feat: add hot reload settings

utils/InMemoryDB.cs

@@ -1,15 +1,45 @@
 using System;
-using System.IO;
-using Path = Avalonia.Controls.Shapes.Path;
+using System.ClientModel;
+using OpenAI;
+using OpenAI.Chat;
 
 namespace highminded.utils;
 
 public class InMemoryDb
 {
+    internal ChatClient ChatClient;
+    internal SettingsManager<AppSettings> SettingsManager;
+
     // Initialize Singleton Class
-    InMemoryDb() { }
+    private InMemoryDb()
+    {
+        SettingsManager = new SettingsManager<AppSettings>();
+        if (SettingsManager.Settings.ApiKey != string.Empty)
+        {
+            InitOpenAIClient();
+        }
+    }
+
+    public void InitOpenAIClient()
+    {
+        ChatClient = new ChatClient(
+            model: SettingsManager.Settings.Model,
+            credential: new ApiKeyCredential(SettingsManager.Settings.ApiKey),
+            options: new OpenAIClientOptions
+            {
+                Endpoint = new Uri(SettingsManager.Settings.ApiURL)
+            }
+        );
+    }
+
+    public void SaveSettings(AppSettings settings)
+    {
+        SettingsManager.Settings.ApiKey = settings.ApiKey;
+        SettingsManager.Settings.ApiURL = settings.ApiURL;
+        SettingsManager.Settings.Model = settings.Model;
+        SettingsManager.Save();
+        InitOpenAIClient();
+    }
 
     public static readonly InMemoryDb Obj = new InMemoryDb();
-
-    public SettingsManager<AppSettings> settingsManager = new SettingsManager<AppSettings>();
 }