Remove isArray checks for onboarding

src/ONYXKEYS.ts

@@ -890,8 +890,7 @@ type OnyxValuesMapping = {
     [ONYXKEYS.ACCOUNT_MANAGER_REPORT_ID]: string;
     [ONYXKEYS.NVP_IS_FIRST_TIME_NEW_EXPENSIFY_USER]: boolean;
 
-    // NVP_ONBOARDING is an array for old users.
-    [ONYXKEYS.NVP_ONBOARDING]: Onboarding | [];
+    [ONYXKEYS.NVP_ONBOARDING]: Onboarding;
 
     // ONYXKEYS.NVP_TRYNEWDOT is HybridApp onboarding data
     [ONYXKEYS.NVP_TRYNEWDOT]: OnyxTypes.TryNewDot;

src/libs/ReportUtils.ts

@@ -737,7 +737,7 @@ Onyx.connect({
     },
 });
 
-let onboarding: OnyxEntry<Onboarding | []>;
+let onboarding: OnyxEntry<Onboarding>;
 Onyx.connect({
     key: ONYXKEYS.NVP_ONBOARDING,
     callback: (value) => (onboarding = value),
@@ -8354,8 +8354,8 @@ function shouldShowMerchantColumn(transactions: Transaction[]) {
  * only use the Concierge chat.
  */
 function isChatUsedForOnboarding(optionOrReport: OnyxEntry<Report> | OptionData): boolean {
-    // onboarding can be an array or an empty object for old accounts and accounts created from olddot
-    if (onboarding && !Array.isArray(onboarding) && !isEmptyObject(onboarding) && onboarding.chatReportID) {
+    // onboarding can be an empty object for old accounts and accounts created from olddot
+    if (onboarding && !isEmptyObject(onboarding) && onboarding.chatReportID) {
         return onboarding.chatReportID === optionOrReport?.reportID;
     }
 

src/libs/actions/Welcome/OnboardingFlow.ts

@@ -30,7 +30,7 @@ Onyx.connect({
         if (value === undefined) {
             return;
         }
-        onboardingValues = value as Onboarding;
+        onboardingValues = value;
     },
 });
 

src/libs/actions/Welcome/index.ts

@@ -13,7 +13,7 @@ import type TryNewDot from '@src/types/onyx/TryNewDot';
 import {isEmptyObject} from '@src/types/utils/EmptyObject';
 import * as OnboardingFlow from './OnboardingFlow';
 
-type OnboardingData = Onboarding | [] | undefined;
+type OnboardingData = Onboarding | undefined;
 
 let isLoadingReportData = true;
 let tryNewDotData: TryNewDot | undefined;
@@ -44,7 +44,7 @@ function onServerDataReady(): Promise<void> {
 let isOnboardingInProgress = false;
 function isOnboardingFlowCompleted({onCompleted, onNotCompleted, onCanceled}: HasCompletedOnboardingFlowProps) {
     isOnboardingFlowStatusKnownPromise.then(() => {
-        if (Array.isArray(onboarding) || isEmptyObject(onboarding) || onboarding?.hasCompletedGuidedSetupFlow === undefined) {
+        if (isEmptyObject(onboarding) || onboarding?.hasCompletedGuidedSetupFlow === undefined) {
             onCanceled?.();
             return;
         }

src/libs/onboardingSelectors.ts

@@ -11,7 +11,7 @@ import {isEmptyObject} from '@src/types/utils/EmptyObject';
  */
 function hasCompletedGuidedSetupFlowSelector(onboarding: OnyxValue<typeof ONYXKEYS.NVP_ONBOARDING>): boolean | undefined {
     // Onboarding is an empty object for old accounts and accounts migrated from OldDot
-    if (Array.isArray(onboarding) || isEmptyObject(onboarding)) {
+    if (isEmptyObject(onboarding)) {
         return true;
     }
 
@@ -49,7 +49,7 @@ function tryNewDotOnyxSelector(tryNewDotData: OnyxValue<typeof ONYXKEYS.NVP_TRYN
  * `false` means the user has not completed the NewDot onboarding flow
  */
 function hasSeenTourSelector(onboarding: OnyxValue<typeof ONYXKEYS.NVP_ONBOARDING>): boolean | undefined {
-    if (Array.isArray(onboarding) || isEmptyObject(onboarding)) {
+    if (isEmptyObject(onboarding)) {
         return false;
     }
 

tests/unit/OnboardingSelectorsTest.ts

@@ -7,11 +7,6 @@ describe('onboardingSelectors', () => {
     // Not all users have this NVP defined as we did not run a migration to backfill it for existing accounts, hence we need to make sure
     // the onboarding flow is only showed to the users with `hasCompletedGuidedSetupFlow` set to false
     describe('hasCompletedGuidedSetupFlowSelector', () => {
-        // It might be the case that backend returns an empty array if the NVP is not defined on this particular account
-        it('Should return true if onboarding NVP is an array', () => {
-            const onboarding = [] as OnyxValue<typeof ONYXKEYS.NVP_ONBOARDING>;
-            expect(hasCompletedGuidedSetupFlowSelector(onboarding)).toBe(true);
-        });
         it('Should return true if onboarding NVP is an empty object', () => {
             const onboarding = {} as OnyxValue<typeof ONYXKEYS.NVP_ONBOARDING>;
             expect(hasCompletedGuidedSetupFlowSelector(onboarding)).toBe(true);