Add import export functionality

lib/models/history/search.dart

@@ -86,3 +86,35 @@ Future<void> addSearchToDatabase({
             .toJson(),
   );
 }
+
+List<Search> mergeSearches(List<Search> a, List<Search> b) {
+  final List<Search> result = [...a];
+
+  for (final Search search in b) {
+    late final Iterable<Search> matchingEntry;
+    if (search.isKanji) {
+      matchingEntry =
+          result.where((e) => e.kanjiQuery?.kanji == search.kanjiQuery!.kanji);
+    } else {
+      matchingEntry =
+          result.where((e) => e.wordQuery?.query == search.wordQuery!.query);
+    }
+
+    if (matchingEntry.isEmpty) {
+      result.add(search);
+      continue;
+    }
+
+    final timestamps = [...matchingEntry.first.timestamps];
+    matchingEntry.first.timestamps.clear();
+    matchingEntry.first.timestamps.addAll(
+      (timestamps
+            ..addAll(search.timestamps)
+            ..sort())
+          .toSet()
+          .toList(),
+    );
+  }
+
+  return result;
+}

lib/screens/settings.dart

@@ -1,13 +1,22 @@
+import 'dart:convert';
+import 'dart:io';
+
 import 'package:confirm_dialog/confirm_dialog.dart';
+import 'package:file_picker/file_picker.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_settings_ui/flutter_settings_ui.dart';
 import 'package:mdi/mdi.dart';
+import 'package:path_provider/path_provider.dart';
+import 'package:sembast/sembast_io.dart';
+import 'package:sembast/utils/sembast_import_export.dart';
 
 import '../bloc/theme/theme_bloc.dart';
 import '../components/common/denshi_jisho_background.dart';
 import '../models/history/search.dart';
 import '../routing/routes.dart';
+import '../services/database.dart';
 import '../services/open_webpage.dart';
+import '../services/snackbar.dart';
 import '../settings.dart';
 
 class SettingsView extends StatefulWidget {
@@ -19,6 +28,8 @@ class SettingsView extends StatefulWidget {
 
 class _SettingsViewState extends State<SettingsView> {
   final Database db = GetIt.instance.get<Database>();
+  bool dataExportIsLoading = false;
+  bool dataImportIsLoading = false;
 
   Future<void> clearHistory(context) async {
     final bool userIsSure = await confirm(context);
@@ -40,6 +51,92 @@ class _SettingsViewState extends State<SettingsView> {
     setState(() => autoThemeEnabled = b);
   }
 
