<?php declare(strict_types=1);

/**
 * @license Apache 2.0
 */

namespace OpenApi;

use OpenApi\Annotations\OpenApi;
use Symfony\Component\Finder\Finder;

if (defined('OpenApi\\UNDEFINED') === false) {
    /*
     * Special value to differentiate between null and undefined.
     *
     * @deprecated use Generator::UNDEFINED
     */
    define('OpenApi\\UNDEFINED', Generator::UNDEFINED);

    /*
     * Special value to differentiate between null and undefined.
     *
     * @deprecated use Generator::UNDEFINED
     */
    define('OpenApi\\Annotations\\UNDEFINED', Generator::UNDEFINED);

    /*
     * Special value to differentiate between null and undefined.
     *
     * @deprecated use Generator::UNDEFINED
     */
    define('OpenApi\\Processors\\UNDEFINED', Generator::UNDEFINED);
}

if (!function_exists('OpenApi\\scan')) {
    /**
     * Scan the filesystem for OpenAPI annotations and build openapi-documentation.
     *
     * @param array|Finder|string $directory The directory(s) or filename(s)
     * @param array               $options
     *                                       exclude: string|array $exclude The directory(s) or filename(s) to exclude (as absolute or relative paths)
     *                                       pattern: string       $pattern File pattern(s) to scan (default: *.php)
     *                                       analyser: defaults to StaticAnalyser
     *                                       analysis: defaults to a new Analysis
     *                                       processors: defaults to the registered processors in Analysis
     *
     * @return OpenApi
     *
     * @deprecated use \OpenApi\Generator instead
     */
    function scan($directory, $options = [])
    {
        $exclude = array_key_exists('exclude', $options) ? $options['exclude'] : null;
        $pattern = array_key_exists('pattern', $options) ? $options['pattern'] : null;

        return Generator::scan(Util::finder($directory, $exclude, $pattern), $options);
    }
}