import 'package:flutter/material.dart';
import 'package:flutter_test_gui/main.dart';
import 'package:qr_flutter/qr_flutter.dart';
import 'package:cross_file/cross_file.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:flutter_test_gui/src/rust/api/simple.dart';
import 'package:flutter_test_gui/src/rust/frb_generated.dart';
import 'package:flutter_test_gui/consts/consts.dart';
import 'package:permission_handler/permission_handler.dart';

// const backColor = Color(0xFF32363E);
// const highlightColor = Color(0xFF98C379);
// const textColor = Color(0xFFABB2BF);

class TransferScreen extends StatefulWidget {
  final List<XFile> files;
  final String transferName;

  const TransferScreen(
      {Key? key, required this.transferName, required this.files})
      : super(key: key);

  @override
  _TransferScreenState createState() => _TransferScreenState();
}

class _TransferScreenState extends State<TransferScreen> {
  String appOrigin = '';
  String inputValue = '';
  @override
  void initState() {
    super.initState();
    loadSettings().then((_) => callStartReceiver(appOrigin));
  }

  Future<void> loadSettings() async {
    SharedPreferences prefs = await SharedPreferences.getInstance();
    appOrigin = prefs.getString('app_origin') ??
        'wss://caesar-transfer-iu.shuttleapp.rs'; // Laden Sie die app_origin
  }

  Future<void> callStartReceiver(String appOrigin) async {
    _startTransfer(appOrigin);
  }

  Future<void> _startTransfer(String appOrigin) async {
    final input = inputValue.trim();
    if (input.isNotEmpty) {
      // if (Platform.isAndroid) {
      //   if (await _requestPermission(Permission.storage)) {
      //     try {
      //       final outcome =
      //           await startRustReceiver(transfername: input, relay: appOrigin);
      //       print('Ergebnis von Rust: $outcome');
      //     } catch (e) {
      //       print('Fehler beim Starten des Receivers: $e');
      //     }
      //     Navigator.push(
      //         context,
      //         MaterialPageRoute(
      //             builder: (context) => MyHomePage(title: 'Caesar Transfer')));
      //   } else {}
      // } else {
      try {
        final outcome =
            await startRustReceiver(transfername: input, relay: appOrigin);
        print('Ergebnis von Rust: $outcome');
      } catch (e) {
        print('Fehler beim Starten des Receivers: $e');
      }
      Navigator.push(
          context,
          MaterialPageRoute(
              builder: (context) => MyHomePage(title: 'Caesar Transfer')));
    }
    // }
    print("Transfer startet with app_origin: $appOrigin");
  }

  Future<bool> _requestPermission(Permission permission) async {
    if (await permission.isGranted) {
      return true;
    } else {
      var result = await permission.request();
      if (result == PermissionStatus.granted) {
        return true;
      } else {
        return false;
      }
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Constants.backColor,
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            Text(
              widget.transferName,
              style: const TextStyle(color: Colors.white, fontSize: 24),
            ),
            const SizedBox(height: 32),
            QrImageView(
              data: widget.transferName,
              version: QrVersions.auto,
              size: 200,
              foregroundColor: Constants.highlightColor,
            ),
          ],
        ),
      ),
    );
  }
}