Pre-resubmission cleanup: privacy fix, auth hardening, dead code removal

__tests__/share-waitlist.test.js

@@ -7,23 +7,33 @@ const screenSource = readFileSync(
   "utf8",
 );
 
-test("renders the waitlist capture in both former CTA locations", () => {
-  assert.equal((screenSource.match(/<WaitlistCapture/g) ?? []).length, 2);
+// These are source-text checks with known blind spots: they will not catch a
+// semantically equivalent reintroduction under different JSX or import syntax.
+// Real rendered-output assertions would require adding @testing-library/react-native
+// or react-test-renderer as a new dependency in a separate approved task.
+test("does not render public share waitlist capture CTAs", () => {
+  assert.doesNotMatch(screenSource, /<WaitlistCapture/);
+  assert.doesNotMatch(screenSource, /function WaitlistCapture/);
   assert.doesNotMatch(screenSource, /import \{ Link,/);
   assert.doesNotMatch(screenSource, /href="\/"/);
-  assert.match(screenSource, /Join the App Store waitlist/);
 });
 
-test("captures an email and renders friendly terminal states", () => {
-  assert.match(screenSource, /joinWaitlist\(email\)/);
-  assert.match(screenSource, /inputMode="email"/);
-  assert.match(screenSource, /keyboardType="email-address"/);
-  assert.match(screenSource, /textContentType="emailAddress"/);
-  assert.match(
+// These are source-text checks with known blind spots: they will not catch a
+// semantically equivalent reintroduction under different JSX or import syntax.
+// Real rendered-output assertions would require adding @testing-library/react-native
+// or react-test-renderer as a new dependency in a separate approved task.
+test("does not collect anonymous visitor email addresses", () => {
+  assert.doesNotMatch(screenSource, /joinWaitlist/);
+  assert.doesNotMatch(screenSource, /TextInput/);
+  assert.doesNotMatch(screenSource, /inputMode="email"/);
+  assert.doesNotMatch(screenSource, /keyboardType="email-address"/);
+  assert.doesNotMatch(screenSource, /textContentType="emailAddress"/);
+  assert.doesNotMatch(screenSource, /Join the App Store waitlist/);
+  assert.doesNotMatch(
     screenSource,
     /You're on the list — we'll email you when BestList is live\./,
   );
-  assert.match(
+  assert.doesNotMatch(
     screenSource,
     /You're already on the list — we'll email you when BestList is live\./,
   );

app.json

@@ -47,6 +47,7 @@
           "backgroundColor": "#F5F0E8"
         }
       ],
+      "expo-secure-store",
       [
         "expo-build-properties",
         {

app/_layout.tsx

@@ -26,7 +26,7 @@ Sentry.init({
   // Configure Session Replay
   replaysSessionSampleRate: 0.1,
   replaysOnErrorSampleRate: 1,
-  integrations: [Sentry.mobileReplayIntegration(), Sentry.feedbackIntegration()],
+  integrations: [Sentry.mobileReplayIntegration()],
 
   // uncomment the line below to enable Spotlight (https://spotlightjs.com)
   // spotlight: __DEV__,

app/share/[id].tsx

@@ -9,7 +9,6 @@ import {
   ScrollView,
   Share,
   Text,
-  TextInput,
   View,
   type ImageSourcePropType,
 } from "react-native";
@@ -20,7 +19,6 @@ import {
   getPublicCategoryByShareId,
   getPublicCategoryOwnerUsername,
   getPublicEntries,
-  joinWaitlist,
 } from "@/lib/api";
 import { getCategoryShareUrl } from "@/lib/category-sharing";
 import { calculateOverallScore, sortEntries } from "@/lib/entry-score";
@@ -166,11 +164,6 @@ export default function ShareListScreen() {
             <Text className="text-center font-body text-[15px] leading-6 text-secondary">
               This shared BestList is not available.
             </Text>
-
-            <WaitlistCapture
-              buttonClassName="mt-4 h-12 items-center justify-center rounded-full bg-accent px-6 shadow-card"
-              labelClassName="font-body text-[16px] font-bold text-white"
-            />
           </View>
         </View>
       </SafeAreaView>
@@ -235,10 +228,6 @@ export default function ShareListScreen() {
               <Text className="text-card-title text-primary">
                 Best<Text className="text-accent">List</Text>
               </Text>
-              <WaitlistCapture
-                buttonClassName="h-11 items-center justify-center rounded-full bg-accent px-6 shadow-card"
-                labelClassName="text-label uppercase text-white"
-              />
             </View>
           </View>
         </ScrollView>
@@ -266,112 +255,6 @@ function SharedListLogo() {
   );
 }
 
