import 'package:appframe/config/constant.dart';
import 'package:appframe/services/dispatcher.dart';
import 'package:open_file/open_file.dart';
import 'package:url_launcher/url_launcher.dart';

class OpenDocumentHandler extends MessageHandler {
  @override
  Future<dynamic> handleMessage(params) async {
    if (params is! Map<String, dynamic>) {
      throw Exception('参数错误');
    }

    var url = params['url'] as String;
    if (url.isEmpty) {
      throw Exception('参数错误');
    }

    if (url.startsWith('http://127.0.0.1:${Constant.localServerPort}')) {
      url = url.replaceFirst('http://127.0.0.1:${Constant.localServerPort}', '');
    }

    if (url.startsWith('/temp')) {
      url = url.substring(5);
    }

    if (url.startsWith('http')) {
      return await _launchInBrowser(Uri.parse(url));
    } else {
      return await _open(url);
    }
  }

  Future<bool> _launchInBrowser(Uri url) async {
    if (await canLaunchUrl(url)) {
      return await launchUrl(url, mode: LaunchMode.platformDefault);
    } else {
      throw Exception('Could not launch $url');
    }
  }

  /// 暂时就简单打开一下，未做复杂调用
  Future<bool> _open(String filePath) async {
    var r = await OpenFile.open("filePath");
    return r.type == ResultType.done;
  }
}