Adding additional intellisense documentation to refurbished Json serialization

- and adding V21 version as well (as in alpha)

TelegramBotBase.Extensions.Images.IronSoftware/ImageExtensions.cs

@@ -4,6 +4,7 @@ using System.IO;
 using System.Threading.Tasks;
 using Telegram.Bot.Types;
 using TelegramBotBase.Form;
+using TelegramBotBase.Interfaces;
 using TelegramBotBase.Sessions;
 using static IronSoftware.Drawing.AnyBitmap;
 using SKImage = SixLabors.ImageSharp.Image;
@@ -37,7 +38,7 @@ namespace TelegramBotBase.Extensions.Images.IronSoftware
         /// <param name="replyTo"></param>
         /// <param name="disableNotification"></param>
         /// <returns></returns>
-        public static async Task<Message> SendPhoto(this DeviceSession session, AnyBitmap image, string name,
+        public static async Task<Message> SendPhoto(this IDeviceSession session, AnyBitmap image, string name,
                                                     string caption, ButtonForm buttons = null, int replyTo = 0,
                                                     bool disableNotification = false)
         {
@@ -58,7 +59,7 @@ namespace TelegramBotBase.Extensions.Images.IronSoftware
         /// <param name="replyTo"></param>
         /// <param name="disableNotification"></param>
         /// <returns></returns>
-        public static async Task<Message> SendPhoto(this DeviceSession session, SKImage image, string name,
+        public static async Task<Message> SendPhoto(this IDeviceSession session, SKImage image, string name,
                                                     string caption, ButtonForm buttons = null, int replyTo = 0,
                                                     bool disableNotification = false)
         {

TelegramBotBase.Extensions.Images.IronSoftware/TelegramBotBase.Extensions.Images.IronSoftware.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFrameworks>netstandard2.0;netcoreapp3.1;net6</TargetFrameworks>
+        <TargetFrameworks>netcoreapp3.1;net6</TargetFrameworks>
         <RepositoryUrl>https://github.com/MajMcCloud/TelegramBotFramework/tree/development/TelegramBotBase.Extensions.Images.IronSoftware</RepositoryUrl>
         <PackageProjectUrl>https://github.com/MajMcCloud/TelegramBotFramework/tree/development/TelegramBotBase.Extensions.Images.IronSoftware</PackageProjectUrl>
         <Copyright>MIT</Copyright>
@@ -19,11 +19,14 @@
             <PrivateAssets>all</PrivateAssets>
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
         </PackageReference>
-        <PackageReference Include="TelegramBotBase" Version="6.0.0" />
     </ItemGroup>
 
     <ItemGroup>
       <Folder Include="Properties\" />
     </ItemGroup>
 
+    <ItemGroup>
+      <ProjectReference Include="..\TelegramBotBase\TelegramBotBase.csproj" />
+    </ItemGroup>
+
 </Project>

TelegramBotBase.Extensions.Images/ImageExtensions.cs

@@ -4,7 +4,7 @@ using System.IO;
 using System.Threading.Tasks;
 using Telegram.Bot.Types;
 using TelegramBotBase.Form;
-using TelegramBotBase.Sessions;
+using TelegramBotBase.Interfaces;
 
 namespace TelegramBotBase.Extensions.Images
 {
@@ -27,7 +27,7 @@ namespace TelegramBotBase.Extensions.Images
         /// <param name="replyTo"></param>
         /// <param name="disableNotification"></param>
         /// <returns></returns>
-        public static async Task<Message> SendPhoto(this DeviceSession session, Image image, string name,
+        public static async Task<Message> SendPhoto(this IDeviceSession session, Image image, string name,
                                                     string caption, ButtonForm buttons = null, int replyTo = 0,
                                                     bool disableNotification = false)
         {
@@ -48,7 +48,7 @@ namespace TelegramBotBase.Extensions.Images
         /// <param name="replyTo"></param>
         /// <param name="disableNotification"></param>
         /// <returns></returns>
-        public static async Task<Message> SendPhoto(this DeviceSession session, Bitmap image, string name,
+        public static async Task<Message> SendPhoto(this IDeviceSession session, Bitmap image, string name,
                                                     string caption, ButtonForm buttons = null, int replyTo = 0,
                                                     bool disableNotification = false)
         {

TelegramBotBase.Extensions.Images/TelegramBotBase.Extensions.Images.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFrameworks>netstandard2.0;netcoreapp3.1;net6</TargetFrameworks>
+        <TargetFrameworks>netcoreapp3.1;net6;net7;net8</TargetFrameworks>
         <RepositoryUrl>https://github.com/MajMcCloud/TelegramBotFramework/tree/development/TelegramBotBase.Extensions.Images</RepositoryUrl>
         <PackageProjectUrl>https://github.com/MajMcCloud/TelegramBotFramework/tree/development/TelegramBotBase.Extensions.Images</PackageProjectUrl>
         <Copyright>MIT</Copyright>
@@ -21,11 +21,14 @@
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
         </PackageReference>
         <PackageReference Include="System.Drawing.Common" Version="6.0.0" />
-        <PackageReference Include="TelegramBotBase" Version="6.0.0" />
     </ItemGroup>
 
     <ItemGroup>
       <Folder Include="Properties\" />
     </ItemGroup>
 
+    <ItemGroup>
+      <ProjectReference Include="..\TelegramBotBase\TelegramBotBase.csproj" />
+    </ItemGroup>
+
 </Project>

TelegramBotBase.Extensions.Serializer.Legacy.NewtonsoftJson/BotBaseBuilderExtensions.cs

@@ -0,0 +1,41 @@
+using System;
+using System.IO;
+using TelegramBotBase.Builder;
+using TelegramBotBase.Builder.Interfaces;
+
+namespace TelegramBotBase.Extensions.Serializer.Legacy.NewtonsoftJson
+{
+    public static class BotBaseBuilderExtensions
+    {
+
+        /// <summary>
+        ///     Using the complex version of .Net JSON, which can serialize all objects.
+        ///     Saves in application directory.
+        /// </summary>
+        /// <param name="path"></param>
+        /// <returns></returns>
+        public static ILanguageSelectionStage UseNewtonsoftJson(this ISessionSerializationStage builder)
+        {
+            var path = Path.Combine(Directory.GetCurrentDirectory(), "states.json");
+            
+            builder.UseNewtonsoftJson(path);
+
+            return builder as BotBaseBuilder;
+        }
+
+        /// <summary>
+        ///     Using the complex version of .Net JSON, which can serialize all objects.
+        ///     Saves in application directory.
+        /// </summary>
+        /// <param name="path"></param>
+        /// <returns></returns>
+        public static ILanguageSelectionStage UseNewtonsoftJson(this ISessionSerializationStage builder, String path)
+        {
+            var _stateMachine = new NewtonsoftJsonStateMachine(path);
+
+            builder.UseSerialization(_stateMachine);
+
+            return builder as BotBaseBuilder;
+        }
+    }
+}

TelegramBotBase.Extensions.Serializer.Legacy.NewtonsoftJson/NewtonsoftJsonStateMachine.cs

@@ -0,0 +1,94 @@
+using System;
+using System.Data;
+using System.IO;
+using Newtonsoft.Json;
+using TelegramBotBase.Args;
+using TelegramBotBase.Base;
+using TelegramBotBase.Form;
+using TelegramBotBase.Interfaces;
+
+namespace TelegramBotBase.Extensions.Serializer.Legacy.NewtonsoftJson
+{
+    /// <summary>
+    ///     Is used for all complex data types. Use if other default machines are not working.
+    /// </summary>
+    public class NewtonsoftJsonStateMachine : IStateMachine
+    {
+        /// <summary>
+        ///     Will initialize the state machine.
+        /// </summary>
+        /// <param name="file">Path of the file and name where to save the session details.</param>
+        /// <param name="fallbackStateForm">
+        ///     Type of Form which will be saved instead of Form which has
+        ///     <seealso cref="Attributes.IgnoreState" /> attribute declared. Needs to be subclass of
+        ///     <seealso cref="Form.FormBase" />.
+        /// </param>
+        /// <param name="overwrite">Declares of the file could be overwritten.</param>
+        public NewtonsoftJsonStateMachine(string file, Type fallbackStateForm = null, bool overwrite = true)
+        {
+            FallbackStateForm = fallbackStateForm;
+
+            if (FallbackStateForm != null && !FallbackStateForm.IsSubclassOf(typeof(FormBase)))
+            {
+                throw new ArgumentException($"{nameof(FallbackStateForm)} is not a subclass of {nameof(FormBase)}");
+            }
+
+            FilePath = file ?? throw new ArgumentNullException(nameof(file));
+            Overwrite = overwrite;
+        }
+
+        public string FilePath { get; set; }
+
+        public bool Overwrite { get; set; }
+
+        public Type FallbackStateForm { get; }
+
+        public StateContainer LoadFormStates()
+        {
+            try
+            {
+                var content = File.ReadAllText(FilePath);
+
+                var sc = JsonConvert.DeserializeObject<StateContainer>(content, new JsonSerializerSettings
+                {
+                    TypeNameHandling = TypeNameHandling.All,
+                    TypeNameAssemblyFormatHandling = TypeNameAssemblyFormatHandling.Simple
+                });
+
+                return sc;
+            }
+            catch
+            {
+            }
+
+            return new StateContainer();
+        }
+
+        public void SaveFormStates(SaveStatesEventArgs e)
+        {
+            if (File.Exists(FilePath))
+            {
+                if (!Overwrite)
+                {
+                    throw new Exception("File exists already.");
+                }
+
+                File.Delete(FilePath);
+            }
+
+            try
+            {
+                var content = JsonConvert.SerializeObject(e.States, Formatting.Indented, new JsonSerializerSettings
+                {
+                    TypeNameHandling = TypeNameHandling.All,
+                    TypeNameAssemblyFormatHandling = TypeNameAssemblyFormatHandling.Simple
+                });
+
+                File.WriteAllText(FilePath, content);
+            }
+            catch
+            {
+            }
+        }
+    }
+}

