This commit starts from a simple observation: cooking messages on the hot path can be slow. Especially with a lot of mentions.
To move cooking from the hot path, this commit has made the following changes:
- updating cooked, inserting mentions and notifying user of new mentions has been moved inside the `process_message` job. It happens right after the `Chat::MessageProcessor` run, which is where the cooking happens.
- the similar existing code in `rebake!` has also been moved to rely on the `process_message`job only
- refactored `create_mentions` and `update_mentions` into one single `upsert_mentions` which can be called invariably
- allows services to decide if their job is ran inline or later. It avoids to need to know you have to use `Jobs.run_immediately!` in this case, in tests it will be inline per default
- made various frontend changes to make the chat-channel component lifecycle clearer. we had to handle `did-update @channel` which was super awkward and creating bugs with listeners which the changes of the PR made clear in failing specs
- adds a new `-processed` (and `-not-processed`) class on the chat message, this is made to have a good lifecyle hook in system specs
We were incorrectly generating URLs with message id even when it was not provided, resulting in a route ending with "undefined", which was causing an error.
This commit also uses this opportunity to:
- move `invite_users` into a proper controller inside the API namespace
- refactors the code into a service: `Chat::InviteUsersToChannel`
This change allows users to edit their chat messages based on the criteria added to Site Settings.
If the grace period conditions are met then there will be no (edited) text applied to the message.
The following site settings are added to chat:
chat editing grace period (seconds since message created)
chat editing grace period max diff for low trust levels (number of characters changed)
chat editing grace period max diff for high trust levels (number of characters changed)
This would cause an error when deleting the original message of a thread, due to the non existing `last_message`. This fix is implemented using the null pattern.
Note this commit is also using this opportunity to unify naming of null objects, `Chat::DeletedUser` becomes `Chat::NullUser`, it feels better to have a name describing what is the object, instead of a name describing why this object has to be used, which can change depending on cases.
While very fast and powerful staged threads forces a lot of gymnastic and edge cases. This patch adds a new service `Chat::CreateThread` and uses it to create a thread unconditionally when a user replies to a message in a threading enabled channel. If the user actually doesn’t send a message we will have a thread with no messages which has no important impact and could even be periodically cleaned if necessary.
Note that this commit also moves message actions to .gjs as it was the original goal of this PR to correctly check for staged thread to show the menu or not.
Currently, the logic for creating a new chat message is scattered
between a controller and an “old” service.
This patch address this issue by creating a new service (using the “new”
sevice object system) encapsulating all the necessary logic.
(authorization, publishing events, etc.)
This is extracted from #22390.
This patch aims to ease the transition to the new message creation
service. (in progress in #22390) Indeed, the new service patch is
breaking some specs from `discourse-ai` and `discourse-templates`
because these plugins are using either `Chat::MessageCreator` or the
`chat_message` fabricator.
This patch addresses theses issues by normalizing how we create a chat
message in specs. To do so, the preferred way is to use
`Fabricate(:chat_message)` with a new `:use_service` option allowing to
call the service under the hood. While this patch will obviously call
`Chat::MessageCreator`, the new service patch will now be able to simply
change the call to `Chat::CreateMessage` without breaking any specs from
other plugins.
Another thing this patch does is to not create chat messages using the
service for specs that aren’t system ones, thus speeding the execution
time a bit in the process.
It will now replies count and participants list. Also the title will be OM excerpt or user defined title, no more default "Thread" title. Lastly, the author of the last reply is also shown as prefix of it.
