From 8dbf2faae337f92a0fef49c2b393743348ee10ae Mon Sep 17 00:00:00 2001
From: "J. Schlackman" <james@schlackman.org>
Date: Mon, 16 Aug 2021 21:38:46 -0400
Subject: [PATCH] Add status indicator in settings - closes #3

The settings UI now displays the number of Luxafor devices connected.
---
 LuxOnAir/LFRSettings.cs     | 30 ++++++++++++++++++++++--------
 LuxOnAir/MainWindow.xaml    |  2 ++
 LuxOnAir/MainWindow.xaml.cs | 33 ++++++++++++++++++++++++++++++++-
 3 files changed, 56 insertions(+), 9 deletions(-)

diff --git a/LuxOnAir/LFRSettings.cs b/LuxOnAir/LFRSettings.cs
index b8f8003..4d0049f 100644
--- a/LuxOnAir/LFRSettings.cs
+++ b/LuxOnAir/LFRSettings.cs
@@ -69,25 +69,39 @@ public LFRSettings()
         /// <summary>
         /// Initilizes the Luxafor hardware
         /// </summary>
-        /// <returns>Debug log message indicating how many devices were found.</returns>
+        /// <returns>Text message indicating how many devices were found.</returns>
         public string InitHardware()
         {
-            string logMsg;
-            
-            // Now create a new device controller
+            // Create a new device controller
             devices = new DeviceList();
             devices.Scan();
 
+            return ConnectedDeviceDesc();
+        }
+
+        /// <summary>
+        /// Gets the number Luxafor devices currently connected.
+        /// </summary>
+        /// <returns>Numerical count of devices connected.</returns>
+        public int ConnectedDeviceCount()
+        {
+            return (devices == null ? 0 : devices.Count());
+        }
+
+        /// <summary>
+        /// Generates a text description of how many Luxafor devices are currently connected.
+        /// </summary>
+        /// <returns>User-friendly text describing how many Luxafor devices are connected.</returns>
+        public string ConnectedDeviceDesc()
+        {
             if (devices.Count() == 0)
             {
-                logMsg = "No Luxafor light available.";
+                return "No Luxafor light connected.";
             }
             else
             {
-                logMsg = string.Format("{0} Luxafor light{1} ready.", devices.Count().ToString(), (devices.Count() != 1) ? "s" : "");
+                return string.Format("{0} Luxafor light{1} connected.", devices.Count().ToString(), (devices.Count() != 1) ? "s" : "");
             }
-
-            return logMsg;
         }
 
         /// <summary>
diff --git a/LuxOnAir/MainWindow.xaml b/LuxOnAir/MainWindow.xaml
index e200ec1..a832552 100644
--- a/LuxOnAir/MainWindow.xaml
+++ b/LuxOnAir/MainWindow.xaml
@@ -48,6 +48,8 @@
         </TabControl>
         <Button x:Name="btnExit" Content="Exit" Margin="0,0,8,10" Height="19" VerticalAlignment="Bottom" Click="ExitMenuItem_Click" HorizontalAlignment="Right" Width="75" ToolTip="Exit the application and turn off lights"/>
         <Button x:Name="btnDone" Content="Done" Margin="0,0,88,10" Click="BtnDone_Click" Height="19" VerticalAlignment="Bottom" IsDefault="True" HorizontalAlignment="Right" Width="75" ToolTip="Apply settings and close this window without exiting the application"/>
+        <Ellipse x:Name="elpStatus" Fill="#FFF4F4F5" Margin="10,0,0,12" Stroke="Black" Height="14" Width="14" VerticalAlignment="Bottom" HorizontalAlignment="Left" StrokeThickness="2"/>
+        <Label x:Name="lblStatus" Content="Device status" HorizontalAlignment="Left" Margin="26,0,0,6" Height="26" VerticalAlignment="Bottom" IsEnabled="False" Foreground="{DynamicResource {x:Static SystemColors.ControlLightLightBrushKey}}"/>
 
     </Grid>
 </Window>
diff --git a/LuxOnAir/MainWindow.xaml.cs b/LuxOnAir/MainWindow.xaml.cs
index 3142b0a..cd368c5 100644
--- a/LuxOnAir/MainWindow.xaml.cs
+++ b/LuxOnAir/MainWindow.xaml.cs
@@ -7,6 +7,7 @@
 using System.Windows.Forms;
 using LuxOnAir.Properties;
 using System.Management;
+using System.Windows.Media;
 
 namespace LuxOnAir
 {
@@ -86,6 +87,9 @@ public MainWindow()
             // Initialize Luxafor devices
             WriteToDebug(Settings.Default.luxSettings.InitHardware());
 
+            // Update the device status UI
+            UpdateDeviceStatus();
+
             btnMicInUse.Background = Settings.Default.luxSettings.Colors.MicInUse.ToBrush();
             btnMicNotInUse.Background = Settings.Default.luxSettings.Colors.MicNotInUse.ToBrush();
             btnLocked.Background = Settings.Default.luxSettings.Colors.SessionLocked.ToBrush();
@@ -160,11 +164,38 @@ private void LFRDevices_Changed(object sender, EventArrivedEventArgs e)
         {
             WriteToDebug("Hardware change detected.");
             WriteToDebug(Settings.Default.luxSettings.InitHardware());
-            
+
+            // Update the device status UI
+            UpdateDeviceStatus();
             // Run an icon check now
             CheckNotificationIcons();
         }
 
+        /// <summary>
+        /// Update the indicator on the mains ettings screen to show how many devices are connected
+        /// </summary>
+        private void UpdateDeviceStatus()
+        {
+            // Thread-safe UI update
+            Dispatcher.Invoke(() =>
+            {
+                lblStatus.Content = Settings.Default.luxSettings.InitHardware();
+
+                if (Settings.Default.luxSettings.ConnectedDeviceCount() == 0)
+                {
+                    // Red status indicator
+                    elpStatus.Fill = new SolidColorBrush(Color.FromArgb(0xFF, 0xFF, 0x58, 0x58));
+                    elpStatus.Stroke = new SolidColorBrush(Color.FromArgb(0xFF, 0xB7, 0, 0));
+                }
+                else
+                {
+                    // Green status indicator
+                    elpStatus.Fill = new SolidColorBrush(Color.FromArgb(0xFF, 0x55, 0xBB, 0x55));
+                    elpStatus.Stroke = new SolidColorBrush(Color.FromArgb(0xFF, 0, 0xB6, 0));
+                }
+            });
+        }
+
         /// <summary>
         /// Respond to suspend/resume events
         /// </summary>