Implement mobile network status banner

__mocks__/@stellar/stellar-sdk.ts

@@ -56,6 +56,9 @@ export const Networks = {
 };
 
 export const Server = jest.fn(() => ({
+  root: jest.fn(async () => ({
+    network_passphrase: 'Test SDF Network ; September 2015',
+  })),
   loadAccount: jest.fn(async () => ({ sequence: '0', balances: [] })),
   submitTransaction: jest.fn(async () => ({ hash: 'mockhash' })),
   payments: jest.fn(() => ({

__tests__/NetworkStatusBanner.test.tsx

@@ -2,12 +2,13 @@
  * NetworkStatusBanner – component tests
  *
  * Acceptance criteria covered:
- *  AC-NB1 – Banner is not rendered when networkErrorType is 'none'.
+ *  AC-NB1 – Banner is not rendered when state is 'online'.
  *  AC-NB2 – Banner is rendered for 'offline'.
  *  AC-NB3 – Banner is rendered for 'service-unavailable'.
- *  AC-NB4 – Retry button calls onRetry when tapped.
- *  AC-NB5 – Retry button is disabled while isRetrying is true.
- *  AC-NB6 – App does not crash when rendered with any valid props.
+ *  AC-NB4 – Banner is rendered for 'wrong-network'.
+ *  AC-NB5 – Retry button calls onRetry when tapped.
+ *  AC-NB6 – Retry button is disabled while isRetrying is true.
+ *  AC-NB7 – App does not crash when rendered with any valid state.
  */
 
 import React from 'react';
@@ -16,22 +17,19 @@ import { render, fireEvent } from '@testing-library/react-native';
 jest.mock('lucide-react-native', () => ({
   WifiOff: () => null,
   AlertTriangle: () => null,
+  CloudOff: () => null,
   RefreshCw: () => null,
 }));
 
 import { NetworkStatusBanner } from '../src/components/NetworkStatusBanner';
 
-const OFFLINE_MESSAGE = 'No internet connection. Check your network and try again.';
-const SERVICE_MESSAGE = 'Stellar Testnet services appear unavailable. Please try again shortly.';
+// ─── AC-NB1: Hidden when online ────────────────────────────────────────────
 
-// ─── AC-NB1: Hidden when no error ────────────────────────────────────────────
-
-describe('AC-NB1 – not rendered when networkErrorType is none', () => {
-  it('returns null when type is "none"', () => {
+describe('AC-NB1 – not rendered when state is online', () => {
+  it('returns null when state is "online"', () => {
     const { queryByTestId } = render(
       <NetworkStatusBanner
-        networkErrorType="none"
-        message=""
+        state="online"
         onRetry={jest.fn()}
       />
     );
@@ -42,44 +40,56 @@ describe('AC-NB1 – not rendered when networkErrorType is none', () => {
 // ─── AC-NB2: Offline banner ───────────────────────────────────────────────────
 
 describe('AC-NB2 – offline banner', () => {
-  it('renders the banner and message when type is "offline"', () => {
+  it('renders the banner and message when state is "offline"', () => {
     const { getByTestId, getByText } = render(
       <NetworkStatusBanner
-        networkErrorType="offline"
-        message={OFFLINE_MESSAGE}
+        state="offline"
         onRetry={jest.fn()}
       />
     );
     expect(getByTestId('network-status-banner')).toBeTruthy();
-    expect(getByText(OFFLINE_MESSAGE)).toBeTruthy();
+    expect(getByText(/You are offline/i)).toBeTruthy();
   });
 });
 
