added config to diagnose, while censoring sensitive data

Moonlight.ApiServer/Implementations/Diagnose/CoreDiagnoseProvider.cs

@@ -1,4 +1,7 @@
 using System.Text;
+using System.Text.Json;
+using MoonCore.Helpers;
+using Moonlight.ApiServer.Configuration;
 using Moonlight.ApiServer.Interfaces;
 using Moonlight.ApiServer.Models.Diagnose;
 
@@ -8,13 +11,58 @@ public class CoreDiagnoseProvider : IDiagnoseProvider
 {
     public DiagnoseEntry[] GetFiles()
     {
+        // TODO:
+        // - read logs out from file for the diagnose below
+        
         return
         [
-            new DiagnoseFile()
+            new DiagnoseDirectory()
             {
-                Name = "test.txt",
-                GetContent = () => Encoding.UTF8.GetBytes("hello world")
+                Name = "core",
+                Children = [
+                
+                    new DiagnoseFile()
+                    {
+                        Name = "logs.txt",
+                        GetContent = () => Encoding.UTF8.GetBytes("placeholder")
+                    },
+                    
+                    new DiagnoseFile()
+                    {
+                        Name = "logs.txt",
+                        GetContent = () =>
+                        {
+
+                            var configJson = File.ReadAllText(PathBuilder.File("storage", "app.json"));
+
+                            var config = JsonSerializer.Deserialize<AppConfiguration>(configJson);
+
+                            if (config == null)
+                            {
+                                return Encoding.UTF8.GetBytes("could not fetch config");
+                            }
+
+                            config.Database.Password = CheckForNullOrEmpty(config.Database.Password);
+                            
+                            config.Authentication.OAuth2.ClientSecret = CheckForNullOrEmpty(config.Authentication.OAuth2.ClientSecret);
+                            
+                            config.Authentication.OAuth2.Secret = CheckForNullOrEmpty(config.Authentication.OAuth2.Secret);
+
+                            config.Authentication.Secret = CheckForNullOrEmpty(config.Authentication.Secret);
+
+                            return Encoding.UTF8.GetBytes(JsonSerializer.Serialize(config));
+                        }
+                    }
+                    
+                ]
             }
         ];
     }
+
+    private string CheckForNullOrEmpty(string? content)
+    {
+        return string.IsNullOrEmpty(content)
+            ? "ISEMPTY"
+            : "ISNOTEMPTY";
+    }
 }