TelegramBotBase.Extensions.Serializer.Legacy.NewtonsoftJson/README.md

@@ -0,0 +1,31 @@
+# TelegramBotBase.Extensions.Serializer.Legacy.NewtonsoftJson
+
+[![NuGet version (TelegramBotBase)](https://img.shields.io/nuget/v/TelegramBotBase.Extensions.Serializer.Legacy.NewtonsoftJson.svg?style=flat-square)](https://www.nuget.org/packages/TelegramBotBase.Extensions.Serializer.Legacy.NewtonsoftJson/)
+[![Telegram chat](https://img.shields.io/badge/Support_Chat-Telegram-blue.svg?style=flat-square)](https://www.t.me/tgbotbase)
+
+[![License](https://img.shields.io/github/license/MajMcCloud/telegrambotframework.svg?style=flat-square&maxAge=2592000&label=License)](https://raw.githubusercontent.com/MajMcCloud/TelegramBotFramework/master/LICENCE.md)
+[![Package Downloads](https://img.shields.io/nuget/dt/TelegramBotBase.Extensions.Serializer.Legacy.NewtonsoftJson.svg?style=flat-square&label=Package%20Downloads)](https://www.nuget.org/packages/TelegramBotBase.Extensions.Serializer.Legacy.NewtonsoftJson)
+
+
+### Legacy version to recover with old dependencies using Newtonsoft.Json for session serialization
+
+
+## How to use
+
+```csharp
+using TelegramBotBase.Extensions.Serializer.Legacy.NewtonsoftJson;
+
+
+var bot = BotBaseBuilder
+            .Create()
+            .WithAPIKey(APIKey)
+            .DefaultMessageLoop()
+            .WithStartForm<Start>()
+            .NoProxy()
+            .OnlyStart()
+            .UseNewtonsoftJson()
+            .UseEnglish()
+            .Build();
+
+bot.Start();
+```

TelegramBotBase.Extensions.Serializer.Legacy.NewtonsoftJson/TelegramBotBase.Extensions.Serializer.Legacy.NewtonsoftJson.csproj

@@ -0,0 +1,27 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFrameworks>netstandard2.0;netcoreapp3.1;net6;net7;net8;net9</TargetFrameworks>
+        <GeneratePackageOnBuild>True</GeneratePackageOnBuild>
+        <RepositoryUrl>https://github.com/MajMcCloud/TelegramBotFramework</RepositoryUrl>
+        <PackageProjectUrl>https://github.com/MajMcCloud/TelegramBotFramework</PackageProjectUrl>
+        <Copyright>MIT</Copyright>
+        <IncludeSymbols>true</IncludeSymbols>
+        <SymbolPackageFormat>snupkg</SymbolPackageFormat>
+        <AssemblyVersion>1.0.1</AssemblyVersion>
+        <FileVersion>1.0.1</FileVersion>
+        <Version>1.0.1</Version>
+        <Description>A session serializer for Newtonsoft Json.
+        </Description>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.1.1">
+            <PrivateAssets>all</PrivateAssets>
+            <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+        </PackageReference>
+        <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+        <PackageReference Include="TelegramBotBase" Version="6.0.0" />
+    </ItemGroup>
+
+</Project>

TelegramBotBase.SourceGenerators/TelegramBotBase.SourceGenerators.csproj

@@ -0,0 +1,25 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netstandard2.0</TargetFramework>
+	<ImplicitUsings>disable</ImplicitUsings>
+	<Nullable>enable</Nullable>
+	<EnforceExtendedAnalyzerRules>true</EnforceExtendedAnalyzerRules>
+	<OutputItemType>Analyzer</OutputItemType>
+	<GeneratePackageOnBuild>false</GeneratePackageOnBuild>
+	<LangVersion>latest</LangVersion>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <EmbeddedResource Include="Resources\Telegram.Bot.xml" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.4">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.10.0" />
+  </ItemGroup>
+
+</Project>

TelegramBotBase.SourceGenerators/TelegramDeviceExtensionGenerator.cs

@@ -0,0 +1,251 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.IO;
+using System.Linq;
+using System.Reflection;
+using System.Reflection.Metadata;
+using System.Resources;
+using System.Security.Cryptography.X509Certificates;
+using System.Text;
+using Microsoft.CodeAnalysis;
+using Microsoft.CodeAnalysis.CSharp;
+using Microsoft.CodeAnalysis.CSharp.Syntax;
+using Microsoft.CodeAnalysis.Text;
+using TelegramBotBase.SourceGenerators;
+
+namespace TelegramBotBase
+{
+
+    [Generator(LanguageNames.CSharp)]
+    public class TelegramDeviceExtensionGenerator : IIncrementalGenerator
+    {
+        static XmlDocumentationLoader xml;
+
+
+        public void Initialize(IncrementalGeneratorInitializationContext context)
+        {
+            var provider = context.SyntaxProvider.CreateSyntaxProvider(
+                predicate: (c, _) => c is ClassDeclarationSyntax,
+                transform: (n, _) => (ClassDeclarationSyntax)n.Node)
+                .Where(a => a is not null);
+
+
+            var compilation = context.CompilationProvider;
+
+            context.RegisterSourceOutput(compilation, (spc, source) => Execute(spc, source));
+
+
+
+        }
+
+
+        private void Execute(SourceProductionContext context, Compilation compilation)
+        {
+            //if (!Debugger.IsAttached) Debugger.Launch();
+
+            StringBuilder sb = new StringBuilder();
+            sb.AppendLine();
+
+            //Search for reference library
+            var telegram_package = compilation.References.FirstOrDefault(a => a.Display != null && a.Display.Contains("Telegram.Bot"));
+            if (telegram_package == null)
+                return;
+
+
+
+            //Load only once
+            if (xml == null)
+            {
+                xml = new XmlDocumentationLoader();
+                xml.ReadEmbeddedXml("Telegram.Bot.xml");
+            }
+
+            var assemblySymbol = compilation.GetAssemblyOrModuleSymbol(telegram_package) as IAssemblySymbol;
+
+            if (assemblySymbol == null)
+                return;
+
+            if (assemblySymbol.Name != "Telegram.Bot")
+                return;
+
+            //Get class which includes the existing methods
+            var apiClass = assemblySymbol.GetTypeByMetadataName("Telegram.Bot.TelegramBotClientExtensions");
+            if (apiClass == null)
+                return;
+
+            //Get existing list of methods
+            var methods = apiClass.GetMembers().OfType<IMethodSymbol>().ToList();
+
+
+            foreach (var method in methods)
+            {
+                if (!method.Parameters.Any(a => a.Type.Name == "ITelegramBotClient"))
+                    continue;
+
+                if (!method.Parameters.Any(a => a.Type.Name == "ChatId"))
+                    continue;
+
+                if (method.Name == ".ctor")
+                    continue;
+
+                String parameters = "";
+                String subCallParameters = "";
+                foreach (var par in method.Parameters)
+                {
+                    if (par.Name == "botClient")
+                        continue;
+
+                    if (!string.IsNullOrEmpty(parameters))
+                    {
+                        parameters += ", ";
+                    }
+
+                    if (!string.IsNullOrEmpty(subCallParameters))
+                    {
+                        subCallParameters += ", ";
+                    }
+
+                    if (par.Name == "chatId")
+                    {
+                        subCallParameters += $"device.DeviceId";
+                        continue;
+                    }
+
+                    subCallParameters += $"{par.Name}";
+                    parameters += $"{par.Type.ToDisplayString()} {par.Name}";
+
+                    if (par.HasExplicitDefaultValue)
+                    {
+                        var defaultValue = par.ExplicitDefaultValue;
+
+                        // Handle specific default value cases
+                        if (defaultValue == null)
+                        {
+                            if(par.Name == "cancellationToken")
+                            {
+                                parameters += " = default";
+                            }
+                            else
+                            {
+                                parameters += " = null";
+                            }
+
+                            
+                        }
+                        else if (defaultValue is string)
+                        {
+                            parameters += $" = \"{defaultValue}\""; // Add quotes around string default values
+                        }
+                        else if (defaultValue is bool)
+                        {
+                            parameters += $" = {defaultValue.ToString().ToLower()}"; // Use lower case for booleans (true/false)
+                        }
+                        else if (defaultValue is char)
+                        {
+                            parameters += $" = '{defaultValue}'"; // Use single quotes for char
+                        }
+                        else
+                        {
+                            parameters += $" = {defaultValue}"; // General case for other types (numbers, enums, etc.)
+                        }
+                    }
+
+
+                }
+
+
+                var returnStatement = "";
+
+                if (method.ReturnType is INamedTypeSymbol namedType && namedType.IsGenericType && namedType.ConstructedFrom.Name == "Task" && namedType.ContainingNamespace.ToDisplayString() == "System.Threading.Tasks")
+                {
+                    returnStatement = "return await";
+                }
+                else if (method.ReturnType.Name == "Task" && method.ReturnType.ContainingNamespace.ToDisplayString() == "System.Threading.Tasks")
+                {
+                    returnStatement = "await";
+                }
+                else if (method.ReturnsVoid)
+                {
+                    returnStatement = "";
+                }
+                else
+                {
+                    returnStatement = "return ";
+                }
+
+                String tmp = GenerateMethod(method, parameters, subCallParameters, returnStatement);
+
+                sb.Append(tmp);
+
+            }
+
+
+
+
+            //The generated source
+            var sourceCode = $$"""
+            using System;
+            using System.Threading.Tasks;
+            using TelegramBotBase.Interfaces;
+            using TelegramBotBase.Sessions;
+            using Telegram.Bot;
+            using Telegram.Bot.Extensions;
+            using Telegram.Bot.Requests;
+            using Telegram.Bot.Types.Enums;
+            using Telegram.Bot.Types.InlineQueryResults;
+            using Telegram.Bot.Types.Payments;
+            using Telegram.Bot.Types.ReplyMarkups;
+            using File = Telegram.Bot.Types.File;
+
+            #nullable enable
+            namespace TelegramBotBase;
+        
+            public static class DeviceExtensions
+            {
+                {{sb.ToString()}}
+            }
+            
+            """;
+
+            //Cleanup
+            sourceCode = sourceCode.Replace("System.Threading.Tasks.", "");
+
+
+            context.AddSource("DeviceExtensions.g.cs", SourceText.From(sourceCode, Encoding.UTF8));
+
+        }
+
+        /// <summary>
+        /// Test
+        /// </summary>
+        /// <param name="method"></param>
+        /// <param name="parameters"></param>
+        /// <param name="subCallParameters"></param>
+        /// <param name="returnStatement"></param>
+        /// <returns></returns>
+        private String GenerateMethod(IMethodSymbol? method, string parameters, string subCallParameters, string returnStatement)
+        {
+            //Adding xml comments from embedded xml file (Workaround)
+            String xml_comments = xml?.GetDocumentationLinesForSymbol(method);
+
+            StringBuilder sb = new StringBuilder();
+
+            sb.AppendLine(xml_comments);
+
+            sb.AppendLine($"    public static async {method.ReturnType.ToDisplayString()} {method.Name}(this IDeviceSession device, {parameters})");
+
+            sb.AppendLine($"    {{");
+
+            sb.AppendLine($"        {returnStatement} device.Client.TelegramClient.{method.Name}({subCallParameters});");
+
+            sb.AppendLine($"    }}");
+
+            sb.AppendLine();
+
+            sb.AppendLine();
+
+            return sb.ToString();
+        }
+    }
+}