 // ─── AC-NB3: Service-unavailable banner ──────────────────────────────────────
 
 describe('AC-NB3 – service-unavailable banner', () => {
-  it('renders the banner and message when type is "service-unavailable"', () => {
+  it('renders the banner and message when state is "service-unavailable"', () => {
+    const { getByTestId, getByText } = render(
+      <NetworkStatusBanner
+        state="service-unavailable"
+        onRetry={jest.fn()}
+      />
+    );
+    expect(getByTestId('network-status-banner')).toBeTruthy();
+    expect(getByText(/Stellar network services are unavailable/i)).toBeTruthy();
+  });
+});
+
+// ─── AC-NB4: Wrong-network banner ────────────────────────────────────────────
+
+describe('AC-NB4 – wrong-network banner', () => {
+  it('renders the banner and message when state is "wrong-network"', () => {
     const { getByTestId, getByText } = render(
       <NetworkStatusBanner
-        networkErrorType="service-unavailable"
-        message={SERVICE_MESSAGE}
+        state="wrong-network"
         onRetry={jest.fn()}
       />
     );
     expect(getByTestId('network-status-banner')).toBeTruthy();
-    expect(getByText(SERVICE_MESSAGE)).toBeTruthy();
+    expect(getByText(/Connected to the wrong blockchain network/i)).toBeTruthy();
   });
 });
 
-// ─── AC-NB4: Retry callback ───────────────────────────────────────────────────
+// ─── AC-NB5: Retry callback ───────────────────────────────────────────────────
 
-describe('AC-NB4 – retry button calls onRetry', () => {
+describe('AC-NB5 – retry button calls onRetry', () => {
   it('calls onRetry when the retry button is pressed', () => {
     const onRetry = jest.fn();
     const { getByTestId } = render(
       <NetworkStatusBanner
-        networkErrorType="offline"
-        message={OFFLINE_MESSAGE}
+        state="offline"
         onRetry={onRetry}
       />
     );
@@ -88,35 +98,32 @@ describe('AC-NB4 – retry button calls onRetry', () => {
   });
 });
 
-// ─── AC-NB5: Retry disabled while retrying ───────────────────────────────────
+// ─── AC-NB6: Retry disabled while retrying ───────────────────────────────────
 
-describe('AC-NB5 – retry button is disabled while isRetrying', () => {
+describe('AC-NB6 – retry button is disabled while isRetrying', () => {
   it('renders retry button as disabled when isRetrying is true', () => {
     const onRetry = jest.fn();
     const { getByTestId } = render(
       <NetworkStatusBanner
-        networkErrorType="offline"
-        message={OFFLINE_MESSAGE}
+        state="offline"
         onRetry={onRetry}
         isRetrying={true}
       />
     );
     const retryBtn = getByTestId('network-status-retry');
-    // The button should not respond to presses when disabled
     fireEvent.press(retryBtn);
     expect(onRetry).not.toHaveBeenCalled();
   });
 });
 
-// ─── AC-NB6: Does not crash ───────────────────────────────────────────────────
+// ─── AC-NB7: Does not crash ───────────────────────────────────────────────────
 
-describe('AC-NB6 – does not crash with any valid props', () => {
+describe('AC-NB7 – does not crash with any valid state', () => {
   it('renders without crashing for "offline"', () => {
     expect(() =>
       render(
         <NetworkStatusBanner
-          networkErrorType="offline"
-          message={OFFLINE_MESSAGE}
+          state="offline"
           onRetry={jest.fn()}
         />
       )
@@ -127,20 +134,29 @@ describe('AC-NB6 – does not crash with any valid props', () => {
     expect(() =>
       render(
         <NetworkStatusBanner
-          networkErrorType="service-unavailable"
-          message={SERVICE_MESSAGE}
+          state="service-unavailable"
+          onRetry={jest.fn()}
+        />
+      )
+    ).not.toThrow();
+  });
+
+  it('renders without crashing for "wrong-network"', () => {
+    expect(() =>
+      render(
+        <NetworkStatusBanner
+          state="wrong-network"
           onRetry={jest.fn()}
         />
       )
     ).not.toThrow();
   });
 