+  Future<void> changeFont(context) async {
+    final int? i = await _chooseFromList(
+      list: [for (final font in JapaneseFont.values) font.name],
+      chosen: japaneseFont.index,
+    )(context);
+    if (i != null)
+      setState(() {
+        japaneseFont = JapaneseFont.values[i];
+      });
+  }
+
+  /// Can assume Android for time being
+  Future<void> exportData(context) async {
+    setState(() => dataExportIsLoading = true);
+
+    final path = (await getExternalStorageDirectory())!;
+    final dbData = await exportDatabase(db);
+    final file = File('${path.path}/jisho_data.json');
+    file.createSync(recursive: true);
+    await file.writeAsString(jsonEncode(dbData));
+
+    setState(() => dataExportIsLoading = false);
+    ScaffoldMessenger.of(context)
+        .showSnackBar(SnackBar(content: Text('Data exported to ${file.path}')));
+  }
+
+  /// Can assume Android for time being
+  Future<void> importData(context) async {
+    setState(() => dataImportIsLoading = true);
+
+    final path = await FilePicker.platform.pickFiles(
+      type: FileType.custom,
+      allowedExtensions: ['json'],
+    );
+    final file = File(path!.files[0].path!);
+
+    final List<Search> prevSearches = (await Search.store.find(db))
+        .map((e) => Search.fromJson(e.value! as Map<String, Object?>))
+        .toList();
+    late final List<Search> importedSearches;
+    try {
+      importedSearches = ((((jsonDecode(await file.readAsString())
+                  as Map<String, Object?>)['stores']! as List)
+              .map((e) => e as Map)
+              .where((e) => e['name'] == 'search')
+              .first)['values'] as List)
+          .map((item) => Search.fromJson(item))
+          .toList();
+    } catch (e) {
+      debugPrint(e.toString());
+      showSnackbar(
+        context,
+        "Couldn't read file. Did you choose the right one?",
+      );
+      return;
+    }
+
+    final List<Search> mergedSearches =
+        mergeSearches(prevSearches, importedSearches);
+
+    // print(mergedSearches);
+
+    await GetIt.instance.get<Database>().close();
+    GetIt.instance.unregister<Database>();
+
+    final importedDb = await importDatabase(
+      {
+        'sembast_export': 1,
+        'version': 1,
+        'stores': [
+          {
+            'name': 'search',
+            'keys': [for (var i = 1; i <= mergedSearches.length; i++) i],
+            'values': mergedSearches.map((e) => e.toJson()).toList(),
+          }
+        ]
+      },
+      databaseFactoryIo,
+      await databasePath(),
+    );
+    GetIt.instance.registerSingleton<Database>(importedDb);
+
+    setState(() => dataImportIsLoading = false);
+    showSnackbar(context, 'Data imported successfully');
+  }
+
   Future<int?> Function(BuildContext) _chooseFromList({
     required List<String> list,
     int? chosen,
@@ -89,9 +186,7 @@ class _SettingsViewState extends State<SettingsView> {
                   SettingsTile.switchTile(
                     title: 'Use romaji',
                     leading: const Icon(Mdi.alphabetical),
-                    onToggle: (b) {
-                      setState(() => romajiEnabled = b);
-                    },
+                    onToggle: (b) => setState(() => romajiEnabled = b),
                     switchValue: romajiEnabled,
                     theme: theme,
                     switchActiveColor: AppTheme.jishoGreen.background,
@@ -99,9 +194,7 @@ class _SettingsViewState extends State<SettingsView> {
                   SettingsTile.switchTile(
                     title: 'Extensive search',
                     leading: const Icon(Icons.downloading),
-                    onToggle: (b) {
-                      setState(() => extensiveSearchEnabled = b);
-                    },
+                    onToggle: (b) => setState(() => extensiveSearchEnabled = b),
                     switchValue: extensiveSearchEnabled,
                     theme: theme,
                     switchActiveColor: AppTheme.jishoGreen.background,
@@ -114,18 +207,7 @@ class _SettingsViewState extends State<SettingsView> {
                   SettingsTile(
                     title: 'Japanese font',
                     leading: const Icon(Icons.format_size),
-                    onPressed: (context) async {
-                      final int? i = await _chooseFromList(
-                        list: [
-                          for (final font in JapaneseFont.values) font.name
-                        ],
-                        chosen: japaneseFont.index,
-                      )(context);
-                      if (i != null)
-                        setState(() {
-                          japaneseFont = JapaneseFont.values[i];
-                        });
-                    },
+                    onPressed: changeFont,
                     theme: theme,
                     trailing: Text(japaneseFont.name),
                     // subtitle:
@@ -134,6 +216,7 @@ class _SettingsViewState extends State<SettingsView> {
                   ),
                 ],
               ),
+
               SettingsSection(
                 title: 'Theme',
                 titleTextStyle: _titleTextStyle,
@@ -161,6 +244,7 @@ class _SettingsViewState extends State<SettingsView> {
                   ),
                 ],
               ),
+
               // TODO: This will be left commented until caching is implemented
               // SettingsSection(
               //   title: 'Cache',
@@ -196,14 +280,31 @@ class _SettingsViewState extends State<SettingsView> {
               //     ),
               //   ],
               // ),
+
               SettingsSection(
                 title: 'Data',
                 titleTextStyle: _titleTextStyle,
                 tiles: <SettingsTile>[
+                  SettingsTile(
+                    leading: const Icon(Icons.file_upload),
+                    title: 'Import Data',
+                    onPressed: importData,
+                    enabled: Platform.isAndroid,
+                    subtitle:
+                        Platform.isAndroid ? null : 'Not available on iOS yet',
+                    subtitleWidget: dataImportIsLoading
+                        ? const LinearProgressIndicator()
+                        : null,
+                  ),
                   SettingsTile(
                     leading: const Icon(Icons.file_download),
                     title: 'Export Data',
-                    enabled: false,
+                    enabled: Platform.isAndroid,
+                    subtitle:
+                        Platform.isAndroid ? null : 'Not available on iOS yet',
+                    subtitleWidget: dataExportIsLoading
+                        ? const LinearProgressIndicator()
+                        : null,
                   ),
                   SettingsTile(
                     leading: const Icon(Icons.delete),
@@ -220,6 +321,7 @@ class _SettingsViewState extends State<SettingsView> {
                   )
                 ],
               ),
+
               SettingsSection(
                 title: 'Info',
                 titleTextStyle: _titleTextStyle,

lib/services/database.dart

@@ -6,10 +6,14 @@ import 'package:path_provider/path_provider.dart';
 import 'package:sembast/sembast.dart';
 import 'package:sembast/sembast_io.dart';
 