-type WaitlistCaptureProps = {
-  buttonClassName: string;
-  labelClassName: string;
-};
-
-type WaitlistState = "idle" | "form" | "joined" | "already_joined";
-
-function WaitlistCapture({
-  buttonClassName,
-  labelClassName,
-}: WaitlistCaptureProps) {
-  const [email, setEmail] = useState("");
-  const [state, setState] = useState<WaitlistState>("idle");
-  const [isSubmitting, setIsSubmitting] = useState(false);
-  const [errorMessage, setErrorMessage] = useState<string | null>(null);
-
-  async function submitWaitlist() {
-    const normalizedEmail = email.trim().toLowerCase();
-    const isValidEmail = /^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(normalizedEmail);
-
-    if (!isValidEmail) {
-      setErrorMessage("Enter a valid email address.");
-      return;
-    }
-
-    setErrorMessage(null);
-    setIsSubmitting(true);
-
-    try {
-      const result = await joinWaitlist(email);
-      setState(result);
-    } catch (error: unknown) {
-      console.error(
-        "Failed to join waitlist:",
-        error instanceof Error ? error.message : String(error),
-      );
-      setErrorMessage("We couldn't save your email. Please try again.");
-    } finally {
-      setIsSubmitting(false);
-    }
-  }
-
-  if (state === "joined") {
-    return (
-      <Text className="max-w-sm text-center font-body text-[14px] leading-5 text-accent">
-        {"You're on the list — we'll email you when BestList is live."}
-      </Text>
-    );
-  }
-
-  if (state === "already_joined") {
-    return (
-      <Text className="max-w-sm text-center font-body text-[14px] leading-5 text-accent">
-        {"You're already on the list — we'll email you when BestList is live."}
-      </Text>
-    );
-  }
-
-  if (state === "idle") {
-    return (
-      <Pressable
-        accessibilityRole="button"
-        className={buttonClassName}
-        onPress={() => setState("form")}
-      >
-        <Text className={labelClassName}>Join the App Store waitlist</Text>
-      </Pressable>
-    );
-  }
-
-  return (
-    <View className="w-full max-w-sm gap-2">
-      <TextInput
-        autoCapitalize="none"
-        autoComplete="email"
-        className="h-12 rounded-full border border-subtle bg-white px-5 font-body text-[16px] text-primary"
-        editable={!isSubmitting}
-        inputMode="email"
-        keyboardType="email-address"
-        onChangeText={setEmail}
-        onSubmitEditing={() => void submitWaitlist()}
-        placeholder="you@example.com"
-        placeholderTextColor="#78716C"
-        returnKeyType="done"
-        textContentType="emailAddress"
-        value={email}
-      />
-      {errorMessage ? (
-        <Text className="text-center font-body text-[13px] leading-5 text-red-700">
-          {errorMessage}
-        </Text>
-      ) : null}
-      <Pressable
-        accessibilityRole="button"
-        className="h-11 items-center justify-center rounded-full bg-accent px-6 shadow-card disabled:opacity-60"
-        disabled={isSubmitting}
-        onPress={() => void submitWaitlist()}
-      >
-        <Text className="text-label uppercase text-white">
-          {isSubmitting ? "Joining…" : "Join waitlist"}
-        </Text>
-      </Pressable>
-    </View>
-  );
-}
-
 type SharedEntryCardProps = {
   entry: Entry;
   rank: number;

components/home-screen.tsx

@@ -53,9 +53,9 @@ export function HomeScreen() {
           {
             text: "Create account",
             onPress: () => {
-              // Temporary placeholder: plain sign-up creates a separate account today
-              // and does not carry over the guest's existing lists. Real
-              // guest-to-account linking is scope 3.
+              // Email sign-up links the current guest user/data via linkGuestEmail.
+              // Google and Apple guest linking are not built yet; AuthScreen blocks
+              // those guest buttons with a "use email for now" message.
               router.push(signUpRoute);
             },
           },

lib/api.ts

@@ -49,8 +49,6 @@ type UpdateEntryPayload = Omit<
   "id" | "categoryId" | "createdAt" | "overallScore"
 >;
 
