fix(app,app-check,auth): detect UIScene lifecycle in iOS config plugins

packages/app-check/plugin/__tests__/__snapshots__/iosPlugin.test.ts.snap

@@ -481,3 +481,55 @@ exports[`Config Plugin iOS Tests works with AppDelegate.mm (RN 0.68+) 1`] = `
 @end
 "
 `;
+
+exports[`Config Plugin iOS Tests works with a UIScene lifecycle Swift AppDelegate (SDK 58+) 1`] = `
+"internal import Expo
+import React
+import ReactAppDependencyProvider
+
+@main
+class AppDelegate: ExpoAppDelegate, ExpoReactNativeFactoryProvider {
+  var window: UIWindow?
+
+  var reactNativeDelegate: ExpoReactNativeFactoryDelegate?
+  var reactNativeFactory: RCTReactNativeFactory?
+
+  public override func application(
+    _ application: UIApplication,
+    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? = nil
+  ) -> Bool {
+// @generated begin @react-native-firebase/app-check - expo prebuild (DO NOT MODIFY) sync-cf2eb2cc4ab0c44de03d7c0dddc7165fa89d986f
+RNFBAppCheckModule.sharedInstance()
+    FirebaseApp.configure()
+// @generated end @react-native-firebase/app-check
+    let delegate = ReactNativeDelegate()
+    let factory = ExpoReactNativeFactory(delegate: delegate)
+    delegate.dependencyProvider = RCTAppDependencyProvider()
+
+    reactNativeDelegate = delegate
+    reactNativeFactory = factory
+
+    // The window is created and React Native is started by \`SceneDelegate\` under the
+    // scene-based life cycle (required by the iOS 27 SDK).
+    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
+  }
+}
+
+class ReactNativeDelegate: ExpoReactNativeFactoryDelegate {
+  // Extension point for config-plugins
+
+  override func sourceURL(for bridge: RCTBridge) -> URL? {
+    // needed to return the correct URL for expo-dev-client.
+    bridge.bundleURL ?? bundleURL()
+  }
+
+  override func bundleURL() -> URL? {
+#if DEBUG
+    return RCTBundleURLProvider.sharedSettings().jsBundleURL(forBundleRoot: ".expo/.virtual-metro-entry")
+#else
+    return Bundle.main.url(forResource: "main", withExtension: "jsbundle")
+#endif
+  }
+}
+"
+`;

packages/app-check/plugin/__tests__/fixtures/AppDelegate_sdk58.swift

@@ -0,0 +1,44 @@
+internal import Expo
+import React
+import ReactAppDependencyProvider
+
+@main
+class AppDelegate: ExpoAppDelegate, ExpoReactNativeFactoryProvider {
+  var window: UIWindow?
+
+  var reactNativeDelegate: ExpoReactNativeFactoryDelegate?
+  var reactNativeFactory: RCTReactNativeFactory?
+
+  public override func application(
+    _ application: UIApplication,
+    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? = nil
+  ) -> Bool {
+    let delegate = ReactNativeDelegate()
+    let factory = ExpoReactNativeFactory(delegate: delegate)
+    delegate.dependencyProvider = RCTAppDependencyProvider()
+
+    reactNativeDelegate = delegate
+    reactNativeFactory = factory
+
+    // The window is created and React Native is started by `SceneDelegate` under the
+    // scene-based life cycle (required by the iOS 27 SDK).
+    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
+  }
+}
+
+class ReactNativeDelegate: ExpoReactNativeFactoryDelegate {
+  // Extension point for config-plugins
+
+  override func sourceURL(for bridge: RCTBridge) -> URL? {
+    // needed to return the correct URL for expo-dev-client.
+    bridge.bundleURL ?? bundleURL()
+  }
+
+  override func bundleURL() -> URL? {
+#if DEBUG
+    return RCTBundleURLProvider.sharedSettings().jsBundleURL(forBundleRoot: ".expo/.virtual-metro-entry")
+#else
+    return Bundle.main.url(forResource: "main", withExtension: "jsbundle")
+#endif
+  }
+}

packages/app-check/plugin/__tests__/iosPlugin.test.ts

@@ -17,6 +17,48 @@ describe('Config Plugin iOS Tests', function () {
     jest.resetAllMocks();
   });
 