TelegramBotBase.SourceGenerators/XmlDocumentationLoader.cs

@@ -0,0 +1,89 @@
+using Microsoft.CodeAnalysis;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Xml.Linq;
+using System.Xml.XPath;
+
+namespace TelegramBotBase.SourceGenerators
+{
+    public class XmlDocumentationLoader
+    {
+        XDocument xDocument;
+
+        public string GetDocumentationLinesForSymbol(ISymbol symbol)
+        {
+            var docElement = xDocument?.Descendants("member")
+                .FirstOrDefault(e => e.Attribute("name")?.Value == GetDocumentationCommentId(symbol));
+
+
+            StringBuilder sb = new StringBuilder();
+
+            XNode first = docElement.FirstNode;
+            do
+            {
+                sb.AppendLine(first.ToString());
+
+
+
+                first = first.NextNode;
+
+            } 
+            while (first.NextNode != null);
+
+            var lines = sb.ToString().Split('\n');
+
+            sb = new StringBuilder();
+
+            foreach (var line in lines)
+            {
+                if (line == "")
+                    continue;
+
+                sb.AppendLine($"    /// {line.Trim()}");
+
+
+            }
+
+
+            return sb.ToString().Trim();
+        }
+
+        private string GetDocumentationCommentId(ISymbol symbol)
+        {
+            // Returns the documentation comment ID for a symbol
+            return symbol.GetDocumentationCommentId();
+        }
+
+        public XDocument ReadEmbeddedXml(string resourceName)
+        {
+            // Get the assembly where the resource is embedded
+            Assembly assembly = Assembly.GetExecutingAssembly();
+
+            // Construct the full resource name
+            string fullResourceName = $"{assembly.GetName().Name}.Resources.{resourceName}";
+
+            var names = assembly.GetManifestResourceNames();
+
+            if (!names.Contains(fullResourceName))
+                return null;
+
+            // Open a stream to the embedded resource
+            using (Stream stream = assembly.GetManifestResourceStream(fullResourceName))
+            {
+                if (stream == null)
+                {
+                    //throw new FileNotFoundException("Resource not found", fullResourceName);
+                    return null;
+                }
+
+                xDocument = XDocument.Load(stream);
+                // Load the stream into an XDocument
+                return xDocument;
+            }
+        }
+    }
+}

TelegramBotBase.Test/Tests/DataSources/CustomDataSource.cs

@@ -3,7 +3,7 @@ using System.Collections.Generic;
 using System.Globalization;
 using System.IO;
 using System.Linq;
-using Newtonsoft.Json;
+using System.Text.Json;
 using TelegramBotBase.Controls.Hybrid;
 using TelegramBotBase.DataSources;
 using TelegramBotBase.Form;
@@ -36,7 +36,7 @@ public class CustomDataSource : ButtonFormDataSource
         {
             try
             {
-                var list = JsonConvert.DeserializeObject<List<string>>(File.ReadAllText("countries.json"));
+                var list = JsonSerializer.Deserialize<List<string>>(File.ReadAllText("countries.json"));
 
 
                 Countries = list;
@@ -56,7 +56,7 @@ public class CustomDataSource : ButtonFormDataSource
 
             Countries = countries;
 
-            var tmp = JsonConvert.SerializeObject(countries);
+            var tmp = JsonSerializer.Serialize(countries);
 
             File.WriteAllText(AppContext.BaseDirectory + "countries.json", tmp);
         }

TelegramBotBase/Args/BotCommandEventArgs.cs

@@ -1,7 +1,7 @@
 using System;
 using System.Collections.Generic;
 using Telegram.Bot.Types;
-using TelegramBotBase.Sessions;
+using TelegramBotBase.Interfaces;
 
 namespace TelegramBotBase.Args;
 
@@ -15,7 +15,7 @@ public class BotCommandEventArgs : EventArgs
     }
 
     public BotCommandEventArgs(string command, List<string> parameters, Message message, long deviceId,
-                               DeviceSession device)
+                               IDeviceSession device)
     {
         Command = command;
         Parameters = parameters;
@@ -30,7 +30,7 @@ public class BotCommandEventArgs : EventArgs
 
     public long DeviceId { get; set; }
 
-    public DeviceSession Device { get; set; }
+    public IDeviceSession Device { get; set; }
 
     public bool Handled { get; set; } = false;
 

TelegramBotBase/Args/MessageIncomeEventArgs.cs

@@ -1,11 +1,11 @@
 using System;
-using TelegramBotBase.Sessions;
+using TelegramBotBase.Interfaces;
 
 namespace TelegramBotBase.Base;
 
 public class MessageIncomeEventArgs : EventArgs
 {
-    public MessageIncomeEventArgs(long deviceId, DeviceSession device, MessageResult message)
+    public MessageIncomeEventArgs(long deviceId, IDeviceSession device, MessageResult message)
     {
         DeviceId = deviceId;
         Device = device;
@@ -14,7 +14,7 @@ public class MessageIncomeEventArgs : EventArgs
 
     public long DeviceId { get; set; }
 
-    public DeviceSession Device { get; set; }
+    public IDeviceSession Device { get; set; }
 
     public MessageResult Message { get; set; }
 }

TelegramBotBase/Args/SessionBeginEventArgs.cs

@@ -1,11 +1,11 @@
 using System;
-using TelegramBotBase.Sessions;
+using TelegramBotBase.Interfaces;
 
 namespace TelegramBotBase.Base;
 
 public class SessionBeginEventArgs : EventArgs
 {
-    public SessionBeginEventArgs(long deviceId, DeviceSession device)
+    public SessionBeginEventArgs(long deviceId, IDeviceSession device)
     {
         DeviceId = deviceId;
         Device = device;
@@ -13,5 +13,5 @@ public class SessionBeginEventArgs : EventArgs
 
     public long DeviceId { get; set; }
 
-    public DeviceSession Device { get; set; }
+    public IDeviceSession Device { get; set; }
 }

