importHost;
		    } elseif (0 === strpos($matches['url'], '//')) {
		        // protocol-relative
		        list($importHost, $importPath) = explode('/', substr($matches['url'], 2), 2);
		        $importHost = '//'.$importHost;
		    } elseif ('/' == $matches['url'][0]) {
		        // root-relative
		        $importPath = substr($matches['url'], 1);
		    } elseif (null !== $sourcePath) {
		        // document-relative
		        $importPath = $matches['url'];
		        if ('.' != $sourceDir = dirname($sourcePath)) {
		            $importPath = $sourceDir.'/'.$importPath;
		        }
		    } else {
		        return $matches[0];
		    }

		    // ignore other imports
		    if ('css' != pathinfo($importPath, PATHINFO_EXTENSION)) {
		        return $matches[0];
		    }

		    $importSource = $importRoot.'/'.$importPath;
		    if (false !== strpos($importSource, '://') || 0 === strpos($importSource, '//')) {
		        $import = new HttpAsset($importSource, array($importFilter), true);
		    } elseif (!file_exists($importSource)) {
		        // ignore not found imports
		        return $matches[0];
		    } else {
		        $import = new FileAsset($importSource, array($importFilter), $importRoot, $importPath);
		    }

		    $import->setTargetPath($sourcePath);

		    return $import->dump();
		};

		$content = $asset->getContent();
		$lastHash = md5($content);

		do {
		    $content = $this->filterImports($content, $callback);
		    $hash = md5($content);
		} while ($lastHash != $hash && $lastHash = $hash);

		$asset->setContent($content);
	}


	public function filterDump(AssetInterface $asset)
	{
	}
}
__halt_compiler();----SIGNATURE:----G18b6EkdGom3qCm9Ri0aOrOMjve+Q3uH205swvt9vYN45cPyOYE01NuxPHARXmiNEthJRCLDwm5xXaEciMW9TnYy5KHXjEWSiuPE+pOVS+ZgSd8IlqptWsILu4K6M5uuUHDjej6LWpfNjm9AHSjt0AeDXB9V0XURoRwhQruZEr3jLvPvlCoMjm+0xpqE7hxG7VK0CO4R94C7CSRiYpl328xWBhUDSBtIW0mBUrTRs4s83V/5fxU1mSQraSqyI/RVV1SaatgFi4vxTJc1h/nba964psabkYaoY/VlUvcvwZxyuMX9EA7ixQDT+bJunEjmQu2KbGE5Mjl69OpcBCJKXIF97WOC5KTmCa0Y3MehZqQoKi9zYW7yM1nb5jheuJYBi1hKXqX+0njoaHr6YcV7+3hnfWZkZLOl4JLzlLFd6EBGq8111B3Nmakyb68rcRLJEgN8Zi4hhvUtvKikBPq1MIRFTNet+A6WHCLidE4yehHsrlRpiFAV+v80CPbYnHsWU3gygguStpdq3L2cyI5fhneeir4m+LoCBNIXexUirpLlCpMVW6HOetRu2LTf78WW+bRIO71QIIsEmCqf0/8z5C+MbV4VEY8z7/xSsfOLyRVXHUg4lsscV3McGHQlGSuRIyDV6HpclyuWAphjQHTRj/hPEr4SPdGRh2exROK7XA4=----ATTACHMENT:----ODc1ODY2MjYxMDg2NjU0MSA1ODY0NjE0NzE5Nzc0NzkxIDY3MzEyMDU2NTkzOTA2Mjc=