-Future<void> setupDatabase() async {
+Future<String> databasePath() async {
   final Directory appDocDir = await getApplicationDocumentsDirectory();
   if (!appDocDir.existsSync()) appDocDir.createSync(recursive: true);
+  return join(appDocDir.path, 'sembast.db');
+}
+
+Future<void> setupDatabase() async {
   final Database database =
-      await databaseFactoryIo.openDatabase(join(appDocDir.path, 'sembast.db'));
+      await databaseFactoryIo.openDatabase(await databasePath());
   GetIt.instance.registerSingleton<Database>(database);
 }

lib/services/snackbar.dart

@@ -0,0 +1,4 @@
+import 'package:flutter/material.dart';
+
+void showSnackbar(BuildContext context, String text) =>
+    ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(text)));

pubspec.lock

@@ -7,14 +7,14 @@ packages:
       name: _fe_analyzer_shared
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "33.0.0"
+    version: "31.0.0"
   analyzer:
     dependency: transitive
     description:
       name: analyzer
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.1.0"
+    version: "2.8.0"
   animated_size_and_fade:
     dependency: "direct main"
     description:
@@ -28,7 +28,7 @@ packages:
       name: archive
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.1.8"
+    version: "3.3.0"
   args:
     dependency: transitive
     description:
@@ -56,7 +56,7 @@ packages:
       name: bloc
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "8.0.2"
+    version: "8.0.3"
   boolean_selector:
     dependency: transitive
     description:
@@ -70,7 +70,7 @@ packages:
       name: build
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.2.1"
+    version: "2.3.0"
   build_config:
     dependency: transitive
     description:
@@ -84,7 +84,7 @@ packages:
       name: build_daemon
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.0.1"
+    version: "3.1.0"
   build_resolvers:
     dependency: transitive
     description:
@@ -98,7 +98,7 @@ packages:
       name: build_runner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.7"
+    version: "2.1.10"
   build_runner_core:
     dependency: transitive
     description:
@@ -119,7 +119,7 @@ packages:
       name: built_value
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "8.1.3"
+    version: "8.2.3"
   characters:
     dependency: transitive
     description:
@@ -175,7 +175,7 @@ packages:
       name: confirm_dialog
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.0"
+    version: "1.0.1"
   convert:
     dependency: transitive
     description:
@@ -183,13 +183,20 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.1"
+  coverage:
+    dependency: transitive
+    description:
+      name: coverage
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.3"
   crypto:
     dependency: transitive
     description:
       name: crypto
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.0.1"
+    version: "3.0.2"
   csslib:
     dependency: transitive
     description:
@@ -232,6 +239,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "6.1.2"
+  file_picker:
+    dependency: "direct main"
+    description:
+      name: file_picker
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.5.1"
   fixnum:
     dependency: transitive
     description:
@@ -264,7 +278,14 @@ packages:
       name: flutter_native_splash
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.3.3"
+    version: "2.1.6"
+  flutter_plugin_android_lifecycle:
+    dependency: transitive
+    description:
+      name: flutter_plugin_android_lifecycle
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.5"
   flutter_settings_ui:
     dependency: "direct main"
     description:
@@ -351,7 +372,7 @@ packages:
       name: http_multi_server
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.0.1"
+    version: "3.2.0"
   http_parser:
     dependency: transitive
     description:
@@ -365,7 +386,7 @@ packages:
       name: image
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.1.0"
+    version: "3.1.3"
   io:
     dependency: transitive
     description:
@@ -386,28 +407,35 @@ packages:
       name: json_annotation
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.4.0"
+    version: "4.5.0"
   just_audio:
     dependency: "direct main"
     description:
       name: just_audio
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.9.18"
+    version: "0.9.21"
   just_audio_platform_interface:
     dependency: transitive
     description:
       name: just_audio_platform_interface
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.0.0"
+    version: "4.1.0"
   just_audio_web:
     dependency: transitive
     description:
       name: just_audio_web
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.3"
+    version: "0.4.7"
+  lint:
+    dependency: transitive
+    description:
+      name: lint
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.8.2"
   logging:
     dependency: transitive
     description:
@@ -422,6 +450,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.12.11"
+  material_color_utilities:
+    dependency: transitive
+    description:
+      name: material_color_utilities
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.3"
   mdi:
     dependency: "direct main"
     description:
@@ -442,7 +477,7 @@ packages:
       name: mime
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.1"
+    version: "1.0.2"
   nested:
     dependency: transitive
     description:
@@ -450,6 +485,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.0"
+  node_preamble:
+    dependency: transitive
+    description:
+      name: node_preamble
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.1"
   package_config:
     dependency: transitive
     description:
@@ -484,21 +526,21 @@ packages:
       name: path_provider
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.8"
+    version: "2.0.9"
   path_provider_android:
     dependency: transitive
     description:
       name: path_provider_android
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.11"
+    version: "2.0.13"
   path_provider_ios:
     dependency: transitive
     description:
       name: path_provider_ios
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.7"
+    version: "2.0.8"
   path_provider_linux:
     dependency: transitive
     description:
@@ -575,7 +617,7 @@ packages:
       name: pub_semver
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0"
+    version: "2.1.1"
   pubspec_parse:
     dependency: transitive
     description:
@@ -596,42 +638,84 @@ packages:
       name: sembast
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.1.1+1"
