using System; using System.Threading; using System.Threading.Tasks; using Serilog; using TINK.Model.Bikes.BikeInfoNS.DriveNS.BatteryNS; using TINK.Model.Device; using TINK.MultilingualResources; using TINK.ViewModel.FindBike; using Xamarin.CommunityToolkit.Extensions; using Xamarin.Forms; using Xamarin.Forms.Xaml; namespace TINK.View.FindBike { [XamlCompilation(XamlCompilationOptions.Compile)] public partial class FindBikePage : ContentPage, IViewService { /// Refernce to view model. FindBikePageViewModel m_oViewModel = null; /// /// Holds a value indicating whether page already subscribed to shell item changes or not. /// private bool _IsShellItemChangedReceived = false; public FindBikePage() { } /// /// Invoked when page is shown. /// Starts update process. /// protected async override void OnAppearing() { if (m_oViewModel != null) { // No need to create view model, set binding context an items source if already done. // If done twice tap events are fired multiple times (when hiding page using home button). await m_oViewModel.OnAppearingOrRefresh(); return; } try { var model = App.ModelRoot; m_oViewModel = new FindBikePageViewModel( model.ActiveUser, model, App.PermissionsService, App.BluetoothService, Device.RuntimePlatform, () => model.GetIsConnected(), (isConnected) => model.GetConnector(isConnected), App.LocationServicesContainer.Active, model.LocksServices.Active, model.Stations, model.Polling, model.PostAction, model.SmartDevice, this, (url) => DependencyService.Get().OpenUrl(url)) { IsReportLevelVerbose = model.IsReportLevelVerbose }; } catch (Exception exception) { Log.ForContext().Error("Displaying bikes at station page failed. {Exception}", exception); await DisplayAlert( AppResources.ErrorPageNotLoadedTitle, $"{AppResources.ErrorPageNotLoaded}\r\n{exception.Message}", AppResources.MessageAnswerOk); return; } InitializeComponent(); BindingContext = m_oViewModel; FindBikeListView.ItemsSource = m_oViewModel; await m_oViewModel.OnAppearingOrRefresh(); } /// /// Invoked when page is disappearing to /// - stop the update process /// - to subscribe to events. /// protected async override void OnDisappearing() { if (!_IsShellItemChangedReceived && Shell.Current != null) { // Subscribe to events. // Do not do this on startup because Shell.Current is null, if FindeBikePage is startup page. Shell.Current.Navigated += (sender, e) => { if (e.Source != ShellNavigationSource.ShellItemChanged) { // Nothing to do. return; } // Reset previous user input after switch of pages to allow user to select a differnt bike if one has been selected before. m_oViewModel.BikeIdUserInput = String.Empty; }; } _IsShellItemChangedReceived = true; await (m_oViewModel?.OnDisappearing() ?? Task.CompletedTask); } /// /// Displays alert message. /// /// Title of message. /// Message to display. /// Type of buttons. public new async Task DisplayAlert(string p_strTitle, string p_strMessage, string p_strCancel) => await App.Current.MainPage.DisplayAlert(p_strTitle, p_strMessage, p_strCancel); /// Displays alert message. /// Title of message. /// Message to display. /// Detailed error description. /// Type of buttons. public async Task DisplayAdvancedAlert( string title, string message, string details, string cancel) => await App.Current.MainPage.DisplayAlert(title, $"{message}\r\nDetails:\r\n{details}", cancel); /// Displays detailed alert message. /// Title of message. /// Message to display. /// Detailed error description. /// Text of accept button. /// Text of cancel button. /// True if user pressed accept. public async Task DisplayAdvancedAlert(string title, string message, string details, string accept, string cancel) => await App.Current.MainPage.DisplayAlert(title, !string.IsNullOrEmpty(details) ? $"{message}\r\nDetails:\r\n{details}" : $"{message}", accept, cancel); /// /// Displays alert message. /// /// Title of message. /// Message to display. /// Text of accept button. /// Text of button. /// True if user pressed accept. public new async Task DisplayAlert(string p_strTitle, string p_strMessage, string p_strAccept, string p_strCancel) => await App.Current.MainPage.DisplayAlert(p_strTitle, p_strMessage, p_strAccept, p_strCancel); #if USEFLYOUT public void ShowPage(ViewTypes p_oType, string p_strTitle = null) => throw new NotImplementedException(); #else /// Shows a page. /// Route of the page to show. public async Task ShowPage(string route) => await Shell.Current.GoToAsync(route); #endif /// Pushes a page onto the modal stack. /// Page to display. public async Task PushModalAsync(ViewTypes typeOfPage) => await Navigation.PushModalAsync((Page)Activator.CreateInstance(typeOfPage.GetViewType())); /// Pops a page from the modal stack. public Task PopModalAsync() => throw new NotSupportedException(); /// Pushes a page onto the stack. /// Page to display. public Task PushAsync(ViewTypes p_oTypeOfPage) => throw new NotSupportedException(); #if USCSHARP9 public async Task DisplayUserFeedbackPopup() => await Navigation.ShowPopupAsync(new FeedbackPopup()); #else public async Task DisplayUserFeedbackPopup(IBatteryMutable battery = null) => await Navigation.ShowPopupAsync(new FeedbackPopup(battery)); #endif } }