fix: restart live recording after session deletion

src/LiveRecorder.Application/Services/RecordService.cs

@@ -276,6 +276,7 @@ public sealed class RecordService
         var deletedFilePaths = new List<string>();
         var deletedDanmakuPaths = new List<string>();
         var affectedSessionIds = new HashSet<Guid>();
+        var affectedLiveRoomIds = new HashSet<Guid>();
 
         foreach (var taskId in taskIds)
         {
@@ -310,6 +311,7 @@ public sealed class RecordService
             _recordTaskRepository.Remove(recordTask);
             deletedTaskIds.Add(recordTask.Id);
             affectedSessionIds.Add(recordTask.RecordSessionId);
+            affectedLiveRoomIds.Add(recordTask.LiveRoomId);
         }
 
         var deletedSessionIds = new List<Guid>();
@@ -357,6 +359,11 @@ public sealed class RecordService
                 cancellationToken: cancellationToken);
         }
 
+        if ((deletedTaskIds.Count > 0 || deletedSessionIds.Count > 0) && affectedLiveRoomIds.Count > 0)
+        {
+            await TryAutoRestartDeletedLiveRoomsAsync(affectedLiveRoomIds, cancellationToken);
+        }
+
         return new DeleteCompletedRecordTasksResultDto
         {
             DeletedTaskIds = deletedTaskIds,
@@ -457,6 +464,80 @@ public sealed class RecordService
         }
     }
 
+    private async Task TryAutoRestartDeletedLiveRoomsAsync(
+        IReadOnlyCollection<Guid> liveRoomIds,
+        CancellationToken cancellationToken)
+    {
+        if (liveRoomIds.Count == 0)
+        {
+            return;
+        }
+
+        var settings = await _systemSettingsService.GetAsync(cancellationToken);
+        if (!settings.AutoStartRecordingOnLive)
+        {
+            return;
+        }
+
+        var storageCheck = _storageGuardService.CheckCanStartOrResume(settings);
+        if (!storageCheck.HasEnoughSpace)
+        {
+            foreach (var liveRoomId in liveRoomIds)
+            {
+                await _systemLogService.WriteAsync(
+                    SystemLogLevel.Warning,
+                    "Storage",
+                    "Immediate auto-start after session deletion skipped because storage is below resume threshold.",
+                    storageCheck.Message,
+                    liveRoomId: liveRoomId,
+                    cancellationToken: cancellationToken);
+            }
+
+            return;
+        }
+
+        foreach (var liveRoomId in liveRoomIds)
+        {
+            var liveRoom = await _liveRoomRepository.GetByIdAsync(liveRoomId, cancellationToken);
+            if (liveRoom is null || !liveRoom.IsEnabled || liveRoom.AvailabilityStatus != LiveRoomAvailabilityStatus.Live)
+            {
+                continue;
+            }
+
+            if (await _recordSessionRepository.GetActiveByLiveRoomIdAsync(liveRoom.Id, cancellationToken) is not null)
+            {
+                continue;
+            }
+
+            try
+            {
+                await _systemLogService.WriteAsync(
+                    SystemLogLevel.Info,
+                    "RecordSession",
+                    "Live room is still online after session deletion. Attempting immediate auto-start.",
+                    liveRoomId: liveRoom.Id,
+                    cancellationToken: cancellationToken);
+
+                await StartAsync(
+                    new StartRecordTaskRequest
+                    {
+                        LiveRoomId = liveRoom.Id
+                    },
+                    cancellationToken);
+            }
+            catch (Exception ex)
+            {
+                await _systemLogService.WriteAsync(
+                    SystemLogLevel.Warning,
+                    "RecordSession",
+                    "Immediate auto-start after session deletion did not start a recording session.",
+                    ex.ToString(),
+                    liveRoomId: liveRoom.Id,
+                    cancellationToken: cancellationToken);
+            }
+        }
+    }
+
     internal static DeleteCompletedRecordTasksResultDto CreateEmptyDeleteResult() => new()
     {
         DeletedTaskIds = [],