Handle tax for split requests

src/libs/API/parameters/SplitBillParams.ts

@@ -15,6 +15,8 @@ type SplitBillParams = {
     policyID: string | undefined;
     chatType: string | undefined;
     splitPayerAccountIDs: number[];
+    taxCode: string;
+    taxAmount: number;
 };
 
 export default SplitBillParams;

src/libs/actions/IOU.ts

@@ -3726,6 +3726,8 @@ function createSplitsAndOnyxData(
     existingSplitChatReportID = '',
     billable = false,
     iouRequestType: IOURequestType = CONST.IOU.REQUEST_TYPE.MANUAL,
+    taxCode = '',
+    taxAmount = 0,
 ): SplitsAndOnyxData {
     const currentUserEmailForIOUSplit = PhoneNumber.addSMSDomainIfPhoneNumber(currentUserLogin);
     const participantAccountIDs = participants.map((participant) => Number(participant.accountID));
@@ -3747,8 +3749,8 @@ function createSplitsAndOnyxData(
         undefined,
         category,
         tag,
-        undefined,
-        undefined,
+        taxCode,
+        taxAmount,
         billable,
     );
 
@@ -3903,14 +3905,16 @@ function createSplitsAndOnyxData(
 
     // Loop through participants creating individual chats, iouReports and reportActionIDs as needed
     const currentUserAmount = splitShares?.[currentUserAccountID]?.amount ?? IOUUtils.calculateAmount(participants.length, amount, currency, true);
+    const currentUserTaxAmount = IOUUtils.calculateAmount(participants.length, taxAmount, currency, true);
 
-    const splits: Split[] = [{email: currentUserEmailForIOUSplit, accountID: currentUserAccountID, amount: currentUserAmount}];
+    const splits: Split[] = [{email: currentUserEmailForIOUSplit, accountID: currentUserAccountID, amount: currentUserAmount, taxAmount: currentUserTaxAmount}];
 
     const hasMultipleParticipants = participants.length > 1;
     participants.forEach((participant) => {
         // In a case when a participant is a workspace, even when a current user is not an owner of the workspace
         const isPolicyExpenseChat = ReportUtils.isPolicyExpenseChat(participant);
         const splitAmount = splitShares?.[participant.accountID ?? -1]?.amount ?? IOUUtils.calculateAmount(participants.length, amount, currency, false);
+        const splitTaxAmount = IOUUtils.calculateAmount(participants.length, taxAmount, currency, false);
 
         // To exclude someone from a split, the amount can be 0. The scenario for this is when creating a split from a group chat, we have remove the option to deselect users to exclude them.
         // We can input '0' next to someone we want to exclude.
@@ -3980,8 +3984,8 @@ function createSplitsAndOnyxData(
             undefined,
             category,
             tag,
-            undefined,
-            undefined,
+            taxCode,
+            splitTaxAmount,
             billable,
         );
 
@@ -4073,6 +4077,7 @@ function createSplitsAndOnyxData(
             reportPreviewReportActionID: oneOnOneReportPreviewAction.reportActionID,
             transactionThreadReportID: optimisticTransactionThread.reportID,
             createdReportActionIDForThread: optimisticCreatedActionForTransactionThread.reportActionID,
+            taxAmount: splitTaxAmount,
         };
 
         splits.push(individualSplit);
@@ -4126,6 +4131,8 @@ type SplitBillActionsParams = {
     existingSplitChatReportID?: string;
     splitShares?: SplitShares;
     splitPayerAccountIDs?: number[];
+    taxCode?: string;
+    taxAmount?: number;
 };
 
 /**
@@ -4148,6 +4155,8 @@ function splitBill({
     existingSplitChatReportID = '',
     splitShares = {},
     splitPayerAccountIDs = [],
+    taxCode = '',
+    taxAmount = 0,
 }: SplitBillActionsParams) {
     const currentCreated = DateUtils.enrichMoneyRequestTimestamp(created);
     const {splitData, splits, onyxData} = createSplitsAndOnyxData(
@@ -4165,6 +4174,8 @@ function splitBill({
         existingSplitChatReportID,
         billable,
         iouRequestType,
+        taxCode,
+        taxAmount,
     );
 
     const parameters: SplitBillParams = {
@@ -4184,6 +4195,8 @@ function splitBill({
         policyID: splitData.policyID,
         chatType: splitData.chatType,
         splitPayerAccountIDs,
+        taxCode,
+        taxAmount,
     };
 
     API.write(WRITE_COMMANDS.SPLIT_BILL, parameters, onyxData);
@@ -4210,6 +4223,8 @@ function splitBillAndOpenReport({
     iouRequestType = CONST.IOU.REQUEST_TYPE.MANUAL,
     splitShares = {},
     splitPayerAccountIDs = [],
+    taxCode = '',
+    taxAmount = 0,
 }: SplitBillActionsParams) {
     const currentCreated = DateUtils.enrichMoneyRequestTimestamp(created);
     const {splitData, splits, onyxData} = createSplitsAndOnyxData(
@@ -4227,6 +4242,8 @@ function splitBillAndOpenReport({
         '',
         billable,
         iouRequestType,
+        taxCode,
+        taxAmount,
     );
 
     const parameters: SplitBillParams = {
@@ -4246,6 +4263,8 @@ function splitBillAndOpenReport({
         policyID: splitData.policyID,
         chatType: splitData.chatType,
         splitPayerAccountIDs,
+        taxCode,
+        taxAmount,
     };
 
     API.write(WRITE_COMMANDS.SPLIT_BILL_AND_OPEN_REPORT, parameters, onyxData);

src/pages/iou/request/step/IOURequestStepConfirmation.tsx

@@ -375,6 +375,8 @@ function IOURequestStepConfirmation({
                         iouRequestType: transaction.iouRequestType,
                         splitShares: transaction.splitShares,
                         splitPayerAccountIDs: transaction.splitPayerAccountIDs ?? [],
+                        taxCode: transactionTaxCode,
+                        taxAmount: transactionTaxAmount,
                     });
                 }
                 return;
@@ -398,6 +400,8 @@ function IOURequestStepConfirmation({
                         iouRequestType: transaction.iouRequestType,
                         splitShares: transaction.splitShares,
                         splitPayerAccountIDs: transaction.splitPayerAccountIDs,
+                        taxCode: transactionTaxCode,
+                        taxAmount: transactionTaxAmount,
                     });
                 }
                 return;
@@ -493,6 +497,8 @@ function IOURequestStepConfirmation({
             policy,
             policyTags,
             policyCategories,
+            transactionTaxAmount,
+            transactionTaxCode,
         ],
     );
 

src/pages/iou/request/step/IOURequestStepParticipants.tsx

@@ -41,7 +41,9 @@ function IOURequestStepParticipants({
     const participants = transaction?.participants;
     const {translate} = useLocalize();
     const styles = useThemeStyles();
-    const selectedReportID = useRef<string>(reportID);
+
+    // We need to set selectedReportID if user has navigated back from confirmation page and navigates to confirmation page with already selected participant
+    const selectedReportID = useRef<string>(participants?.length === 1 ? participants[0]?.reportID ?? reportID : reportID);
     const numberOfParticipants = useRef(participants?.length ?? 0);
     const iouRequestType = TransactionUtils.getRequestType(transaction);
     const isSplitRequest = iouType === CONST.IOU.TYPE.SPLIT;

src/types/onyx/IOU.ts

@@ -41,6 +41,7 @@ type Split = {
     reportPreviewReportActionID?: string;
     transactionThreadReportID?: string;
     createdReportActionIDForThread?: string;
+    taxAmount?: number;
 };
 
 type IOU = {