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import 'dart:async';
import 'dart:convert';
import 'dart:io';
import 'package:flutter/services.dart';
import 'package:flutter_archive/flutter_archive.dart';
import 'package:hadi_hoda_flutter/core/constants/my_constants.dart';
import 'package:hadi_hoda_flutter/core/error_handler/my_exception.dart';
import 'package:hadi_hoda_flutter/core/network/http_request.dart';
import 'package:hadi_hoda_flutter/core/response/base_response.dart';
import 'package:hadi_hoda_flutter/features/level/data/model/level_model.dart';
import 'package:hadi_hoda_flutter/features/level/domain/entity/level_entity.dart';
import 'package:hive/hive.dart';
import 'package:path_provider/path_provider.dart';
abstract class IIntroDatasource {
Future<void> saveLevels();
Future<void> extractData();
Stream<double> loadingStream();
}
class IntroDatasourceImpl implements IIntroDatasource {
final IHttpRequest httpRequest;
final StreamController<double> streamController = StreamController<double>.broadcast();
IntroDatasourceImpl(this.httpRequest);
@override
Future<void> saveLevels() async {
try {
final Box<LevelEntity> levelBox = Hive.box(MyConstants.levelBox);
if (levelBox.isEmpty) {
final String levelAssets = await rootBundle.loadString(
'assets/json/levels.json',
);
final dynamic response = jsonDecode(levelAssets);
final List<LevelEntity> levelList = BaseResponse.getDataList<LevelEntity>(
response?['result'],
(json) => LevelModel.fromJson(json),
);
await levelBox.addAll(levelList);
}
} catch (e) {
throw MyException(errorMessage: '$e');
}
}
@override
Future<void> extractData() async {
try {
final Directory dir = await getApplicationDocumentsDirectory();
final File file = File('${dir.path}/data.zip');
if (!(await file.exists())) {
final ByteData assetFile = await rootBundle.load('assets/data/data.zip');
await file.create(recursive: true);
await file.writeAsBytes(
assetFile.buffer.asUint8List(
assetFile.offsetInBytes,
assetFile.lengthInBytes,
),
flush: true,
);
await ZipFile.extractToDirectory(
zipFile: file,
destinationDir: dir,
onExtracting: (zipEntry, progress) {
streamController.add(progress);
return ZipFileOperation.includeItem;
},
);
} else {
streamController.add(20);
await Future.delayed(Duration(milliseconds: 150));
streamController.add(40);
await Future.delayed(Duration(milliseconds: 150));
streamController.add(60);
await Future.delayed(Duration(milliseconds: 150));
streamController.add(80);
await Future.delayed(Duration(milliseconds: 150));
streamController.add(100);
await Future.delayed(Duration(milliseconds: 150));
}
} catch (e) {
throw MyException(errorMessage: '$e');
}
}
@override
Stream<double> loadingStream() => streamController.stream;
}