-  it('renders without crashing for "none"', () => {
+  it('renders without crashing for "online"', () => {
     expect(() =>
       render(
         <NetworkStatusBanner
-          networkErrorType="none"
-          message=""
+          state="online"
           onRetry={jest.fn()}
         />
       )

app/(tabs)/_layout.tsx

@@ -3,15 +3,15 @@ import { Tabs } from "expo-router";
 import { Home, History, PiggyBank, Settings } from "lucide-react-native";
 import { useTheme } from "../../src/hooks/useTheme";
 import { useNetworkState } from "../../src/hooks/useNetworkState";
-import { NetworkStateBanner } from "../../src/components/NetworkStateBanner";
+import { NetworkStatusBanner } from "../../src/components/NetworkStatusBanner";
 
 export default function TabsLayout() {
   const { colors } = useTheme();
   const { state: networkState, retry } = useNetworkState();
 
   return (
     <View style={{ flex: 1, backgroundColor: colors.background }}>
-      <NetworkStateBanner state={networkState} onRetry={retry} />
+      <NetworkStatusBanner state={networkState} onRetry={retry} />
       <Tabs
         screenOptions={{
           headerStyle: {
@@ -36,14 +36,14 @@ export default function TabsLayout() {
           name="index"
           options={{
             title: "Home",
-            tabBarIcon: ({ color, size }) => <Home color={color} size={size} />,
+            tabBarIcon: ({ color, size }: { color: string; size: number }) => <Home color={color} size={size} />,
           }}
         />
         <Tabs.Screen
           name="history"
           options={{
             title: "Activity",
-            tabBarIcon: ({ color, size }) => (
+            tabBarIcon: ({ color, size }: { color: string; size: number }) => (
               <History color={color} size={size} />
             ),
           }}
@@ -52,7 +52,7 @@ export default function TabsLayout() {
           name="vault"
           options={{
             title: "Vault",
-            tabBarIcon: ({ color, size }) => (
+            tabBarIcon: ({ color, size }: { color: string; size: number }) => (
               <PiggyBank color={color} size={size} />
             ),
           }}
@@ -61,7 +61,7 @@ export default function TabsLayout() {
           name="settings"
           options={{
             title: "Settings",
-            tabBarIcon: ({ color, size }) => (
+            tabBarIcon: ({ color, size }: { color: string; size: number }) => (
               <Settings color={color} size={size} />
             ),
           }}

app/(tabs)/history.tsx

@@ -15,7 +15,7 @@ import { useWalletStore, TransactionRecord } from '../../src/store/walletStore';
 import { RADIUS, SIZES, ThemeColors } from '../../src/constants/theme';
 import { useTheme } from '../../src/hooks/useTheme';
 import { TransactionListItem } from '../../src/components/TransactionListItem';
-import { NetworkStateBanner } from '../../src/components/NetworkStateBanner';
+import { NetworkStatusBanner } from '../../src/components/NetworkStatusBanner';
 import { EmptyState } from '../../src/components/EmptyState';
 import { WalletEmptyState } from '../../src/components/WalletEmptyState';
 import { LoadingState } from '../../src/components/LoadingState';
@@ -40,13 +40,19 @@ type FilterType = (typeof FILTERS)[number]['value'];
  * Footer rendered below the list while loading more items or when the
  * end-of-list has been reached.
  */
-const ListFooter: React.FC<{
+const ListFooter = ({
+  isLoadingMore,
+  hasMoreTransactions,
+  hasTransactions,
+  colors,
+  styles,
+}: {
   isLoadingMore: boolean;
   hasMoreTransactions: boolean;
   hasTransactions: boolean;
   colors: ThemeColors;
   styles: ReturnType<typeof createStyles>;
-}> = ({ isLoadingMore, hasMoreTransactions, hasTransactions, colors, styles }) => {
+}) => {
   if (!hasTransactions) return null;
 
   if (isLoadingMore) {
@@ -74,11 +80,15 @@ const ListFooter: React.FC<{
 /**
  * Shown when there are no transactions and the screen is not loading.
  */
-const ActivityEmptyState: React.FC<{
+const ActivityEmptyState = ({
+  colors,
+  styles,
+  onReceivePress,
+}: {
   colors: ThemeColors;
   styles: ReturnType<typeof createStyles>;
   onReceivePress: () => void;
-}> = ({ colors, styles, onReceivePress }) => (
+}) => (
   <View style={styles.emptyState} testID="empty-state">
     <EmptyState
       icon={<Clock color={colors.textMuted} size={48} />}
@@ -135,7 +145,7 @@ export default function HistoryScreen() {
   }
 
