using System; using System.Collections.Generic; using System.Linq; using System.Windows.Input; using TINK.View; using Xamarin.Forms; namespace TINK.ViewModel.WhatsNew { public class WhatsNewViewModel { /// Constructs view model. /// /// /// /// Delegate to invoke master detail. /// View service to show agb- page. public WhatsNewViewModel( Version currentVersion, IDictionary whatsNewText, bool isShowAgbRequired, Action showMasterDetail, IViewService p_oViewService) { ViewService = p_oViewService ?? throw new ArgumentException($"Can not instantiate {typeof(WhatsNewViewModel)}-object. No view available."); ShowMasterDetail = showMasterDetail ?? throw new ArgumentException($"Can not instantiate {typeof(WhatsNewViewModel)}-object. No delegate to activated maste detail page available."); CurrentVersion = currentVersion; WhatsNewText = new FormattedString(); WhatsNewText.Spans.Add(new Span { Text = GetWhatNextHtmlText(whatsNewText) }); IsAgbChangedVisible = isShowAgbRequired; } public Version CurrentVersion { get; } public FormattedString WhatsNewText { get; } /// /// Title of the WhatsNewPage. /// public string WhatsNewTitle { get { // Get version info. return $"Neu in Version {CurrentVersion}"; } } /// Text saying that AGBs were modified. public FormattedString AgbChangedText { get { var l_oHint = new FormattedString(); l_oHint.Spans.Add(new Span { Text = "AGBs ", ForegroundColor = ViewModelHelper.LINK_COLOR }); l_oHint.Spans.Add(new Span { Text = "überarbeitet.\r\n" }); return l_oHint; } } public bool IsAgbChangedVisible { get; } /// Command object to bind agb link to view model. public ICommand OnShowAgbTapped { get { return new Command(async () => await ViewService.PushModalAsync(ViewTypes.GtcPage)); } } /// Called when dialog is disappearing. /// public void OnDisappearing(Action setWhatsNewWasShown) { setWhatsNewWasShown(); } #if !SHOWFEEDBACK public bool IsFeedbackVisible => false; #else public bool IsFeedbackVisible => true; #endif /// User clicks rate button. public ICommand OnOk { get { return new Command(() => ShowMasterDetail()); } } /// Reference to view service object. private readonly IViewService ViewService; /// Reference to view service object. private Action ShowMasterDetail { get; } public static string GetWhatNextHtmlText(IDictionary whatsNew) => string.Join("", whatsNew.Select(element => $"

{element.Key}
{element.Value}

").ToArray()); } }