Chat channels that are linked to a category can be set to automatically join users.
This is handled by subscribing to the following events
- group_destroyed
- user_seen
- user_confirmed_email
- user_added_to_group
- user_removed_from_group
- category_updated
- site_setting_changed (for `chat_allowed_groups`)
As well as a
- hourly background job (`AutoJoinUsers`)
- `CreateCategoryChannel` service
- `UpdateChannel` service
There was however two issues with the current implementation
1. We were triggering a lot of background jobs, mostly because it was decided to batch to auto join/leave into groups of 1000 users, adding a lot of stress to the system
2. We had one "class" (a service or a background job) per "event" and all of them had slightly different ways to select users to join/leave, making it hard to keep everything in sync
This PR "simply" adds two new servicesL `AutoJoinChannels` and `AutoLeaveChannels` that takes care, in an efficient way, of all the cases when users might automatically join a leave a chat channel.
Every other changes come from the fact that we're now always calling either one of those services, depending on the event that happened.
In the making of these classes, a few bugs were encountered and fixed, notably
- A user is only ever able to access chat channels if and only if they're part of a group listed in the `chat_allowed_group` site setting
- A category that has no associated "category groups" is only accessible to staff members (and not "Everyone")
- A silenced user should not be able to automatically join channels
- We should not attempt to automatically join users to deleted chat channels
- There is no need to automatically join users to chat channels that have already more than `max_chat_auto_joined_users` users
Internal - t/135259 & t/70607
* DEV: add specs for auto join/leave channels services
* DEV: less hacky specs
* DEV: no instance variables in specs
This fixes a longstanding TODO to move the contents of the
UpdateUserCountsForChannels job to the ensure_consistency!
method of Chat::Channel, which runs every 15 mins as part of
periodical updates.
This commit also addresses the performance issue of the original,
where we would fetch all channels and do an individual query to
get the count and update the count of each one. Now we do it all
in one query, and only publish the changed channels to the UI.
Further followup to 24ec06ff85,
where I prevented other chat scheduled jobs from running if
chat was disabled. We should not be running any plugin scheduled
jobs if that plugin is disabled, it can cause unexpected
behaviour.
This commit main goal was to comply with Zeitwerk and properly rely on autoloading. To achieve this, most resources have been namespaced under the `Chat` module.
- Given all models are now namespaced with `Chat::` and would change the stored types in DB when using polymorphism or STI (single table inheritance), this commit uses various Rails methods to ensure proper class is loaded and the stored name in DB is unchanged, eg: `Chat::Message` model will be stored as `"ChatMessage"`, and `"ChatMessage"` will correctly load `Chat::Message` model.
- Jobs are now using constants only, eg: `Jobs::Chat::Foo` and should only be enqueued this way
Notes:
- This commit also used this opportunity to limit the number of registered css files in plugin.rb
- `discourse_dev` support has been removed within this commit and will be reintroduced later
<!-- NOTE: All pull requests should have tests (rspec in Ruby, qunit in JavaScript). If your code does not include test coverage, please include an explanation of why it was omitted. -->
FEATURE: Chat and Sidebar are now on by default
- Set the sidebar site setting to be enabled by default
- Set the chat site setting to be enabled by default
- Updated existing specs that assumed the original default
- Use a migration to keep old defaults for existing sites