TelegramBotBase/Args/SystemExceptionEventArgs.cs

@@ -1,5 +1,5 @@
 using System;
-using TelegramBotBase.Sessions;
+using TelegramBotBase.Interfaces;
 
 namespace TelegramBotBase.Args;
 
@@ -9,7 +9,7 @@ public class SystemExceptionEventArgs : EventArgs
     {
     }
 
-    public SystemExceptionEventArgs(string command, long deviceId, DeviceSession device, Exception error)
+    public SystemExceptionEventArgs(string command, long deviceId, IDeviceSession device, Exception error)
     {
         Command = command;
         DeviceId = deviceId;
@@ -21,7 +21,7 @@ public class SystemExceptionEventArgs : EventArgs
 
     public long DeviceId { get; set; }
 
-    public DeviceSession Device { get; set; }
+    public IDeviceSession Device { get; set; }
 
     public Exception Error { get; set; }
 }

TelegramBotBase/Args/UnhandledCallEventArgs.cs

@@ -1,6 +1,6 @@
 using System;
 using Telegram.Bot.Types;
-using TelegramBotBase.Sessions;
+using TelegramBotBase.Interfaces;
 
 namespace TelegramBotBase.Args;
 
@@ -12,7 +12,7 @@ public class UnhandledCallEventArgs : EventArgs
     }
 
     public UnhandledCallEventArgs(string command, string rawData, long deviceId, int messageId, Message message,
-                                  DeviceSession device) : this()
+                                  IDeviceSession device) : this()
     {
         Command = command;
         RawData = rawData;
@@ -26,7 +26,7 @@ public class UnhandledCallEventArgs : EventArgs
 
     public long DeviceId { get; set; }
 
-    public DeviceSession Device { get; set; }
+    public IDeviceSession Device { get; set; }
 
     public string RawData { get; set; }
 

TelegramBotBase/Base/ControlBase.cs

@@ -1,5 +1,5 @@
 using System.Threading.Tasks;
-using TelegramBotBase.Sessions;
+using TelegramBotBase.Interfaces;
 
 namespace TelegramBotBase.Base;
 
@@ -8,7 +8,7 @@ namespace TelegramBotBase.Base;
 /// </summary>
 public class ControlBase
 {
-    public DeviceSession Device { get; set; }
+    public IDeviceSession Device { get; set; }
 
     public int Id { get; set; }
 

TelegramBotBase/Base/FormBase.cs

@@ -6,7 +6,7 @@ using System.Threading.Tasks;
 using TelegramBotBase.Args;
 using TelegramBotBase.Base;
 using TelegramBotBase.Form.Navigation;
-using TelegramBotBase.Sessions;
+using TelegramBotBase.Interfaces;
 using static TelegramBotBase.Base.Async;
 
 namespace TelegramBotBase.Form;
@@ -28,7 +28,7 @@ public class FormBase : IDisposable
 
     public NavigationController NavigationController { get; set; }
 
-    public DeviceSession Device { get; set; }
+    public IDeviceSession Device { get; set; }
 
     public MessageClient Client { get; set; }
 

TelegramBotBase/Base/MessageClient.cs

@@ -111,7 +111,7 @@ public class MessageClient
 
     public virtual void StopReceiving()
     {
-        _cancellationTokenSource.Cancel();
+        _cancellationTokenSource?.Cancel();
     }
 
 

TelegramBotBase/Base/MessageResult.cs

@@ -1,8 +1,8 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Text.Json;
 using System.Threading.Tasks;
-using Newtonsoft.Json;
 using Telegram.Bot.Types;
 using Telegram.Bot.Types.Enums;
 
@@ -126,7 +126,7 @@ public class MessageResult : ResultBase
         T cd = null;
         try
         {
-            cd = JsonConvert.DeserializeObject<T>(RawData);
+            cd = JsonSerializer.Deserialize<T>(RawData);
 
             return cd;
         }

TelegramBotBase/Base/ResultBase.cs

@@ -2,13 +2,13 @@
 using System.Threading.Tasks;
 using Telegram.Bot;
 using Telegram.Bot.Types;
-using TelegramBotBase.Sessions;
+using TelegramBotBase.Interfaces;
 
 namespace TelegramBotBase.Base;
 
 public class ResultBase : EventArgs
 {
-    public DeviceSession Device { get; set; }
+    public IDeviceSession Device { get; set; }
 
     public virtual long DeviceId { get; set; }
 

TelegramBotBase/Base/ThreadPoolMessageClient.cs

@@ -81,7 +81,7 @@ public class ThreadPoolMessageClient : MessageClient
 
     public override void StopReceiving()
     {
-        _cancellationTokenSource.Cancel();
+        _cancellationTokenSource?.Cancel();
     }
 
 

TelegramBotBase/Base/UpdateResult.cs

@@ -1,11 +1,11 @@
 using Telegram.Bot.Types;
-using TelegramBotBase.Sessions;
+using TelegramBotBase.Interfaces;
 
 namespace TelegramBotBase.Base;
 
 public class UpdateResult : ResultBase
 {
-    public UpdateResult(Update rawData, DeviceSession device)
+    public UpdateResult(Update rawData, IDeviceSession device)
     {
         RawData = rawData;
         Device = device;

TelegramBotBase/Builder/Interfaces/ISessionSerializationStage.cs

@@ -1,4 +1,5 @@
-using TelegramBotBase.Interfaces;
+using System;
+using TelegramBotBase.Interfaces;
 
 namespace TelegramBotBase.Builder.Interfaces;
 
@@ -22,15 +23,32 @@ public interface ISessionSerializationStage
     ///     Using the complex version of .Net JSON, which can serialize all objects.
     ///     Saves in application directory.
     /// </summary>
+    /// <remarks>
+    ///     <para>
+    ///     Has been changed lately to not use Newtonsoft.Json anymore.
+    ///     For the legacy version add the nuget package below and use the <seealso cref="UseNewtonsoftJson"></seealso> method.
+    ///     </para>
+    ///     <seealso href="https://www.nuget.org/packages/TelegramBotBase.Extensions.Serializer.Legacy.NewtonsoftJson/">TelegramBotBase.Extensions.Serializer.Legacy.NewtonsoftJson</seealso>
+    /// </remarks>
     /// <param name="path"></param>
     /// <returns></returns>
+    /// <seealso cref="UseNewtonsoftJson"/>
     ILanguageSelectionStage UseJSON();
 
     /// <summary>
     ///     Using the complex version of .Net JSON, which can serialize all objects.
+    ///     Saves in application directory.
     /// </summary>
+    /// <remarks>
+    ///     <para>
+    ///     Has been changed lately to not use Newtonsoft.Json anymore.
+    ///     For the legacy version add the nuget package below and use the <seealso cref="UseNewtonsoftJson"></seealso> method.
+    ///     </para>
+    ///     <seealso href="https://www.nuget.org/packages/TelegramBotBase.Extensions.Serializer.Legacy.NewtonsoftJson/">TelegramBotBase.Extensions.Serializer.Legacy.NewtonsoftJson</seealso>
+    /// </remarks>
     /// <param name="path"></param>
     /// <returns></returns>
+    /// <seealso cref="UseNewtonsoftJson"/>
     ILanguageSelectionStage UseJSON(string path);
 
     /// <summary>
@@ -39,6 +57,7 @@ public interface ISessionSerializationStage
     /// </summary>
     /// <param name="path"></param>
     /// <returns></returns>
+    [Obsolete("Use UseJSON instead.")]
     ILanguageSelectionStage UseSimpleJSON();
 
     /// <summary>
@@ -46,6 +65,7 @@ public interface ISessionSerializationStage
     /// </summary>
     /// <param name="path"></param>
     /// <returns></returns>
+    [Obsolete("Use UseJSON instead.")]
     ILanguageSelectionStage UseSimpleJSON(string path);
 
     /// <summary>

TelegramBotBase/Form/CallbackData.cs

@@ -1,16 +1,18 @@
-using Newtonsoft.Json;
+using System.Text.Json;
 using System.Text;
 using TelegramBotBase.Exceptions;
+using System.Text.Json.Serialization;
 
 namespace TelegramBotBase.Form;
 
