☂️ Handle all Zulip events to keep our data up to date

[gnprice]

We'll want to handle essentially all the events that can appear through the Zulip event system:
https://zulip.com/api/get-events#events

Some of these are correctness issues in the early prototype: we're tracking the data they would update, but are not handling the update, so our data goes stale. Others are not correctness issues because we're not yet tracking that data in the first place, but are for data we do intend to track before launch. Both those categories are in scope for this issue.

Out of scope for this issue: A few event types are for data that is only needed for areas of UI that we don't have in zulip-mobile and don't intend to have in zulip-flutter before launch. E.g., attachment, which is for web's #settings/uploaded-files screen.

Event types

• Edit this description to have a complete list of event types. (Include the types that are already handled or are out of scope; just mark them as such.)

For alpha

• heartbeat
• custom_profile_fields
• user_settings/update
• realm_user/update
• realm_user/add
• realm_user/remove
• stream/create Handle created/deleted streams (stream op: create and stream op: delete events) #181
• stream/delete
• message
• reaction/add Add Reaction class; uncomment Message.reactions and update on events #256
• reaction/remove
• update_message for edits (not moves) Handle edited messages (update_message events, 1/2) #118
• update_message_flags/add
• update_message_flags/remove

For beta

• subscription/add Subscription api events #382
• subscription/remove
• subscription/update still need msglist: Update message list on muting/unmuting a channel #1255
• user_topic Handle muted streams and topics #346, msglist: Handle UserTopicEvent, hiding/showing messages as needed #822
• submessage polls: Read-only support #165

For launch

• restart Handle restart events #1271
• realm_emoji/update store: Add realmEmoji, initialized from initial snapshot and updated with its event #394
• muted_users Mute muted users #296
• stream/update Handle updated streams (stream op: update events) #182
• delete_message Handle deleted messages (delete_message events) #120
• update_message for moves (vs. edits) Handle moved messages (update_message events, 2/2) #150
• typing/start Show "typing" status #665
• typing/stop Show "typing" status #665
• saved_snippets/add Add saved snippets #863
• saved_snippets/remove Add saved snippets #863

For post-launch period

• realm/update Track realm settings #668
• realm/update_dict Track realm settings #668
• user_group/add Store user groups #662
• user_group/update
• user_group/add_members
• user_group/remove_members
• user_group/add_subgroups
• user_group/remove_subgroups
• user_group/remove
• presence Presence data, and report presence #196
• user_status Track user status #197
• realm_linkifiers (part of Local echo when sending messages #576)
• alert_words Handle alert words (pre-"watched phrases") #663
• drafts/add (cf Basic implementation of message drafts, to preserve composing progress #1217 but that's for local drafts)
• drafts/update
• drafts/remove
• has_zoom_token

For beyond post-launch

Other than realm settings UI

• scheduled_messages/add
• scheduled_messages/update
• scheduled_messages/remove
• attachment/add
• attachment/update
• attachment/remove
• subscription/peer_add (cf Handle subscription peer add/remove events #374)
• subscription/peer_remove
• realm/deactivated

For realm settings UI

• default_stream_groups
• default_streams
• realm_playgrounds
• realm_domains/add
• realm_domains/change
• realm_domains/remove
• realm_export
• realm_export_consent
• realm_user_settings_defaults/update
• invites_changed
• realm_bot/add
• realm_bot/update
• realm_bot/remove
• realm_bot/delete

Never

Obsolete

• muted_topics Support muted_topics format for pre-Zulip Server 6 #422
• realm_filters
• update_display_settings
• update_global_notifications

Specific to web

• onboarding_steps
• web_reload_client

No longer exist

• hotspots

[gnprice]

I've given this the "beta" milestone, but there may be specific events we decide can wait for launch or even beyond. What's needed for beta is really just that we should look at the list and make any such choice explicitly. -> Filed #308 for this part.