using Bit.App.Abstractions;
using Bit.App.Models;
using Bit.App.Pages;
using Bit.Core.Resources.Localization;
using Bit.App.Services;
using Bit.App.Utilities;
using Bit.App.Utilities.AccountManagement;
using Bit.Core;
using Bit.Core.Abstractions;
using Bit.Core.Enums;
using Bit.Core.Models.Data;
using Bit.Core.Models.Domain;
using Bit.Core.Models.Response;
using Bit.Core.Pages;
using Bit.Core.Services;
using Bit.Core.Utilities;
using Bit.Core.Utilities.Fido2;

[assembly: XamlCompilation(XamlCompilationOptions.Compile)]
namespace Bit.App
{
    public partial class App : Application, IAccountsManagerHost
    {
        public const string POP_ALL_AND_GO_TO_TAB_GENERATOR_MESSAGE = "popAllAndGoToTabGenerator";
        public const string POP_ALL_AND_GO_TO_TAB_MYVAULT_MESSAGE = "popAllAndGoToTabMyVault";
        public const string POP_ALL_AND_GO_TO_TAB_SEND_MESSAGE = "popAllAndGoToTabSend";
        public const string POP_ALL_AND_GO_TO_AUTOFILL_CIPHERS_MESSAGE = "popAllAndGoToAutofillCiphers";

        private readonly IBroadcasterService _broadcasterService;
        private readonly IMessagingService _messagingService;
        private readonly IStateService _stateService;
        private readonly IVaultTimeoutService _vaultTimeoutService;
        private readonly ISyncService _syncService;
        private readonly IAuthService _authService;
        private readonly IDeviceActionService _deviceActionService;
        private readonly IFileService _fileService;
        private readonly IAccountsManager _accountsManager;
        private readonly IPushNotificationService _pushNotificationService;
        private readonly IConfigService _configService;
        private readonly ILogger _logger;
#if ANDROID
        private LazyResolve<IFido2MakeCredentialConfirmationUserInterface> _fido2MakeCredentialConfirmationUserInterface = new LazyResolve<IFido2MakeCredentialConfirmationUserInterface>();
#endif

        private static bool _isResumed;
        // these variables are static because the app is launching new activities on notification click, creating new instances of App. 
        private static bool _pendingCheckPasswordlessLoginRequests;
        private static object _processingLoginRequestLock = new object();

        // [MAUI-Migration] Workaround to avoid issue on Android where trying to show the LockPage when the app is resuming or in background breaks the app.
        // This queue keeps those actions so that when the app has resumed they can still be executed.
        // Links: https://github.com/dotnet/maui/issues/11501 and https://bitwarden.atlassian.net/wiki/spaces/NMME/pages/664862722/MainPage+Assignments+not+working+on+Android+on+Background+or+App+resume
        private readonly Queue<Action> _onResumeActions = new Queue<Action>();

#if ANDROID

        /*
         *  ** Workaround for our Android crashes when trying to use Autofill **
         *
         * This workaround works by managing the "Window Creation" ourselves.
         * - If we get an AutofillExternalActivity we just create a "dummy" window/navigation page so that the activity can run without crashing. (no visible UI is needed)
         * - If we get an FromAutofillFramework/Uri/Otp/CreateSend special Option request we create an Autofill Window
         * - For everything else we use the default "mainWindow"
         */

        public new static Page MainPage
        {
            get
            {
                return CurrentWindow?.Page;
            }
            set
            {
                if (CurrentWindow != null)
                {
                    CurrentWindow.Page = value;
                }
            }
        }

        /// <summary>
        /// Find the Current Active Window. There should only be one at any point in Android
        /// </summary>
        public static ResumeWindow CurrentWindow
        {
            get
            {
                return Application.Current?.Windows.OfType<ResumeWindow>().FirstOrDefault(w => w.IsActive);
            }
        }