 /// <summary>
-///     Base class for serializing buttons and data
+/// Base class for serializing buttons and data
 /// </summary>
 public class CallbackData
 {
     public CallbackData()
     {
+
     }
 
     public CallbackData(string method, string value)
@@ -19,9 +21,9 @@ public class CallbackData
         Value = value;
     }
 
-    [JsonProperty("m")] public string Method { get; set; }
+    [JsonPropertyName("m")] public string Method { get; set; }
 
-    [JsonProperty("v")] public string Value { get; set; }
+    [JsonPropertyName("v")] public string Value { get; set; }
 
     public static string Create(string method, string value)
     {
@@ -36,7 +38,7 @@ public class CallbackData
     {
         var s = string.Empty;
 
-        s = JsonConvert.SerializeObject(this);
+        s = JsonSerializer.Serialize(this);
 
         //Is data over 64 bytes ?
         int byte_count = Encoding.UTF8.GetByteCount(s);
@@ -55,7 +57,7 @@ public class CallbackData
     /// <returns></returns>
     public static CallbackData Deserialize(string data)
     {
-        return JsonConvert.DeserializeObject<CallbackData>(data);
+        return JsonSerializer.Deserialize<CallbackData>(data);
     }
 
     public static implicit operator string(CallbackData callbackData) => callbackData.Serialize(true);

TelegramBotBase/Form/GroupForm.cs

@@ -1,4 +1,5 @@
-using System.Threading.Tasks;
+using System;
+using System.Threading.Tasks;
 using Telegram.Bot.Types.Enums;
 using TelegramBotBase.Args;
 using TelegramBotBase.Base;
@@ -7,6 +8,8 @@ namespace TelegramBotBase.Form;
 
 public class GroupForm : FormBase
 {
+    //Prior V21
+    [Obsolete("Check Telegram.Bot nuget package changes.")]
     public override async Task Load(MessageResult message)
     {
         switch (message.MessageType)
@@ -46,6 +49,46 @@ public class GroupForm : FormBase
         }
     }
 
+    //Past V21
+    //public override async Task Load(MessageResult message)
+    //{
+    //    switch (message.MessageType)
+    //    {
+    //        case MessageType.NewChatMembers:
+
+    //            await OnMemberChanges(new MemberChangeEventArgs(MessageType.NewChatMembers, message,
+    //                                                            message.Message.NewChatMembers));
+
+    //            break;
+    //        case MessageType.LeftChatMember:
+
+    //            await OnMemberChanges(new MemberChangeEventArgs(MessageType.LeftChatMember, message,
+    //                                                            message.Message.LeftChatMember));
+
+    //            break;
+
+    //        case MessageType.NewChatPhoto:
+    //        case MessageType.DeleteChatPhoto:
+    //        case MessageType.NewChatTitle:
+    //        case MessageType.MigrateFromChatId:
+    //        case MessageType.MigrateToChatId:
+    //        case MessageType.PinnedMessage:
+    //        case MessageType.GroupChatCreated:
+    //        case MessageType.SupergroupChatCreated:
+    //        case MessageType.ChannelChatCreated:
+
+    //            await OnGroupChanged(new GroupChangedEventArgs(message.MessageType, message));
+
+    //            break;
+
+    //        default:
+
+    //            await OnMessage(message);
+
+    //            break;
+    //    }
+    //}
+
     public override async Task Edited(MessageResult message)
     {
         await OnMessageEdit(message);

TelegramBotBase/Form/PromptDialog.cs

@@ -82,7 +82,7 @@ public class PromptDialog : ModalDialog
             {
                 var bf = new ButtonForm();
                 bf.AddButtonRow(new ButtonBase(BackLabel, "back"));
-                await Device.Send(Message, (ReplyMarkupBase)bf);
+                await Device.Send(Message, (IReplyMarkup)bf);
                 return;
             }
 

TelegramBotBase/Interfaces/IDeviceSession.cs

@@ -1,10 +1,24 @@
 using System;
+using System.Threading.Tasks;
+using Telegram.Bot.Types.Enums;
+using Telegram.Bot.Types;
 using TelegramBotBase.Form;
+using Telegram.Bot.Types.ReplyMarkups;
+using TelegramBotBase.Args;
+using TelegramBotBase.Base;
+using Telegram.Bot;
+using TelegramBotBase.Sessions;
 
 namespace TelegramBotBase.Interfaces;
 
-internal interface IDeviceSession
+public interface IDeviceSession : IDeviceSessionMethods
 {
+    MessageClient Client => ActiveForm.Client;
+
+    int LastMessageId => LastMessage?.MessageId ?? -1;
+
+    Message LastMessage { get; set; }
+
     /// <summary>
     ///     Device or chat id
     /// </summary>
@@ -35,4 +49,6 @@ internal interface IDeviceSession
     ///     contains if the form has been switched (navigated)
     /// </summary>
     bool FormSwitched { get; set; }
+
+
 }

TelegramBotBase/Interfaces/IDeviceSessionMethods.cs

@@ -0,0 +1,117 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Threading.Tasks;
+using Telegram.Bot.Types.Enums;
+using Telegram.Bot.Types.ReplyMarkups;
+using Telegram.Bot.Types;
+using TelegramBotBase.Form;
+using Telegram.Bot;
+using TelegramBotBase.Base;
+using TelegramBotBase.Args;
+
+namespace TelegramBotBase.Interfaces
+{
+    public interface IDeviceSessionMethods
+    {
+
+        string GetChatTitle();
+
+        Task BanUser(long userId, DateTime until = default);
+
+        Task UnbanUser(long userId);
+
+        Task ChangeChatPermissions(ChatPermissions permissions);
+
+        Task RestrictUser(long userId, ChatPermissions permissions, bool? useIndependentGroupPermission = null, DateTime until = default);
+
+        Task ConfirmAction(string callbackQueryId, string message = "", bool showAlert = false,
+                                    string urlToOpen = null);
+
+        Task<bool> DeleteMessage(int messageId = -1);
+
+        Task<bool> DeleteMessage(Message message);
+
+        Task<Message> HideReplyKeyboard(string closedMsg = "Closed", bool autoDeleteResponse = true);
+
+        Task<Message> Send(string text, ButtonForm buttons = null, int replyTo = 0,
+                                        bool disableNotification = false, ParseMode parseMode = ParseMode.Markdown,
+                                        bool markdownV2AutoEscape = true);
+
+        Task<Message> Send(string text, IReplyMarkup markup, int replyTo = 0,
+                                        bool disableNotification = false, ParseMode parseMode = ParseMode.Markdown,
+                                        bool markdownV2AutoEscape = true);
+
+        Task<Message> Send(string text, InlineKeyboardMarkup markup, int replyTo = 0,
+                                    bool disableNotification = false, ParseMode parseMode = ParseMode.Markdown,
+                                    bool markdownV2AutoEscape = true);
+
+        Task SetAction(ChatAction action);
+
+        Task<Message> SendTextFile(string filename, string textcontent, Encoding encoding = null,
+                                            string caption = "", ButtonForm buttons = null, int replyTo = 0,
+                                            bool disableNotification = false);
+
+        Task<Message> SendDocument(InputFile document, string caption = "",
+                                            ButtonForm buttons = null, int replyTo = 0,
+                                            bool disableNotification = false);
+
+
+        Task<Message> SendPhoto(InputFile file, string caption = null, ButtonForm buttons = null,
+                                         int replyTo = 0, bool disableNotification = false,
+                                         ParseMode parseMode = ParseMode.Markdown);
+
+        Task<Message> SendVideo(InputFile file, string caption = null, ButtonForm buttons = null,
+                                         int replyTo = 0, bool disableNotification = false,
+                                         ParseMode parseMode = ParseMode.Markdown);
+
+
+        Task<Message> SendVideo(string url, ButtonForm buttons = null, int replyTo = 0,
+                                         bool disableNotification = false, ParseMode parseMode = ParseMode.Markdown);
+
+        Task<Message> SendVideo(string filename, byte[] video, ButtonForm buttons = null, int replyTo = 0,
+                                         bool disableNotification = false, ParseMode parseMode = ParseMode.Markdown);
+
+        Task<Message> SendLocalVideo(string filepath, ButtonForm buttons = null, int replyTo = 0,
+                                              bool disableNotification = false,
+                                              ParseMode parseMode = ParseMode.Markdown);
+
+        Task<Message> Edit(int messageId, string text, ButtonForm buttons = null,
+                                    ParseMode parseMode = ParseMode.Markdown);
+
+
+
+        Task<Message> Edit(int messageId, string text, InlineKeyboardMarkup markup,
+                                    ParseMode parseMode = ParseMode.Markdown);
+
+        Task<Message> Edit(Message message, ButtonForm buttons = null,
+                                    ParseMode parseMode = ParseMode.Markdown);
+
+        Task<Message> EditReplyMarkup(int messageId, ButtonForm bf);
+
+        Task<Message> RequestContact(string buttonText = "Send your contact",
+                                              string requestMessage = "Give me your phone number!",
+                                              bool oneTimeOnly = true);
+
+        Task<Message> RequestLocation(string buttonText = "Send your location",
+                                               string requestMessage = "Give me your location!",
+                                               bool oneTimeOnly = true);
+
+
+        Task<ChatMember> GetChatUser(long userId);
+
+
+        event Async.AsyncEventHandler<MessageSentEventArgs> MessageSent;
+
+        event EventHandler<MessageReceivedEventArgs> MessageReceived;
+
+        event EventHandler<MessageDeletedEventArgs> MessageDeleted;
+
+        Task Api(Func<ITelegramBotClient, Task> call);
+
+        Task<T> Api<T>(Func<ITelegramBotClient, Task<T>> call);
+
+        T Raw<T>(Func<ITelegramBotClient, T> call);
+
+    }
+}

