feat: add DI form factory

TelegramBotBase/Builder/BotBaseBuilder.cs

@@ -7,6 +7,7 @@ using Telegram.Bot.Types;
 using TelegramBotBase.Base;
 using TelegramBotBase.Builder.Interfaces;
 using TelegramBotBase.Commands;
+using TelegramBotBase.Factories;
 using TelegramBotBase.Form;
 using TelegramBotBase.Interfaces;
 using TelegramBotBase.Localizations;
@@ -148,7 +149,7 @@ namespace TelegramBotBase.Builder
         #endregion
 
 
-        #region "Step 3 (Start Form/Factory)" 
+        #region "Step 3 (Start Form/Factory)"
 
         public INetworkingSelectionStage WithStartForm(Type startFormClass)
         {
@@ -163,6 +164,19 @@ namespace TelegramBotBase.Builder
             return this;
         }
 
+        public INetworkingSelectionStage WithServiceProvider(Type startFormClass, IServiceProvider serviceProvider)
+        {
+            this._factory = new ServiceProviderStartFormFactory(startFormClass, serviceProvider);
+            return this;
+        }
+
+        public INetworkingSelectionStage WithServiceProvider<T>(IServiceProvider serviceProvider)
+            where T : FormBase
+        {
+            this._factory = new ServiceProviderStartFormFactory<T>(serviceProvider);
+            return this;
+        }
+
         public INetworkingSelectionStage WithStartFormFactory(IStartFormFactory factory)
         {
             this._factory = factory;

TelegramBotBase/Builder/Interfaces/IStartFormSelectionStage.cs

@@ -23,6 +23,22 @@ namespace TelegramBotBase.Builder.Interfaces
         /// <returns></returns>
         INetworkingSelectionStage WithStartForm<T>() where T : FormBase, new();
 
+        /// <summary>
+        /// Chooses a StartFormFactory which will be use for new sessions.
+        /// </summary>
+        /// <param name="startFormClass"></param>
+        /// <param name="serviceProvider"></param>
+        /// <returns></returns>
+        INetworkingSelectionStage WithServiceProvider(Type startFormClass, IServiceProvider serviceProvider);
+
+        /// <summary>
+        /// Chooses a StartFormFactory which will be use for new sessions.
+        /// </summary>
+        /// <param name="serviceProvider"></param>
+        /// <typeparam name="T"></typeparam>
+        /// <returns></returns>
+        INetworkingSelectionStage WithServiceProvider<T>(IServiceProvider serviceProvider) where T : FormBase;
+
         /// <summary>
         /// Chooses a StartFormFactory which will be use for new sessions.
         /// </summary>

TelegramBotBase/Factories/ServiceProviderStartFormFactory.cs

@@ -0,0 +1,35 @@
+using System;
+using Microsoft.Extensions.DependencyInjection;
+using TelegramBotBase.Form;
+using TelegramBotBase.Interfaces;
+
+namespace TelegramBotBase.Factories
+{
+    public class ServiceProviderStartFormFactory : IStartFormFactory
+    {
+        private readonly Type _startFormClass;
+        private readonly IServiceProvider _serviceProvider;
+
+        public ServiceProviderStartFormFactory(Type startFormClass, IServiceProvider serviceProvider)
+        {
+            if (!typeof(FormBase).IsAssignableFrom(startFormClass))
+                throw new ArgumentException("startFormClass argument must be a FormBase type");
+
+            _startFormClass = startFormClass;
+            _serviceProvider = serviceProvider;
+        }
+
+        public FormBase CreateForm()
+        {
+            return (FormBase)ActivatorUtilities.CreateInstance(_serviceProvider, _startFormClass);
+        }
+    }
+
+    public class ServiceProviderStartFormFactory<T> : ServiceProviderStartFormFactory
+        where T : FormBase
+    {
+        public ServiceProviderStartFormFactory(IServiceProvider serviceProvider) : base(typeof(T), serviceProvider)
+        {
+        }
+    }
+}

TelegramBotBase/TelegramBotBase.csproj

@@ -23,6 +23,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="6.0.0" />
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.1.1" PrivateAssets="All" />
   </ItemGroup>