feat: add OnReply & SendVideo & SendImages

src/CasaBot/CasaBotApp/BotHandler.cs

@@ -16,6 +16,8 @@ public class BotHandler : IUpdateHandler
     private readonly TelegramOptions _telegramOptions;
     private readonly List<Chat> _subscribers = [];
     private readonly Dictionary<string, BotCommand> _commands;
+    
+    public Func<TextMessage, Task>? OnReply { get; set; } = null;
 
     private readonly IBotClient _bot;
 
@@ -113,6 +115,20 @@ public class BotHandler : IUpdateHandler
             await SndPhoto(subscriber, stream);
         }
     }
+
+    public async Task SendVideo(long chatId, string path)
+    {
+        _logger.LogInformation("Sending video to {ChatId}", chatId);
+        await using var stream = File.OpenRead(path);
+        var send = new SendVideoFile(chatId.ToString(), stream);
+        var response = await _bot.HandleAsync(send);
+        if (!response.Ok)
+        {
+            _logger.LogError("Error sending video.");
+        }
+        _logger.LogInformation("Video sent to {ChatId}", chatId);
+        stream.Close();
+    }
     
     public async Task UpdatePhotos(string[] paths)
     {
@@ -133,7 +149,10 @@ public class BotHandler : IUpdateHandler
     private async Task UpdatePhotosInt(string[] paths)
     {
         var streams = paths.Select(File.OpenRead).ToList();
-        var photos = streams.Select(stream => new PhotoFile(stream)).Cast<IGroupableMedia>().ToList();
+        var photos = streams.Select(stream => new PhotoFile(stream)
+        {
+            Caption = Path.GetFileNameWithoutExtension(stream.Name)
+        }).Cast<IGroupableMedia>().ToList();
         
         var s0 = _subscribers.FirstOrDefault()?.Id.ToString();
         if(s0 is null)
@@ -180,12 +199,44 @@ public class BotHandler : IUpdateHandler
         await _bot.HandleAsync(send);
     }
 
+    /// <summary>
+    /// Send photos to a specific chat
+    /// </summary>
+    /// <param name="chatId"></param>
+    /// <param name="paths"></param>
+    public async Task SendPhotos(long chatId, string[] paths)
+    {
+        var streams = paths.Select(File.OpenRead).ToArray();
+        var photos = streams.Select(stream => new PhotoFile(stream)
+        {
+            Caption = Path.GetFileNameWithoutExtension(stream.Name)
+        }).Cast<IGroupableMedia>().ToArray();
+        
+        var request = new SendMediaGroup(chatId.ToString(), photos);
+        var response = await _bot.HandleAsync(request);
+        if (!response.Ok)
+        {
+            _logger.LogError("Error sending photos.");
+        }
+
+        foreach (var stream in streams)
+        {
+            stream.Close();
+            await stream.DisposeAsync();
+        }
+    }
+
 
 
     private async Task OnMessage(TextMessage msg)
     {
         if(!_commands.TryGetValue(msg.Text, out var command))
         {
+            if (msg.ReplyToMessage != null && OnReply is not null)
+            {
+                await OnReply(msg);
+                return;
+            }
             await SendHelp(msg);
             return;
         }