        /// <summary>
        /// Allows setting Options from MainActivity before base.OnCreate
        /// Note 1: This is only be used by Android due to way it's Lifecycle works
        /// Note 2: This method does not replace existing Options in App.xaml.cs if it exists already.
        ///         It only updates properties in Options related with Autofill/CreateSend/etc..
        /// </summary>
        /// <param name="appOptions">Options created in Android MainActivity.cs</param>
        public void SetAndroidOptions(AppOptions appOptions)
        {
            if (Options == null)
            {
                Options = appOptions ?? new AppOptions();
            }
            else if(appOptions != null)
            { 
                Options.Uri = appOptions.Uri;
                Options.MyVaultTile = appOptions.MyVaultTile;
                Options.GeneratorTile = appOptions.GeneratorTile;
                Options.FromAutofillFramework = appOptions.FromAutofillFramework;
                Options.FromFido2Framework = appOptions.FromFido2Framework;
                Options.Fido2CredentialAction = appOptions.Fido2CredentialAction;
                Options.CreateSend = appOptions.CreateSend;
                Options.HasUnlockedInThisTransaction = appOptions.HasUnlockedInThisTransaction;
            }
        }

        protected override Window CreateWindow(IActivationState activationState)
        {
            //When executing from AutofillExternalActivity we don't have "Options" so we need to filter "manually"
            //In the AutofillExternalActivity we don't need to show any Page, so we just create a "dummy" Window with a NavigationPage to avoid crashing.
            if (activationState != null 
                && activationState.State.TryGetValue("autofillFramework", out string autofillFramework)
                && autofillFramework == "true"
                && activationState.State.ContainsKey("autofillFrameworkCipherId"))
            {
                return new Window(new NavigationPage()); //No actual page needed. Only used for auto-filling the fields directly (externally)
            }

            //When executing from CredentialProviderSelectionActivity we don't have "Options" so we need to filter "manually"
            //In the CredentialProviderSelectionActivity we don't need to show any Page, so we just create a "dummy" Window with a NavigationPage to avoid crashing.
            if (activationState != null 
                && activationState.State.ContainsKey("CREDENTIAL_DATA") 
                && activationState.State.ContainsKey("credentialProviderCipherId"))
            {
                return new Window(new NavigationPage()); //No actual page needed. Only used for auto-filling the fields directly (externally)
            }

            _isResumed = true;
            return new ResumeWindow(new NavigationPage(new AndroidNavigationRedirectPage(Options)));
        }
#else
        //iOS doesn't use the CreateWindow override used in Android so we just set the Application.Current.MainPage directly
        public new static Page MainPage
        {
            get
            {
                return Application.Current?.MainPage;
            }
            set
            {
                if (Application.Current != null)
                {
                    Application.Current.MainPage = value;
                }
            }
        }
#endif

        public App() : this(null)
        {
        }

        public App(AppOptions appOptions)
        {
            Options = appOptions ?? new AppOptions();
            if (Options.IosExtension)
            {
                Current = this;
                return;
            }
            _broadcasterService = ServiceContainer.Resolve<IBroadcasterService>("broadcasterService");
            _messagingService = ServiceContainer.Resolve<IMessagingService>("messagingService");
            _stateService = ServiceContainer.Resolve<IStateService>("stateService");
            _vaultTimeoutService = ServiceContainer.Resolve<IVaultTimeoutService>("vaultTimeoutService");
            _syncService = ServiceContainer.Resolve<ISyncService>("syncService");
            _authService = ServiceContainer.Resolve<IAuthService>("authService");
            _deviceActionService = ServiceContainer.Resolve<IDeviceActionService>("deviceActionService");
            _fileService = ServiceContainer.Resolve<IFileService>();
            _accountsManager = ServiceContainer.Resolve<IAccountsManager>("accountsManager");
            _pushNotificationService = ServiceContainer.Resolve<IPushNotificationService>();
            _configService = ServiceContainer.Resolve<IConfigService>();
            _logger = ServiceContainer.Resolve<ILogger>();

            _accountsManager.Init(() => Options, this);

            _broadcasterService.Subscribe(nameof(App), BroadcastServiceMessageCallbackAsync);

            Bootstrap();
        }

        private async void BroadcastServiceMessageCallbackAsync(Message message)
        {
           try
           {
                ArgumentNullException.ThrowIfNull(message);
                if (message.Command == "showDialog")
                {
                    var details = message.Data as DialogDetails;
                    ArgumentNullException.ThrowIfNull(details);
                    
                    var confirmed = true;
                    var confirmText = string.IsNullOrWhiteSpace(details.ConfirmText) ?
                        AppResources.Ok : details.ConfirmText;
                    await MainThread.InvokeOnMainThreadAsync(ShowDialogAction);
                    async Task ShowDialogAction()
                    {
                        if (!string.IsNullOrWhiteSpace(details.CancelText))
                        {
                            ArgumentNullException.ThrowIfNull(MainPage);

