From 1fc07ca194f77a34b203e32aba9e07c19e1ecf9f Mon Sep 17 00:00:00 2001
From: Pat Hartl <pat@pathar.tl>
Date: Thu, 26 Jan 2023 00:29:00 -0600
Subject: [PATCH] Have server broadcast its address to the local network for
 easy sign in

---
 .../LANCommander.PlaynitePlugin.csproj        |  3 ++
 .../Views/Authentication.xaml.cs              | 19 +++++++++-
 .../packages.config                           |  2 ++
 LANCommander/LANCommander.csproj              |  1 +
 LANCommander/Models/Settings.cs               |  1 +
 LANCommander/Program.cs                       |  4 +++
 LANCommander/Services/BeaconService.cs        | 35 +++++++++++++++++++
 7 files changed, 64 insertions(+), 1 deletion(-)
 create mode 100644 LANCommander/Services/BeaconService.cs

diff --git a/LANCommander.Playnite.Extension/LANCommander.PlaynitePlugin.csproj b/LANCommander.Playnite.Extension/LANCommander.PlaynitePlugin.csproj
index 7bec324..2d33279 100644
--- a/LANCommander.Playnite.Extension/LANCommander.PlaynitePlugin.csproj
+++ b/LANCommander.Playnite.Extension/LANCommander.PlaynitePlugin.csproj
@@ -31,6 +31,9 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
+    <Reference Include="BeaconLib, Version=1.0.2.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\packages\rix0rrr.BeaconLib.1.0.2\lib\net40\BeaconLib.dll</HintPath>
+    </Reference>
     <Reference Include="ICSharpCode.SharpZipLib, Version=1.4.1.12, Culture=neutral, PublicKeyToken=1b03e6acf1164f73, processorArchitecture=MSIL">
       <HintPath>..\packages\SharpZipLib.1.4.1\lib\netstandard2.0\ICSharpCode.SharpZipLib.dll</HintPath>
     </Reference>
diff --git a/LANCommander.Playnite.Extension/Views/Authentication.xaml.cs b/LANCommander.Playnite.Extension/Views/Authentication.xaml.cs
index ca0d57a..02cfbe7 100644
--- a/LANCommander.Playnite.Extension/Views/Authentication.xaml.cs
+++ b/LANCommander.Playnite.Extension/Views/Authentication.xaml.cs
@@ -1,4 +1,5 @@
-using LANCommander.SDK.Models;
+using BeaconLib;
+using LANCommander.SDK.Models;
 using Playnite.SDK;
 using System;
 using System.Collections.Generic;
@@ -27,6 +28,22 @@ namespace LANCommander.PlaynitePlugin.Views
             Plugin = plugin;
 
             InitializeComponent();
+
+            var probe = new Probe("LANCommander");
+
+            probe.BeaconsUpdated += beacons => Dispatcher.BeginInvoke((System.Action)(() =>
+            {
+                var beacon = beacons.First();
+
+                Context.ServerAddress = $"http://{beacon.Address.Address}:{beacon.Address.Port}";
+
+                this.ServerAddress.Text = Context.ServerAddress;
+
+                probe.Stop();
+            }));
+
+            probe.Start();
+
         }
 
         private void TextBox_KeyDown(object sender, KeyEventArgs e)
diff --git a/LANCommander.Playnite.Extension/packages.config b/LANCommander.Playnite.Extension/packages.config
index 2728830..f1e1db6 100644
--- a/LANCommander.Playnite.Extension/packages.config
+++ b/LANCommander.Playnite.Extension/packages.config
@@ -1,9 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Microsoft.Bcl.AsyncInterfaces" version="5.0.0" targetFramework="net462" />
+  <package id="NuGet.CommandLine" version="4.4.3" targetFramework="net462" developmentDependency="true" />
   <package id="PlayniteSDK" version="6.8.0" targetFramework="net462" />
   <package id="PowerShellStandard.Library" version="5.1.1" targetFramework="net462" />
   <package id="RestSharp" version="106.15.0" targetFramework="net462" />
+  <package id="rix0rrr.BeaconLib" version="1.0.2" targetFramework="net462" />
   <package id="SharpZipLib" version="1.4.1" targetFramework="net462" />
   <package id="System.Buffers" version="4.5.1" targetFramework="net462" />
   <package id="System.Memory" version="4.5.4" targetFramework="net462" />
diff --git a/LANCommander/LANCommander.csproj b/LANCommander/LANCommander.csproj
index 4b3d345..5ec6ca2 100644
--- a/LANCommander/LANCommander.csproj
+++ b/LANCommander/LANCommander.csproj
@@ -38,6 +38,7 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
     <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="6.0.11" />
+    <PackageReference Include="rix0rrr.BeaconLib" Version="1.0.2" />
     <PackageReference Include="Swashbuckle.AspNetCore" Version="6.3.0" />
     <PackageReference Include="YamlDotNet" Version="12.3.1" />
   </ItemGroup>
diff --git a/LANCommander/Models/Settings.cs b/LANCommander/Models/Settings.cs
index 0674bbd..c37efc0 100644
--- a/LANCommander/Models/Settings.cs
+++ b/LANCommander/Models/Settings.cs
@@ -3,6 +3,7 @@
     public class LANCommanderSettings
     {
         public int Port { get; set; }
+        public bool Beacon { get; set; }
         public string TokenSecret { get; set; }
         public int TokenLifetime { get; set; }
         public string DatabaseConnectionString { get; set; }
diff --git a/LANCommander/Program.cs b/LANCommander/Program.cs
index b35af41..7db6aea 100644
--- a/LANCommander/Program.cs
+++ b/LANCommander/Program.cs
@@ -1,3 +1,4 @@
+using BeaconLib;
 using LANCommander.Data;
 using LANCommander.Data.Models;
 using LANCommander.Services;
@@ -77,6 +78,9 @@ builder.Services.AddScoped<TagService>();
 builder.Services.AddScoped<CompanyService>();
 builder.Services.AddScoped<IGDBService>();
 
+if (settings.Beacon)
+    builder.Services.AddHostedService<BeaconService>();
+
 var app = builder.Build();
 
 // Configure the HTTP request pipeline.
diff --git a/LANCommander/Services/BeaconService.cs b/LANCommander/Services/BeaconService.cs
new file mode 100644
index 0000000..250c9b5
--- /dev/null
+++ b/LANCommander/Services/BeaconService.cs
@@ -0,0 +1,35 @@
+using BeaconLib;
+using LANCommander.Models;
+
+namespace LANCommander.Services
+{
+    public class BeaconService : IHostedService, IDisposable
+    {
+        private Beacon Beacon;
+        private LANCommanderSettings Settings;
+
+        public BeaconService() {
+            Settings = SettingService.GetSettings();
+            Beacon = new Beacon("LANCommander", Convert.ToUInt16(Settings.Port));
+        }
+
+        public void Dispose()
+        {
+            Beacon?.Dispose();
+        }
+
+        public Task StartAsync(CancellationToken cancellationToken)
+        {
+            Beacon.BeaconData = "Acknowledged HQ";
+            Beacon.Start();
+
+            return Task.CompletedTask;
+        }
+
+        public Task StopAsync(CancellationToken cancellationToken)
+        {
+            Beacon.Stop();
+            return Task.CompletedTask;
+        }
+    }
+}