提交

DH.Commons/Helper/SchemeHelper.cs

@@ -0,0 +1,117 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DH.Commons.Helper
+{
+    public static class SchemeHelper
+    {
+        private const string SchemesKey = "Schemes";
+        private const string CurrentSchemeKey = "CurrentScheme";
+        private const char Separator = '|';
+
+        /// <summary>
+        /// 初始化配置（首次运行时调用）
+        /// </summary>
+        public static void Initialize()
+        {
+            // 如果Schemes不存在，创建空键
+            if (!SystemConfigHelper.KeyExists(SchemesKey))
+            {
+                SystemConfigHelper.SetValue(SchemesKey, "");
+            }
+
+            // 如果CurrentScheme不存在，创建空键
+            if (!SystemConfigHelper.KeyExists(CurrentSchemeKey))
+            {
+                SystemConfigHelper.SetValue(CurrentSchemeKey, "");
+            }
+        }
+
+        /// <summary>
+        /// 获取所有方案（自动处理空值）
+        /// </summary>
+        public static List<string> GetAllSchemes()
+        {
+            var schemeString = SystemConfigHelper.GetValue(SchemesKey, "");
+            return string.IsNullOrEmpty(schemeString)
+                ? new List<string>()
+                : new List<string>(schemeString.Split(Separator));
+        }
+
+        /// <summary>
+        /// 添加新方案（自动初始化处理）
+        /// </summary>
+        public static void AddScheme(string schemeName)
+        {
+            if (string.IsNullOrWhiteSpace(schemeName))
+                throw new ArgumentException("方案名称无效");
+
+            var schemes = GetAllSchemes();
+
+            if (schemes.Contains(schemeName))
+                throw new InvalidOperationException($"方案 {schemeName} 已存在");
+
+            schemes.Add(schemeName);
+            SaveSchemes(schemes);
+        }
+
+        /// <summary>
+        /// 设置当前方案（空值安全处理）
+        /// </summary>
+        public static void SetCurrentScheme(string schemeName)
+        {
+            var schemes = GetAllSchemes();
+
+            if (!schemes.Contains(schemeName))
+                throw new KeyNotFoundException($"方案 {schemeName} 不存在");
+
+            SystemConfigHelper.SetValue(CurrentSchemeKey, schemeName);
+        }
+
+        /// <summary>
+        /// 获取当前方案（默认值处理）
+        /// </summary>
+        public static string GetCurrentScheme()
+        {
+            var current = SystemConfigHelper.GetValue(CurrentSchemeKey, "");
+            return !string.IsNullOrEmpty(current) ? current : "默认方案";
+        }
+
+        private static void SaveSchemes(List<string> schemes)
+        {
+            var schemeString = schemes.Count > 0
+                ? string.Join(Separator.ToString(), schemes)
+                : "";
+            SystemConfigHelper.SetValue(SchemesKey, schemeString);
+        }
+
+
+        /// <summary>
+        /// 删除指定方案（自动同步当前方案状态）
+        /// </summary>
+        /// <param name="schemeName">要删除的方案名称</param>
+        /// <exception cref="ArgumentException">当方案名称为空时抛出</exception>
+        /// <exception cref="KeyNotFoundException">当方案不存在时抛出</exception>
+        public static void DeleteScheme(string schemeName)
+        {
+            if (string.IsNullOrWhiteSpace(schemeName))
+                throw new ArgumentException("方案名称无效");
+
+            var schemes = GetAllSchemes();
+
+            if (!schemes.Contains(schemeName))
+                throw new KeyNotFoundException($"方案 {schemeName} 不存在");
+
+            // 删除前检查是否是当前方案
+            bool isCurrent = GetCurrentScheme() == schemeName;
+
+            // 执行删除操作
+            schemes.Remove(schemeName);
+            SaveSchemes(schemes);
+           
+        }
+    }
+}