Disable Windows-specific code on other platforms

LANCommander/LANCommander.csproj

@@ -10,6 +10,16 @@
     <Content Remove="wwwroot\js\Upload.ts" />
   </ItemGroup>
 
+    <PropertyGroup Condition="$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::Windows)))">
+	    <DefineConstants>WINDOWS</DefineConstants>
+    </PropertyGroup>
+    <PropertyGroup Condition="$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::OSX)))">
+	    <DefineConstants>LINUX</DefineConstants>
+    </PropertyGroup>
+    <PropertyGroup Condition="$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::Linux)))">
+	    <DefineConstants>MACOS</DefineConstants>
+    </PropertyGroup>
+
   <ItemGroup>
     <PackageReference Include="AntDesign" Version="0.15.4" />
     <PackageReference Include="AntDesign.Charts" Version="0.3.1" />
@@ -64,6 +74,12 @@
     <TypeScriptCompile Include="wwwroot\js\Upload.ts" />
   </ItemGroup>
 
+  <ItemGroup>
+    <None Update="favicon.png">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+
   <ItemGroup>
     <TypeScriptCompile Update="wwwroot\js\Upload.ts">
       <CopyToOutputDirectory>Never</CopyToOutputDirectory>

LANCommander/Pages/Dashboard/Charts/NetworkDownloadRate.razor

@@ -65,6 +65,7 @@
 
     private async Task RefreshData()
     {
+        #if WINDOWS
         var category = new PerformanceCounterCategory("Network Interface");
 
         foreach (var instance in category.GetInstanceNames())
@@ -83,5 +84,6 @@
             await Chart.ChangeData(Data.SelectMany(x => x.Value.Select((y, i) => new { value = y, index = i, series = x.Key })), true);
         }
         catch { }
+        #endif
     }
 }

LANCommander/Pages/Dashboard/Charts/NetworkUploadRate.razor

@@ -65,6 +65,7 @@
 
     private async Task RefreshData()
     {
+        #if WINDOWS
         var category = new PerformanceCounterCategory("Network Interface");
 
         foreach (var instance in category.GetInstanceNames())
@@ -83,5 +84,6 @@
             await Chart.ChangeData(Data.SelectMany(x => x.Value.Select((y, i) => new { value = y, index = i, series = x.Key })), true);
         }
         catch { }
+        #endif
     }
 }

LANCommander/Pages/Dashboard/Charts/ProcessorUtilization.razor

@@ -68,6 +68,7 @@
 
     private async Task RefreshData()
     {
+        #if WINDOWS
         Data = Data.ShiftArrayAndInsert((double)Math.Ceiling(PerformanceCounter.NextValue()), TimerHistory);
 
         try
@@ -75,5 +76,6 @@
             await Chart.ChangeData(Data.Select((x, i) => new { value = x, index = i }), true);
         }
         catch { }
+        #endif
     }
 }

LANCommander/Services/GameService.cs

@@ -120,6 +120,7 @@ namespace LANCommander.Services
                 return File.ReadAllBytes(cachedPath);
             else
             {
+                #if WINDOWS
                 if (game.Archives == null || game.Archives.Count == 0)
                     throw new FileNotFoundException();
 
@@ -127,31 +128,38 @@ namespace LANCommander.Services
 
                 Bitmap bitmap = null;
 
-                var iconReference = ArchiveService.ReadFile(archive.ObjectKey, game.Icon);
-
-                if (IsWinPEFile(iconReference))
+                try
                 {
-                    var tmp = System.IO.Path.GetTempFileName();
+                    var iconReference = ArchiveService.ReadFile(archive.ObjectKey, game.Icon);
 
-                    System.IO.File.WriteAllBytes(tmp, iconReference);
-
-                    var icon = System.Drawing.Icon.ExtractAssociatedIcon(tmp);
-
-                    bitmap = icon.ToBitmap();
-                }
-                else
-                {
-                    using (var ms = new MemoryStream(iconReference))
+                    if (IsWinPEFile(iconReference))
                     {
-                        bitmap = (Bitmap)Bitmap.FromStream(ms);
+                        var tmp = System.IO.Path.GetTempFileName();
+
+                        System.IO.File.WriteAllBytes(tmp, iconReference);
+
+                        var icon = System.Drawing.Icon.ExtractAssociatedIcon(tmp);
+
+                        bitmap = icon.ToBitmap();
                     }
+                    else
+                    {
+                        using (var ms = new MemoryStream(iconReference))
+                        {
+                            bitmap = (Bitmap)Bitmap.FromStream(ms);
+                        }
+                    }
+
+                    var iconPng = ConvertToPng(bitmap);
+
+                    File.WriteAllBytes(cachedPath, iconPng);
+
+                    return iconPng;
                 }
+                catch (Exception ex) { }
+                #endif
 
-                var iconPng = ConvertToPng(bitmap);
-
-                File.WriteAllBytes(cachedPath, iconPng);
-
-                return iconPng;
+                return File.ReadAllBytes("favicon.png");
             }
         }