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[lib] DMOperationSpec for join thread operation
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Authored by tomek on Jul 24 2024, 9:03 AM.
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Summary
Test Plan

Just the Flow. Further testing will be performed after it is connected with the rest of the app.

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lib/shared/dm-ops/join-thread-spec.js
67 ↗(On Diff #42739)
tomek requested review of this revision.Jul 24 2024, 9:23 AM
lib/shared/dm-ops/join-thread-spec.js
92 ↗(On Diff #42741)

Is this needed if currentThreadInfo is explicitly ThickRawThreadInfo?

95 ↗(On Diff #42741)

In add members we filtered out the users we already have in members. Should we check if the user joining is already a member of the thread? (they may have been added by someone for example)

103 ↗(On Diff #42741)

Should we set the unread status?

tomek marked 3 inline comments as done.

Create a new thread

lib/shared/dm-ops/join-thread-spec.js
95 ↗(On Diff #42741)

Good point! I think we should filter them out when creating an update. But we should create the message regardless, so that each client has all the message infos.

lib/shared/dm-ops/join-thread-spec.js
103 ↗(On Diff #42741)

I'm wondering if this isn't more complicated. It can happen that the new message isn't the most recent one. Should we update the unread status in that case?

Add all the thread to the utils

lib/shared/dm-ops/join-thread-spec.js
41–46 ↗(On Diff #42909)

Doesn't this negate this:

Good point! I think we should filter them out when creating an update. But we should create the message regardless, so that each client has all the message infos.

?

103 ↗(On Diff #42741)

Isn't that the case for all ops?
I think we should change the status even if the message is not the newest. This may be a bit confusing, but I think it's better than not being informed at all about a message the user has not seen yet

lib/shared/dm-ops/join-thread-spec.js
41–46 ↗(On Diff #42909)

Ahhh, you're right. Thanks for catching this!

103 ↗(On Diff #42741)

That makes sense! But I think we need @ashoat's decision here as it affects the UX.

Create a message even when a user is already a member

inka added inline comments.
lib/shared/dm-ops/join-thread-spec.js
102 ↗(On Diff #43017)

if userIsMember(currentThreadInfo, editorID) we already returned in 49th line. Is this check needed for something?

This revision is now accepted and ready to land.Aug 1 2024, 6:35 AM

I think we should change the status even if the message is not the newest. This may be a bit confusing, but I think it's better than not being informed at all about a message the user has not seen yet

I think I agree with @inka here

Delete unnecessary check

lib/shared/dm-ops/join-thread-spec.js
102 ↗(On Diff #43017)

I don't think so - we can remove it.

lib/shared/dm-ops/join-thread-spec.js
37 ↗(On Diff #43044)

I think the choice of editorID is confusing here. Assuming that this spec is only used for when a user joins a thread out of their own volition, I think a name like joinerID would be less ambiguous, and avoid implying that there might be a separate "editor" other than the joiner

58 ↗(On Diff #43044)

It seems like we are potentially setting the thread to unread on the joiner's other devices. Is this intentional? Generally we don't want to set the thread to unread based on the viewer's own actions

83–89 ↗(On Diff #43044)

Same concern here

lib/shared/dm-ops/join-thread-spec.js
37 ↗(On Diff #43044)

Ok, that makes sense. I wanted to make it consistent with other robotext operations, but in this context joiner is better.

58 ↗(On Diff #43044)

Yes, that's correct and it wasn't intentional. Added a comment to https://linear.app/comm/issue/ENG-8930/unify-the-approach-to-replies-count-and-unread-status-updates#comment-875b874d where we are refactoring the approach to be less repetitive.

lib/shared/dm-ops/join-thread-spec.js
37 ↗(On Diff #43044)