using DevComponents.DotNetBar.Controls;
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using DevComponents.DotNetBar;
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using System.Windows;
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using System.Drawing;
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using System.Net.WebSockets;
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using System;
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using System.Threading.Tasks;
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using System.Text;
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using System.Diagnostics;
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using System.Timers;
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using System.Collections.ObjectModel;
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using System.ComponentModel;
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using System.Runtime.CompilerServices;
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using PdmAlert.Entity;
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namespace PdmAlert
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{
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/// <summary>
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/// MainWindow.xaml 的交互逻辑
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/// </summary>
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public partial class MainWindow : Window, INotifyPropertyChanged
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{
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#region INotifyPropertyChanged
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public virtual event PropertyChangedEventHandler PropertyChanged;
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protected virtual void RaisePropertyChanged(string name)
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{
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PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(name));
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}
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protected void RaiseAndSetIfChanged<T>(ref T old, T @new, [CallerMemberName] string propertyName = null)
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{
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old = @new;
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if (propertyName != null)
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{
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RaisePropertyChanged(propertyName);
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}
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}
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#endregion
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private ClientWebSocket socket;
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private Task readTask;
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private Task writeTask;
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private System.Timers.Timer heartbeatTimer;
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private string _messageTitle = "共有 0 条未读消息";
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public string messageTitle
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{
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get => _messageTitle;
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set => RaiseAndSetIfChanged(ref _messageTitle, value);
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}
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private ObservableCollection<MsgData> _messages;
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public ObservableCollection<MsgData> messages
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{
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get => _messages;
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set => RaiseAndSetIfChanged(ref _messages, value);
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}
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public MainWindow()
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{
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InitializeComponent();
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}
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private void Refresh_Click(object sender, RoutedEventArgs e)
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{
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}
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private void SwitchUser_Click(object sender, RoutedEventArgs e)
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{
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}
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private void AlertClicked(long alertId)
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{
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}
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private void Window_Loaded(object sender, RoutedEventArgs e)
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{
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var screeWidth = SystemParameters.WorkArea.Width;
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var sHeight = SystemParameters.WorkArea.Height;
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this.Left = screeWidth - this.Width;
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this.Top = sHeight - this.Height;
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ConnectWebSocket();
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}
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private async Task ConnectWebSocket()
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{
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try
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{
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ClientWebSocket ws = new ClientWebSocket();
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await ws.ConnectAsync(new Uri($"ws://localhost:8888/pdm-web/daws/{LoginUser.CurrentUser?.id}"), default);
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socket = ws;
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ReadMsg();
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StartHeartbeat();
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}
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catch (Exception ex)
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{
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await ConnectWebSocket();
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}
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}
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private void ReadMsg()
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{
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readTask = Task.Run(() =>
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{
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while (socket.State == WebSocketState.Open)
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{
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byte[] buffer = new byte[1024];
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var task = socket.ReceiveAsync(new ArraySegment<byte>(buffer), default);
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task.Wait();
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var res = task.Result;
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var msg = Encoding.UTF8.GetString(buffer, 0, res.Count);
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HandleMsg(msg);
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}
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});
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}
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private void HandleMsg(string msg)
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{
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if (string.IsNullOrEmpty(msg) || msg == "heartcheck")
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{
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return;
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}
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Debug.WriteLine(msg);
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Dispatcher.Invoke(() =>
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{
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eDesktopAlertColor color = eDesktopAlertColor.Default;
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eAlertPosition position = eAlertPosition.BottomRight;
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DesktopAlert.Show(msg, "\uf005", eSymbolSet.Awesome, Color.Empty, color, position, 5,
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DateTimeOffset.UtcNow.ToUnixTimeMilliseconds(), AlertClicked);
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});
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}
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private void StartHeartbeat()
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{
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heartbeatTimer = new System.Timers.Timer(30 * 1000);
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heartbeatTimer.Elapsed += HeartbeatTimer_Elapsed;
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heartbeatTimer.AutoReset = true;
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heartbeatTimer.Start();
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}
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private void HeartbeatTimer_Elapsed(object sender, ElapsedEventArgs e)
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{
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if (socket == null || socket.State != WebSocketState.Open)
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{
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DoDispose();
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ConnectWebSocket().Wait();
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}
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else
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{
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byte[] buffer = Encoding.UTF8.GetBytes("test");
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socket.SendAsync(new ArraySegment<byte>(buffer), WebSocketMessageType.Text, true, default);
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}
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}
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public void DoDispose()
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{
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if (heartbeatTimer != null)
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{
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heartbeatTimer.Stop();
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heartbeatTimer.Dispose();
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heartbeatTimer = null;
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}
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if (readTask != null)
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{
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readTask.Dispose();
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readTask = null;
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}
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if (socket != null)
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{
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try
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{
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socket.CloseAsync(WebSocketCloseStatus.NormalClosure, "DoDispose", default).Wait();
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socket.Dispose();
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}
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catch (Exception ex)
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{
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}
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finally
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{
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socket = null;
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}
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}
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}
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private void Hide_Click(object sender, RoutedEventArgs e)
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{
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this.Hide();
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}
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private void Window_Deactivated(object sender, EventArgs e)
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{
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this.Hide();
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}
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}
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}
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