[HOLD for payment 2023-08-28] [HOLD for payment 2023-08-24] LNH - The conversation will be removed from the LHN if the last message is an attachment

[lanitochka17]

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Issue found when executing PR #24466

Action Performed:

1. Open New Expensify app or https://staging.new.expensify.com/
2. Navigate to any conversation
3. Click the action menu in the conversation
4. Click on "Add attachment"
5. Add any valid attachment
6. Navigate to another conversation with another user

Expected Result:

A conversation should not disappear from the LNH menu, even if the last message was an attachment

Actual Result:

If the last message in a conversation is an attachment, that conversation disappears from the LNH menu when you switch to another conversation

Workaround:

Unknown

Platforms:

Which of our officially supported platforms is this issue occurring on?

• Android / native
• Android / Chrome
• iOS / native
• iOS / Safari
• MacOS / Chrome / Safari
• MacOS / Desktop

Version Number: 1.3.54.8

Reproducible in staging?: Yes

Reproducible in production?: No

If this was caught during regression testing, add the test name, ID and link from TestRail:

Email or phone of affected tester (no customers):

Logs: https://stackoverflow.com/c/expensify/questions/4856

Notes/Photos/Videos: Any additional supporting documentation

Bug6165898_Recording__26__2_.mp4

Expensify/Expensify Issue URL:

Issue reported by: Applause - Internal Team / @namhihi237

Slack conversation: https://expensify.slack.com/archives/C049HHMV9SM/p1692015600197289

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[OSBotify]

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[namhihi237]

I think I had reported here

[melvin-bot]

Triggered auto assignment to @johnmlee101 (Engineering), see https://stackoverflow.com/c/expensify/questions/4319 for more details.

[Nikhil-Vats]

Proposal

Please re-state the problem that we are trying to solve in this issue.

LHN - The conversation is be removed from the LHN if the last message is an attachment.

What is the root cause of that problem?

In ReportUtils, we check if chat is empty by checking the key lastMessageText for the object returned by function getLastVisibleMessage.

App/src/libs/ReportUtils.js

Lines 2505 to 2510 in 2e8e699

	const isEmptyChat = !ReportActionsUtils.getLastVisibleMessage(report.reportID).lastMessageText;
	// Hide only chat threads that haven't been commented on (other threads are actionable)
	if (isChatThread(report) && isEmptyChat) {
	return false;
	}

But in getLastVisibleMessage, we return a different key lastMessageTranslationKey for attachments -

App/src/libs/ReportActionsUtils.js

Lines 403 to 411 in 58d7ac8

	function getLastVisibleMessage(reportID, actionsToMerge = {}) {
	const lastVisibleAction = getLastVisibleAction(reportID, actionsToMerge);
	const message = lodashGet(lastVisibleAction, ['message', 0], {});
	if (isReportMessageAttachment(message)) {
	return {
	lastMessageTranslationKey: CONST.TRANSLATION_KEYS.ATTACHMENT,
	};
	}

What changes do you think we should make in order to solve the problem?

We should check for both keys in shouldReportBeInOptionList while evaluating isEmptyChat -

const lastVisibleMessage = ReportActionsUtils.getLastVisibleMessage(report.reportID);
const isEmptyChat = !lastVisibleMessage.lastMessageText && !lastVisibleMessage.lastMessageTranslationKey;

What alternative solutions did you explore? (Optional)

NA

[Nikhil-Vats]

Hey @luacmartins @mountiny, this is a regression from #19321. I have found the root cause and tested that it is working. I can open a PR within right now if you agree.

[PauloGasparSv]

@Nikhil-Vats's proposal looks good to me!

[Nikhil-Vats]

@PauloGasparSv can I create a PR then?