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<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <[email protected]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace RectorPrefix202308\Symfony\Component\Finder\Iterator;

use RectorPrefix202308\Symfony\Component\Finder\Gitignore;
/**
 * @extends \FilterIterator<string, \SplFileInfo>
 */
final class VcsIgnoredFilterIterator extends \FilterIterator
{
    /**
     * @var string
     */
    private $baseDir;
    /**
     * @var array<string, array{0: string, 1: string}|null>
     */
    private $gitignoreFilesCache = [];
    /**
     * @var array<string, bool>
     */
    private $ignoredPathsCache = [];
    /**
     * @param \Iterator<string, \SplFileInfo> $iterator
     */
    public function __construct(\Iterator $iterator, string $baseDir)
    {
        $this->baseDir = $this->normalizePath($baseDir);
        foreach ($this->parentDirectoriesUpwards($this->baseDir) as $parentDirectory) {
            if (@\is_dir("{$parentDirectory}/.git")) {
                $this->baseDir = $parentDirectory;
                break;
            }
        }
        parent::__construct($iterator);
    }
    public function accept() : bool
    {
        $file = $this->current();
        $fileRealPath = $this->normalizePath($file->getRealPath());
        return !$this->isIgnored($fileRealPath);
    }
    private function isIgnored(string $fileRealPath) : bool
    {
        if (\is_dir($fileRealPath) && \substr_compare($fileRealPath, '/', -\strlen('/')) !== 0) {
            $fileRealPath .= '/';
        }
        if (isset($this->ignoredPathsCache[$fileRealPath])) {
            return $this->ignoredPathsCache[$fileRealPath];
        }
        $ignored = \false;
        foreach ($this->parentDirectoriesDownwards($fileRealPath) as $parentDirectory) {
            if ($this->isIgnored($parentDirectory)) {
                // rules in ignored directories are ignored, no need to check further.
                break;
            }
            $fileRelativePath = \substr($fileRealPath, \strlen($parentDirectory) + 1);
            if (null === ($regexps = $this->readGitignoreFile("{$parentDirectory}/.gitignore"))) {
                continue;
            }
            [$exclusionRegex, $inclusionRegex] = $regexps;
            if (\preg_match($exclusionRegex, $fileRelativePath)) {
                $ignored = \true;
                continue;
            }
            if (\preg_match($inclusionRegex, $fileRelativePath)) {
                $ignored = \false;
            }
        }
        return $this->ignoredPathsCache[$fileRealPath] = $ignored;
    }
    /**
     * @return list<string>
     */
    private function parentDirectoriesUpwards(string $from) : array
    {
        $parentDirectories = [];
        $parentDirectory = $from;
        while (\true) {
            $newParentDirectory = \dirname($parentDirectory);
            // dirname('/') = '/'
            if ($newParentDirectory === $parentDirectory) {
                break;
            }
            $parentDirectories[] = $parentDirectory = $newParentDirectory;
        }
        return $parentDirectories;
    }
    private function parentDirectoriesUpTo(string $from, string $upTo) : array
    {
        return \array_filter($this->parentDirectoriesUpwards($from), static function (string $directory) use($upTo) : bool {
            return \strncmp($directory, $upTo, \strlen($upTo)) === 0;
        });
    }
    /**
     * @return list<string>
     */
    private function parentDirectoriesDownwards(string $fileRealPath) : array
    {
        return \array_reverse($this->parentDirectoriesUpTo($fileRealPath, $this->baseDir));
    }
    /**
     * @return array{0: string, 1: string}|null
     */
    private function readGitignoreFile(string $path) : ?array
    {
        if (\array_key_exists($path, $this->gitignoreFilesCache)) {
            return $this->gitignoreFilesCache[$path];
        }
        if (!\file_exists($path)) {
            return $this->gitignoreFilesCache[$path] = null;
        }
        if (!\is_file($path) || !\is_readable($path)) {
            throw new \RuntimeException("The \"ignoreVCSIgnored\" option cannot be used by the Finder as the \"{$path}\" file is not readable.");
        }
        $gitignoreFileContent = \file_get_contents($path);
        return $this->gitignoreFilesCache[$path] = [Gitignore::toRegex($gitignoreFileContent), Gitignore::toRegexMatchingNegatedPatterns($gitignoreFileContent)];
    }
    private function normalizePath(string $path) : string
    {
        if ('\\' === \DIRECTORY_SEPARATOR) {
            return \str_replace('\\', '/', $path);
        }
        return $path;
    }
}