The specs were relying a lot on mock and stubs. I suspect that under certain circumstances it didn't play well with fabricators and we ended up with the stub of another spec causing this kind of error:
```
1) Chat::AutoJoinChannelBatch.call when arguments are valid when channel is found when more than one membership is created publishes an event
Failure/Error: subject(:result) { described_class.call(params) }
Mocha::ExpectationError:
unexpected invocation: Chat::Publisher.publish_new_channel(#<Chat::CategoryChannel:0x39b840>, #<User::ActiveRecord_Relation:0x39b868>)
unsatisfied expectations:
- expected exactly once, invoked never: Chat::Publisher.publish_new_channel(#<Chat::CategoryChannel:0x39b890>, [#<User:0x39b8b8>, #<User:0x39b8e0>])
satisfied expectations:
- allowed any number of times, invoked once: Chat::Action::CreateMembershipsForAutoJoin.call(has_entries({:channel => #<Chat::CategoryChannel:0x39b890>, :contract => instance_of(Chat::AutoJoinChannelBatch::Contract)}))
- allowed any number of times, invoked never: Chat::ChannelMembershipManager.new(#<Chat::CategoryChannel:0x39b890>)
- allowed any number of times, invoked never: #<Mock:0x39b930>.recalculate_user_count(any_parameters)
# ./plugins/chat/app/services/chat/auto_join_channel_batch.rb:65:in `publish_new_channel'
# ./plugins/chat/app/services/service/base.rb:118:in `instance_exec'
# ./plugins/chat/app/services/service/base.rb:118:in `call'
# ./plugins/chat/app/services/service/base.rb:368:in `block in run!'
# ./plugins/chat/app/services/service/base.rb:368:in `each'
# ./plugins/chat/app/services/service/base.rb:368:in `run!'
# ./plugins/chat/app/services/service/base.rb:361:in `run'
# ./plugins/chat/app/services/service/base.rb:229:in `call'
# ./plugins/chat/spec/services/chat/auto_join_channel_batch_spec.rb:50:in `block (3 levels) in <main>'
# ./plugins/chat/spec/services/chat/auto_join_channel_batch_spec.rb:110:in `block (6 levels) in <main>'
# ./spec/rails_helper.rb:412:in `block (2 levels) in <top (required)>'
```
The spec is now simplified and shouldn't have this issue anymore.
`Jobs::AutoJoinChannelBatch` was holding a lot of logic which should be in a service. Moreover, this refactoring is the opportunity to address a bug which could cause a duplicate key error.
From now when trying to insert a new membership it won't fail if a membership is already present.
Example error:
```
Job exception: ERROR: duplicate key value violates unique constraint "user_chat_channel_unique_memberships"
DETAIL: Key (user_id, chat_channel_id)=(1, 2) already exists.
Backtrace
rack-mini-profiler-3.1.0/lib/patches/db/pg.rb:110:in `exec'
rack-mini-profiler-3.1.0/lib/patches/db/pg.rb:110:in `async_exec'
(eval):29:in `async_exec'
mini_sql-1.4.0/lib/mini_sql/postgres/connection.rb:209:in `run'
mini_sql-1.4.0/lib/mini_sql/active_record_postgres/connection.rb:38:in `block in run'
mini_sql-1.4.0/lib/mini_sql/active_record_postgres/connection.rb:34:in `block in with_lock'
activesupport-7.0.5.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in `handle_interrupt'
activesupport-7.0.5.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in `block in synchronize'
activesupport-7.0.5.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in `handle_interrupt'
activesupport-7.0.5.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in `synchronize'
mini_sql-1.4.0/lib/mini_sql/active_record_postgres/connection.rb:34:in `with_lock'
mini_sql-1.4.0/lib/mini_sql/active_record_postgres/connection.rb:38:in `run'
mini_sql-1.4.0/lib/mini_sql/postgres/connection.rb:64:in `query_single'
/var/www/discourse/plugins/chat/app/jobs/regular/chat/auto_join_channel_batch.rb:38:in `execute'
```
Note this commit is also using main branch of `shoulda-matchers` as the gem has not been released yet.
Co-authored-by: Loïc Guitaut <5648+Flink@users.noreply.github.com>
Prior to this commit we were loading a large number of thread messages without any pagination. This commit attempts to fix this and also improves the following points:
- code sharing between channels and threads:
Attempts to reuse/share the code use in channels for threads. To make it possible part of this code has been extracted in dedicated helpers or has been improved to reduce the duplication needed.
Examples of extracted helpers:
- `stackingContextFix`: the ios hack for rendering bug when momentum scrolling is interrupted
- `scrollListToMessage`, `scrollListToTop`, `scrollListToBottom`: a series of helper to correctly scroll to a specific position in the list of messages
- better general performance of listing messages:
One of the main changes which has been made is to remove the computation of visible message during scroll, it will only happen when needed (update last read for example). This constant recomputation of `message.visible` on intersection observer event while scrolling was consuming a lot of CPU time.
