Show creator of the expense as default attendee when there is no attendee

Author: parasharrajat

src/libs/TransactionUtils/index.ts

@@ -17,7 +17,7 @@ import DistanceRequestUtils from '@libs/DistanceRequestUtils';
 import {toLocaleDigit} from '@libs/LocaleDigitUtils';
 import {translateLocal} from '@libs/Localize';
 import {rand64, roundToTwoDecimalPlaces} from '@libs/NumberUtils';
-import {getPersonalDetailByEmail} from '@libs/PersonalDetailsUtils';
+import {getPersonalDetailsByIDs} from '@libs/PersonalDetailsUtils';
 import {
     getCommaSeparatedTagNameWithSanitizedColons,
     getDistanceRateCustomUnitRate,
@@ -728,7 +728,35 @@ function getMerchantOrDescription(transaction: OnyxEntry<Transaction>) {
  * Return the list of modified attendees if present otherwise list of attendees
  */
 function getAttendees(transaction: OnyxInputOrEntry<Transaction>): Attendee[] {
-    return transaction?.modifiedAttendees ? transaction.modifiedAttendees : (transaction?.comment?.attendees ?? []);
+    const attendees = transaction?.modifiedAttendees ? transaction.modifiedAttendees : (transaction?.comment?.attendees ?? []);
+    if (attendees.length === 0 && transaction?.reportID) {
+        // Get the creator of the transaction by looking at the owner of the report linked to the transaction
+        const report = getReportOrDraftReport(transaction.reportID);
+        const creatorAccountID = report?.ownerAccountID;
+
+        if (creatorAccountID) {
+            const [creatorDetails] = getPersonalDetailsByIDs({accountIDs: [creatorAccountID], currentUserAccountID});
+            const creatorEmail = creatorDetails?.login ?? '';
+            const creatorDisplayName = creatorDetails?.displayName ?? creatorEmail;
+
+            // Check if the creator is already in the attendees list
+            const isCreatorAlreadyInAttendees = attendees.some((attendee) => attendee.accountID === creatorAccountID);
+
+            if (!isCreatorAlreadyInAttendees && creatorEmail) {
+                attendees.push({
+                    email: creatorEmail,
+                    login: creatorEmail,
+                    displayName: creatorDisplayName,
+                    accountID: creatorAccountID,
+                    text: creatorDisplayName,
+                    searchText: creatorDisplayName,
+                    avatarUrl: creatorDetails?.avatarThumbnail ?? '',
+                    selected: true,
+                });
+            }
+        }
+    }
+    return attendees;
 }
 
 /**