together_mobile/lib/database/hive_database.dart

65 lines
2.0 KiB
Dart

import 'dart:convert';
import 'package:hive_flutter/hive_flutter.dart';
import 'package:flutter_secure_storage/flutter_secure_storage.dart';
import 'package:together_mobile/database/box_type.dart';
import 'package:together_mobile/models/init_get_it.dart';
import 'package:together_mobile/models/user_model.dart';
import 'package:together_mobile/utils/app_dir.dart';
void initDatabase() async {
List<int> encryptionKeyUint8List = await getEncryptKey();
await Hive.initFlutter(await getBoxDir());
Box<ChatSetting> chatSettingBox =
await Hive.openBox<ChatSetting>('chat_setting');
final openedChats = chatSettingBox.values.where((element) => element.isOpen);
for (var chatBox in openedChats) {
Hive.openBox<MessageT>(
'message_${chatBox.contactId}',
encryptionCipher: HiveAesCipher(encryptionKeyUint8List),
compactionStrategy: (entries, deletedEntries) => entries > 200,
);
}
}
void registerAdapter() {
Hive.registerAdapter(ChatSettingAdapter());
Hive.registerAdapter(MessageTAdapter());
}
Future<List<int>> getEncryptKey() async {
final id = getIt.get<UserAccount>().id;
const secureStorage = FlutterSecureStorage();
final encryptionKeyString = await secureStorage.read(key: 'encryptKey:$id');
if (encryptionKeyString == null) {
final key = Hive.generateSecureKey();
await secureStorage.write(
key: 'encryptKey:$id',
value: base64Encode(key),
);
}
String? key = await secureStorage.read(key: 'encryptKey:$id');
final encryptionKeyUint8List = base64Url.decode(key!);
return encryptionKeyUint8List;
}
void openNewMessageBox(String contactId) async {
final encryptionKeyUint8List = await getEncryptKey();
var chatSettingBox = Hive.box<ChatSetting>('chat_setting');
chatSettingBox
.add(ChatSetting(contactId, false, true, false, DateTime.now(), 0));
await Hive.openLazyBox(
'message_$contactId',
encryptionCipher: HiveAesCipher(encryptionKeyUint8List),
compactionStrategy: (entries, deletedEntries) => entries > 200,
);
}