+  it('works with a UIScene lifecycle Swift AppDelegate (SDK 58+)', async function () {
+    const appDelegate = await fs.readFile(
+      path.join(__dirname, './fixtures/AppDelegate_sdk58.swift'),
+      { encoding: 'utf8' },
+    );
+
+    // SDK 58 moved `startReactNative` into SceneDelegate.swift, so the previous anchor is gone.
+    expect(appDelegate).not.toContain('factory.startReactNative(');
+
+    const result = modifySwiftAppDelegate(appDelegate);
+
+    expect(result).toContain('RNFBAppCheckModule.sharedInstance()');
+    // Firebase requires the App Check provider factory before configure (AppCheck-AD-3).
+    expect(result.indexOf('RNFBAppCheckModule.sharedInstance()')).toBeLessThan(
+      result.indexOf('FirebaseApp.configure()'),
+    );
+    // Must land inside didFinishLaunchingWithOptions, before the super call returns.
+    expect(result.indexOf('RNFBAppCheckModule.sharedInstance()')).toBeLessThan(
+      result.indexOf('return super.application(application'),
+    );
+    expect(result).toMatchSnapshot();
+  });
+
+  it('prefers the app plugin generated marker when it is already present', async function () {
+    const appDelegate = await fs.readFile(
+      path.join(__dirname, './fixtures/AppDelegate_sdk58.swift'),
+      { encoding: 'utf8' },
+    );
+    const firebaseLine =
+      '// @generated end @react-native-firebase/app-didFinishLaunchingWithOptions';
+    const withMarker = appDelegate.replace(
+      'return super.application(application',
+      `${firebaseLine}\n    return super.application(application`,
+    );
+
+    const result = modifySwiftAppDelegate(withMarker);
+
+    expect(result.indexOf('RNFBAppCheckModule.sharedInstance()')).toBeGreaterThan(
+      result.indexOf(firebaseLine),
+    );
+  });
+
   it('tests changes made to old AppDelegate.m (SDK 42)', async function () {
     const appDelegate = await fs.readFile(path.join(__dirname, './fixtures/AppDelegate_sdk42.m'), {
       encoding: 'utf8',

packages/app-check/plugin/src/ios/appDelegate.ts

@@ -31,6 +31,25 @@ const methodInvocationLineMatcher =
 const fallbackInvocationLineMatcher =
   /-\s*\(BOOL\)\s*application:\s*\(UIApplication\s*\*\s*\)\s*\w+\s+didFinishLaunchingWithOptions:/g;
 
+export const swiftDidFinishLaunchingAnchor: RegExp = /didFinishLaunchingWithOptions\s+\w+\s*:/;
+
+export function getSwiftMethodBodyOffset(contents: string, anchor: RegExp): number | null {
+  const lines = contents.split('\n');
+  const anchorIndex = lines.findIndex(line => anchor.test(line));
+  if (anchorIndex === -1) {
+    return null;
+  }
+
+  const maxLookahead = Math.min(lines.length, anchorIndex + 8);
+  for (let index = anchorIndex; index < maxLookahead; index++) {
+    if (/\{\s*$/.test(lines[index])) {
+      return index - anchorIndex + 1;
+    }
+  }
+
+  return null;
+}
+
 export function modifyObjcAppDelegate(contents: string): string {
   contents = preferQuotedAppCheckModuleImport(contents);
   // Add import
@@ -149,21 +168,32 @@ export function modifySwiftAppDelegate(contents: string): string {
 
   const methodInvocationLineMatcher = /(?:factory\.startReactNative\()/;
 