   const filteredTransactions = useMemo(() => {
-    return transactions.filter(tx => {
+    return transactions.filter((tx: TransactionRecord) => {
       if (filter === 'all') return true;
 
       const isSent = tx.from === publicKey;
@@ -165,7 +175,7 @@ export default function HistoryScreen() {
         transaction={item}
         currentPublicKey={publicKey}
         variant="card"
-        onPress={(tx) => router.push(`/transaction/${tx.id}`)}
+        onPress={(tx: TransactionRecord) => router.push(`/transaction/${tx.id}`)}
       />
     ),
     [publicKey, router]
@@ -233,7 +243,7 @@ export default function HistoryScreen() {
         onEndReachedThreshold={0.2}
         ListHeaderComponent={
           <>
-            <NetworkStateBanner
+            <NetworkStatusBanner
               state={networkState}
               onRetry={() => { refreshWalletData(); retry(); }}
               isRetrying={isLoading}
@@ -347,7 +357,7 @@ const createStyles = (colors: ThemeColors) => StyleSheet.create({
   filterChip: {
     paddingHorizontal: SIZES.md,
     paddingVertical: SIZES.sm,
-    borderRadius: RADIUS.full,
+    borderRadius: RADIUS.round,
     borderWidth: 1,
     borderColor: colors.border,
     backgroundColor: colors.surface,

app/(tabs)/index.tsx

@@ -7,7 +7,7 @@ import { useTheme } from '../../src/hooks/useTheme';
 import { Button } from '../../src/components/Button';
 import { FundButton } from '../../src/components/FundButton';
 import { TransactionListItem } from '../../src/components/TransactionListItem';
-import { NetworkStateBanner } from '../../src/components/NetworkStateBanner';
+import { NetworkStatusBanner } from '../../src/components/NetworkStatusBanner';
 import { WalletEmptyState } from '../../src/components/WalletEmptyState';
 import { BalanceDisplay } from '../../src/components/BalanceDisplay';
 import { FundingStatusBanner } from '../../src/components/FundingStatusBanner';
@@ -80,7 +80,7 @@ export default function HomeScreen() {
           />
         }
       >
-        <NetworkStateBanner
+        <NetworkStatusBanner
           state={networkState}
           onRetry={handleRetry}
           isRetrying={isLoading}

app/(tabs)/vault.tsx

@@ -27,9 +27,10 @@ import AsyncStorage from '@react-native-async-storage/async-storage';
 import { VaultReceiptModal } from "../../src/components/VaultReceiptModal";
 import { isActionSupported, getActionUnsupportedReason, getActionUnsupportedDetail } from '../../src/utils/vaultCapabilities';
 import { useNetworkState } from '../../src/hooks/useNetworkState';
-import { NetworkStateBanner } from '../../src/components/NetworkStateBanner';
+import { NetworkStatusBanner } from '../../src/components/NetworkStatusBanner';
 import { WithdrawalPreview } from '../../src/features/vault/WithdrawalPreview';
 import { DepositPreview } from '../../src/features/vault/DepositPreview';
+import type { VaultLock } from '../../src/types';
 
 const LOCK_PERIOD_SECONDS = 30 * 24 * 60 * 60; // 30 days
 const VAULT_INTRO_SEEN_KEY = '@pocketpay_vault_intro_seen';
@@ -45,11 +46,11 @@ export default function VaultScreen() {
   const { state: networkState, disableWriteActions: networkDisabled, retry: retryNetwork } = useNetworkState({ error: walletError });
   const {
     balance,
-    locks,
+    locks: _unused_locks,
     isConfigured,
     contractId,
     isLoadingBalance,
-    isLoadingLocks,
+    isLoadingLocks: _unused_isLoadingLocks,
     isSubmitting,
     balanceError,
     vaultError,
@@ -276,7 +277,7 @@ export default function VaultScreen() {
         onClose={() => setReceiptVisible(false)}
       />
 
-      <NetworkStateBanner
+      <NetworkStatusBanner
         state={networkState}
         onRetry={() => {
           retryNetwork();