Someone who cannot chat is also not able to join chat channels,
so we may not check all the time user.can_chat? && user.can_join_chat_channel?
and just call user.can_join_chat_channel? instead.
This commit makes it so that when the user has unread threads
for a channel we show a blue dot in the sidebar (or channel index
for mobile/drawer).
This blue dot is slightly different from the channel unread messages:
1. It will only show if the new thread messages were created since
the user last viewed the channel
2. It will be cleared when the user views the channel, but the threads
are still considered unread because we want the user to click into
the thread list to view them
This necessitates a change to the current user serializer to also
include the unread thread overview, which is all unread threads
across all channels and their last reply date + time.
Followup to d7ef7b9c03,
this adds a spec to test the case where old threads are
still unread for the user and should show at the top regardless
of pagination, and fixes some issues/makes some slight refactors.
It could only occur on message created by the user itself and deleted while the user was looking at the channel.
It more generally fix the trash service which was not correctly setting the author of the delete.
`SiteSetting.enable_public_channels` allows site admin to decide if public channels are available at all. There's no distinction between admins or not as we expect admins to create private category channels if they want to limit usage.
Initial migration and changes to models as well as
changing the following services to update last_message_id:
* Chat::MessageCreator
* Chat::RestoreMessage
* Chat::TrashMessage
The data migration will set the `last_message_id` for all existing
threads and channels in the database.
When we query the thread list as well as the channel,
we look at the last message ID for the following:
* Channel - Sorting DM channels, and channel metadata for the list of channels
* Thread - Last reply details for thread indicators and thread list
This implementation will need more work in the future. For simplification of tracking and other events (new thread, delete/restore OM...) we used the threads from `threadsManager` which makes pagination more complicated as we already have some results when we start.
Note this commit also simplify `Collection` to only have one `load` method which can be called repeatedly.
Since we create threads in the background regardless of whether
threading is enabled for a channel, we get the unexpected behaviour
of everyone having a lot of unread threads when threading is enabled
for the channel.
To counteract this, when the admin enables threads for a channel
we can just run a high priority background job to mark all threads
as read in the channel for all users, so they are essentially
starting from a clean slate.
This commit replaces two existing screens:
- draft
- channel selection modal
Main features compared to existing solutions
- features are now combined, meaning you can for example create multi users DM
- it will show users with chat disabled
- it shows unread state
- hopefully a better look/feel
- lots of small details and fixes...
Other noticeable fixes
- starting a DM with a user, even from the user card and clicking <kbd>Chat</kbd> will not show a green dot for the target user (or even the channel) until a message is actually sent
- it should almost never do a full page reload anymore
---------
Co-authored-by: Martin Brennan <mjrbrennan@gmail.com>
Co-authored-by: Jordan Vidrine <30537603+jordanvidrine@users.noreply.github.com>
Co-authored-by: chapoi <101828855+chapoi@users.noreply.github.com>
Co-authored-by: Mark VanLandingham <markvanlan@gmail.com>
Without this fix, the following error is raised:
```
ActiveRecord::StatementInvalid:
PG::SyntaxError: ERROR: syntax error at or near ")"
LINE 4: WHERE thread_id IN ()
```
This will be used when we move the channel creation for DMs
to happen when we first send a message in a DM channel to avoid
a double-request. For now we can just have a new API endpoint
for creating this that the existing frontend code can use,
that uses the new service pattern.
This also uses the new policy pattern for services where the policy
can be defined in a class so a more dynamic reason for the policy
failing can be sent to the controller.
Co-authored-by: Loïc Guitaut <loic@discourse.org>
Enabling/Disabling threading has been possible through command line until now. This commit introduces two new UIs:
- When creating a channel, it will be available once the category has been selected
- On the settings page of a channel for admins
Whenever a user opens a channel or marks it read, we now
update the last_viewed_at datetime for that channel membership
record. This is so we will be able to show thread unread indicators
in the channel sidebar that clear independently of the main thread
unread indicators. This unread functionality will follow in another
PR.