                            confirmed = await MainPage.DisplayAlert(details.Title, details.Text, confirmText,
                                details.CancelText);
                        }
                        else
                        {
                            await _deviceActionService.DisplayAlertAsync(details.Title, details.Text, confirmText);
                        }
                        _messagingService.Send("showDialogResolve", new Tuple<int, bool>(details.DialogId, confirmed));
                    }
                }
#if IOS
                else if (message.Command == AppHelpers.RESUMED_MESSAGE_COMMAND)
                {
                    ResumedAsync().FireAndForget();
                }
                else if (message.Command == "slept")
                {
                    await SleptAsync();
                }
#endif
                else if (message.Command == "migrated")
                {
                    await Task.Delay(1000);
                    await _accountsManager.NavigateOnAccountChangeAsync();
                }
                else if (message.Command == POP_ALL_AND_GO_TO_TAB_GENERATOR_MESSAGE ||
                         message.Command == POP_ALL_AND_GO_TO_TAB_MYVAULT_MESSAGE ||
                         message.Command == POP_ALL_AND_GO_TO_TAB_SEND_MESSAGE ||
                         message.Command == POP_ALL_AND_GO_TO_AUTOFILL_CIPHERS_MESSAGE ||
                         message.Command == DeepLinkContext.NEW_OTP_MESSAGE)
                {
                    if (message.Command == DeepLinkContext.NEW_OTP_MESSAGE)
                    {
                        Options.OtpData = new OtpData((string)message.Data);
                    }

                    await MainThread.InvokeOnMainThreadAsync(ExecuteNavigationAction);
                    async Task ExecuteNavigationAction()
                    {
                        if (MainPage is TabsPage tabsPage)
                        {
                            ArgumentNullException.ThrowIfNull(tabsPage.Navigation);
                            ArgumentNullException.ThrowIfNull(tabsPage.Navigation.ModalStack);
                            while (tabsPage.Navigation.ModalStack.Count > 0)
                            {
                                await tabsPage.Navigation.PopModalAsync(false);
                            }

