import 'dart:convert';
import 'dart:typed_data';

import 'package:file_picker/file_picker.dart';

class BackupFileService {
  Future<bool> save(String json, String name) async =>
      await FilePicker.saveFile(
        dialogTitle: 'Datensicherung speichern',
        fileName: name,
        bytes: Uint8List.fromList(utf8.encode(json)),
      ) !=
      null;

  Future<String?> open() async {
    final file = await FilePicker.pickFile(
      dialogTitle: 'Datensicherung auswählen',
      type: FileType.custom,
      allowedExtensions: ['json'],
    );
    if (file == null) return null;
    return utf8.decode(await file.readAsBytes());
  }
}