[HOLD for payment 07-31-2024][$250] CRITICAL [UX Reliability] The loading skeleton exhibits three different behaviors

[m-natarajan]

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Version Number: v1.4.83-3
Reproducible in staging?: y
Reproducible in production?: y
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
Expensify/Expensify Issue URL:
Issue reported by: @muttmuure
Slack conversation: https://expensify.slack.com/archives/C05LX9D6E07/p1718365848007159

Action Performed:

1. Go to staging.new.expensify.com
2. Click on any report in LHN

Expected Result:

Skeleton animation work as expected

Actual Result:

At times the static image of the skeleton shows and the skeleton doesn’t appear at all.

Workaround:

Unknown

Platforms:

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

• Android: Native
• Android: mWeb Chrome
• iOS: Native
• iOS: mWeb Safari
• MacOS: Chrome / Safari
• MacOS: Desktop

Screenshots/Videos

Add any screenshot/video evidence

Blurred.animations.mov

Recording.220.mp4

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Issue Owner

Current Issue Owner: @akinwale

[melvin-bot]

Triggered auto assignment to @lschurr (Bug), see https://stackoverflow.com/c/expensify/questions/14418 for more details. Please add this bug to a GH project, as outlined in the SO.

[melvin-bot]

Triggered auto assignment to @tgolen (AutoAssignerNewDotQuality)

[tsa321]

Proposal

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

UX Reliability issue: The loading skeleton exhibits three different behaviors. Sometimes skeleton view shown above one or two report actions, sometimes doesn't show up, sometimes full cover skeleton shown in

What is the root cause of that problem?

When user open app / first OpenApp, back end returns certain reportActions types (IOU report actions, reportpreview aciton, and some others...). There are three different case:

1. When opening a report the report actions returned by OpenApp will be displayed at bottom and skeleton shown above it. When OpenReport request completed the report actions moved to proper position.

2. For other case when full skeleton view is displayed it means, there is no cached report actions (there is no report actions type IOU, or other type that returned by OpenApp). So cached report actions is empty.

3. Case when user open report then App immediately displays the messages, it means there are cached report actions in onyx.

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

When opening a report, OpenReport will return around 100 latest reportActions. We could show full skeleton view when getContinous reportActions :

App/src/pages/home/ReportScreen.tsx

Lines 257 to 261 in 75c104b

	const reportActions = useMemo(() => {
	if (!sortedAllReportActions.length) {
	return [];
	}
	return ReportActionsUtils.getContinuousReportActionChain(sortedAllReportActions, reportActionIDFromRoute);

When the continuous reportActions doesn't reach around 50 / 100 or the oldest reportAction type isn't CREATED type.
We should wait for OpenReport to be completed and show the full skeleton view.

In the end there will be two behavior, If cached report actions exist and fulfill the criteria above we immediately show it. If the above criteria doesn't met we display full skeleton view and wait for OpenReport to be completed.

App/src/pages/home/ReportScreen.tsx

Lines 382 to 384 in 75c104b

	const shouldShowSkeleton =
	!isLinkedMessageAvailable &&
	(isLinkingToMessage ||

The shouldShowSkeleton could be:

const isCreatedActionExist = ReportActionsUtils.isCreatedAction(reportActions.at(-1));
const shouldShowSkeleton = 
        (isLinkingToMessage && !isLinkedMessageAvailable) ||
        (reportActions.length < 50 && !isCreatedActionExist && !!reportMetadata?.isLoadingInitialReportActions) ||
        isLoading ||
        (!!reportActionIDFromRoute && reportMetadata?.isLoadingInitialReportActions);

The in here
the condition to show reportActionsView is !shouldShowSkeleton

Result:

web.mp4

[tgolen]

I'm going to discuss this internally first to see what the expected behavior should be.