internal void ProcessDbMessageState(DbMessageState record)
{
var eventCollector = new YamsterModelEventCollector();
ProcessDbMessageState(record, eventCollector);
eventCollector.FireEvents();
}
internal void MarkAsDeleted()
{
if (this.Deleted)
{
return;
}
var yamsterCoreDb = this.YamsterCache.AppContext.YamsterCoreDb;
yamsterCoreDb.Mapper.ExecuteNonQuery(@"
UPDATE " + yamsterCoreDb.MessageStates.TableName + @"
SET [Deleted] = 1
WHERE [MessageId] = ?",
this.messageId
);
// This is correct, but not very elegant
var newState = new DbMessageState();
newState.CopyFrom(this.dbMessageState);
newState.Deleted = true;
this.YamsterCache.ProcessDbMessageState(newState);
Debug.Assert(this.Deleted);
}
public void CopyFrom(DbMessageState source)
{
base.CopyFrom(source);
this.MessageId = source.MessageId;
this.Read = source.Read;
this.Starred = source.Starred;
this.Deleted = source.Deleted;
}
void ProcessDbMessageState(DbMessageState record, YamsterModelEventCollector eventCollector)
{
// Does the message exist yet?
var message = this.GetMessageById(record.MessageId, nullIfMissing: true);
if (message != null)
{
message.SetDbMessageState(record, eventCollector);
}
else
{
// Stash the message state and deal with it later
this.unresolvedMessageStatesById[record.MessageId] = record;
}
}
internal YamsterMessage(long messageId, YamsterCache yamsterCache)
: base(yamsterCache)
{
this.messageId = messageId;
this.dbMessage = new DbMessage()
{
MessageId = messageId,
ChangeNumber = 0
};
this.dbMessageState = new DbMessageState()
{
MessageId = messageId,
ChangeNumber = 0
};
}
internal void SetDbMessageState(DbMessageState newValue, YamsterModelEventCollector eventCollector)
{
if (newValue == null)
{
throw new ArgumentNullException("DbMessageState");
}
if (newValue.MessageId != messageId)
{
throw new ArgumentException("Cannot change ID");
}
bool oldRead = this.Read;
bool oldDeleted = this.Deleted;
if (newValue.Deleted != oldDeleted)
{
// Remove and re-add the message so it moves to the appropriate
// collection (YamsterThread.Messages or DeletedMessages).
// (Note that NotifyMessageReadChanged() assumes that the message
// is in the right collection.)
this.Thread.RemoveMessage(this, eventCollector);
this.dbMessageState = newValue;
this.Thread.AddMessage(this, eventCollector);
this.cachedPreviewText = null;
}
else
{
this.dbMessageState = newValue;
if (this.Read != oldRead && !this.Deleted)
{
this.Thread.NotifyMessageReadChanged(this.Read, eventCollector);
}
}
UpdateLoadedStatus();
eventCollector.NotifyAfterUpdate(this);
}
void WriteToDatabase(YamsterCoreDb yamsterCoreDb)
{
using (var transaction = yamsterCoreDb.BeginTransaction())
{
yamsterCoreDb.DeleteEverything(markArchiveDbInactive: true);
yamsterCoreDb.UpdateProperties(row => {
row.CurrentNetworkId = this.networkId;
});
foreach (var user in this.usersById.Values)
{
// NOTE: For now, deleted users are always included because they
// are heavily referenced
//if (this.IncludeDeletedObjects || !this.deletedUsers.Contains(user.UserId))
yamsterCoreDb.Users.InsertRecord(user);
}
foreach (var group in this.groupsById.Values)
{
if (this.IncludeDeletedObjects || !this.deletedGroups.Contains(group.GroupId))
{
yamsterCoreDb.Groups.InsertRecord(group);
DbGroupState groupState = new DbGroupState()
{
GroupId = group.GroupId
};
groupState.ShowInYamster = true;
yamsterCoreDb.GroupStates.InsertRecord(groupState);
}
}
foreach (var conversation in this.conversationsById.Values)
{