TelegramBotBase/Interfaces/IMessageLoopFactory.cs

@@ -2,13 +2,12 @@
 using System.Threading.Tasks;
 using TelegramBotBase.Args;
 using TelegramBotBase.Base;
-using TelegramBotBase.Sessions;
 
 namespace TelegramBotBase.Interfaces;
 
 public interface IMessageLoopFactory
 {
-    Task MessageLoop(BotBase bot, DeviceSession session, UpdateResult ur, MessageResult e);
+    Task MessageLoop(BotBase bot, IDeviceSession session, UpdateResult ur, MessageResult e);
 
     event EventHandler<UnhandledCallEventArgs> UnhandledCall;
 }

TelegramBotBase/MessageLoops/FormBaseMessageLoop.cs

@@ -5,7 +5,6 @@ using Telegram.Bot.Types.Enums;
 using TelegramBotBase.Args;
 using TelegramBotBase.Base;
 using TelegramBotBase.Interfaces;
-using TelegramBotBase.Sessions;
 
 namespace TelegramBotBase.MessageLoops;
 
@@ -18,7 +17,7 @@ public class FormBaseMessageLoop : IMessageLoopFactory
 
     private readonly EventHandlerList _events = new();
 
-    public async Task MessageLoop(BotBase bot, DeviceSession session, UpdateResult ur, MessageResult mr)
+    public async Task MessageLoop(BotBase bot, IDeviceSession session, UpdateResult ur, MessageResult mr)
     {
         var update = ur.RawData;
 

TelegramBotBase/MessageLoops/FullMessageLoop.cs

@@ -5,7 +5,6 @@ using Telegram.Bot.Types.Enums;
 using TelegramBotBase.Args;
 using TelegramBotBase.Base;
 using TelegramBotBase.Interfaces;
-using TelegramBotBase.Sessions;
 
 namespace TelegramBotBase.MessageLoops;
 
@@ -18,7 +17,7 @@ public class FullMessageLoop : IMessageLoopFactory
 
     private readonly EventHandlerList _events = new();
 
-    public async Task MessageLoop(BotBase bot, DeviceSession session, UpdateResult ur, MessageResult mr)
+    public async Task MessageLoop(BotBase bot, IDeviceSession session, UpdateResult ur, MessageResult mr)
     {
         var update = ur.RawData;
 

TelegramBotBase/MessageLoops/MinimalMessageLoop.cs

@@ -4,7 +4,6 @@ using System.Threading.Tasks;
 using TelegramBotBase.Args;
 using TelegramBotBase.Base;
 using TelegramBotBase.Interfaces;
-using TelegramBotBase.Sessions;
 
 namespace TelegramBotBase.MessageLoops;
 
@@ -17,7 +16,7 @@ public class MinimalMessageLoop : IMessageLoopFactory
 
     private readonly EventHandlerList _events = new();
 
-    public async Task MessageLoop(BotBase bot, DeviceSession session, UpdateResult ur, MessageResult mr)
+    public async Task MessageLoop(BotBase bot, IDeviceSession session, UpdateResult ur, MessageResult mr)
     {
         var update = ur.RawData;
 

TelegramBotBase/SessionManager.cs

@@ -21,7 +21,7 @@ public class SessionManager
     public SessionManager(BotBase botBase)
     {
         BotBase = botBase;
-        SessionList = new Dictionary<long, DeviceSession>();
+        SessionList = new Dictionary<long, IDeviceSession>();
     }
 
     /// <summary>
@@ -32,7 +32,7 @@ public class SessionManager
     /// <summary>
     ///     A list of all active sessions.
     /// </summary>
-    public Dictionary<long, DeviceSession> SessionList { get; set; }
+    public Dictionary<long, IDeviceSession> SessionList { get; set; }
 
 
     /// <summary>
@@ -45,7 +45,7 @@ public class SessionManager
     /// </summary>
     /// <param name="deviceId"></param>
     /// <returns></returns>
-    public DeviceSession GetSession(long deviceId)
+    public IDeviceSession GetSession(long deviceId)
     {
         var ds = SessionList.FirstOrDefault(a => a.Key == deviceId).Value ?? null;
         return ds;
@@ -57,7 +57,7 @@ public class SessionManager
     /// <typeparam name="T"></typeparam>
     /// <param name="deviceId"></param>
     /// <returns></returns>
-    public async Task<DeviceSession> StartSession(long deviceId)
+    public async Task<IDeviceSession> StartSession(long deviceId)
     {
         var start = BotBase.StartFormFactory.CreateForm();
 
@@ -91,7 +91,7 @@ public class SessionManager
     ///     Returns all active User Sessions.
     /// </summary>
     /// <returns></returns>
-    public List<DeviceSession> GetUserSessions()
+    public List<IDeviceSession> GetUserSessions()
     {
         return SessionList.Where(a => a.Key > 0).Select(a => a.Value).ToList();
     }
@@ -100,7 +100,7 @@ public class SessionManager
     ///     Returns all active Group Sessions.
     /// </summary>
     /// <returns></returns>
-    public List<DeviceSession> GetGroupSessions()
+    public List<IDeviceSession> GetGroupSessions()
     {
         return SessionList.Where(a => a.Key < 0).Select(a => a.Value).ToList();
     }

TelegramBotBase/Sessions/DeviceSession.cs

@@ -312,7 +312,7 @@ public class DeviceSession : IDeviceSession
     /// <param name="replyTo"></param>
     /// <param name="disableNotification"></param>
     /// <returns></returns>
-    public async Task<Message> Send(string text, ReplyMarkupBase markup, int replyTo = 0,
+    public async Task<Message> Send(string text, IReplyMarkup markup, int replyTo = 0,
                                     bool disableNotification = false, ParseMode parseMode = ParseMode.Markdown,
                                     bool markdownV2AutoEscape = true)
     {