* FEATURE: Sort thread list by unread threads first
This commit changes the thread list to show the threads that
have unread messages at the top of the list sorted by the
last reply date + time, then all other threads sorted by
last reply date + time.
This also fixes some issues by removing the last_reply
relationship on the thread, which did not work for complex
querying scenarios because its order would be discarded.
* FIX: Various fixes for thread list loading
* Use the channel.threadsManager and find the channel first rather
than use activeChannel in the threads manager, otherwise we may
be looking at differenct channels.
* Look at threadsManager directly instead of storing result for threads
list otherwise it can get out of sync because of replace: true in
other places we are loading threads into the store.
* Fix sorting for thread.last_reply, needed a resort.
This PR adds a new parameter to fetch chat messages: `target_date`.
It can be used to fetch messages by a specific date string. Note that it does not need to be the `created_at` date of an existing message, it can be any date. Similar to `target_message_id`, it retrieves an array of past and future messages following the query limits.
This commit adds a tracking dropdown to each individual thread, similar to topics,
that allows the user to change the notification level for a thread manually. Previously
the user had to reply to a thread to track it and see unread indicators.
Since the user can now manually track threads, the thread index has also been changed
to only show threads that the user is a member of, rather than threads that they had sent
messages in.
Unread indicators also respect the notification level -- Normal level thread tracking
will not show unread indicators in the UI when new messages are sent in the thread.
This commit adds the initial part of thread indicator improvements:
* Show the reply count, last reply date and excerpt,
and the participants of the thread's avatars and
count of additional participants
* Add a participants component for the thread that
can be reused for the list
* Add a query class to get the thread participants
* Live update the thread indicator more consistently
with the last reply and participant details
image image
In subsequent PRs we will cache the participants since
they do not change often, and improve the thread list
further with participants.
This commit also adds a showPresence boolean (default
true) to ChatUserAvatar, since we don't want to show the
online indicator for thread participants.
---------
Co-authored-by: chapoi <charlie@discourse.org>
Followup 55ef2d0698.
In the cases where the user has no last_read_message_id for
a channel, we want to make sure that a page_size is set for
the ChannelViewBuilder + MessagesQuery, otherwise we end up
loading way more messages than needed (the additional message
loading was fixed in the last commit).
Since 5cce829 and the new
channel view builder, we have no need of these obsolete
routes which have way too much logic in the controller, which
has been superseded by the view builder anyway.
Remove the routes and update the channel message loading to use it.
* Moved the settings cog from thread list to thread and
put it in a new header component
* Remove thread original message component, no longer needed
and the list item and thread indicator styles/content
will be quite different
* Start adding content (unread indicator etc.) to the thread
list item and changing structure to be more like designs
* Serialize the last thread reply when opening the thread index,
show in list and update with message bus
#### FIX: Do not use client lastReadMessageId when fetching channel messages
We had an issue where the following happened:
1. User opened channel and saw the last message, and we set the
lastReadMessageId on the server and the client
2. User navigated to another channel
3. Another user deleted the message in the original channel
4. The first user navigated back to the original channel before
the MessageBus event for the deleted message arrived, and got
a 404 error because we were sending the deleted lastReadMessageId as
target_message_id to the channel controller.
Instead of this which is a bit flaky and is hard to cover all
the issues for, instead we can pass a fetch_from_last_read boolean
param to the channels controller, and just get the user's
last_read_message_id straight from the database to use for the
target_message_id. This gets rid of any sources of race conditions
or lack of updates from MessageBus.
#### FIX: Include missing memberships for thread tracking publish
When we publish the channel/message tracking state for a
user and that message was a thread reply the publisher
was erroring because we were not telling Chat::TrackingStateReportQuery
to return missing memberships (which have zeroed out unread counts)
as well, which is what we do for the channel tracking state here.
Also just make sure that the TrackingStateReport does not error
when passed an ID it doesn't have data for.
This commit follows up b6c5a2da08
by serializing the user's thread memberships in these cases:
1. When we do the initial channel fetch with messages, we get
all threads and all the user's thread memberships for those
messages.
2. When the thread list is fetched, we get all the user's memberships
in that list.
