sharee.bike-App/TINKLib/ViewModel/Bikes/Bike/BC/RequestHandler/Booked.cs

using System;
using System.Threading.Tasks;
using Serilog;
using TINK.Model.Bikes.BikeInfoNS.BC;
using TINK.Model.User;
using TINK.MultilingualResources;
using TINK.View;

namespace TINK.ViewModel.Bikes.Bike.BC.RequestHandler
{
	public class Booked : IRequestHandler
	{
		/// <summary>
		/// If a bike is booked unbooking can not be done by though app.
		/// </summary>
		public bool IsButtonVisible => false;

		/// <summary>
		/// Gets the name of the button when bike is cancel reservation.
		/// </summary>
		public string ButtonText => AppResources.ActionReturn; // "Miete beenden"

		/// <summary>
		/// Reference on view service to show modal notifications and to perform navigation.
		/// </summary>
		protected IViewService ViewService { get; }

		/// <summary>View model to be used for progress report and unlocking/ locking view.</summary>
		public IBikesViewModel BikesViewModel { get; }

		/// <summary> Executes user request to cancel reservation. </summary>
		public async Task<IRequestHandler> HandleRequest()
		{
			// Lock list to avoid multiple taps while copri action is pending.
			BikesViewModel.ActionText = AppResources.ActivityTextOneMomentPlease;
			BikesViewModel.IsIdle = false;

			Log.ForContext<BikesViewModel>().Error("User selected booked bike {l_oId}.", SelectedBike.Id);

			BikesViewModel.ActionText = string.Empty;
			await ViewService.DisplayAlert(
				string.Empty,
				"Rückgabe nur über Bordcomputer des Fahrrads durch Drücken der Taste 2 möglich!",
				"Ok");

			BikesViewModel.IsIdle = true;
			return this;
		}

		/// <summary>
		/// Bike to display.
		/// </summary>
		protected IBikeInfoMutable SelectedBike { get; }

		/// <summary>Gets the is connected state. </summary>
		public bool IsConnected { get; set; }

		/// <summary> Gets if the bike has to be removed after action has been completed. </summary>
		public bool IsRemoveBikeRequired => false;

		/// <param name="bikesViewModel">View model to be used for progress report and unlocking/ locking view.</param>
		public Booked(
			IBikeInfoMutable selectedBike,
			IViewService viewService,
			IBikesViewModel bikesViewModel,
			IUser activeUser)
		{
			SelectedBike = selectedBike;
			ViewService = viewService;
			BikesViewModel = bikesViewModel
								?? throw new ArgumentException($"Can not construct {GetType().Name}-object. {nameof(bikesViewModel)} must not be null.");
		}
	}
}