fix(mobile): stop guest warning spam

apps/mobile/app/_layout.tsx

@@ -21,7 +21,7 @@ import {
     handleNotificationResponse,
 } from "../src/lib/notifications";
 
-import React, { useEffect, useRef, useState } from "react";
+import React, { useEffect, useRef } from "react";
 import { Platform, View, AppState, AppStateStatus, Modal, Text, StyleSheet, Pressable, TouchableOpacity } from "react-native";
 
 // Suppress useLayoutEffect warning on server-side rendering
@@ -51,7 +51,7 @@ import * as Linking from "expo-linking";
 import { useAuthStore } from "../src/store";
 import { authClient } from "../src/lib/authClient";
 import { colors, spacing, radius, typography } from "../src/theme";
-import { hasSeenGuestAccountWarning, markGuestAccountWarningSeen } from "../src/lib/guestAccountWarningSeen";
+import { useGuestAccountWarning } from "../src/hooks/useGuestAccountWarning";
 import { parseInviteLinkCode } from "../src/lib/inviteLink";
 import { stashPendingInviteCode } from "../src/lib/pendingInviteCode";
 import { needsOnboarding } from "../src/constants/onboarding";
@@ -59,18 +59,17 @@ import { needsOnboarding } from "../src/constants/onboarding";
 const queryClient = new QueryClient();
 
 export default function RootLayout() {
-    const { fetchUser, setUser, isAuthenticated, isAnonymous } = useAuthStore();
+    const { fetchUser, setUser, user, isAuthenticated, isAnonymous } = useAuthStore();
     const pathname = usePathname();
     const appState = useRef(AppState.currentState);
     const analyticsInitialized = useRef(false);
 
-    const [showGuestWarning, setShowGuestWarning] = useState(false);
+    const { visible: showGuestWarning, dismiss: dismissGuestWarning } = useGuestAccountWarning({
-    const [checkingGuestWarning, setCheckingGuestWarning] = useState(false);
+        isAuthenticated,
-
+        isAnonymous,
-    const dismissGuestWarning = async () => {
+        userId: user?.id,
-        await markGuestAccountWarningSeen();
+        pathname,
-        setShowGuestWarning(false);
+    });
-    };
 
 
     // Initialize analytics after native modules are ready
@@ -90,22 +89,6 @@ export default function RootLayout() {
         }
     }, [pathname]);
 
-    // Warn guest users (first time only) that accounts are not recoverable
-    useEffect(() => {
-        if (!isAuthenticated || !isAnonymous) return;
-        if (checkingGuestWarning) return;
-        if (pathname?.startsWith("/(auth)")) return;
-
-        setCheckingGuestWarning(true);
-        hasSeenGuestAccountWarning()
-            .then((seen) => {
-                if (!seen) {
-                    setShowGuestWarning(true);
-                }
-            })
-            .finally(() => setCheckingGuestWarning(false));
-    }, [isAuthenticated, isAnonymous, pathname, checkingGuestWarning]);
-
     // Track warm starts when app comes back from background
     useEffect(() => {
         const subscription = AppState.addEventListener("change", (nextAppState: AppStateStatus) => {
@@ -315,8 +298,7 @@ export default function RootLayout() {
                                 <TouchableOpacity
                                     style={styles.guestWarningPrimary}
                                     onPress={async () => {
-                                        await markGuestAccountWarningSeen();
+                                        await dismissGuestWarning();
-                                        setShowGuestWarning(false);
                                         router.push("/(app)/settings/save-account" as any);
                                     }}
                                     activeOpacity={0.8}
@@ -325,10 +307,7 @@ export default function RootLayout() {
                                 </TouchableOpacity>
                                 <TouchableOpacity
                                     style={styles.guestWarningSecondary}
-                                    onPress={async () => {
+                                    onPress={dismissGuestWarning}
-                                        await markGuestAccountWarningSeen();
-                                        setShowGuestWarning(false);
-                                    }}
                                     activeOpacity={0.8}
                                 >
                                     <Text style={styles.guestWarningSecondaryText}>Not now</Text>