-  if (!methodInvocationLineMatcher.test(contents)) {
-    WarningAggregator.addWarningIOS(
-      '@react-native-firebase/app-check',
-      'Unable to determine correct insertion point in AppDelegate.swift. Skipping App Check addition.',
-    );
-    return contents;
+  // Under the UIScene life cycle (required by Xcode 27+) the app delegate was moved to `SceneDelegate.swift`
+  let anchor: RegExp;
+  let offset: number;
+  if (methodInvocationLineMatcher.test(contents)) {
+    anchor = methodInvocationLineMatcher;
+    offset = 0;
+  } else {
+    const bodyOffset = getSwiftMethodBodyOffset(contents, swiftDidFinishLaunchingAnchor);
+    if (bodyOffset === null) {
+      WarningAggregator.addWarningIOS(
+        '@react-native-firebase/app-check',
+        'Unable to determine correct insertion point in AppDelegate.swift. Skipping App Check addition.',
+      );
+      return contents;
+    }
+    anchor = swiftDidFinishLaunchingAnchor;
+    offset = bodyOffset;
   }
 
   try {
     return mergeContents({
       tag: '@react-native-firebase/app-check',
       src: contents,
       newSrc: methodInvocationBlock,
-      anchor: methodInvocationLineMatcher,
-      offset: 0,
+      anchor,
+      offset,
       comment: '//',
     }).contents;
   } catch (_e) {

packages/app/plugin/__tests__/__snapshots__/iosPlugin.test.ts.snap

@@ -530,3 +530,55 @@ FirebaseApp.configure()
   }
 }"
 `;
+
+exports[`Config Plugin iOS Tests works with a UIScene lifecycle Swift AppDelegate (SDK 58+) 1`] = `
+"internal import Expo
+import FirebaseCore
+import React
+import ReactAppDependencyProvider
+
+@main
+class AppDelegate: ExpoAppDelegate, ExpoReactNativeFactoryProvider {
+  var window: UIWindow?
+
+  var reactNativeDelegate: ExpoReactNativeFactoryDelegate?
+  var reactNativeFactory: RCTReactNativeFactory?
+
+  public override func application(
+    _ application: UIApplication,
+    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? = nil
+  ) -> Bool {
+// @generated begin @react-native-firebase/app-didFinishLaunchingWithOptions - expo prebuild (DO NOT MODIFY) sync-10e8520570672fd76b2403b7e1e27f5198a6349a
+FirebaseApp.configure()
+// @generated end @react-native-firebase/app-didFinishLaunchingWithOptions
+    let delegate = ReactNativeDelegate()
+    let factory = ExpoReactNativeFactory(delegate: delegate)
+    delegate.dependencyProvider = RCTAppDependencyProvider()
+
+    reactNativeDelegate = delegate
+    reactNativeFactory = factory
+
+    // The window is created and React Native is started by \`SceneDelegate\` under the
+    // scene-based life cycle (required by the iOS 27 SDK).
+    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
+  }
+}
+
+class ReactNativeDelegate: ExpoReactNativeFactoryDelegate {
+  // Extension point for config-plugins
+
+  override func sourceURL(for bridge: RCTBridge) -> URL? {
+    // needed to return the correct URL for expo-dev-client.
+    bridge.bundleURL ?? bundleURL()
+  }
+
+  override func bundleURL() -> URL? {
+#if DEBUG
+    return RCTBundleURLProvider.sharedSettings().jsBundleURL(forBundleRoot: ".expo/.virtual-metro-entry")
+#else
+    return Bundle.main.url(forResource: "main", withExtension: "jsbundle")
+#endif
+  }
+}
+"
+`;

packages/app/plugin/__tests__/fixtures/AppDelegate_sdk58.swift

@@ -0,0 +1,44 @@
+internal import Expo
+import React
+import ReactAppDependencyProvider
+
+@main
+class AppDelegate: ExpoAppDelegate, ExpoReactNativeFactoryProvider {
+  var window: UIWindow?
+
+  var reactNativeDelegate: ExpoReactNativeFactoryDelegate?
+  var reactNativeFactory: RCTReactNativeFactory?
+
+  public override func application(
+    _ application: UIApplication,
+    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? = nil
+  ) -> Bool {
+    let delegate = ReactNativeDelegate()
+    let factory = ExpoReactNativeFactory(delegate: delegate)
+    delegate.dependencyProvider = RCTAppDependencyProvider()
+
+    reactNativeDelegate = delegate
+    reactNativeFactory = factory
+
+    // The window is created and React Native is started by `SceneDelegate` under the
+    // scene-based life cycle (required by the iOS 27 SDK).
+    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
+  }
+}
+
+class ReactNativeDelegate: ExpoReactNativeFactoryDelegate {
+  // Extension point for config-plugins
+
+  override func sourceURL(for bridge: RCTBridge) -> URL? {
+    // needed to return the correct URL for expo-dev-client.
+    bridge.bundleURL ?? bundleURL()
+  }
+
+  override func bundleURL() -> URL? {
+#if DEBUG
+    return RCTBundleURLProvider.sharedSettings().jsBundleURL(forBundleRoot: ".expo/.virtual-metro-entry")
+#else
+    return Bundle.main.url(forResource: "main", withExtension: "jsbundle")
+#endif
+  }
+}

