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using System;
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using Newtonsoft.Json;
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namespace DH.Commons.Helper
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{
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public static class SchemeHelper
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{
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private const string SchemesKey = "Schemes";
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private const string CurrentSchemeKey = "CurrentScheme";
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private const char Separator = '|';
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private const string DefaultSchemeName = "默认方案";
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private static readonly string ConfigFilePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "schemes.json");
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/// <summary>
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/// 方案配置数据结构
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/// </summary>
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private class SchemeConfig
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{
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public List<string> Schemes { get; set; } = new List<string>();
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public string CurrentScheme { get; set; } = DefaultSchemeName;
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}
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/// <summary>
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/// 初始化配置（首次运行时调用）
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/// </summary>
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public static void Initialize()
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{
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// 如果Schemes不存在，创建空键
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if (!SystemConfigHelper.KeyExists(SchemesKey))
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if (!File.Exists(ConfigFilePath))
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{
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SystemConfigHelper.SetValue(SchemesKey, "");
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}
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// 如果CurrentScheme不存在，创建空键
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if (!SystemConfigHelper.KeyExists(CurrentSchemeKey))
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{
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SystemConfigHelper.SetValue(CurrentSchemeKey, "");
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var defaultConfig = new SchemeConfig
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{
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Schemes = new List<string> { DefaultSchemeName },
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CurrentScheme = DefaultSchemeName
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};
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SaveConfig(defaultConfig);
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}
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}
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/// <summary>
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/// 获取所有方案（自动处理空值）
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/// 获取所有方案
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/// </summary>
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public static List<string> GetAllSchemes()
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{
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var schemeString = SystemConfigHelper.GetValue(SchemesKey, "");
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return string.IsNullOrEmpty(schemeString)
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? new List<string>()
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: new List<string>(schemeString.Split(Separator));
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var config = LoadConfig();
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return config.Schemes ?? new List<string>();
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}
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/// <summary>
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/// 添加新方案（自动初始化处理）
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/// 添加新方案
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/// </summary>
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public static void AddScheme(string schemeName)
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{
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if (string.IsNullOrWhiteSpace(schemeName))
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throw new ArgumentException("方案名称无效");
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var schemes = GetAllSchemes();
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var config = LoadConfig();
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if (schemes.Contains(schemeName))
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if (config.Schemes.Contains(schemeName))
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throw new InvalidOperationException($"方案 {schemeName} 已存在");
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schemes.Add(schemeName);
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SaveSchemes(schemes);
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config.Schemes.Add(schemeName);
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SaveConfig(config);
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}
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/// <summary>
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/// 设置当前方案（空值安全处理）
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/// 设置当前方案
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/// </summary>
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public static void SetCurrentScheme(string schemeName)
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{
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var schemes = GetAllSchemes();
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var config = LoadConfig();
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if (!schemes.Contains(schemeName))
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if (!config.Schemes.Contains(schemeName))
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throw new KeyNotFoundException($"方案 {schemeName} 不存在");
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SystemConfigHelper.SetValue(CurrentSchemeKey, schemeName);
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config.CurrentScheme = schemeName;
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SaveConfig(config);
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}
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/// <summary>
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/// 获取当前方案（默认值处理）
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/// 获取当前方案
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/// </summary>
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public static string GetCurrentScheme()
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{
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var current = SystemConfigHelper.GetValue(CurrentSchemeKey, "");
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return !string.IsNullOrEmpty(current) ? current : "默认方案";
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var config = LoadConfig();
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return !string.IsNullOrEmpty(config.CurrentScheme)
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? config.CurrentScheme
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: DefaultSchemeName;
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}
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private static void SaveSchemes(List<string> schemes)
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{
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var schemeString = schemes.Count > 0
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? string.Join(Separator.ToString(), schemes)
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: "";
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SystemConfigHelper.SetValue(SchemesKey, schemeString);
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}
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/// <summary>
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/// 删除指定方案（自动同步当前方案状态）
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/// 删除指定方案
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/// </summary>
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/// <param name="schemeName">要删除的方案名称</param>
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/// <exception cref="ArgumentException">当方案名称为空时抛出</exception>
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/// <exception cref="KeyNotFoundException">当方案不存在时抛出</exception>
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public static void DeleteScheme(string schemeName)
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{
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if (string.IsNullOrWhiteSpace(schemeName))
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throw new ArgumentException("方案名称无效");
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var schemes = GetAllSchemes();
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var config = LoadConfig();
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if (!schemes.Contains(schemeName))
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if (!config.Schemes.Contains(schemeName))
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throw new KeyNotFoundException($"方案 {schemeName} 不存在");
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// 删除前检查是否是当前方案
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bool isCurrent = GetCurrentScheme() == schemeName;
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// 如果是当前方案，需要先切换
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if (config.CurrentScheme == schemeName)
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{
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var otherScheme = config.Schemes.FirstOrDefault(s => s != schemeName);
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if (otherScheme != null)
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{
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config.CurrentScheme = otherScheme;
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}
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else
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{
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config.CurrentScheme = DefaultSchemeName;
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if (!config.Schemes.Contains(DefaultSchemeName))
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{
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config.Schemes.Add(DefaultSchemeName);
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}
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}
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}
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// 执行删除操作
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schemes.Remove(schemeName);
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SaveSchemes(schemes);
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config.Schemes.Remove(schemeName);
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SaveConfig(config);
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}
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/// <summary>
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/// 加载配置文件
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/// </summary>
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private static SchemeConfig LoadConfig()
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{
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if (!File.Exists(ConfigFilePath))
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{
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Initialize();
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}
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try
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{
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string json = File.ReadAllText(ConfigFilePath);
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return JsonConvert.DeserializeObject<SchemeConfig>(json) ?? new SchemeConfig();
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}
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catch
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{
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// 如果读取失败，返回默认配置
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return new SchemeConfig
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{
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Schemes = new List<string> { DefaultSchemeName },
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CurrentScheme = DefaultSchemeName
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};
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}
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}
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/// <summary>
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/// 保存配置文件
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/// </summary>
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private static void SaveConfig(SchemeConfig config)
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{
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try
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{
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string json = JsonConvert.SerializeObject(config, Formatting.Indented);
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File.WriteAllText(ConfigFilePath, json);
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}
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catch (Exception ex)
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{
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// 处理保存失败的情况
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throw new InvalidOperationException("保存方案配置失败", ex);
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}
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}
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}
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}
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}
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