added connection string support and removed dependency to bot username in the configuration

Author: k0dep

Deployf.Botf/BotfOptions.cs

@@ -16,7 +16,7 @@ public string? Username
     }
 
     public string? WebhookUrl { get; set; }
-    public bool AutoSend { get; set; }
+    public bool AutoSend { get; set; } = true;
     public bool HandleOnlyMentionedInGroups { get; set; }
     public string ApiBaseUrl { get; set; }
 

Deployf.Botf/BotfProgram.cs

@@ -6,7 +6,8 @@ public static void StartBot(
         string[] args,
         bool skipHello = false,
         Action<IServiceCollection, IConfiguration>? onConfigure = null,
-        Action<IApplicationBuilder, IConfiguration>? onRun = null)
+        Action<IApplicationBuilder, IConfiguration>? onRun = null,
+        BotfOptions options = null)
     {
         if (!skipHello)
         {
@@ -22,7 +23,19 @@ public static void StartBot(
 
         var builder = WebApplication.CreateBuilder(args);
 
-        var botOptions = builder.Configuration.GetSection("bot").Get<BotfOptions>();
+        var botOptions = options;
+
+        if(botOptions == null && builder.Configuration["bot"] != null)
+        {
+            botOptions = builder.Configuration.GetSection("bot").Get<BotfOptions>();
+        }
+
+        var connectionString = builder.Configuration["botf"];
+        if (botOptions == null && connectionString != null)
+        {
+            botOptions = ConnectionString.Parse(connectionString);
+        }
+
         builder.Services.AddBotf(botOptions);
         builder.Services.AddHttpClient();
 

Deployf.Botf/ConnectionString.cs

@@ -0,0 +1,74 @@
+namespace Deployf.Botf;
+
+public class ConnectionString
+{
+    /// <summary>
+    /// token?key=value&key=value...
+    /// </summary>
+    /// <param name="value"></param>
+    /// <returns></returns>
+    /// <exception cref="ArgumentNullException"></exception>
+    /// <exception cref="Exception"></exception>
+    public static BotfOptions Parse(string value)
+    {
+        if(string.IsNullOrEmpty(value))
+        {
+            throw new ArgumentNullException("value");
+        }
+
+        var options = new BotfOptions();
+
+        var main = value.Split('?', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
+
+        if(main.Length > 0)
+        {
+            options.Token = main[0];
+        }
+        else
+        {
+            throw new ArgumentException();
+        }
+
+        if(main.Length == 1)
+        {
+            return options;
+        }
+
+        var values = main[1].Split('&', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
+        foreach (var kv in values)
+        {
+            var cortage = kv.Split('=', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
+            if(cortage == null || cortage.Length != 2)
+            {
+                throw new Exception("Botf connection string is wrong");
+            }
+
+            switch (cortage[0])
+            {
+                case "botname":
+                    options.Username = cortage[1];
+                    break;
+                case "autosend":
+                    if(bool.TryParse(cortage[1], out var autosend))
+                    {
+                        options.AutoSend = autosend;
+                    }
+                    break;
+                case "group_mode":
+                    if (bool.TryParse(cortage[1], out var groupMode))
+                    {
+                        options.HandleOnlyMentionedInGroups = groupMode;
+                    }
+                    break;
+                case "webhook":
+                    options.WebhookUrl = cortage[1];
+                    break;
+                case "api":
+                    options.ApiBaseUrl = cortage[1];
+                    break;
+            }
+        }
+
+        return options;
+    }
+}

Deployf.Botf/StartupExtensions.cs

@@ -57,8 +57,25 @@ public static IApplicationBuilder UseBotf(this IApplicationBuilder app, Action<B
         return app;
     }
 
+    public static IServiceCollection AddBotf(this IServiceCollection services, string connectionString)
+    {
+        var options = ConnectionString.Parse(connectionString);
+        services.AddBotf(options);
+        return services;
+    }
+
     public static IServiceCollection AddBotf(this IServiceCollection services, BotfOptions options)
     {
+        if(string.IsNullOrEmpty(options.Username))
+        {
+            var telegramClient = new TelegramBotClient(options.Token, baseUrl: options.ApiBaseUrl);
+            var botUser = telegramClient.GetMeAsync()
+                .ConfigureAwait(false)
+                .GetAwaiter()
+                .GetResult();
+            options.Username = botUser.Username;
+        }
+
         var routes = BotControllerFactory.MakeRoutes(RouteStateSkipFunction.SkipFunctionFactory);
 
         var states = BotControllerFactory.MakeStates();

README.md

@@ -69,7 +69,7 @@ class Program : BotfProgram
         PushL("You know.. it's very hard to recognize your command!");
         PushL("Please, write a correct text. Or use /start command");
 
-        // And finally, send buffered message
+        // And finally send buffered message
         await Send();
     }
 }
@@ -79,11 +79,7 @@ And replace content of `appsettings.json` with your bot username and token:
 
 ```
 {
-  "bot": {
-    "Token": "123456778990:YourToken",
-    "Username": "username_bot",
-    "AutoSend": true
-  }
+  "botf": "123456778990:YourToken"
 }
 ```