packages/app/plugin/__tests__/iosPlugin.test.ts

@@ -1,4 +1,4 @@
-import { IOSConfig } from '@expo/config-plugins';
+import { IOSConfig, WarningAggregator } from '@expo/config-plugins';
 import { AppDelegateProjectFile } from '@expo/config-plugins/build/ios/Paths';
 import fs from 'fs/promises';
 import path from 'path';
@@ -93,6 +93,66 @@ describe('Config Plugin iOS Tests', function () {
     expect(result).toMatchSnapshot();
   });
 
+  it('works with a UIScene lifecycle Swift AppDelegate (SDK 58+)', async function () {
+    const appDelegate = await fs.readFile(
+      path.join(__dirname, './fixtures/AppDelegate_sdk58.swift'),
+      {
+        encoding: 'utf8',
+      },
+    );
+
+    // The SDK 58 template moved `startReactNative` into SceneDelegate.swift, so neither of the
+    // pre-existing anchors is present. Without the didFinishLaunchingWithOptions fallback the
+    // plugin silently skips and Firebase is never configured.
+    expect(appDelegate).not.toContain('factory.startReactNative(');
+    expect(appDelegate).not.toContain('self.moduleName');
+
+    const result = modifySwiftAppDelegate(appDelegate);
+
+    expect(result).toContain('import FirebaseCore');
+    // Must land inside didFinishLaunchingWithOptions: it has to run before any scene connects.
+    const configureIndex = result.indexOf('FirebaseApp.configure()');
+    const didFinishLaunchingIndex = result.indexOf('didFinishLaunchingWithOptions launchOptions');
+    const superCallIndex = result.indexOf('return super.application(application');
+    expect(configureIndex).toBeGreaterThan(didFinishLaunchingIndex);
+    expect(configureIndex).toBeLessThan(superCallIndex);
+    expect(result).toMatchSnapshot();
+  });
+
+  it('is idempotent on a UIScene lifecycle Swift AppDelegate', async function () {
+    const appDelegate = await fs.readFile(
+      path.join(__dirname, './fixtures/AppDelegate_sdk58.swift'),
+      {
+        encoding: 'utf8',
+      },
+    );
+
+    const once = modifySwiftAppDelegate(appDelegate);
+    const twice = modifySwiftAppDelegate(once);
+
+    expect(twice).toEqual(once);
+    expect(twice.match(/FirebaseApp\.configure\(\)/g)).toHaveLength(1);
+    expect(twice.match(/import FirebaseCore/g)).toHaveLength(1);
+  });
+
+  it('warns rather than throwing when a Swift AppDelegate has no recognizable insertion point', function () {
+    const appDelegate = `import UIKit
+
+class NotAnAppDelegate {
+  var window: UIWindow?
+}
+`;
+    const spy = jest.spyOn(WarningAggregator, 'addWarningIOS').mockImplementation(() => undefined);
+
+    const result = modifySwiftAppDelegate(appDelegate);
+
+    expect(result).not.toContain('FirebaseApp.configure()');
+    expect(spy).toHaveBeenCalledWith(
+      '@react-native-firebase/app',
+      'Unable to determine correct Firebase insertion point in AppDelegate.swift. Skipping Firebase addition.',
+    );
+  });
+
   it('does not add the firebase import multiple times', async function () {
     const singleImport = '#import "AppDelegate.h"\n#import <Firebase/Firebase.h>';
     const doubleImport = singleImport + '\n#import <Firebase/Firebase.h>';