apps/mobile/src/__tests__/hooks/useGuestAccountWarning.test.ts

@@ -0,0 +1,68 @@
+import { act, renderHook, waitFor } from "@testing-library/react-native";
+import { hasSeenGuestAccountWarning, markGuestAccountWarningSeen } from "@/lib/guestAccountWarningSeen";
+import { useGuestAccountWarning } from "@/hooks/useGuestAccountWarning";
+
+jest.mock("@/lib/guestAccountWarningSeen", () => ({
+    hasSeenGuestAccountWarning: jest.fn(),
+    markGuestAccountWarningSeen: jest.fn(),
+}));
+
+const options = {
+    isAuthenticated: true,
+    isAnonymous: true,
+    userId: "guest-1",
+    pathname: "/(app)/pairing",
+};
+
+describe("useGuestAccountWarning", () => {
+    beforeEach(() => {
+        jest.mocked(hasSeenGuestAccountWarning).mockReset();
+        jest.mocked(markGuestAccountWarningSeen).mockReset();
+    });
+
+    it("does not reopen after a dismissal while the durable write is pending", async () => {
+        let finishMarking: (() => void) | undefined;
+        jest.mocked(hasSeenGuestAccountWarning).mockResolvedValue(false);
+        jest.mocked(markGuestAccountWarningSeen).mockImplementation(() => new Promise<void>((resolve) => {
+            finishMarking = resolve;
+        }));
+
+        const { result, rerender } = renderHook((props: typeof options) => useGuestAccountWarning(props), { initialProps: options });
+
+        await waitFor(() => expect(result.current.visible).toBe(true));
+
+        let dismissal: Promise<void> | undefined;
+        act(() => {
+            dismissal = result.current.dismiss();
+        });
+
+        expect(result.current.visible).toBe(false);
+
+        rerender({ ...options, pathname: "/(app)/settings" });
+        expect(result.current.visible).toBe(false);
+        expect(hasSeenGuestAccountWarning).toHaveBeenCalledTimes(1);
+
+        finishMarking?.();
+        await act(async () => {
+            await dismissal;
+        });
+    });
+
+    it("checks once per anonymous account and can warn a later guest account", async () => {
+        jest.mocked(hasSeenGuestAccountWarning).mockResolvedValue(false);
+
+        const { result, rerender } = renderHook((props: typeof options) => useGuestAccountWarning(props), { initialProps: options });
+
+        await waitFor(() => expect(result.current.visible).toBe(true));
+        rerender({ ...options, pathname: "/(app)/settings" });
+        expect(hasSeenGuestAccountWarning).toHaveBeenCalledTimes(1);
+
+        await act(async () => {
+            await result.current.dismiss();
+        });
+
+        rerender({ ...options, userId: "guest-2" });
+        await waitFor(() => expect(hasSeenGuestAccountWarning).toHaveBeenCalledWith("guest-2"));
+        await waitFor(() => expect(result.current.visible).toBe(true));
+    });
+});

apps/mobile/src/__tests__/lib/guestAccountWarningSeen.test.ts

@@ -0,0 +1,20 @@
+import { hasSeenGuestAccountWarning, markGuestAccountWarningSeen } from "@/lib/guestAccountWarningSeen";
+import AsyncStorage from "@react-native-async-storage/async-storage";
+
+describe("guestAccountWarningSeen", () => {
+    beforeEach(() => {
+        return AsyncStorage.clear();
+    });
+
+    it("persists a dismissal for that anonymous account", async () => {
+        await markGuestAccountWarningSeen("guest-1");
+
+        await expect(hasSeenGuestAccountWarning("guest-1")).resolves.toBe(true);
+    });
+
+    it("does not suppress the recovery warning for a later guest account", async () => {
+        await markGuestAccountWarningSeen("guest-1");
+
+        await expect(hasSeenGuestAccountWarning("guest-2")).resolves.toBe(false);
+    });
+});

