async Task <ControllerModels.Messages.CreateReplyResult> CreateMergedReply(int previousMessageId, ControllerModels.Messages.CreateReplyInput input)
{
var result = new ControllerModels.Messages.CreateReplyResult {
Merged = true
};
var previousMessage = await DbContext.Messages.FirstOrDefaultAsync(m => m.Id == previousMessageId && !m.Deleted);
var newBody = $"{previousMessage.OriginalBody}\n\n{input.Body}";
var processedMessage = await ProcessMessageInput(newBody);
foreach (var error in processedMessage.Errors)
{
result.Errors.Add(error.Key, error.Value);
}
if (!(result.Errors.Any()))
{
await UpdateMessageRecord(processedMessage, previousMessage);
result.MessageId = previousMessage.Id;
result.TopicId = previousMessage.TopicId;
}
return(result);
}
public async Task <ControllerModels.Messages.CreateReplyResult> CreateReply(ControllerModels.Messages.CreateReplyInput input)
{
var result = new ControllerModels.Messages.CreateReplyResult();
var topic = await DbContext.Topics.FirstOrDefaultAsync(m => m.Id == input.TopicId);
if (topic is null || topic.Deleted)
{
result.Errors.Add(nameof(input.TopicId), $"A record does not exist with ID '{input.TopicId}'");
return(result);
}
var replyTargetMessage = await DbContext.Messages.FirstOrDefaultAsync(m => m.Id == input.Id);
var previousMessage = await DbContext.Messages.FirstOrDefaultAsync(m =>
m.Id == topic.LastMessageId &&
m.PostedById == CurrentUser.Id);
var now = DateTime.Now;
var recentReply = (now - topic.LastMessageTimePosted) < (now - now.AddSeconds(-300));
if (recentReply && !(previousMessage is null) && input.Id == previousMessage.ReplyId)
{
return(await CreateMergedReply(topic.LastMessageId, input));
}
if (result.Errors.Any())
{
return(result);
}
var processedMessage = await ProcessMessageInput(input.Body);
foreach (var error in processedMessage.Errors)
{
result.Errors.Add(error.Key, error.Value);
}
if (!result.Errors.Any())
{
var record = await CreateMessageRecord(processedMessage);
record.TopicId = topic.Id;
record.ReplyId = replyTargetMessage?.Id ?? 0;
DbContext.Update(record);
topic.ReplyCount++;
topic.LastMessageId = record.Id;
topic.LastMessagePostedById = CurrentUser.Id;
topic.LastMessageTimePosted = now;
topic.LastMessageShortPreview = record.ShortPreview;
DbContext.Update(topic);
if (!(replyTargetMessage is null) && replyTargetMessage.PostedById != CurrentUser.Id)
{
var notification = new DataModels.Notification {
MessageId = record.Id,
UserId = replyTargetMessage.PostedById,
TargetUserId = CurrentUser.Id,
Time = DateTime.Now,
Type = ENotificationType.Quote,
Unread = true,
};
DbContext.Notifications.Add(notification);
}
await DbContext.SaveChangesAsync();
UpdateTopicParticipation(topic.Id, CurrentUser.Id, DateTime.Now);
result.TopicId = record.TopicId;
result.MessageId = record.Id;
}
return(result);
}