feat: improve telegram session posts

src/GmRelay.Bot/Features/Sessions/CreateSession/CancelSessionHandler.cs

@@ -16,7 +16,7 @@ public sealed record CancelSessionCommand(
     int MessageId);
 
 // DTOs for AOT compilation
-internal sealed record CancelSessionInfoDto(string Title, Guid BatchId, bool CanManage, string NotificationMode);
+internal sealed record CancelSessionInfoDto(string Title, Guid BatchId, int? BatchMessageId, bool CanManage, string NotificationMode);
 
 public sealed class CancelSessionHandler(
     NpgsqlDataSource dataSource,
@@ -34,6 +34,7 @@ public sealed class CancelSessionHandler(
             """
             SELECT s.title AS Title,
                    s.batch_id AS BatchId,
+                   s.batch_message_id AS BatchMessageId,
                    s.notification_mode AS NotificationMode,
                    EXISTS (
                        SELECT 1
@@ -107,7 +108,7 @@ public sealed class CancelSessionHandler(
         {
             await bot.EditMessageText(
                 chatId: command.ChatId,
-                messageId: command.MessageId,
+                messageId: session.BatchMessageId ?? command.MessageId,
                 text: renderResult.Text,
                 parseMode: Telegram.Bot.Types.Enums.ParseMode.Html,
                 replyMarkup: renderResult.Markup, 

src/GmRelay.Bot/Features/Sessions/CreateSession/CreateSessionHandler.cs

@@ -16,7 +16,7 @@ public sealed class CreateSessionHandler(
 {
     public async Task HandleAsync(Message message, CancellationToken cancellationToken)
     {
-        var parseResult = NewSessionCommandParser.Parse(message.Text, DateTimeOffset.UtcNow);
+        var parseResult = NewSessionCommandParser.Parse(message.Text ?? message.Caption, DateTimeOffset.UtcNow);
 
         foreach (var timeInput in parseResult.PastTimeInputs)
         {
@@ -54,13 +54,14 @@ public sealed class CreateSessionHandler(
         {
             await botClient.SendMessage(
                 chatId: message.Chat.Id,
-                text: "❌ Не удалось распознать формат. Пожалуйста, используйте шаблон:\n\n/newsession\nНазвание: My Game\nВремя: 15.05.2026 19:30\nВремя: 22.05.2026 19:30\nМест: 4\nСсылка: https://link\n\nДля повтора можно указать одну дату и строки:\nИгр: 4\nИнтервал: 7",
+                text: "❌ Не удалось распознать формат. Пожалуйста, используйте шаблон:\n\n/newsession\nНазвание: My Game\nВремя: 15.05.2026 19:30\nВремя: 22.05.2026 19:30\nМест: 4\nСсылка: https://link\nКартинка: https://cover\n\nДля повтора можно указать одну дату и строки:\nИгр: 4\nИнтервал: 7",
                 cancellationToken: cancellationToken);
             return;
         }
 
         var title = parseResult.Title!;
         var link = parseResult.Link!;
+        var imageReference = GetBatchImageReference(message, parseResult.ImageUrl);
         var gmId = message.From!.Id;
         var gmName = message.From.FirstName + (string.IsNullOrEmpty(message.From.LastName) ? string.Empty : $" {message.From.LastName}");
         var gmUsername = message.From.Username;
@@ -184,6 +185,24 @@ public sealed class CreateSessionHandler(
 
             var renderResult = SessionBatchRenderer.Render(title, sessions, Array.Empty<ParticipantBatchDto>());
 
+            if (imageReference is not null)
+            {
+                try
+                {
+                    await botClient.SendPhoto(
+                        chatId: chatId,
+                        messageThreadId: messageThreadId,
+                        photo: InputFile.FromString(imageReference),
+                        caption: $"🎲 {System.Net.WebUtility.HtmlEncode(title)}",
+                        parseMode: Telegram.Bot.Types.Enums.ParseMode.Html,
+                        cancellationToken: cancellationToken);
+                }
+                catch (Exception ex)
+                {
+                    logger.LogWarning(ex, "Не удалось отправить картинку для батча {BatchId}", batchId);
+                }
+            }
+
             var batchMessage = await botClient.SendMessage(
                 chatId: chatId,
                 messageThreadId: messageThreadId,
@@ -215,4 +234,20 @@ public sealed class CreateSessionHandler(
             await botClient.SendMessage(chatId, "💥 Произошла ошибка базы данных при создании сессии.", cancellationToken: cancellationToken);
         }
     }
+
+    internal static string? GetBatchImageReference(Message message, string? parsedImageUrl)
+    {
+        var attachedPhotoFileId = message.Photo?
+            .OrderByDescending(photo => photo.FileSize ?? 0)
+            .ThenByDescending(photo => photo.Width * photo.Height)
+            .FirstOrDefault()
+            ?.FileId;
+
+        if (!string.IsNullOrWhiteSpace(attachedPhotoFileId))
+        {
+            return attachedPhotoFileId;
+        }
+
+        return string.IsNullOrWhiteSpace(parsedImageUrl) ? null : parsedImageUrl.Trim();
+    }
 }