-type WaitlistJoinResult = "joined" | "already_joined";
-
 const categoryColumns =
   "id,name,cover_photo,tone,is_shared,share_id,created_at";
 const entryColumns =
@@ -328,34 +326,6 @@ export async function getPublicCategoryOwnerUsername(
   return data;
 }
 
-/**
- * Adds an email address to the public share waitlist.
- *
- * @param email - The email address to register.
- * @returns Whether the email joined or was already registered.
- */
-export async function joinWaitlist(
-  email: string,
-): Promise<WaitlistJoinResult> {
-  const normalizedEmail = email.trim().toLowerCase();
-  const { error } = await getPublicSupabaseClient()
-    .from("waitlist_signups")
-    .insert({
-      email: normalizedEmail,
-      source: "public_share",
-    });
-
-  if (error?.code === "23505") {
-    return "already_joined";
-  }
-
-  if (error) {
-    throw error;
-  }
-
-  return "joined";
-}
-
 /**
  * Fetches entries for a publicly shared category.
  *

lib/supabase.ts

@@ -1,11 +1,83 @@
 import "react-native-url-polyfill/auto";
 
+import {
+  createClient,
+  processLock,
+  type SupportedStorage,
+} from "@supabase/supabase-js";
 import AsyncStorage from "@react-native-async-storage/async-storage";
-import { createClient, processLock } from "@supabase/supabase-js";
+import * as SecureStore from "expo-secure-store";
 import { Platform } from "react-native";
 
 const supabaseUrl = process.env.EXPO_PUBLIC_SUPABASE_URL;
 const supabaseAnonKey = process.env.EXPO_PUBLIC_SUPABASE_ANON_KEY;
+const secureStoreValueLimitBytes = 2048;
+
+/**
+ * Stores Supabase auth sessions in SecureStore and migrates existing
+ * AsyncStorage sessions into SecureStore the first time they are read.
+ */
+const secureStoreAdapter: SupportedStorage = {
+  getItem: async (key: string) => {
+    const secureValue = await SecureStore.getItemAsync(key);
+
+    if (secureValue != null) {
+      return secureValue;
+    }
+
+    const legacyValue = await AsyncStorage.getItem(key);
+
+    if (legacyValue == null) {
+      return legacyValue;
+    }
+
+    await SecureStore.setItemAsync(key, legacyValue);
+    await AsyncStorage.removeItem(key);
+
+    return legacyValue;
+  },
+  setItem: (key: string, value: string) => {
+    if (isOverSecureStoreValueLimit(value)) {
+      console.warn(
+        "Supabase auth session is larger than SecureStore's 2048-byte Android value limit.",
+      );
+    }
+
+    return SecureStore.setItemAsync(key, value);
+  },
+  removeItem: (key: string) => SecureStore.deleteItemAsync(key),
+};
+
+function isOverSecureStoreValueLimit(value: string) {
+  let bytes = 0;
+
+  for (let index = 0; index < value.length; index++) {
+    const codePoint = value.charCodeAt(index);
+
+    if (codePoint >= 0xd800 && codePoint < 0xe000) {
+      const nextCodePoint = value.charCodeAt(index + 1);
+
+      if (
+        codePoint < 0xdc00 &&
+        nextCodePoint >= 0xdc00 &&
+        nextCodePoint < 0xe000
+      ) {
+        bytes += 4;
+        index++;
+      } else {
+        bytes += 3;
+      }
+    } else {
+      bytes += codePoint < 0x80 ? 1 : codePoint < 0x800 ? 2 : 3;
+    }
+
+    if (bytes > secureStoreValueLimitBytes) {
+      return true;
+    }
+  }
+
+  return false;
+}
 
 export const isSupabaseConfigured = !!(supabaseUrl && supabaseAnonKey);
 
@@ -22,7 +94,7 @@ export function assertSupabaseConfigured() {
 
 export const supabase = createClient(supabaseUrl ?? "", supabaseAnonKey ?? "", {
   auth: {
-    ...(Platform.OS !== "web" ? { storage: AsyncStorage } : {}),
+    ...(Platform.OS !== "web" ? { storage: secureStoreAdapter } : {}),
     autoRefreshToken: true,
     persistSession: true,
     detectSessionInUrl: false,