+    version: "3.2.0"
+  share_plus:
+    dependency: "direct main"
+    description:
+      name: share_plus
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.0.4"
+  share_plus_linux:
+    dependency: transitive
+    description:
+      name: share_plus_linux
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.0"
+  share_plus_macos:
+    dependency: transitive
+    description:
+      name: share_plus_macos
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.0"
+  share_plus_platform_interface:
+    dependency: transitive
+    description:
+      name: share_plus_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.2"
+  share_plus_web:
+    dependency: transitive
+    description:
+      name: share_plus_web
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.0"
+  share_plus_windows:
+    dependency: transitive
+    description:
+      name: share_plus_windows
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.0"
   shared_preferences:
     dependency: "direct main"
     description:
       name: shared_preferences
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.12"
+    version: "2.0.13"
   shared_preferences_android:
     dependency: transitive
     description:
       name: shared_preferences_android
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.10"
+    version: "2.0.11"
   shared_preferences_ios:
     dependency: transitive
     description:
       name: shared_preferences_ios
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.9"
+    version: "2.1.0"
   shared_preferences_linux:
     dependency: transitive
     description:
       name: shared_preferences_linux
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.4"
+    version: "2.1.0"
   shared_preferences_macos:
     dependency: transitive
     description:
       name: shared_preferences_macos
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.2"
+    version: "2.0.3"
   shared_preferences_platform_interface:
     dependency: transitive
     description:
@@ -652,14 +736,28 @@ packages:
       name: shared_preferences_windows
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.4"
+    version: "2.1.0"
   shelf:
     dependency: transitive
     description:
       name: shelf
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0"
+    version: "1.3.0"
+  shelf_packages_handler:
+    dependency: transitive
+    description:
+      name: shelf_packages_handler
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.0"
+  shelf_static:
+    dependency: transitive
+    description:
+      name: shelf_static
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
   shelf_web_socket:
     dependency: transitive
     description:
@@ -679,6 +777,20 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.99"
+  source_map_stack_trace:
+    dependency: transitive
+    description:
+      name: source_map_stack_trace
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.0"
+  source_maps:
+    dependency: transitive
+    description:
+      name: source_maps
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.10.10"
   source_span:
     dependency: transitive
     description:
@@ -720,7 +832,7 @@ packages:
       name: synchronized
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.0.0"
+    version: "3.0.0+2"
   term_glyph:
     dependency: transitive
     description:
@@ -728,13 +840,27 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.0"
+  test:
+    dependency: "direct main"
+    description:
+      name: test
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.19.5"
   test_api:
     dependency: transitive
     description:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.3"
+    version: "0.4.8"
+  test_core:
+    dependency: transitive
+    description:
+      name: test_core
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.4.9"
   timing:
     dependency: transitive
     description:
@@ -769,35 +895,35 @@ packages:
       name: url_launcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "6.0.18"
+    version: "6.1.0"
   url_launcher_android:
     dependency: transitive
     description:
       name: url_launcher_android
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "6.0.14"
+    version: "6.0.16"
   url_launcher_ios:
     dependency: transitive
     description:
       name: url_launcher_ios
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "6.0.14"
+    version: "6.0.15"
   url_launcher_linux:
     dependency: transitive
     description:
       name: url_launcher_linux
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.2"
+    version: "3.0.0"
   url_launcher_macos:
     dependency: transitive
     description:
       name: url_launcher_macos
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.2"
+    version: "3.0.0"
   url_launcher_platform_interface:
     dependency: transitive
     description:
@@ -811,21 +937,21 @@ packages:
       name: url_launcher_web
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.6"
+    version: "2.0.9"
   url_launcher_windows:
     dependency: transitive
     description:
       name: url_launcher_windows
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.2"
+    version: "3.0.0"
   uuid:
     dependency: transitive
     description:
       name: uuid
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.0.5"
+    version: "3.0.6"
   vector_math:
     dependency: transitive
     description:
@@ -833,6 +959,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.1"
+  vm_service:
+    dependency: transitive
+    description:
+      name: vm_service
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "7.5.0"
   watcher:
     dependency: transitive
     description:
@@ -846,21 +979,28 @@ packages:
       name: web_socket_channel
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0"
+    version: "2.2.0"
+  webkit_inspection_protocol:
+    dependency: transitive
+    description:
+      name: webkit_inspection_protocol
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.0"
   win32:
     dependency: transitive
     description:
       name: win32
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.3.3"
+    version: "2.5.2"
   xdg_directories:
     dependency: transitive
     description:
       name: xdg_directories
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.0"
+    version: "0.2.0+1"
   xml:
     dependency: transitive
     description:
@@ -876,5 +1016,5 @@ packages:
     source: hosted
     version: "3.1.0"
 sdks:
-  dart: ">=2.15.1 <3.0.0"
-  flutter: ">=2.5.0"
+  dart: ">=2.16.0 <3.0.0"
+  flutter: ">=2.10.0"

