Add i18n basic support

assets/i18n/strings.i18n.json

@@ -0,0 +1,22 @@
+{
+    "appTitle": "RustSend",
+    "home": {
+        "title": "Home Page"
+    },
+    "setting": {
+        "title": "Settings",
+        "brightness": {
+            "title": "Brightness",
+            "subTitle": "Current mode: $mode",
+            "themeMode": {
+                "system": "Follow system",
+                "light": "Light mode",
+                "dark": "Dark mode"
+            }
+        },
+        "language": {
+            "title": "Language",
+            "subTitle": "Current language: $language"
+        }
+    }
+}

assets/i18n/strings_zh.i18n.json

@@ -0,0 +1,22 @@
+{
+    "appTitle": "锈船",
+    "home": {
+        "title": "主页"
+    },
+    "setting": {
+        "title": "设置",
+        "brightness": {
+            "title": "明暗",
+            "subTitle": "当前模式: $mode",
+            "themeMode": {
+                "system": "跟随系统",
+                "light": "浅色模式",
+                "dark": "深色模式"
+            }
+        },
+        "language": {
+            "title": "语言",
+            "subTitle": "当前语言: $language"
+        }
+    }
+}

build.yaml

@@ -0,0 +1,7 @@
+targets:
+  $default:
+    builders:
+      slang_build_runner:
+        options:
+          input_directory: assets/i18n
+          output_directory: lib/i18n # defaulting to lib/gen if input is outside of lib/

flutter_rust_bridge.yaml

@@ -1,2 +1,2 @@
 rust_input: rust/src/bridge/**/*.rs
-dart_output: lib/src/rust
+dart_output: lib/rust

integration_test/simple_test.dart

@@ -1,6 +1,6 @@
 import 'package:flutter_test/flutter_test.dart';
 import 'package:localsend_rs/main.dart';
-import 'package:localsend_rs/src/rust/frb_generated.dart';
+import 'package:localsend_rs/rust/frb_generated.dart';
 import 'package:integration_test/integration_test.dart';
 
 void main() {

lib/common/constants.dart

@@ -0,0 +1,11 @@
+class Language {
+  final String name;
+  final String localeName;
+
+  const Language(this.name, this.localeName);
+}
+
+const Map<String, Language> supportLanguages = {
+  "zh": Language("中文", "zh"),
+  "en": Language("English", "en"),
+};

lib/config_store.dart

@@ -0,0 +1,47 @@
+import 'dart:io';
+
+import 'package:flutter/material.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+class ConfigStore {
+  static ConfigStore? _instance;
+  static SharedPreferences? _prefs;
+
+  factory ConfigStore() {
+    if (_instance == null) {
+      throw Exception('AppSharedPrefs is not initialized. '
+          'Please call AppSharedPrefs.ensureInitialized before.');
+    }
+    return _instance!;
+  }
+
+  const ConfigStore._();
+
+  static ensureInitialized() async {
+    _prefs ??= await SharedPreferences.getInstance();
+    _instance ??= const ConfigStore._();
+  }
+
+  static const _themeKey = 'theme';
+  static const _localeKey = 'locale';
+
+  ThemeMode themeMode() {
+    final themeValue = _prefs!.getInt(_themeKey);
+    if (themeValue == null) return ThemeMode.system;
+
+    return ThemeMode.values[themeValue];
+  }
+
+  Future<void> updateThemeMode(ThemeMode theme) async {
+    await _prefs!.setInt(_themeKey, theme.index);
+  }
+
+  String locale() {
+    final localeValue = _prefs!.getString(_localeKey) ?? Platform.localeName;
+    return localeValue;
+  }
+
+  Future<void> updateLocale(String locale) async {
+    await _prefs!.setString(_localeKey, locale);
+  }
+}