                            if (message.Command == POP_ALL_AND_GO_TO_AUTOFILL_CIPHERS_MESSAGE)
                            {
                                MainPage = new NavigationPage(new CipherSelectionPage(Options));
                            }
                            else if (message.Command == POP_ALL_AND_GO_TO_TAB_MYVAULT_MESSAGE)
                            {
                                Options.MyVaultTile = false;
                                tabsPage.ResetToVaultPage();
                            }
                            else if (message.Command == POP_ALL_AND_GO_TO_TAB_GENERATOR_MESSAGE)
                            {
                                Options.GeneratorTile = false;
                                tabsPage.ResetToGeneratorPage();
                            }
                            else if (message.Command == POP_ALL_AND_GO_TO_TAB_SEND_MESSAGE)
                            {
                                tabsPage.ResetToSendPage();
                            }
                            else if (message.Command == DeepLinkContext.NEW_OTP_MESSAGE)
                            {
                                tabsPage.ResetToVaultPage();
                                ArgumentNullException.ThrowIfNull(tabsPage.Navigation);
                                await tabsPage.Navigation.PushModalAsync(new NavigationPage(new CipherSelectionPage(Options)));
                            }
                        }
                    }
                }
                else if (message.Command == Constants.CredentialNavigateToAutofillCipherMessageCommand && message.Data is Fido2ConfirmNewCredentialParams createParams)
                {
                    ArgumentNullException.ThrowIfNull(MainPage);
                    ArgumentNullException.ThrowIfNull(Options);
                    await MainThread.InvokeOnMainThreadAsync(NavigateToCipherSelectionPageAction);
                    void NavigateToCipherSelectionPageAction()
                    {
                        Options.Uri = createParams.RpId;
                        Options.SaveUsername = createParams.UserName;
                        Options.SaveName = createParams.CredentialName;
                        MainPage = new NavigationPage(new CipherSelectionPage(Options));
                    }
                }
                else if (message.Command == "convertAccountToKeyConnector")
                {
                    ArgumentNullException.ThrowIfNull(MainPage);
                    await MainThread.InvokeOnMainThreadAsync(NavigateToRemoveMasterPasswordPageAction);
                    async Task NavigateToRemoveMasterPasswordPageAction()
                    {
                        await MainPage.Navigation.PushModalAsync(
                            new NavigationPage(new RemoveMasterPasswordPage()));
                    }
                }
                else if (message.Command == Constants.ForceUpdatePassword)
                {
                    ArgumentNullException.ThrowIfNull(MainPage);
                    await MainThread.InvokeOnMainThreadAsync(NavigateToUpdateTempPasswordPageAction);
                    async Task NavigateToUpdateTempPasswordPageAction()
                    {
                        await MainPage.Navigation.PushModalAsync(
                            new NavigationPage(new UpdateTempPasswordPage()));
                    }
                }
                else if (message.Command == Constants.ForceSetPassword)
                {
                    ArgumentNullException.ThrowIfNull(MainPage);
                    await MainThread.InvokeOnMainThreadAsync(NavigateToSetPasswordPageAction);
                    void NavigateToSetPasswordPageAction()
                    {
                        MainPage.Navigation.PushModalAsync(
                            new NavigationPage(new SetPasswordPage(orgIdentifier: (string)message.Data)));
                    }
                }
                else if (message.Command == "syncCompleted")
                {
                    await _configService.GetAsync(true);
                }
                else if (message.Command == Constants.PasswordlessLoginRequestKey
                    || message.Command == "unlocked"
                    || message.Command == AccountsManagerMessageCommands.ACCOUNT_SWITCH_COMPLETED)
                {
#if ANDROID
                    if (message.Command == AccountsManagerMessageCommands.ACCOUNT_SWITCH_COMPLETED && _fido2MakeCredentialConfirmationUserInterface.Value.IsConfirmingNewCredential)
                    {
                        _fido2MakeCredentialConfirmationUserInterface.Value.OnConfirmationException(new AccountSwitchedException());
                    }
#endif

                    lock (_processingLoginRequestLock)
                    {
                        // lock doesn't allow for async execution
                        CheckPasswordlessLoginRequestsAsync().Wait();
                    }
                }
                else if (message.Command == Constants.NavigateToMessageCommand && message.Data is NavigationTarget navigationTarget)
                {
                    await MainThread.InvokeOnMainThreadAsync(() =>
                    {
                        Navigate(navigationTarget, null);
                    });
                }
           }
           catch (Exception ex)
           {
               LoggerHelper.LogEvenIfCantBeResolved(ex);
           }
        }

        private async Task CheckPasswordlessLoginRequestsAsync()
        {
            if (!_isResumed)
            {
                _pendingCheckPasswordlessLoginRequests = true;
                return;
            }
            _pendingCheckPasswordlessLoginRequests = false;
            if (await _vaultTimeoutService.IsLockedAsync())
            {
                return;
            }
            var notification = await _stateService.GetPasswordlessLoginNotificationAsync();
            if (notification == null)
            {
                return;
            }

            if (await CheckShouldSwitchActiveUserAsync(notification))
            {
                return;
            }

            // Delay to wait for the vault page to appear
            await Task.Delay(2000);
            // if there is a request modal opened ignore all incoming requests
            if (MainPage.Navigation.ModalStack.Any(p => p is NavigationPage navPage && navPage.CurrentPage is LoginPasswordlessPage))
            {
                return;
            }
            var loginRequestData = await _authService.GetPasswordlessLoginRequestByIdAsync(notification.Id);
            var page = new LoginPasswordlessPage(new LoginPasswordlessDetails()
            {
                PubKey = loginRequestData.PublicKey,
                Id = loginRequestData.Id,
                IpAddress = loginRequestData.RequestIpAddress,
                Email = await _stateService.GetEmailAsync(),
                FingerprintPhrase = loginRequestData.FingerprintPhrase,
                RequestDate = loginRequestData.CreationDate,
                DeviceType = loginRequestData.RequestDeviceType,
                Origin = loginRequestData.Origin
            });
            await _stateService.SetPasswordlessLoginNotificationAsync(null);
            _pushNotificationService.DismissLocalNotification(Constants.PasswordlessNotificationId);
            if (!loginRequestData.IsExpired)
            {
                await MainThread.InvokeOnMainThreadAsync(() => MainPage.Navigation.PushModalAsync(new NavigationPage(page)));
            }
        }

