<?php

// (c) Copyright by authors of the Tiki Wiki CMS Groupware Project
//
// All Rights Reserved. See copyright.txt for details and a complete list of authors.
// Licensed under the GNU LESSER GENERAL PUBLIC LICENSE. See license.txt for details.
// $Id$

namespace Tiki\Lib\test\TestHelpers;

/**
 * Class GlobRecursiveHelper
 *
 * Used to find files of one type or another. Defaults to all Tiki files.
 *
 * @package Tiki\Lib\test\TestHelpers
 */
class GlobRecursiveHelper
{
    private $excludes;
    private $pattern;
    private $flags;

    /**
     * GlobRecursiveHelper constructor.
     *
     * @param array          $excludes  Defaults to all Tiki files
     * @param string         $pattern   A file glob file pattern that must be matched eg. '*.php'
     * @param int            $flags     Any glob flags that should be used
     */
    public function __construct(string $pattern = '*', array $excludes = ['vendor_', 'vendor/', 'temp/', 'lib/test/'], int $flags = GLOB_BRACE)
    {
        $this->excludes = $excludes;
        $this->pattern = $pattern;
        $this->flags = $flags;
    }

    /**
     * @param string $startDir  The directory to scan, defaults to Tiki root dir
     *
     * @return array            An array of all files matched, or an empty array if no files matched
     */
    public function process(string $startDir = ''): array
    {

        $files = glob($startDir . $this->pattern, $this->flags);
        foreach ($files as $key => $fileName) {
            foreach ($this->excludes as $exclude) {
                if (strpos($fileName, $exclude)) {
                    unset($files[$key]);
                    break;
                }
            }
        }
        foreach (glob($startDir . '*', GLOB_ONLYDIR | GLOB_NOSORT | GLOB_MARK) as $dir) {
            // lets ignore hidden directories (and the .. and . files)
            if (strpos($dir, '.') === 0 && is_dir($dir)) {
                break;
            }
            /** If the directory has not been excluded from processing */
            $include = true;
            foreach ($this->excludes as $exclude) {
                if (strpos($dir, $exclude) !== false) {
                    $include = false;
                    break;
                }
            }
            if ($include) {
                $files = array_merge($files, $this->process($dir));
            }
        }
        return $files;
    }
}