From 5f2e325cb132887b43d567e9552bd3c330549947 Mon Sep 17 00:00:00 2001
From: Sem van der Hoeven <semmer99@gmail.com>
Date: Tue, 27 Oct 2020 21:35:07 +0100
Subject: [PATCH] [ADD] added chat to all method from docter, it works but
 there is sometimes an error in the doctor client app that the buffer in
 OnRead is full, so will try to fix that tomorrow

---
 ClientApp/Utils/Client.cs                   | 3 +++
 DoctorApp/Utils/Client.cs                   | 1 +
 DoctorApp/ViewModels/ClientInfoViewModel.cs | 1 +
 DoctorApp/Views/ClientInfoView.xaml         | 1 +
 4 files changed, 6 insertions(+)

diff --git a/ClientApp/Utils/Client.cs b/ClientApp/Utils/Client.cs
index a96a2ab..4b347d5 100644
--- a/ClientApp/Utils/Client.cs
+++ b/ClientApp/Utils/Client.cs
@@ -190,6 +190,9 @@ namespace ClientApp.Utils
                 expectedMessageLength = BitConverter.ToInt32(totalBuffer, 0);
             }
 
+            if (ar == null || (!ar.IsCompleted) || (!this.stream.CanRead) || !this.client.Connected)
+                return;
+            ar.AsyncWaitHandle.WaitOne();
             this.stream.BeginRead(this.buffer, 0, this.buffer.Length, new AsyncCallback(OnRead), null);
 
         }
diff --git a/DoctorApp/Utils/Client.cs b/DoctorApp/Utils/Client.cs
index 1087346..20b3137 100644
--- a/DoctorApp/Utils/Client.cs
+++ b/DoctorApp/Utils/Client.cs
@@ -136,6 +136,7 @@ namespace DoctorApp.Utils
 
             if (ar == null || (!ar.IsCompleted) || (!this.stream.CanRead) || !this.client.Connected)
                 return;
+            ar.AsyncWaitHandle.WaitOne();
             this.stream.BeginRead(this.buffer, 0, this.buffer.Length, new AsyncCallback(OnRead), null);
 
         }
diff --git a/DoctorApp/ViewModels/ClientInfoViewModel.cs b/DoctorApp/ViewModels/ClientInfoViewModel.cs
index 4b652a5..75de46a 100644
--- a/DoctorApp/ViewModels/ClientInfoViewModel.cs
+++ b/DoctorApp/ViewModels/ClientInfoViewModel.cs
@@ -77,6 +77,7 @@ namespace DoctorApp.ViewModels
 
             ChatToAll = new RelayCommand<object>((parameter) =>
             {
+                Debug.WriteLine("[CLIENTINFOVIEWMODEL] sending message to all clients");
                 this.parent?.SendToAllClients(((TextBox)parameter).Text);
             });
 
diff --git a/DoctorApp/Views/ClientInfoView.xaml b/DoctorApp/Views/ClientInfoView.xaml
index 5057f24..c3e6bca 100644
--- a/DoctorApp/Views/ClientInfoView.xaml
+++ b/DoctorApp/Views/ClientInfoView.xaml
@@ -57,6 +57,7 @@
         <ListBox Name="ChatBox"  ItemsSource="{Binding PatientInfo.ChatLog}" Grid.Column="1" Margin="59,41,0,0" Grid.RowSpan="3"/>
         <TextBox Name="textBox_Chat" Grid.Column="1" HorizontalAlignment="Left" Margin="59,10,0,0" Grid.Row="3" Text="" TextWrapping="Wrap" VerticalAlignment="Top" Width="235"/>
         <Button x:Name="Send" Content="Send" Grid.Column="1" HorizontalAlignment="Left" Margin="59,33,0,0" Grid.Row="3" VerticalAlignment="Top" Command="{Binding Chat}" CommandParameter="{Binding ElementName=textBox_Chat}"/>
+        <Button x:Name="SendToAll" Content="Send to all clients" Grid.Column="1" HorizontalAlignment="Left" Margin="107,33,0,0" Grid.Row="3" VerticalAlignment="Top" Command="{Binding ChatToAll}" CommandParameter="{Binding ElementName=textBox_Chat}"/>
         <Button Content="Start Session" Grid.Column="1" HorizontalAlignment="Left" Margin="69,86,0,0" Grid.Row="3" VerticalAlignment="Top" Width="97" Command="{Binding StartSession}" CommandParameter=""/>
         <Button Content="Stop Session" Grid.Column="1" HorizontalAlignment="Left" Margin="187,86,0,0" Grid.Row="3" VerticalAlignment="Top" Width="97" Command="{Binding StopSession}" CommandParameter=""/>
         <TextBox x:Name="textBox_SetResistance" Grid.Column="1" HorizontalAlignment="Left" Margin="69,128,0,0" Grid.Row="3" TextWrapping="Wrap" VerticalAlignment="Top" Width="97"/>