添加项目文件。

UIShare/GlobalVariable/ConfigService.cs

@@ -0,0 +1,139 @@
+using System;
+using System.Collections.ObjectModel;
+using System.IO;
+using System.Linq;
+using Newtonsoft.Json;
+using Logger;
+using UIShare.UIViewModel;
+
+namespace UIShare.GlobalVariable
+{
+    public static class ConfigService
+    {
+        private static readonly object _fileLock = new();
+        /// <summary>
+        /// 根据标题查询配置文件是否存在
+        /// </summary>
+        public static bool IsExit(string title)
+        {
+            if (string.IsNullOrEmpty(title))
+            {
+                return false;
+            }
+
+            string configPath = Path.Combine(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "ACP"), $"{title}.json");
+
+            if (!File.Exists(configPath))
+            {
+                return false;
+            }
+            return true;
+        }
+        /// <summary>
+        /// 根据标题（格子标识）加载独立的配置文件
+        /// </summary>
+        public static SystemConfig Load(string title)
+        {
+            if (string.IsNullOrEmpty(title))
+            {
+                throw new ArgumentException("配置标题不能为空", nameof(title));
+            }
+
+            // 临时实例化一个对象以获取默认的 SystemPath
+            var dummy = new SystemConfig();
+            string configPath = Path.Combine(dummy.SystemPath, $"{title}.json");
+
+            if (!File.Exists(configPath))
+            {
+                // 如果不存在，创建一个带 Title 的默认配置并保存
+                var defaultConfig = new SystemConfig { Title = title };
+                EnsureDefaultCanDevice(defaultConfig);
+                Save(defaultConfig);
+                return defaultConfig;
+            }
+
+            lock (_fileLock)
+            {
+                try
+                {
+                    string json = File.ReadAllText(configPath);
+                    var config = JsonConvert.DeserializeObject<SystemConfig>(json, new JsonSerializerSettings
+                    {
+                        TypeNameHandling = TypeNameHandling.All
+                    });
+
+                    config ??= new SystemConfig { Title = title };
+                    EnsureDefaultCanDevice(config);
+                    return config;
+                }
+                catch (Exception ex)
+                {
+                    LoggerHelper.ErrorWithNotify(title, $"格子 [{title}] 配置加载失败: {ex.Message}");
+                    var fallback = new SystemConfig { Title = title };
+                    EnsureDefaultCanDevice(fallback);
+                    return fallback;
+                }
+            }
+        }
+
+        /// <summary>
+        /// 保存指定的配置实例
+        /// </summary>
+        public static void Save(SystemConfig config)
+        {
+            if (config == null || string.IsNullOrEmpty(config.Title)) return;
+
+            lock (_fileLock)
+            {
+                try
+                {
+                    if (!Directory.Exists(config.SystemPath))
+                        Directory.CreateDirectory(config.SystemPath);
+
+                    string configPath = Path.Combine(config.SystemPath, $"{config.Title}.json");
+
+                    string json = JsonConvert.SerializeObject(config, Formatting.Indented, new JsonSerializerSettings
+                    {
+                        TypeNameHandling = TypeNameHandling.All
+                    });
+
+                    File.WriteAllText(configPath, json);
+                    LoggerHelper.InfoWithNotify(config.Title, $"配置 [{config.Title}] 已保存。");
+                }
+                catch (Exception ex)
+                {
+                    LoggerHelper.ErrorWithNotify(config.Title, $"配置 [{config.Title}] 保存失败: {ex.Message}");
+                }
+            }
+        }
+
+        /// <summary>
+        /// 确保配置中至少包含一个 CAN 设备（对应 SystemConfig.CANFD）。
+        /// 旧配置或空配置会自动升级，使用户在设置界面能看到 CAN 设备。
+        /// </summary>
+        public static void EnsureDefaultCanDevice(SystemConfig config)
+        {
+            if (config.DeviceList == null)
+            {
+                config.DeviceList = new ObservableCollection<DeviceInfoVM>();
+            }
+
+            bool hasCan = config.DeviceList.Any(d =>
+                string.Equals(d?.ConnectionType, "CAN", StringComparison.OrdinalIgnoreCase) ||
+                string.Equals(d?.DeviceType, "ZLGCANFD", StringComparison.OrdinalIgnoreCase));
+
+            if (!hasCan)
+            {
+                config.DeviceList.Add(new DeviceInfoVM
+                {
+                    DeviceName = "CAN",
+                    DeviceType = "ZLGCANFD",
+                    Remark = "周立功 CANFD 接口卡",
+                    ConnectionType = "CAN",
+                    IsEnabled = true,
+                    IsConnected = false
+                });
+            }
+        }
+    }
+}