refactor: Remove moor

lib/utils/matrix_sdk_extensions.dart/flutter_famedly_sdk_hive_database.dart

@@ -0,0 +1,105 @@
+import 'dart:convert';
+import 'dart:io';
+import 'dart:typed_data';
+
+import 'package:matrix/matrix.dart';
+import 'package:flutter/foundation.dart';
+import 'package:flutter/services.dart';
+import 'package:flutter_secure_storage/flutter_secure_storage.dart';
+import 'package:hive/hive.dart';
+import 'package:hive_flutter/hive_flutter.dart';
+import 'package:path_provider/path_provider.dart';
+
+class FlutterFamedlySdkHiveDatabase extends FamedlySdkHiveDatabase {
+  FlutterFamedlySdkHiveDatabase(String name, {HiveCipher encryptionCipher})
+      : super(
+          name,
+          encryptionCipher: encryptionCipher,
+        );
+
+  static bool _hiveInitialized = false;
+  static const String _hiveCipherStorageKey = 'hive_encryption_key';
+
+  static Future<FamedlySdkHiveDatabase> hiveDatabaseBuilder(
+      Client client) async {
+    if (!kIsWeb && !_hiveInitialized) {
+      Logs().i('Init Hive database...');
+      if (!kIsWeb && Platform.isLinux) {
+        Hive.init((await getApplicationSupportDirectory()).path);
+      } else {
+        await Hive.initFlutter();
+      }
+      _hiveInitialized = true;
+    }
+    HiveCipher hiverCipher;
+    try {
+      // Workaround for secure storage is calling Platform.operatingSystem on web
+      if (kIsWeb) throw MissingPluginException();
+
+      final secureStorage = const FlutterSecureStorage();
+      final containsEncryptionKey =
+          await secureStorage.containsKey(key: _hiveCipherStorageKey);
+      if (!containsEncryptionKey) {
+        final key = Hive.generateSecureKey();
+        await secureStorage.write(
+          key: _hiveCipherStorageKey,
+          value: base64UrlEncode(key),
+        );
+      }
+
+      final encryptionKey = base64Url.decode(
+        await secureStorage.read(key: _hiveCipherStorageKey),
+      );
+      hiverCipher = HiveAesCipher(encryptionKey);
+    } on MissingPluginException catch (_) {
+      Logs().i('Hive encryption is not supported on this platform');
+    }
+    final db = FlutterFamedlySdkHiveDatabase(
+      client.clientName,
+      encryptionCipher: hiverCipher,
+    );
+    Logs().i('Open Hive database...');
+    await db.open();
+    Logs().i('Hive database is ready!');
+    return db;
+  }
+
+  @override
+  int get maxFileSize => supportsFileStoring ? 100 * 1024 * 1024 : 0;
+  @override
+  bool get supportsFileStoring =>
+      !kIsWeb && (Platform.isIOS || Platform.isAndroid);
+
+  Future<String> _getFileStoreDirectory() async {
+    try {
+      return (await getApplicationDocumentsDirectory()).path;
+    } on MissingPlatformDirectoryException catch (_) {
+      return (await getDownloadsDirectory()).path;
+    }
+  }
+
+  @override
+  Future<Uint8List> getFile(String mxcUri) async {
+    if (!supportsFileStoring) return null;
+    final tempDirectory = await _getFileStoreDirectory();
+    final file = File('$tempDirectory/${Uri.encodeComponent(mxcUri)}');
+    if (await file.exists() == false) return null;
+    final bytes = await file.readAsBytes();
+    return bytes;
+  }
+
+  @override
+  Future storeFile(String mxcUri, Uint8List bytes, int time) async {
+    if (!supportsFileStoring) return null;
+    final tempDirectory = await _getFileStoreDirectory();
+    final file = File('$tempDirectory/${Uri.encodeComponent(mxcUri)}');
+    if (await file.exists()) return;
+    await file.writeAsBytes(bytes);
+    return;
+  }
+
+  @override
+  Future<void> clear(int clientId) async {
+    await super.clear(clientId);
+  }
+}