Several updates

.gitignore

@@ -1,6 +1,12 @@
+# .net build artiifacts
 bin/
 obj/
 /packages/
+
 riderModule.iml
 /_ReSharper.Caches/
-Lagrange.Core/Utility/Crypto/Provider/Dandelion/*.cs
+Lagrange.Core/Utility/Crypto/Provider/Dandelion/*.cs
+
+# rider files
+.idea/
+*.DotSettings.user

Lagrange.Core.Test/Tests/WtLoginTest.cs

@@ -36,7 +36,7 @@ public async Task FetchQrCode()
         var qrCode = await bot.FetchQrCode();
         if (qrCode != null)
         {
-            await File.WriteAllBytesAsync("qr.png", qrCode);
+            await File.WriteAllBytesAsync("qr.png", qrCode.Value.QrCode);
             await bot.LoginByQrCode();
         }
     }

Lagrange.Core/Common/Interface/Api/BotExt.cs

@@ -7,9 +7,9 @@ public static class BotExt
     /// <summary>
     /// Fetch the qrcode for QRCode Login
     /// </summary>
-    /// <returns>the byte of QRCode, usually in the form of PNG</returns>
-    public static async Task<byte[]?> FetchQrCode(this BotContext bot)
-        => await bot.ContextCollection.Business.WtExchangeLogic.FetchQrCode();
+    /// <returns>return url and qrcode image in PNG format</returns>
+    public static Task<(string Url, byte[] QrCode)?> FetchQrCode(this BotContext bot)
+        => bot.ContextCollection.Business.WtExchangeLogic.FetchQrCode();
 
     /// <summary>
     /// Use this method to login by QrCode, you should call <see cref="FetchQrCode"/> first
@@ -20,8 +20,8 @@ public static Task LoginByQrCode(this BotContext bot)
     /// <summary>
     /// Use this method to login by password, EasyLogin may be preformed if there is sig in <see cref="BotKeystore"/>
     /// </summary>
-    public static async Task<bool> LoginByPassword(this BotContext bot)
-        => await bot.ContextCollection.Business.WtExchangeLogic.LoginByPassword();
+    public static Task<bool> LoginByPassword(this BotContext bot)
+        => bot.ContextCollection.Business.WtExchangeLogic.LoginByPassword();
 
     /// <summary>
     /// Submit the captcha of the url given by the <see cref="EventInvoker.OnBotCaptchaEvent"/>

Lagrange.Core/Internal/Context/Logic/Implementation/WtExchangeLogic.cs

@@ -56,7 +56,7 @@ public override async Task Incoming(ProtocolEvent e)
     /// <para>1. resolve wtlogin.trans_emp CMD0x31 packet</para>
     /// <para>2. Schedule wtlogin.trans_emp CMD0x12 Task</para>
     /// </summary>
-    public async Task<byte[]?> FetchQrCode()
+    public async Task<(string, byte[])?> FetchQrCode()
     {
         Collection.Log.LogInfo(Tag, "Connecting Servers...");
         if (!await Collection.Socket.Connect()) return null;
@@ -73,7 +73,7 @@ public override async Task Incoming(ProtocolEvent e)
             Collection.Keystore.Session.QrUrl = @event.Url;
 
             Collection.Log.LogInfo(Tag, $"QrCode Fetched, Expiration: {@event.Expiration} seconds");
-            return @event.QrCode;
+            return (@event.Url, @event.QrCode);
         }
         return null;
     }

Lagrange.Core/Message/MessageBuilder.cs

@@ -81,6 +81,12 @@ public MessageBuilder Image(byte[] file)
 
         return this;
     }
+
+    public MessageBuilder Add(IMessageEntity entity)
+    {
+        _chain.Add(entity);
+        return this;
+    }
 
     public MessageChain Build() => _chain;
 }

Lagrange.OneBot/LagrangeApp.cs

@@ -72,7 +72,7 @@ internal LagrangeApp(IHost host)
             var qrCode = await Instance.FetchQrCode();
             if (qrCode != null)
             {
-                QrCodeHelper.Output(Instance.ContextCollection.Keystore.Session.QrUrl ?? "");
+                QrCodeHelper.Output(qrCode.Value.Url ?? "");
                 await Instance.LoginByQrCode();
             }
         }