68 lines
2.3 KiB
C#
68 lines
2.3 KiB
C#
using System.Collections.ObjectModel;
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using System.Windows; // 如果是 WPF
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using SHH.Contracts;
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namespace SHH.CameraDashboard
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{
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/// <summary>
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/// 服务端状态管理器
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/// <para>职责：维护在线设备列表，供 UI 绑定</para>
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/// </summary>
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public class ServerStateManager
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{
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// UI 绑定的集合
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public ObservableCollection<ServerNodeInfo> OnlineServers { get; }
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= new ObservableCollection<ServerNodeInfo>();
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/// <summary>
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/// 处理注册/心跳包，更新列表
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/// </summary>
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public void RegisterOrUpdate(RegisterPayload info)
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{
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// 确保在 UI 线程执行 (WPF 必须)
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Application.Current.Dispatcher.Invoke(() =>
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{
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var existing = OnlineServers.FirstOrDefault(x => x.InstanceId == info.InstanceId);
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if (existing != null)
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{
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// 更新已有节点状态
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existing.IpAddress = info.ServerIp;
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existing.WebApiPort = info.WebApiPort;
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existing.LastHeartbeat = DateTime.Now;
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existing.Status = "在线";
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// 触发属性变更通知...
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}
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else
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{
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// 新增节点
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OnlineServers.Add(new ServerNodeInfo
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{
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InstanceId = info.InstanceId,
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IpAddress = info.ServerIp,
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WebApiPort = info.WebApiPort,
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ProcessId = info.ProcessId,
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LastHeartbeat = DateTime.Now,
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Status = "在线"
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});
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}
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});
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}
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}
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/// <summary>
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/// UI 显示用的模型
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/// </summary>
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public class ServerNodeInfo
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{
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public string InstanceId { get; set; }
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public string IpAddress { get; set; }
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public int WebApiPort { get; set; }
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public int ProcessId { get; set; }
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public string Status { get; set; }
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public DateTime LastHeartbeat { get; set; }
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// 方便 UI 显示的字符串
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public string DisplayName => $"{InstanceId} ({IpAddress}:{WebApiPort})";
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}
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} |