if (this.IncludeDeletedObjects || this.notDeletedConversations.Contains(conversation.ConversationId))
{
yamsterCoreDb.Conversations.InsertRecord(conversation);
}
}
foreach (var message in this.messagesById.Values)
{
bool messageIsDeleted = this.deletedMessages.Contains(message.MessageId);
if (this.IncludeDeletedObjects || !messageIsDeleted)
{
yamsterCoreDb.Messages.InsertRecord(message);
DbMessageState messageState = new DbMessageState()
{
MessageId = message.MessageId
};
messageState.Deleted = messageIsDeleted;
yamsterCoreDb.MessageStates.InsertRecord(messageState);
// Ensure that every message has a corresponding DbThreadState for its thread
DbThreadState threadState = new DbThreadState()
{
ThreadId = message.ThreadId
};
yamsterCoreDb.ThreadStates.InsertRecord(threadState, SQLiteConflictResolution.Ignore);
}
}
transaction.Commit();
}
}
void UpdateMessage(DbArchiveMessageRecord archiveMessage)
{
JsonMessage message = SQLiteJsonConverter.LoadFromJson <JsonMessage>(archiveMessage.Json);
DbMessage coreMessage = new DbMessage();
coreMessage.LastFetchedUtc = archiveMessage.LastFetchedUtc;
coreMessage.MessageId = message.Id;
coreMessage.GroupId = archiveMessage.GroupId;
coreMessage.ThreadId = message.ThreadId;
coreMessage.ConversationId = message.ConversationId;
coreMessage.CreatedDate = message.Created;
coreMessage.SenderUserId = message.SenderId;
coreMessage.MessageIdRepliedTo = message.RepliedToId ?? 0;
coreMessage.LikingUserIds.AssignFrom(message.Likes.Users.Select(x => x.UserId));
foreach (var likingUser in message.Likes.Users)
{
// We don't get a proper UserReference for liking users, but we do get
// some basic information. Write this to the Users table *only* if there
// is not already some real data there.
DbUser coreUser = new DbUser();
coreUser.LastFetchedUtc = archiveMessage.LastFetchedUtc;
coreUser.UserId = likingUser.UserId;
coreUser.FullName = likingUser.FullName ?? "";
coreUser.JobTitle = "";
coreUser.WebUrl = ""; // we could infer this from likingUser.Alias
coreUser.MugshotUrl = "";
// Ignore = only write if there isn't already an existing record
Users.InsertRecord(coreUser, SQLiteConflictResolution.Ignore);
}
coreMessage.LikesCount = message.Likes.Count;
coreMessage.NotifiedUserIds.AssignFrom(message.NotifiedUserIds ?? new long[0]);
coreMessage.Body = message.Body.Plain ?? "";
coreMessage.WebUrl = message.Permalink ?? "";
var firstImageAttachment = message.Attachments.Where(x => x.AttachmentType == "image").FirstOrDefault();
if (firstImageAttachment != null)
{
coreMessage.AttachmentFilename = firstImageAttachment.Name;
coreMessage.AttachmentWebUrl = firstImageAttachment.WebUrl;
coreMessage.AttachmentScaledUrlTemplate = firstImageAttachment.ScaledUrlTemplate;
coreMessage.AttachmentWidth = firstImageAttachment.Width ?? 0;
coreMessage.AttachmentHeight = firstImageAttachment.Height ?? 0;
}
if (!Enum.TryParse(message.MessageType, true, out coreMessage.MessageType))
{
coreMessage.MessageType = DbMessageType.Unknown;
}
Messages.InsertRecord(coreMessage, SQLiteConflictResolution.Replace);
DbMessageState messageState = new DbMessageState()
{
MessageId = archiveMessage.Id
};
MessageStates.InsertRecord(messageState, SQLiteConflictResolution.Ignore);
// Ensure that every message has a corresponding DbThreadState for its thread
DbThreadState threadState = new DbThreadState()
{
ThreadId = coreMessage.ThreadId
};
ThreadStates.InsertRecord(threadState, SQLiteConflictResolution.Ignore);
}