Event details page basic layout.

Wino.Calendar.ViewModels/EventDetailsPageViewModel.cs

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+using System;
+using System.Threading.Tasks;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using CommunityToolkit.Mvvm.Messaging;
+using Wino.Calendar.ViewModels.Data;
+using Wino.Core.Domain.Enums;
+using Wino.Core.Domain.Interfaces;
+using Wino.Core.Domain.Models.Calendar;
+using Wino.Core.Domain.Models.Navigation;
+using Wino.Core.ViewModels;
+using Wino.Messaging.Client.Calendar;
+
+namespace Wino.Calendar.ViewModels
+{
+    public partial class EventDetailsPageViewModel : CalendarBaseViewModel
+    {
+        private readonly ICalendarService _calendarService;
+        private readonly INativeAppService _nativeAppService;
+        private readonly IPreferencesService _preferencesService;
+
+        public CalendarSettings CurrentSettings { get; }
+
+        #region Details
+
+        [ObservableProperty]
+        [NotifyPropertyChangedFor(nameof(CanViewSeries))]
+        private CalendarItemViewModel _currentEvent;
+
+        public bool CanViewSeries => CurrentEvent?.CalendarItem.RecurringCalendarItemId != null;
+
+        #endregion
+
+        public EventDetailsPageViewModel(ICalendarService calendarService, INativeAppService nativeAppService, IPreferencesService preferencesService)
+        {
+            _calendarService = calendarService;
+            _nativeAppService = nativeAppService;
+            _preferencesService = preferencesService;
+
+            CurrentSettings = _preferencesService.GetCurrentCalendarSettings();
+        }
+
+        public override void OnNavigatedTo(NavigationMode mode, object parameters)
+        {
+            base.OnNavigatedTo(mode, parameters);
+
+            Messenger.Send(new DetailsPageStateChangedMessage(true));
+
+            if (parameters == null || parameters is not CalendarItemViewModel passedCalendarItem)
+                return;
+
+            CurrentEvent = passedCalendarItem;
+        }
+
+        public override void OnNavigatedFrom(NavigationMode mode, object parameters)
+        {
+            base.OnNavigatedFrom(mode, parameters);
+
+            Messenger.Send(new DetailsPageStateChangedMessage(false));
+        }
+
+        [RelayCommand]
+        private async Task SaveAsync()
+        {
+
+        }
+
+        [RelayCommand]
+        private async Task DeleteAsync()
+        {
+
+        }
+
+        [RelayCommand]
+        private Task JoinOnline()
+        {
+            if (CurrentEvent == null || string.IsNullOrEmpty(CurrentEvent.CalendarItem.HtmlLink)) return Task.CompletedTask;
+
+            return _nativeAppService.LaunchUriAsync(new Uri(CurrentEvent.CalendarItem.HtmlLink));
+        }
+
+        [RelayCommand]
+        private async Task Respond(CalendarItemStatus status)
+        {
+            if (CurrentEvent == null) return;
+        }
+    }
+}