        private async Task<bool> CheckShouldSwitchActiveUserAsync(PasswordlessRequestNotification notification)
        {
            var activeUserId = await _stateService.GetActiveUserIdAsync();
            if (notification.UserId == activeUserId)
            {
                return false;
            }

            var notificationUserEmail = await _stateService.GetEmailAsync(notification.UserId);
            MainThread.BeginInvokeOnMainThread(async () =>
            {
                try
                {
                    var result = await _deviceActionService.DisplayAlertAsync(AppResources.LogInRequested, string.Format(AppResources.LoginAttemptFromXDoYouWantToSwitchToThisAccount, notificationUserEmail), AppResources.Cancel, AppResources.Ok);
                    if (result == AppResources.Ok)
                    {
                        await _stateService.SetActiveUserAsync(notification.UserId);
                        _messagingService.Send(AccountsManagerMessageCommands.SWITCHED_ACCOUNT);
                    }
                }
                catch (Exception ex)
                {
                    LoggerHelper.LogEvenIfCantBeResolved(ex);
                }
            });
            return true;
        }

        public AppOptions Options { get; private set; }

        protected override async void OnStart()
        {
            try
            {
                System.Diagnostics.Debug.WriteLine("XF App: OnStart");
                _isResumed = true;
                await ClearCacheIfNeededAsync();
                Prime();
                if (string.IsNullOrWhiteSpace(Options.Uri))
                {
                    var updated = await AppHelpers.PerformUpdateTasksAsync(_syncService, _deviceActionService,
                        _stateService);
                    if (!updated)
                    {
                        SyncIfNeeded();
                    }
                }
                if (_pendingCheckPasswordlessLoginRequests)
                {
                    _messagingService.Send(Constants.PasswordlessLoginRequestKey);
                }
    #if ANDROID
                await _vaultTimeoutService.CheckVaultTimeoutAsync();
                // Reset delay on every start
                _vaultTimeoutService.DelayLockAndLogoutMs = null;
    #endif

                await _configService.GetAsync();
                _messagingService.Send("startEventTimer");
            }
            catch (Exception ex)
            {
                _logger?.Exception(ex);
                throw;
            }
        }

#if ANDROID
        protected override async void OnSleep()
#else
        protected override void OnSleep()
#endif
        {
            try
            {
                System.Diagnostics.Debug.WriteLine("XF App: OnSleep");
                _isResumed = false;
#if ANDROID
                var isLocked = await _vaultTimeoutService.IsLockedAsync();
                if (!isLocked)
                {
                    await _stateService.SetLastActiveTimeAsync(_deviceActionService.GetActiveTime());
                }
                if (!SetTabsPageFromAutofill(isLocked))
                {
                    ClearAutofillUri();
                }
                await SleptAsync();
#endif
            }
            catch (Exception ex)
            {
                _logger?.Exception(ex);
                throw;
            }
        }

        protected override void OnResume()
        {
            try
            {
                System.Diagnostics.Debug.WriteLine("XF App: OnResume");
                _isResumed = true;
                if (_pendingCheckPasswordlessLoginRequests)
                {
                    _messagingService.Send(Constants.PasswordlessLoginRequestKey);
                }
#if ANDROID
                ResumedAsync().FireAndForget();
#endif

            }
            catch (Exception ex)
            {
                _logger?.Exception(ex);
                throw;
            }
        }

        private async Task SleptAsync()
        {
            await _vaultTimeoutService.CheckVaultTimeoutAsync();
            await ClearSensitiveFieldsAsync();
            _messagingService.Send("stopEventTimer");
        }

        private async Task ResumedAsync()
        {
            await _stateService.CheckExtensionActiveUserAndSwitchIfNeededAsync();
            await _vaultTimeoutService.CheckVaultTimeoutAsync();
            await ClearSensitiveFieldsAsync();
            _messagingService.Send("startEventTimer");
            await UpdateThemeAsync();
            await ClearCacheIfNeededAsync();
            Prime();
            SyncIfNeeded();
            if (MainPage is NavigationPage navPage && navPage.CurrentPage is LockPage lockPage)
            {
                await lockPage.PromptBiometricAfterResumeAsync();
            }