TelegramBotBase/States/Converter/DictionaryTypeConverter.cs

@@ -0,0 +1,155 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace TelegramBotBase.States.Converter
+{
+    public class DictionaryObjectJsonConverter : JsonConverter<Dictionary<string, object>>
+    {
+        public override Dictionary<string, object> Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+        {
+            var dictionary = new Dictionary<string, object>();
+            var jsonDocument = JsonDocument.ParseValue(ref reader);
+
+            foreach (var element in jsonDocument.RootElement.EnumerateObject())
+            {
+                switch (element.Value.ValueKind)
+                {
+                    case JsonValueKind.String:
+                        dictionary[element.Name] = element.Value.GetString();
+                        break;
+                    case JsonValueKind.Number:
+
+                        if (element.Value.TryGetInt32(out var number))
+                        {
+                            dictionary[element.Name] = number;
+                            continue;
+                        }
+
+                        if (element.Value.TryGetInt64(out long l))
+                            dictionary[element.Name] = l;
+                        else
+                            dictionary[element.Name] = element.Value.GetDouble();
+                        break;
+                    case JsonValueKind.True:
+                    case JsonValueKind.False:
+                        dictionary[element.Name] = element.Value.GetBoolean();
+                        break;
+                    case JsonValueKind.Object:
+                        dictionary[element.Name] = JsonSerializer.Deserialize<Dictionary<string, object>>(element.Value.GetRawText(), options);
+                        break;
+                    case JsonValueKind.Array:
+
+                        dictionary[element.Name] = HandleArray(element.Value);
+
+                        break;
+                    default:
+                        dictionary[element.Name] = element.Value.GetRawText();
+                        break;
+                }
+            }
+
+            return dictionary;
+        }
+
+
+
+        private object HandleArray(JsonElement jsonArray)
+        {
+            // Hier wird geprüft, ob alle Elemente einer bestimmten Art angehören (z. B. int, string)
+            if (jsonArray.GetArrayLength() > 0)
+            {
+                var firstElement = jsonArray[0];
+                switch (firstElement.ValueKind)
+                {
+                    case JsonValueKind.Number:
+                        // Prüfen, ob alle Elemente ganze Zahlen sind
+                        var isIntArray = true;
+                        var isLongArray = false;
+
+                        foreach (var element in jsonArray.EnumerateArray())
+                        {
+                            if (!element.TryGetInt32(out _))
+                            {
+                                isIntArray = false;
+                                isLongArray = true;
+                                if (!element.TryGetInt64(out _))
+                                {
+                                    isLongArray = false;
+                                    break;
+                                }
+                            }
+                        }
+                        if (isIntArray)
+                        {
+                            var list = new List<int>();
+                            foreach (var element in jsonArray.EnumerateArray())
+                            {
+                                list.Add(element.GetInt32());
+                            }
+                            return list;
+                        }
+                        else if (isLongArray)
+                        {
+                            var list = new List<long>();
+                            foreach (var element in jsonArray.EnumerateArray())
+                            {
+                                list.Add(element.GetInt64());
+                            }
+                            return list;
+                        }
+                        else
+                        {
+                            var list = new List<double>();
+                            foreach (var element in jsonArray.EnumerateArray())
+                            {
+                                list.Add(element.GetDouble());
+                            }
+                            return list;
+                        }
+                    case JsonValueKind.String:
+                        var stringList = new List<string>();
+                        foreach (var element in jsonArray.EnumerateArray())
+                        {
+                            stringList.Add(element.GetString());
+                        }
+                        return stringList;
+                    case JsonValueKind.True:
+                    case JsonValueKind.False:
+                        var boolList = new List<bool>();
+                        foreach (var element in jsonArray.EnumerateArray())
+                        {
+                            boolList.Add(element.GetBoolean());
+                        }
+                        return boolList;
+                    default:
+                        // Fallback: Liste von Objekten (z. B. wenn es sich um komplexe Objekte handelt)
+                        var objectList = new List<object>();
+                        foreach (var element in jsonArray.EnumerateArray())
+                        {
+                            objectList.Add(JsonSerializer.Deserialize<object>(element.GetRawText()));
+                        }
+                        return objectList;
+                }
+            }
+
+            // Leeres Array als Liste von Objekten zurückgeben
+            return new List<object>();
+        }
+
+        public override void Write(Utf8JsonWriter writer, Dictionary<string, object> value, JsonSerializerOptions options)
+        {
+            writer.WriteStartObject();
+
+            foreach (var kvp in value)
+            {
+                writer.WritePropertyName(kvp.Key);
+                JsonSerializer.Serialize(writer, kvp.Value, kvp.Value?.GetType() ?? typeof(object), options);
+            }
+
+            writer.WriteEndObject();
+        }
+    }
+}

TelegramBotBase/States/Converter/JsonTypeConverter.cs

@@ -0,0 +1,296 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Reflection;
+using System.Text;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace TelegramBotBase.States.Converter
+{
+    public class JsonTypeConverter : JsonConverter<object>
+    {
+
+        public override object Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+        {
+            using (JsonDocument doc = JsonDocument.ParseValue(ref reader))
+            {
+                return ParseElement(doc.RootElement, options, typeof(object));
+            }
+
+        }
+
+        private object ParseElement(JsonElement element, JsonSerializerOptions options, Type expected_type)
+        {
+            // Wenn das Element ein JSON-Objekt ist
+            if (element.ValueKind == JsonValueKind.Object)
+            {
+                // Wenn es einen $type enthält, dann den Typ dynamisch instanziieren
+                if (element.TryGetProperty("$type", out JsonElement typeElement))
+                {
+                    string typeName = typeElement.GetString();
+                    Type type = Type.GetType(typeName);
+
+                    if (type == null)
+                        throw new InvalidOperationException($"Typ '{typeName}' konnte nicht gefunden werden.");
+
+                    // Liste verarbeiten, falls $values enthalten ist
+                    if (element.TryGetProperty("$values", out JsonElement valuesElement))
+                    {
+                        return ParseArray(valuesElement, type);
+                    }
+                    else if (expected_type.IsGenericType && expected_type.GetGenericTypeDefinition() == typeof(Dictionary<,>))
+                    {
+                        var dictionary = new Dictionary<string, object>();
+                        foreach (var property in element.EnumerateObject())
+                        {
+                            dictionary[property.Name] = ParseElement(property.Value, options, typeof(object));
+                        }
+
+                        return dictionary;
+                    }
+                    else
+                    {
+                        var instance = type.GetConstructor(new Type[] { }).Invoke(new object[] { });
+                        var properties = type.GetProperties();
+
+                        foreach (var p in properties)
+                        {
+                            if (!element.TryGetProperty(p.Name, out JsonElement value))
+                                continue;
+
+                            switch (value.ValueKind)
+                            {
+                                case JsonValueKind.Number:
+
+                                    if (p.PropertyType == typeof(int))
+                                    {
+                                        if (value.TryGetInt32(out int i))
+                                        {
+                                            p.SetValue(instance, i);
+                                        }
+                                    }
+                                    else if (p.PropertyType == typeof(long))
+                                    {
+                                        if (value.TryGetInt64(out long l))
+                                        {
+                                            p.SetValue(instance, l);
+                                        }
+
+                                    }
+
+                                    break;
+                                case JsonValueKind.String:
+
+                                    p.SetValue(instance, value.ToString());
+
+                                    break;
+
+                                default:
+
+                                    //if (p.PropertyType.IsGenericType && p.PropertyType.GetGenericTypeDefinition() == typeof(Dictionary<,>))
+                                    //{
+                                    //    var dictionary = new Dictionary<string, object>();
+                                    //    foreach (var property in element.EnumerateObject())
+                                    //    {
+                                    //        dictionary[property.Name] = ParseElement(property.Value, options, p.PropertyType);
+                                    //    }
+
+                                    //    p.SetValue(instance, dictionary);
+                                    //}
+                                    //else
+                                    //{
+
+                                    var obj = ParseElement(value, options, p.PropertyType);
+
+                                    if (obj == null)
+                                        continue;
+
+                                    try
+                                    {
+                                        p.SetValue(instance, obj);
+                                    }
+                                    catch
+                                    {
+
+                                    }
+                                    //}
+
+
+                                    break;
+                            }
+
+
+
+                        }
+
+                        return instance;
+
+                        // Objekt dynamisch deserialisieren
+                        //return JsonSerializer.Deserialize(element.GetRawText(), type, options);
+                    }
+                }
+                else
+                {
+                    // Falls kein $type vorhanden ist, als Dictionary verarbeiten
+                    var dictionary = new Dictionary<string, object>();
+                    foreach (var property in element.EnumerateObject())
+                    {
+                        dictionary[property.Name] = ParseElement(property.Value, options, typeof(object));
+                    }
+                    return dictionary;
+                }
+            }
+            // Wenn das Element ein Array ist
+            else if (element.ValueKind == JsonValueKind.Array)
+            {
+                return ParseArray(element, typeof(object));
+            }
+            // Primitive Typen (String, Number, Bool)
+            else if (element.ValueKind == JsonValueKind.Number)
+            {
+
+                if (expected_type == typeof(Int64))
+                {
+                    if (element.TryGetInt64(out long l))
+                        return l;
+                }
+                else if (expected_type == typeof(Int32))
+                {
+                    if (element.TryGetInt32(out int i))
+                        return i;
+                }
+
+                if (element.TryGetInt32(out int i2))
+                    return i2;
+
+                return 0;
+            }
+            else if (element.ValueKind == JsonValueKind.String)
+            {
+                return element.ToString();
+            }
+            else
+            {
+
+#if NETCOREAPP3_1
+                return JsonSerializer.Deserialize(element.ToString(), typeof(object), options);
+#else
+                return element.Deserialize<object>(options);
+#endif
+
+            }
+        }
+
+        private object ParseElement(JsonElement element)
+        {
+
+            return null;
+        }
+
+        private object ParseArray(JsonElement arrayElement, Type listType)
+        {
+            // Wenn der Typ eine generische Liste ist
+            if (listType.IsGenericType && listType.GetGenericTypeDefinition() == typeof(List<>))
+            {
+                Type elementType = listType.GetGenericArguments()[0];
+                var list = (IList)Activator.CreateInstance(typeof(List<>).MakeGenericType(elementType));
+                foreach (var item in arrayElement.EnumerateArray())
+                {
+                    list.Add(ParseElement(item, new JsonSerializerOptions(), elementType));
+                }
+                return list;
+            }
+            else
+            {
+                // Standardmäßig als List<object>
+                var list = new List<object>();
+                foreach (var item in arrayElement.EnumerateArray())
+                {
+                    list.Add(ParseElement(item, new JsonSerializerOptions(), typeof(object)));
+                }
+                return list;
+            }
+        }
+
+        public override void Write(Utf8JsonWriter writer, object value, JsonSerializerOptions options)
+        {
+            WriteWithTypeInfo(writer, value, options);
+
+        }
+
+        private void WriteWithTypeInfo(Utf8JsonWriter writer, object value, JsonSerializerOptions options)
+        {
+            if (value == null)
+            {
+                writer.WriteNullValue();
+                return;
+            }
+
+            Type type = value.GetType();
+
+            // Primitives und grundlegende Typen (int, string, bool, etc.)
+            if (type.IsPrimitive || type == typeof(string) || type == typeof(decimal))
+            {
+                JsonSerializer.Serialize(writer, value, type, options);
+            }
+            // Behandlung für Sammlungen
+            else if (value is IList list)
+            {
+                writer.WriteStartObject();
+                writer.WriteString("$type", type.AssemblyQualifiedName);
+                writer.WritePropertyName("$values");
+                writer.WriteStartArray();
+
+                foreach (var item in list)
+                {
+                    WriteWithTypeInfo(writer, item, options);
+                }
+
+                writer.WriteEndArray();
+                writer.WriteEndObject();
+            }
+            // Behandlung für Dictionaries
+            else if (value is IDictionary dictionary)
+            {
+                writer.WriteStartObject();
+                writer.WriteString("$type", type.AssemblyQualifiedName);
+
+                foreach (DictionaryEntry entry in dictionary)
+                {
+                    writer.WritePropertyName(entry.Key.ToString());
+                    WriteWithTypeInfo(writer, entry.Value, options);
+                }
+
+                writer.WriteEndObject();
+            }
+            // Komplexe Objekte
+            else if (value is Enum e)
+            {
+
+                int eValue = (int)value;
+
+                writer.WriteNumberValue(eValue);
+
+            }
+            else
+            {
+                writer.WriteStartObject();
+                writer.WriteString("$type", type.AssemblyQualifiedName);
+
+                foreach (var property in type.GetProperties())
+                {
+                    if (property.CanRead)
+                    {
+                        var propValue = property.GetValue(value);
+                        writer.WritePropertyName(property.Name);
+                        WriteWithTypeInfo(writer, propValue, options);
+                    }
+                }
+
+                writer.WriteEndObject();
+            }
+        }
+    }
+}