3. When the single thread is fetched, either from opening it from
the list, an OM indicator, or just from doing .find() on the
manager when a new MessageBus message comes in
This will let us track the lastReadMessageId on the client, and
will also let us fix an issue where the unread indicator in the
channel header was incrementing for every thread that got a
new message, regardless of whether the user was a member.
This commit adds the thread index and individual thread
in the index list unread indicators, and wires up the message
bus events to mark the threads as read/unread when:
1. People send a new message in the thread
2. The user marks a thread as read
There are several hacky parts and TODOs to cover before
this is more functional:
1. We need to flesh out the thread scrolling and message
visibility behaviour. Currently if you scroll to the end
of the thread it will just mark the whole thread read
unconditionally.
2. We need to send down the thread current user membership
along with the last read message ID to the client and
update that with read state.
3. We need to handle the sidebar unread dot for when threads
are unread in the channel and clear it based on when the
channel was last viewed.
4. We need to show some indicator of thread unreads on the
thread indicators on original messages.
5. UI improvements to make the experience nicer and more
like the actual design rather than just placeholders.
But, the basic premise around incrementing/decrementing the
thread overview count and showing which thread is unread
in the list is working as intended.
In the ChannelViewBuilder, we introduced a check to see if
the target message exists, which errors if the message has
been trashed. However if the user is the creator of the message
or admin then they are able to see trashed messages, so
we need to take this into account.
Followup to c908eeacc9
Instead of using the latest message ID in the channel, which
could cause issues if you have an earlier last read message ID
that matches the deleted one, instead we use the first non-deleted
message that comes before the deleted message by ID.
Followup ae3231e140, when a
message is trashed we already update the lastReadMessageId of
all users in the channel to the latest non-deleted message on
the server side. However we didn't propagate this to the client,
so in some cases when we did the following:
1. Delete the last message in the channel
2. Switch to another channel
3. Switch back to the original
We would get a 404 error from the target message ID being looked
up still being the old lastReadMessageId (now deleted) for the
user's channel membership.
All we need to do is send the last not-deleted message ID for
the channel (or thread) to all the member users.
This commit moves message lookup and querying to the
/chat/api/channel/:id endpoint and adds the ability
to query the tracking state overview for threads as well
as the threads and thread tracking state for any thread
original messages found.
This will allow us to get an initial overview of thread
tracking for a user when they first enter a channel, rather
than pre-emptively loading N threads and tracking state
for those across all channels on the current user serializer,
which would be expensive.
This initial overview will be used in subsequent PRs to
flesh out the thread unread indicators in the UI.
This also moves many chunks of code that were in services
to reusable Query classes, since use of services inside
services is discouraged.
This moves chat tracking state calculation for channels
and threads into a central Chat::TrackingStateManager service, that
serves a similar purpose to the TopicTrackingState model
in core.
This service calls down to these query classes:
* ThreadUnreadsQuery
* ChannelUnreadsQuery
To get the unread_count and mention_count for the appropriate
channels and threads.
As well as this, this commit refactors the client-side chat
tracking state.
Now, there is a central ChatTrackingStateManager Ember Service
so all tracking is accessible and can be counted from one place,
which can also initialize tracking from an initial payload.
The actual tracking counts are now maintained in a ChatTrackingState
class that is initialized on the `.tracking` property of both channel and
thread objects.
This removes the attributes on UserChatChannelMembership and decoration
of said membership from ChannelFetcher, preferring instead to have an additional
object for tracking in the JSON.
A chat message may be restored later, so we shouldn't be deleting `chat_mentions` records for it.
But we still have to remove notifications (see 082cd139).
When the user sends a message in a thread, we want to
create a membership for them in the background (default
to notification level of Watching) so we can track whether
they have read the thread.
Then, for now since we don't have granular message reading/
scrolling in the thread panel, we just update the thread
last_read_message_id for the user to the latest reply in the
thread when they open the thread panel. This at least will
mark the thread as read.
In future PRs we want to show the blue dot indicator in various
places in the UI for unread threads which will also require
some MessageBus functionality.
This takes into account the same issue fixed for channels
in ae3231e140
