Move ParseX logic out of TL.MTProto

EXAMPLES.md

@@ -23,8 +23,8 @@ More examples can also be found in answers to [StackOverflow questions](https://
 <a name="msg-by-name"></a>
 ### Send a message to someone by @username
 ```csharp
-var resolved = await client.Contacts_ResolveUsername("username"); // without the @
+var resolved = await client.Contacts_ResolveUsername("MyEch0_Bot"); // username without the @
-await client.SendMessageAsync(resolved, "Hello!");
+await client.SendMessageAsync(resolved, "/start");
 ```
 *Note: This also works if the @username points to a channel/group, but you must already have joined that channel before posting there.
 If the username is invalid/unused, the API call raises an exception.*

README.md

@@ -1,13 +1,15 @@
 [![NuGet version](https://img.shields.io/nuget/v/WTelegramClient)](https://www.nuget.org/packages/WTelegramClient/)
 [![Build Status](https://img.shields.io/azure-devops/build/wiz0u/WTelegramClient/7)](https://dev.azure.com/wiz0u/WTelegramClient/_build?definitionId=7)
-[![API Layer](https://img.shields.io/badge/API_Layer-139-blueviolet)](https://corefork.telegram.org/methods)
+[![API Layer](https://img.shields.io/badge/API_Layer-140-blueviolet)](https://corefork.telegram.org/methods)
 [![dev nuget](https://img.shields.io/badge/dynamic/json?color=ffc040&label=dev%20nuget&query=%24.versions%5B0%5D&url=https%3A%2F%2Fpkgs.dev.azure.com%2Fwiz0u%2F81bd92b7-0bb9-4701-b426-09090b27e037%2F_packaging%2F46ce0497-7803-4bd4-8c6c-030583e7c371%2Fnuget%2Fv3%2Fflat2%2Fwtelegramclient%2Findex.json)](https://dev.azure.com/wiz0u/WTelegramClient/_packaging?_a=package&feed=WTelegramClient&package=WTelegramClient&protocolType=NuGet)
 [![Support Chat](https://img.shields.io/badge/Chat_with_us-on_Telegram-0088cc)](https://t.me/WTelegramClient)
 [![Donate](https://img.shields.io/badge/Help_this_project:-Donate-ff4444)](http://wizou.fr/donate.html)
 
 ## _Telegram Client API library written 100% in C# and .NET Standard_
 
-This ReadMe is a **quick but important tutorial** to learn the fundamentals about this library. Please read it all.
+This ReadMe is a **quick but important tutorial** to learn the fundamentals about this library. Please read it all.  
+This library allows you to connect to Telegram and control a user programmatically (or a bot, but [Telegram.Bot](https://github.com/TelegramBots/Telegram.Bot) is much easier for that).
+All the Telegram Client APIs are supported so you can do everything the user could do with a full Telegram GUI client.
 
 >⚠️ This library relies on asynchronous C# programming (`async/await`) so make sure you are familiar with this advanced topic before proceeding.  
 >If you are a beginner in C#, starting a project based on this library might not be a great idea.

src/Client.cs

@@ -1110,11 +1110,21 @@ namespace WTelegram
 			switch (result)
 			{
 				case T resultT: return resultT;
-				case RpcError rpcError:
+				case RpcError { error_code: var code, error_message: var message }:
-					var x = rpcError.ParseX();
+					int x = -1;
-					if (rpcError.error_code == 303 && rpcError.error_message.EndsWith("_MIGRATE_X"))
+					for (int index = message.Length - 1; index > 0 && (index = message.LastIndexOf('_', index - 1)) >= 0;)
+						if (message[index + 1] is >= '0' and <= '9')
+						{
+							int end = ++index;
+							do end++; while (end < message.Length && message[end] is >= '0' and <= '9');
+							x = int.Parse(message[index..end]);
+							message = $"{message[0..index]}X{message[end..]}";
+							break;
+						}
+
+					if (code == 303 && message.EndsWith("_MIGRATE_X"))
 					{
-						if (rpcError.error_message != "FILE_MIGRATE_X")
+						if (message != "FILE_MIGRATE_X")
 						{
 							// this is a hack to migrate _dcSession in-place (staying in same Client):
 							Session.DCSession dcSession;
@@ -1129,7 +1139,7 @@ namespace WTelegram
 							goto retry;
 						}
 					}
-					else if (rpcError.error_code == 420 && rpcError.error_message.EndsWith("_WAIT_X"))
+					else if (code == 420 && message.EndsWith("_WAIT_X"))
 					{
 						if (x <= FloodRetryThreshold)
 						{
@@ -1137,17 +1147,17 @@ namespace WTelegram
 							goto retry;
 						}
 					}
-					else if (rpcError.error_code == -503 && !got503)
+					else if (code == -503 && !got503)
 					{
 						got503 = true;
 						goto retry;
 					}
-					else if (rpcError.error_code == 500 && rpcError.error_message == "AUTH_RESTART")
+					else if (code == 500 && message == "AUTH_RESTART")
 					{
 						_session.UserId = 0; // force a full login authorization flow, next time
 						lock (_session) _session.Save();
 					}
-					throw new RpcException(rpcError.error_code, rpcError.error_message, x);
+					throw new RpcException(code, message, x);
 				case ReactorError:
 					goto retry;
 				default:

src/TL.MTProto.cs

@@ -198,22 +198,6 @@ namespace TL
 	{
 		public int error_code;
 		public string error_message;
-
-		public int ParseX() // ⚠ Method replace number in error_message with a X
-		{
-			for (int index = error_message.Length - 1; index > 0 && (index = error_message.LastIndexOf('_', index - 1)) >= 0;)
-			{
-				if (error_message[index + 1] is >= '0' and <= '9')
-				{
-					int end = ++index;
-					do end++; while (end < error_message.Length && error_message[end] is >= '0' and <= '9');
-					var x = int.Parse(error_message[index..end]);
-					error_message = $"{error_message[0..index]}X{error_message[end..]}";
-					return x;
-				}
-			}
-			return -1;
-		}
 	}
 
 	public abstract class RpcDropAnswer : IObject { }