feat: add send video on reply

src/CasaBot/AutoScan/AutoScanApp.cs

@@ -19,7 +19,7 @@ public class AutoScanApp
     private readonly IScheduler _scheduler;
     private readonly IChainerListenerFactory _chainerListenerFactory;
     
-    public Func<AutoScanOptions, Task>? OnScanCompleted { get; set; }
+    public Func<Task>? OnScanCompleted { get; set; }
 
     public AutoScanApp(IOptions<AutoScanOptions> options, ILogger<AutoScanApp> logger, IScheduler scheduler, IChainerListenerFactory chainerListenerFactory)
     {
@@ -72,7 +72,7 @@ public class AutoScanApp
             .AddJob(downloaderJob)
             .AddJob(scannerJob)
             .AddJob(cleanJob)
-            .OnFinish(async () => await OnScanCompleted?.Invoke(_options))
+            .OnFinish(async () => await OnScanCompleted?.Invoke())
             .Build();
         
         _scheduler.ListenerManager.AddJobListener(chainer, GroupMatcher<JobKey>.GroupEquals(GROUP_NAME));
@@ -90,6 +90,24 @@ public class AutoScanApp
         await _scheduler.TriggerJob(jobKey);
     }
 
+    public string[] GetLastScanPictures()
+    {
+        if (_options.Scanner?.DetectionFolder is null)
+            return [];
+        return Directory.GetFiles(_options.Scanner.DetectionFolder , "*.jpg");
+    }
+
+    public string? GetVideoPath(string name)
+    {
+        var path = Path.Combine(_options.Scanner.DetectionFolder, name + ".avi");
+        if (!File.Exists(path))
+        {
+            _logger.LogWarning("File {Path} does not exist", path);
+            return null;
+        }
+        return path;
+    }
+    
     
     private string CronFromAt(string at)
     {

src/CasaBot/CasaBotApp/BotHandler.cs

@@ -17,6 +17,8 @@ public class BotHandler : IUpdateHandler
     private readonly List<Chat> _subscribers = [];
     private readonly Dictionary<string, BotCommand> _commands;
     
+    public Func<TextMessage, Task>? OnReply { get; set; } = null;
+
     private readonly IBotClient _bot;
 
     public BotHandler(IBotClient bot, IOptions<TelegramOptions> telegramConfiguration, ILogger<BotHandler> logger) 
@@ -114,6 +116,20 @@ public class BotHandler : IUpdateHandler
         }
     }
 
+    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)
     {
         if (_subscribers.Count == 0)
@@ -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;
         }

src/CasaBot/CasaBotApp/Extensions/CommandRegister.cs

@@ -1,5 +1,6 @@
 using AutoScan;
 using Microsoft.Extensions.Logging;
+using Telegram.Bots.Types;
 
 namespace CasaBotApp.Extensions;
 
@@ -26,19 +27,51 @@ public static class CommandRegister
                 await autoScanApp.StartNewScan();
             }
         });
+        botHandler.RegisterCommand(new BotCommand
+        {
+            Command = "/lastScan",
+            Description = "Send the images from the last scan",
+            Action = async (message, ctx) =>
+            {
+                var images = autoScanApp.GetLastScanPictures();
+                if (images.Length == 0)
+                {
+                    await ctx.Responder(message, "No images found");
+                    return;
+                }
+                await botHandler.SendPhotos(message.Chat.Id, images);
+            }
+        });
+        
+        botHandler.OnReply = async msg =>
+        {
+            var originalMsg = msg.ReplyToMessage;
+
+            // Check if the original message is a photo and has a caption
+            if (originalMsg is not PhotoMessage photoMessage || photoMessage.Caption is null)
+                return;
+            
+            var videoPath = autoScanApp.GetVideoPath(photoMessage.Caption);
+            if (string.IsNullOrEmpty(videoPath))
+                return;
+            
+            await botHandler.SendVideo(msg.Chat.Id, videoPath);
+        };
     }
     
     public static void UpdateOnScanCompleted(BotHandler botHandler, AutoScanApp autoScanApp, ILogger logger)
     {
-        autoScanApp.OnScanCompleted = async options =>
+        autoScanApp.OnScanCompleted = async () =>
         {
             logger.LogInformation("Scan completed at {At}", DateTime.Now);
             try
             {
-                //list all the images in the detection folder
-                if (options.Scanner?.DetectionFolder is null)
+                var images = autoScanApp.GetLastScanPictures();
+                if (images.Length == 0)
+                {
+                    await botHandler.Update("No images found");
                     return;
-                var images = Directory.GetFiles(options.Scanner.DetectionFolder , "*.jpg");
+                }
                 await botHandler.Update($"Scan completed, found {images.Length} images");
                 await botHandler.UpdatePhotos(images);    
             }catch(Exception ex)