Improved dev experience & allow native .NET debugging (#460)

app/MindWork AI Studio/Program.cs

@@ -25,14 +25,14 @@ internal sealed class Program
     public static IServiceProvider SERVICE_PROVIDER = null!;
     public static ILoggerFactory LOGGER_FACTORY = null!;
     
-    public static async Task Main(string[] args)
+    public static async Task Main()
     {
-        if(args.Length == 0)
-        {
-            Console.WriteLine("Error: Please provide the port of the runtime API.");
-            return;
-        }
-
+        #if DEBUG
+        // Read the environment variables from the .env file:
+        var envFilePath = Path.Combine("..", "..", "startup.env");
+        await EnvFile.Apply(envFilePath);
+        #endif
+        
         // Read the secret key for the IPC from the AI_STUDIO_SECRET_KEY environment variable:
         var secretPasswordEncoded = Environment.GetEnvironmentVariable("AI_STUDIO_SECRET_PASSWORD");
         if(string.IsNullOrWhiteSpace(secretPasswordEncoded))
@@ -58,6 +58,13 @@ internal sealed class Program
             return;
         }
         
+        var rustApiPort = Environment.GetEnvironmentVariable("AI_STUDIO_API_PORT");
+        if(string.IsNullOrWhiteSpace(rustApiPort))
+        {
+            Console.WriteLine("Error: The AI_STUDIO_API_PORT environment variable is not set.");
+            return;
+        }
+        
         var apiToken = Environment.GetEnvironmentVariable("AI_STUDIO_API_TOKEN");
         if(string.IsNullOrWhiteSpace(apiToken))
         {
@@ -67,7 +74,6 @@ internal sealed class Program
         
         API_TOKEN = apiToken;
         
-        var rustApiPort = args[0];
         using var rust = new RustService(rustApiPort, certificateFingerprint);
         var appPort = await rust.GetAppPort();
         if(appPort == 0)

app/MindWork AI Studio/Tools/EnvFile.cs

@@ -0,0 +1,41 @@
+#if DEBUG
+using System.Text;
+
+namespace AIStudio.Tools;
+
+/// <summary>
+/// Read environment variables for the application from an .env file.
+/// </summary>
+/// <remarks>
+/// We consider this feature a security issue. Therefore, it is only
+/// available in DEBUG mode. To ensure this, we remove the code
+/// from any release build.
+/// </remarks>
+public static class EnvFile
+{
+    public static async Task Apply(string filePath)
+    {
+        if(!File.Exists(filePath))
+        {
+            Console.WriteLine($"Error: The .env file '{filePath}' does not exist.");
+            return;
+        }
+        
+        var lines = await File.ReadAllLinesAsync(filePath, Encoding.UTF8);
+        foreach (var line in lines)
+        {
+            if (string.IsNullOrWhiteSpace(line) || line.Trim().StartsWith('#'))
+                continue;
+
+            var parts = line.Split(['='], 2);
+            if (parts.Length != 2)
+                continue;
+
+            var key = parts[0].Trim();
+            var value = parts[1].Trim();
+
+            Environment.SetEnvironmentVariable(key, value);
+        }
+    }
+}
+#endif