pubspec.yaml

@@ -10,9 +10,11 @@ dependencies:
   collection: ^1.15.0
   confirm_dialog: ^1.0.0
   division: ^0.9.0
+  file_picker: ^4.5.1
   flutter:
     sdk: flutter
   flutter_bloc: ^8.0.0
+  flutter_settings_ui: ^2.0.1
   flutter_slidable: ^1.1.0
   flutter_svg: ^1.0.2
   get_it: ^7.2.0
@@ -22,7 +24,8 @@ dependencies:
   path: ^1.8.0
   path_provider: ^2.0.2
   sembast: ^3.1.1
-  flutter_settings_ui: ^2.0.1
+  share_plus: ^4.0.4
+  test: ^1.19.5
   shared_preferences: ^2.0.6
   signature: ^5.0.0
   unofficial_jisho_api: ^2.0.4
@@ -32,8 +35,8 @@ dev_dependencies:
   build_runner: ^2.0.6
   flutter_test:
     sdk: flutter
-  flutter_native_splash: ^1.2.0
-  flutter_launcher_icons: "^0.9.1"
+  flutter_native_splash: ^2.1.6
+  flutter_launcher_icons: "^0.9.2"
 
 flutter_icons:
   android: "launcher_icon"

test/models/history_test.dart

@@ -0,0 +1,34 @@
+import 'package:jisho_study_tool/models/history/kanji_query.dart';
+import 'package:jisho_study_tool/models/history/search.dart';
+import 'package:jisho_study_tool/models/history/word_query.dart';
+import 'package:test/test.dart';
+
+void main() {
+  group('Search', () {
+    final List<Search> searches = [
+      Search.fromKanjiQuery(kanjiQuery: KanjiQuery(kanji: '何')),
+      Search.fromWordQuery(wordQuery: WordQuery(query: 'テスト')),
+      Search.fromJson({'timestamps':[1648658269960],'lastTimestamp':1648658269960,'wordQuery':null,'kanjiQuery':{'kanji':'日'}}),
+      Search.fromJson({'timestamps':[1648674967535],'lastTimestamp':1648674967535,'wordQuery':{'query':'黙る'},'kanjiQuery':null}),
+      Search.fromJson({'timestamps':[1649079907766],'lastTimestamp':1649079907766,'wordQuery':{'query':'seal'},'kanjiQuery':null}),
+      Search.fromJson({'timestamps':[1649082072981],'lastTimestamp':1649082072981,'wordQuery':{'query':'感涙屋'},'kanjiQuery':null}),
+      Search.fromJson({'timestamps':[1644951726777,1644951732749],'lastTimestamp':1644951732749,'wordQuery':{'query':'呑める'},'kanjiQuery':null}),
+    ];
+    test("mergeSearches with empty lists doesn't add data", () {
+      final List<Search> merged1 = mergeSearches(searches, []);
+      final List<Search> merged2 = mergeSearches([], searches);
+      for (int i = 0; i < searches.length; i++) {
+        expect(merged1[i], searches[i]);
+        expect(merged2[i], searches[i]);
+      }
+    });
+
+    test("mergeSearches with the same list doesn't add data", () {
+      final List<Search> merged = mergeSearches(searches, searches);
+      for (int i = 0; i < searches.length; i++) {
+        expect(merged[i], searches[i]);
+      }
+      expect(mergeSearches(searches, searches), searches);
+    });
+  });
+}