TelegramBotBase/States/JSONStateMachine.cs

@@ -1,6 +1,6 @@
 using System;
 using System.IO;
-using Newtonsoft.Json;
+using System.Text.Json;
 using TelegramBotBase.Args;
 using TelegramBotBase.Base;
 using TelegramBotBase.Form;
@@ -48,16 +48,24 @@ public class JsonStateMachine : IStateMachine
         {
             var content = File.ReadAllText(FilePath);
 
-            var sc = JsonConvert.DeserializeObject<StateContainer>(content, new JsonSerializerSettings
+            var options = new JsonSerializerOptions
             {
-                TypeNameHandling = TypeNameHandling.All,
-                TypeNameAssemblyFormatHandling = TypeNameAssemblyFormatHandling.Simple
-            });
+                Converters = {
+                    new Converter.JsonTypeConverter(),
+                    //new Converter.DictionaryObjectJsonConverter(),
+                    
+                },
+                PropertyNameCaseInsensitive = true
+            };
+
+            var obj = JsonSerializer.Deserialize<object>(content, options) ;
+            var sc = obj as StateContainer;
 
             return sc;
         }
-        catch
+        catch(Exception ex)
         {
+            throw ex;
         }
 
         return new StateContainer();
@@ -77,16 +85,23 @@ public class JsonStateMachine : IStateMachine
 
         try
         {
-            var content = JsonConvert.SerializeObject(e.States, Formatting.Indented, new JsonSerializerSettings
+            var options = new JsonSerializerOptions
             {
-                TypeNameHandling = TypeNameHandling.All,
-                TypeNameAssemblyFormatHandling = TypeNameAssemblyFormatHandling.Simple
-            });
+                WriteIndented = true,
+                Converters = {
+                    new Converter.JsonTypeConverter(),
+                },
+                 PropertyNameCaseInsensitive = true
+            };
+
+            var content = JsonSerializer.Serialize<object>(e.States, options);
 
             File.WriteAllText(FilePath, content);
         }
         catch
         {
+
+
         }
     }
 }

TelegramBotBase/States/SimpleJSONStateMachine.cs

@@ -1,6 +1,6 @@
 using System;
 using System.IO;
-using Newtonsoft.Json;
+using System.Text.Json;
 using TelegramBotBase.Args;
 using TelegramBotBase.Base;
 using TelegramBotBase.Form;
@@ -49,7 +49,15 @@ public class SimpleJsonStateMachine : IStateMachine
         {
             var content = File.ReadAllText(FilePath);
 
-            var sc = JsonConvert.DeserializeObject<StateContainer>(content);
+            var options = new JsonSerializerOptions
+            {
+                Converters = {
+                    new Converter.DictionaryObjectJsonConverter(),
+                    new Converter.JsonTypeConverter()
+                }
+            };
+
+            var sc = JsonSerializer.Deserialize<StateContainer>(content, options);
 
             return sc;
         }
@@ -74,7 +82,16 @@ public class SimpleJsonStateMachine : IStateMachine
 
         try
         {
-            var content = JsonConvert.SerializeObject(e.States, Formatting.Indented);
+            var options = new JsonSerializerOptions
+            {
+                WriteIndented = true,
+                Converters = {
+                    new Converter.DictionaryObjectJsonConverter(),
+                    new Converter.JsonTypeConverter()
+                }
+            };
+
+            var content = JsonSerializer.Serialize(e.States, options);
 
             File.WriteAllText(FilePath, content);
         }

TelegramBotBase/TelegramBotBase.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFrameworks>netstandard2.0;netcoreapp3.1;net6;net7</TargetFrameworks>
+        <TargetFrameworks>netcoreapp3.1;net6;net7;net8</TargetFrameworks>
         <LangVersion>10</LangVersion>
         <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
         <GeneratePackageOnBuild>False</GeneratePackageOnBuild>
@@ -22,8 +22,8 @@
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="6.0.0" />
-        <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.1.1" PrivateAssets="All" />
+        <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="8.0.0" />
+        <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" PrivateAssets="All" />
     </ItemGroup>
 
 
@@ -60,4 +60,9 @@
         <PackageReference Include="Telegram.Bot" Version="19.0.0" />
     </ItemGroup>
 
+
+    <ItemGroup>
+      <ProjectReference Include="..\TelegramBotBase.SourceGenerators\TelegramBotBase.SourceGenerators.csproj" OutputItemType="Analyzer" ReferenceOutputAssembly="false" TargetFramework="netstandard2.0" />
+    </ItemGroup>
+
 </Project>

TelegramBotFramework.sln

@@ -38,6 +38,10 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "TelegramBotBase.Extensions.
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "TelegramBotBase.Extensions.Images.IronSoftware", "TelegramBotBase.Extensions.Images.IronSoftware\TelegramBotBase.Extensions.Images.IronSoftware.csproj", "{DC521A4C-7446-46F7-845B-AAF10EDCF8C6}"
 EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "TelegramBotBase.SourceGenerators", "TelegramBotBase.SourceGenerators\TelegramBotBase.SourceGenerators.csproj", "{B78455D6-8AF2-459C-B56A-210DC89D7793}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TelegramBotBase.Extensions.Serializer.Legacy.NewtonsoftJson", "TelegramBotBase.Extensions.Serializer.Legacy.NewtonsoftJson\TelegramBotBase.Extensions.Serializer.Legacy.NewtonsoftJson.csproj", "{21C44B20-1ED8-4BE6-A629-C2EC737C06E0}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -96,6 +100,14 @@ Global
 		{DC521A4C-7446-46F7-845B-AAF10EDCF8C6}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{DC521A4C-7446-46F7-845B-AAF10EDCF8C6}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{DC521A4C-7446-46F7-845B-AAF10EDCF8C6}.Release|Any CPU.Build.0 = Release|Any CPU
+		{B78455D6-8AF2-459C-B56A-210DC89D7793}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{B78455D6-8AF2-459C-B56A-210DC89D7793}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{B78455D6-8AF2-459C-B56A-210DC89D7793}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{B78455D6-8AF2-459C-B56A-210DC89D7793}.Release|Any CPU.Build.0 = Release|Any CPU
+		{21C44B20-1ED8-4BE6-A629-C2EC737C06E0}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{21C44B20-1ED8-4BE6-A629-C2EC737C06E0}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{21C44B20-1ED8-4BE6-A629-C2EC737C06E0}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{21C44B20-1ED8-4BE6-A629-C2EC737C06E0}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -112,6 +124,7 @@ Global
 		{689B16BC-200E-4C68-BB2E-8B209070849B} = {BFA71E3F-31C0-4FC1-A320-4DCF704768C5}
 		{7C55D9FF-7DC1-41D0-809C-469EBFA20992} = {E3193182-6FDA-4FA3-AD26-A487291E7681}
 		{DC521A4C-7446-46F7-845B-AAF10EDCF8C6} = {E3193182-6FDA-4FA3-AD26-A487291E7681}
+		{21C44B20-1ED8-4BE6-A629-C2EC737C06E0} = {E3193182-6FDA-4FA3-AD26-A487291E7681}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {59CB40E1-9FA7-4867-A56F-4F418286F057}