            // [MAUI-Migration] Workaround to avoid issue on Android where trying to show the LockPage when the app is resuming or in background breaks the app.
            // Currently we keep those actions in a queue until the app has resumed and execute them here.
            // Links: https://github.com/dotnet/maui/issues/11501 and https://bitwarden.atlassian.net/wiki/spaces/NMME/pages/664862722/MainPage+Assignments+not+working+on+Android+on+Background+or+App+resume
            await Task.Delay(50); //Small delay that is part of the workaround and ensures the app is ready to set "MainPage"
            while (_onResumeActions.TryDequeue(out var action))
            {
                MainThread.BeginInvokeOnMainThread(action);
            }
        }

        public async Task UpdateThemeAsync()
        {
            await MainThread.InvokeOnMainThreadAsync(() =>
            {
                ThemeManager.SetTheme(Resources);
                _messagingService.Send(ThemeManager.UPDATED_THEME_MESSAGE_KEY);
            });
        }

        private async Task ClearSensitiveFieldsAsync()
        {
            await MainThread.InvokeOnMainThreadAsync(() =>
            {
                _messagingService.Send(Constants.ClearSensitiveFields);
            });
        }

        private void SetCulture()
        {
            // Calendars are removed by linker. ref https://bugzilla.xamarin.com/show_bug.cgi?id=59077
            new System.Globalization.ThaiBuddhistCalendar();
            new System.Globalization.HijriCalendar();
            new System.Globalization.UmAlQuraCalendar();
        }

        private async Task ClearCacheIfNeededAsync()
        {
            var lastClear = await _stateService.GetLastFileCacheClearAsync();
            if ((DateTime.UtcNow - lastClear.GetValueOrDefault(DateTime.MinValue)).TotalDays >= 1)
            {
                var task = Task.Run(() => _fileService.ClearCacheAsync());
            }
        }

        private void ClearAutofillUri()
        {
            if (DeviceInfo.Platform == DevicePlatform.Android && !string.IsNullOrWhiteSpace(Options.Uri))
            {
                Options.Uri = null;
            }
        }

        private bool SetTabsPageFromAutofill(bool isLocked)
        {
            if (DeviceInfo.Platform == DevicePlatform.Android && !string.IsNullOrWhiteSpace(Options.Uri) &&
                !Options.FromAutofillFramework)
            {
                Task.Run(() =>
                {
                    MainThread.BeginInvokeOnMainThread(() =>
                    {
                        try
                        {
                            Options.Uri = null;
                            if (isLocked)
                            {
                                App.MainPage = new NavigationPage(new LockPage());
                            }
                            else
                            {
                                App.MainPage = new TabsPage();
                            }
                        }
                        catch (Exception ex)
                        {
                            LoggerHelper.LogEvenIfCantBeResolved(ex);
                            throw;
                        }
                    });
                });
                return true;
            }
            return false;
        }

        private void Prime()
        {
            Task.Run(() =>
            {
                var word = EEFLongWordList.Instance.List[1];
                var parsedDomain = DomainName.TryParse("https://bitwarden.com", out var domainName);
            });
        }

        private void Bootstrap()
        {
            InitializeComponent();
            SetCulture();
            ThemeManager.SetTheme(Resources);
            RequestedThemeChanged += (s, a) =>
            {
                UpdateThemeAsync().FireAndForget();
            };
            _isResumed = true;
#if IOS
            //We only set the MainPage here for iOS. Android is using the CreateWindow override for the initial page.
            App.MainPage = new NavigationPage(new HomePage(Options));
#endif
            _accountsManager.NavigateOnAccountChangeAsync().FireAndForget();
            ServiceContainer.Resolve<MobilePlatformUtilsService>("platformUtilsService").Init();
        }

