[$250] [Track Tax] The tax amount of a manual IOU will be in negative format

[lanitochka17]

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Version Number: 1.4.69-0
Reproducible in staging?: Y
Reproducible in production?: Y
If this was caught during regression testing, add the test name, ID and link from TestRail: N/A
Email or phone of affected tester (no customers): sustinov@applausemail.com
Issue reported by: Applause - Internal Team

Issue found whene executing PR #41264

Action Performed:

1. Open https://staging.new.expensify.com/
2. Log in to your HT account
3. Create a WS
4. Enable "Taxes"
5. Set "Tax Rate 1" as Workspace currency default
6. Navigate to the WS room
7. Create any manual IOU
8. Create another manual IOU with a default currency and a Tax Rate 1
9. Navigate to the details of the last IOU created
10. Change the tax amount to any valid amount
11. Start creating a new manual IOU
12. Navigate to the tax amount entry menu

Expected Result:

The tax amount when creating a manual IOU should not be in a negative format

Actual Result:

After editing the Tax amount in an existing IOU, the next time a manual IOU is created, the Tax amount in the edit menu will be in negative format

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

Bug6467975_1714572153780.Recording__113.mp4

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Upwork Automation - Do Not Edit

• Upwork Job URL: https://www.upwork.com/jobs/~010f30064172acce83
• Upwork Job ID: 1786430749556625408
• Last Price Increase: 2024-05-03
• Automatic offers:
• hoangzinh | Reviewer | 0
• bernhardoj | Contributor | 0

Issue Owner

Current Issue Owner: @greg-schroeder

[melvin-bot]

Triggered auto assignment to @alexpensify (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.

[lanitochka17]

@alexpensify FYI I haven't added the External label as I wasn't 100% sure about this issue. Please take a look and add the label if you agree it's a bug and can be handled by external contributors

[lanitochka17]

We think that this bug might be related to #wave-collect - Release 1

[bernhardoj]

Proposal

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

The tax amount is shown in negative value.

What is the root cause of that problem?

The tax amount is taken from getTaxAmount.

App/src/libs/TransactionUtils.ts

Lines 301 to 310 in 12042db

	function getTaxAmount(transaction: OnyxEntry<Transaction>, isFromExpenseReport: boolean): number {
	// IOU requests cannot have negative values but they can be stored as negative values, let's return absolute value
	if (!isFromExpenseReport) {
	return Math.abs(transaction?.taxAmount ?? 0);
	}
	// To avoid -0 being shown, lets only change the sign if the value is other than 0.
	const amount = transaction?.taxAmount ?? 0;
	return amount ? -amount : 0;
	}

For an expense report, we negate the amount value. The reason is explained in the comment in getAmount, that is, the amount for the expense report is stored in negative value.

App/src/libs/TransactionUtils.ts

Lines 285 to 287 in 12042db

	// Expense report case:
	// The amounts are stored using an opposite sign and negative values can be set,
	// we need to return an opposite sign than is saved in the transaction object

That's true, but it's only when the request is created.

App/src/libs/actions/IOU.ts

Lines 1817 to 1818 in c5a1f96

	let optimisticTransaction = TransactionUtils.buildOptimisticTransaction(
	ReportUtils.isExpenseReport(iouReport) ? -amount : amount,

While we are creating the request, the amount is still in positive value, so negating it will give us a negative tax amount.

This doesn't happen on the amount page because we always return the absolute value.

App/src/pages/iou/request/step/IOURequestStepAmount.tsx

Line 287 in c5a1f96

amount={Math.abs(transactionAmount)}

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

Do the same as what we did on the amount page, that is return the absolute value of the amount.
Math.abs(transactionDetails?.taxAmount)

What alternative solutions did you explore? (Optional)

If we are creating a new request, don't negate the amount value.

[melvin-bot]

Job added to Upwork: https://www.upwork.com/jobs/~010f30064172acce83

[melvin-bot]

Triggered auto assignment to Contributor-plus team member for initial proposal review - @hoangzinh (External)