apps/mobile/src/hooks/useGuestAccountWarning.ts

@@ -0,0 +1,68 @@
+import { useCallback, useEffect, useRef, useState } from "react";
+import { hasSeenGuestAccountWarning, markGuestAccountWarningSeen } from "../lib/guestAccountWarningSeen";
+
+type GuestAccountWarningOptions = {
+    isAuthenticated: boolean;
+    isAnonymous: boolean;
+    userId: string | null | undefined;
+    pathname: string | null;
+};
+
+/**
+ * Shows the account recovery warning at most once for each anonymous account
+ * during a mounted app session. A dismissal is applied in memory before the
+ * durable write completes, so a slow storage operation cannot reopen it.
+ */
+export function useGuestAccountWarning({
+    isAuthenticated,
+    isAnonymous,
+    userId,
+    pathname,
+}: GuestAccountWarningOptions) {
+    const [visible, setVisible] = useState(false);
+    const checkedUserIds = useRef(new Set<string>());
+    const dismissedUserIds = useRef(new Set<string>());
+
+    const isEligible = Boolean(
+        isAuthenticated
+        && isAnonymous
+        && userId
+        && !pathname?.startsWith("/(auth)"),
+    );
+
+    useEffect(() => {
+        if (!isEligible || !userId) {
+            return;
+        }
+
+        if (checkedUserIds.current.has(userId) || dismissedUserIds.current.has(userId)) {
+            return;
+        }
+
+        checkedUserIds.current.add(userId);
+        let isCurrent = true;
+
+        void hasSeenGuestAccountWarning(userId).then((seen) => {
+            if (isCurrent && !seen && !dismissedUserIds.current.has(userId)) {
+                setVisible(true);
+            }
+        });
+
+        return () => {
+            isCurrent = false;
+        };
+    }, [isEligible, userId]);
+
+    const dismiss = useCallback(async () => {
+        if (!userId) {
+            setVisible(false);
+            return;
+        }
+
+        dismissedUserIds.current.add(userId);
+        setVisible(false);
+        await markGuestAccountWarningSeen(userId);
+    }, [userId]);
+
+    return { visible: isEligible && visible, dismiss };
+}

apps/mobile/src/lib/guestAccountWarningSeen.ts

@@ -1,47 +1,31 @@
-import * as SecureStore from "expo-secure-store";
+import AsyncStorage from "@react-native-async-storage/async-storage";
-import { Platform } from "react-native";
 
-const STORAGE_KEY = "guest_account_recovery_warning_seen";
+const STORAGE_KEY_PREFIX = "guest_account_recovery_warning_seen";
 
-async function getStorage(): Promise<boolean> {
+const buildKey = (userId: string): string => `${STORAGE_KEY_PREFIX}_${userId}`;
+
+async function getStorage(key: string): Promise<boolean> {
     try {
-        let data: string | null = null;
+        return (await AsyncStorage.getItem(key)) === "true";
-
-        if (Platform.OS === "web") {
-            if (typeof window !== "undefined" && typeof window.localStorage !== "undefined") {
-                data = window.localStorage.getItem(STORAGE_KEY);
-            }
-        } else {
-            data = await SecureStore.getItemAsync(STORAGE_KEY);
-        }
-
-        return data === "true";
     } catch (error) {
         console.error("Error reading guest warning state:", error);
     }
     return false;
 }
 
-async function setStorage(seen: boolean): Promise<void> {
+async function setStorage(key: string, seen: boolean): Promise<void> {
     try {
-        const data = seen ? "true" : "false";
+        await AsyncStorage.setItem(key, seen ? "true" : "false");
-
-        if (Platform.OS === "web") {
-            if (typeof window !== "undefined" && typeof window.localStorage !== "undefined") {
-                window.localStorage.setItem(STORAGE_KEY, data);
-            }
-        } else {
-            await SecureStore.setItemAsync(STORAGE_KEY, data);
-        }
     } catch (error) {
         console.error("Error saving guest warning state:", error);
     }
 }
 
-export async function hasSeenGuestAccountWarning(): Promise<boolean> {
+/** The recovery warning is shown at most once for each anonymous account. */
-    return getStorage();
+export async function hasSeenGuestAccountWarning(userId: string): Promise<boolean> {
+    return getStorage(buildKey(userId));
 }
 
-export async function markGuestAccountWarningSeen(): Promise<void> {
+export async function markGuestAccountWarningSeen(userId: string): Promise<void> {
-    await setStorage(true);
+    await setStorage(buildKey(userId), true);
 }