src/GmRelay.Bot/Features/Sessions/CreateSession/NewSessionCommandParser.cs

@@ -5,6 +5,7 @@ namespace GmRelay.Bot.Features.Sessions.CreateSession;
 internal sealed record NewSessionParseResult(
     string? Title,
     string? Link,
+    string? ImageUrl,
     int? MaxPlayers,
     IReadOnlyList<DateTimeOffset> ScheduledTimes,
     IReadOnlyList<string> PastTimeInputs,
@@ -27,6 +28,12 @@ internal static class NewSessionCommandParser
     private const string TitlePrefix = "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435:";
     private const string TimePrefix = "\u0412\u0440\u0435\u043c\u044f:";
     private const string LinkPrefix = "\u0421\u0441\u044b\u043b\u043a\u0430:";
+    private static readonly string[] ImagePrefixes =
+    [
+        "\u041a\u0430\u0440\u0442\u0438\u043d\u043a\u0430:",
+        "\u0418\u0437\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u0435:",
+        "\u041e\u0431\u043b\u043e\u0436\u043a\u0430:"
+    ];
     private static readonly string[] SeatLimitPrefixes =
     [
         "\u041c\u0435\u0441\u0442:",
@@ -49,6 +56,7 @@ internal static class NewSessionCommandParser
     {
         string? title = null;
         string? link = null;
+        string? imageUrl = null;
         int? maxPlayers = null;
         int? recurringCount = null;
         var recurringIntervalDays = 7;
@@ -72,6 +80,14 @@ internal static class NewSessionCommandParser
                 continue;
             }
 
+            var imagePrefix = ImagePrefixes.FirstOrDefault(prefix =>
+                line.StartsWith(prefix, StringComparison.OrdinalIgnoreCase));
+            if (imagePrefix is not null)
+            {
+                imageUrl = line[imagePrefix.Length..].Trim();
+                continue;
+            }
+
             var seatLimitPrefix = SeatLimitPrefixes.FirstOrDefault(prefix =>
                 line.StartsWith(prefix, StringComparison.OrdinalIgnoreCase));
             if (seatLimitPrefix is not null)
@@ -157,6 +173,7 @@ internal static class NewSessionCommandParser
         return new NewSessionParseResult(
             title,
             link,
+            imageUrl,
             maxPlayers,
             scheduledTimes,
             pastTimeInputs,

src/GmRelay.Bot/Features/Sessions/CreateSession/PromoteWaitlistedPlayerHandler.cs

@@ -13,7 +13,7 @@ public sealed record PromoteWaitlistedPlayerCommand(
     long ChatId,
     int MessageId);
 
-internal sealed record PromoteWaitlistSessionDto(string Title, Guid BatchId, bool CanManage, int? MaxPlayers);
+internal sealed record PromoteWaitlistSessionDto(string Title, Guid BatchId, int? BatchMessageId, bool CanManage, int? MaxPlayers);
 internal sealed record WaitlistedParticipantDto(Guid ParticipantRowId, string DisplayName);
 
 public sealed class PromoteWaitlistedPlayerHandler(
@@ -33,6 +33,7 @@ public sealed class PromoteWaitlistedPlayerHandler(
                 """
                 SELECT s.title AS Title,
                        s.batch_id AS BatchId,
+                       s.batch_message_id AS BatchMessageId,
                        s.max_players AS MaxPlayers,
                        EXISTS (
                            SELECT 1
@@ -165,7 +166,7 @@ public sealed class PromoteWaitlistedPlayerHandler(
 
             await bot.EditMessageText(
                 chatId: command.ChatId,
-                messageId: command.MessageId,
+                messageId: session.BatchMessageId ?? command.MessageId,
                 text: renderResult.Text,
                 parseMode: Telegram.Bot.Types.Enums.ParseMode.Html,
                 replyMarkup: renderResult.Markup,