        private void SyncIfNeeded()
        {
            if (Microsoft.Maui.Networking.Connectivity.NetworkAccess == Microsoft.Maui.Networking.NetworkAccess.None)
            {
                return;
            }
            Task.Run(async () =>
            {
                try
                {
                    var lastSync = await _syncService.GetLastSyncAsync();
                    if (lastSync == null || ((DateTime.UtcNow - lastSync) > TimeSpan.FromMinutes(30)))
                    {
                        await Task.Delay(1000);
                        await _syncService.FullSyncAsync(false);
                    }
                }
                catch (Exception ex)
                {
                    _logger.Exception(ex);
                }
            });
        }

        public async Task SetPreviousPageInfoAsync()
        {
            PreviousPageInfo lastPageBeforeLock = null;
            if (MainPage is TabbedPage tabbedPage && tabbedPage.Navigation.ModalStack.Count > 0)
            {
                var topPage = tabbedPage.Navigation.ModalStack[tabbedPage.Navigation.ModalStack.Count - 1];
                if (topPage is NavigationPage navPage)
                {
                    if (navPage.CurrentPage is CipherDetailsPage cipherDetailsPage)
                    {
                        lastPageBeforeLock = new PreviousPageInfo
                        {
                            Page = "view",
                            CipherId = cipherDetailsPage.ViewModel.CipherId
                        };
                    }
                    else if (navPage.CurrentPage is CipherAddEditPage cipherAddEditPage && cipherAddEditPage.ViewModel.EditMode)
                    {
                        lastPageBeforeLock = new PreviousPageInfo
                        {
                            Page = "edit",
                            CipherId = cipherAddEditPage.ViewModel.CipherId
                        };
                    }
                }
            }
            await _stateService.SetPreviousPageInfoAsync(lastPageBeforeLock);
        }

        public void Navigate(NavigationTarget navTarget, INavigationParams navParams)
        {

            // [MAUI-Migration] Workaround to avoid issue on Android where trying to show the LockPage when the app is resuming or in background breaks the app.
            // If we are in background we add the Navigation Actions to a queue to execute when the app resumes.
            // Links: https://github.com/dotnet/maui/issues/11501 and https://bitwarden.atlassian.net/wiki/spaces/NMME/pages/664862722/MainPage+Assignments+not+working+on+Android+on+Background+or+App+resume
#if ANDROID
            if (_fido2MakeCredentialConfirmationUserInterface != null && _fido2MakeCredentialConfirmationUserInterface.Value.IsConfirmingNewCredential)
            {
                // if it's creating passkey
                // and we have an active pending TaskCompletionSource
                // then we let the Fido2 Authenticator flow manage the navigation to avoid issues
                // like duplicated navigation to lock page.
                return;
            }

            if (!_isResumed)
            {
                _onResumeActions.Enqueue(() => NavigateImpl(navTarget, navParams));
                return;
            }
#endif
            NavigateImpl(navTarget, navParams);
        }

        private void NavigateImpl(NavigationTarget navTarget, INavigationParams navParams)
        {
            switch (navTarget)
            {
                case NavigationTarget.HomeLogin:
                    App.MainPage = new NavigationPage(new HomePage(Options));
                    break;
                case NavigationTarget.Login:
                    if (navParams is LoginNavigationParams loginParams)
                    {
                        App.MainPage = new NavigationPage(new LoginPage(loginParams.Email, Options));
                    }
                    break;
                case NavigationTarget.Lock:
                    if (navParams is LockNavigationParams lockParams)
                    {
                        App.MainPage = new NavigationPage(new LockPage(Options, lockParams.AutoPromptBiometric));
                    }
                    else
                    {
                        App.MainPage = new NavigationPage(new LockPage(Options));
                    }
                    break;
                case NavigationTarget.Home:
                    App.MainPage = new TabsPage(Options);
                    break;
                case NavigationTarget.AddEditCipher:
                    App.MainPage = new NavigationPage(new CipherAddEditPage(appOptions: Options));
                    break;
                case NavigationTarget.AutofillCiphers:
                case NavigationTarget.OtpCipherSelection:
                    App.MainPage = new NavigationPage(new CipherSelectionPage(Options));
                    break;
                case NavigationTarget.SendAddEdit:
                    App.MainPage = new NavigationPage(new SendAddEditPage(Options));
                    break;
            }
        }
    }
}