move combined reportAction logic into ReportActionUtils

src/libs/ReportActionsUtils.ts

@@ -231,6 +231,7 @@ function getOneTransactionThreadReportID(reportActions: OnyxEntry<ReportActions>
             (iouRequestTypes.includes(action.originalMessage.type) ?? []) &&
             action.childReportID &&
             // Include deleted IOU reportActions if they have childAactions because we want to display those comments
+            // eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing
             ((action.originalMessage.deleted && action.childVisibleActionCount) || action.originalMessage.IOUTransactionID),
     );
 
@@ -279,6 +280,26 @@ function getSortedReportActions(reportActions: ReportAction[] | null, shouldSort
     return sortedActions;
 }
 
+/**
+ * Returns a combined list of report actions for a report and associated transaction thread report
+ */
+function getCombinedReportActions(reportActions: ReportAction[], transactionThreadReportActions: ReportAction[]): ReportAction[] {
+    if (isEmptyObject(transactionThreadReportActions)) {
+        return reportActions;
+    }
+
+    // Filter out the created action from the transaction thread report actions, since we already have the parent report's created action in `reportActions`
+    const filteredTransactionThreadReportActions = transactionThreadReportActions?.filter((action) => action.actionName !== CONST.REPORT.ACTIONS.TYPE.CREATED);
+
+    // Filter out request and send money request actions because we don't want to show any preview actions for one transaction reports
+    const filteredReportActions = [...reportActions, ...filteredTransactionThreadReportActions].filter((action) => {
+        const actionType = (action as OriginalMessageIOU).originalMessage?.type ?? '';
+        return actionType !== CONST.IOU.REPORT_ACTION_TYPE.CREATE && !isSentMoneyReportAction(action);
+    });
+
+    return getSortedReportActions(filteredReportActions, true);
+}
+
 /**
  * Returns the largest gapless range of reportActions including a the provided reportActionID, where a "gap" is defined as a reportAction's `previousReportActionID` not matching the previous reportAction in the sortedReportActions array.
  * See unit tests for example of inputs and expected outputs.
@@ -1077,6 +1098,7 @@ export {
     isApprovedOrSubmittedReportAction,
     getReportPreviewAction,
     getSortedReportActions,
+    getCombinedReportActions,
     getSortedReportActionsForDisplay,
     isConsecutiveActionMadeByPreviousActor,
     isCreatedAction,

src/pages/home/report/ReportActionsView.tsx

@@ -138,19 +138,7 @@ function ReportActionsView({
     // Get a sorted array of reportActions for both the current report and the transaction thread report associated with this report (if there is one)
     // so that we display transaction-level and report-level report actions in order in the one-transaction view
     const combinedReportActions = useMemo(() => {
-        if (isEmptyObject(transactionThreadReportActions)) {
-            return allReportActions;
-        }
-
-        // Filter out the created action from the transaction thread report actions, since we already have the parent report's created action in `reportActions`
-        const filteredTransactionThreadReportActions = transactionThreadReportActions?.filter((action) => action.actionName !== CONST.REPORT.ACTIONS.TYPE.CREATED);
-
-        // Filter out request and send money request actions because we don't want to show any preview actions for one transaction reports
-        const filteredReportActions = [...allReportActions, ...filteredTransactionThreadReportActions].filter((action) => {
-            const actionType = (action as OnyxTypes.OriginalMessageIOU).originalMessage?.type ?? '';
-            return actionType !== CONST.IOU.REPORT_ACTION_TYPE.CREATE && !ReportActionsUtils.isSentMoneyReportAction(action);
-        });
-        return ReportActionsUtils.getSortedReportActions(filteredReportActions, true);
+        return ReportActionsUtils.getCombinedReportActions(allReportActions, transactionThreadReportActions);
     }, [allReportActions, transactionThreadReportActions]);
 
     const indexOfLinkedAction = useMemo(() => {