chore fix

Atomx.Admin/Atomx.Admin.Client/Services/LanguageProvider.cs

@@ -0,0 +1,129 @@
+using Microsoft.AspNetCore.Components;
+using Microsoft.JSInterop;
+using System.Globalization;
+
+namespace Atomx.Admin.Client.Services
+{
+    /// <summary>
+    /// 语言提供者服务
+    /// </summary>
+    public class LanguageProvider
+    {
+        private readonly IJSRuntime _jsRuntime;
+        private readonly NavigationManager _navigationManager;
+        private string _currentLanguage = "zh-Hans";
+
+        public event Action? OnLanguageChanged;
+
+        public LanguageProvider(IJSRuntime jsRuntime, NavigationManager navigationManager)
+        {
+            _jsRuntime = jsRuntime;
+            _navigationManager = navigationManager;
+        }
+
+        public string CurrentLanguage
+        {
+            get => _currentLanguage;
+            private set
+            {
+                if (_currentLanguage != value)
+                {
+                    _currentLanguage = value;
+
+                    // 设置全局线程文化，确保 IStringLocalizer 等在随后的渲染中读取到新文化
+                    try
+                    {
+                        var ci = new CultureInfo(value);
+                        CultureInfo.DefaultThreadCurrentCulture = ci;
+                        CultureInfo.DefaultThreadCurrentUICulture = ci;
+                    }
+                    catch
+                    {
+                        // 忽略无效 culture 字符串
+                    }
+
+                    OnLanguageChanged?.Invoke();
+                }
+            }
+        }
+
+        public List<string> SupportedLanguages { get; } = new()
+    {
+        "zh-Hans", // 简体中文
+        "en-US"    // 英文（美国）
+    };
+
+        /// <summary>
+        /// 初始化语言
+        /// </summary>
+        public async Task InitializeAsync()
+        {
+            // 尝试从本地存储获取保存的语言
+            try
+            {
+                var savedLanguage = await _jsRuntime.InvokeAsync<string>("localStorage.getItem", "preferred-language");
+                if (!string.IsNullOrEmpty(savedLanguage) && SupportedLanguages.Contains(savedLanguage))
+                {
+                    CurrentLanguage = savedLanguage;
+                }
+                else
+                {
+                    // 从浏览器获取语言
+                    var browserLanguage = await _jsRuntime.InvokeAsync<string>("getBrowserLanguage");
+                    CurrentLanguage = GetSupportedLanguage(browserLanguage);
+                }
+            }
+            catch
+            {
+                // JS互操作可能不可用（在预渲染时）
+                CurrentLanguage = "zh-Hans";
+            }
+        }
+
+        /// <summary>
+        /// 切换语言
+        /// </summary>
+        public async Task ChangeLanguageAsync(string languageCode)
+        {
+            if (SupportedLanguages.Contains(languageCode) && CurrentLanguage != languageCode)
+            {
+                CurrentLanguage = languageCode;
+
+                // 保存到本地存储
+                try
+                {
+                    await _jsRuntime.InvokeVoidAsync("localStorage.setItem", "preferred-language", languageCode);
+                }
+                catch
+                {
+                    // 忽略错误
+                }
+
+                // setter 已触发 OnLanguageChanged
+            }
+        }
+
+        /// <summary>
+        /// 获取支持的语言
+        /// </summary>
+        private string GetSupportedLanguage(string browserLanguage)
+        {
+            if (string.IsNullOrEmpty(browserLanguage))
+                return "zh-Hans";
+
+            // 检查完全匹配
+            if (SupportedLanguages.Contains(browserLanguage))
+                return browserLanguage;
+
+            // 检查中性语言匹配
+            var neutralLanguage = browserLanguage.Split('-')[0];
+            foreach (var supported in SupportedLanguages)
+            {
+                if (supported.StartsWith(neutralLanguage))
+                    return supported;
+            }
+
+            return "zh-Hans"; // 默认语言
+        }
+    }
+}