sharee.bike-App/TINKLib/ViewModel/Bikes/Bike/CopriLock/RequestHandler/DisposableClosed.cs

using System;
using System.Threading.Tasks;
using Serilog;
using TINK.Model.Bikes.BikeInfoNS.CopriLock;
using TINK.Model.Connector;
using TINK.Model.Device;
using TINK.Model.State;
using TINK.Model.User;
using TINK.MultilingualResources;
using TINK.Repository.Exception;
using TINK.View;

namespace TINK.ViewModel.Bikes.Bike.CopriLock.RequestHandler
{
    using IRequestHandler = BluetoothLock.IRequestHandler;

    public class DisposableClosed : Base, IRequestHandler
    {
        /// <param name="smartDevice">Provides info about the smart device (phone, tablet, ...).</param>
        /// <param name="bikesViewModel">View model to be used for progress report and unlocking/ locking view.</param>
        public DisposableClosed(
           IBikeInfoMutable selectedBike,
           Func<bool> isConnectedDelegate,
           Func<bool, IConnector> connectorFactory,
           Func<IPollingUpdateTaskManager> viewUpdateManager,
           ISmartDevice smartDevice,
           IViewService viewService,
           IBikesViewModel bikesViewModel,
           IUser activeUser) : base(
               selectedBike,
               AppResources.ActionOpenAndBook, // Button text: "Schloss öffnen & Rad mieten"
               true, // Show copri button to enable booking and opening
               isConnectedDelegate,
               connectorFactory,
               viewUpdateManager,
               smartDevice,
               viewService,
               bikesViewModel,
               activeUser)
        {
            LockitButtonText = AppResources.ActionRequest; // Copri text: "Rad reservieren"
            IsLockitButtonVisible = true;
        }

        /// <summary>Reserve bike and connect to lock.</summary>
        public async Task<IRequestHandler> HandleRequestOption1() => await BookAndRelease();

        public async Task<IRequestHandler> HandleRequestOption2() => await Reserve();

        /// <summary>Book bike and open lock.</summary>
        public async Task<IRequestHandler> BookAndRelease()
        {
            BikesViewModel.IsIdle = false;

            // Ask whether to really book bike?
            var alertResult = await ViewService.DisplayAlert(
                string.Empty,
                string.Format(AppResources.QuestionOpenLockAndBookBike, SelectedBike.GetFullDisplayName()),
                AppResources.MessageAnswerYes,
                AppResources.MessageAnswerNo);

            if (alertResult == false)
            {
                // User aborted booking process
                Log.ForContext<DisposableClosed>().Information("User selected bike {bike} in order to book and release bike from station but action was cancelled.", SelectedBike);

                BikesViewModel.IsIdle = true;
                return this;
            }

            // Book and release bike from station.
            Log.ForContext<DisposableClosed>().Information("User selected bike {bike} in order to book and release bike from station.", SelectedBike);

            // Stop polling before returning bike.
            BikesViewModel.ActionText = AppResources.ActivityTextOneMomentPlease;
            await ViewUpdateManager().StopUpdatePeridically();

            // Book bike prior to opening lock.
            BikesViewModel.ActionText = AppResources.ActivityTextRentingBike;
            IsConnected = IsConnectedDelegate();
            try
            {
                await ConnectorFactory(IsConnected).Command.BookAndOpenAync(SelectedBike);
            }
            catch (Exception exception)
            {
                BikesViewModel.ActionText = string.Empty;

                if (exception is WebConnectFailureException)
                {
                    // Copri server is not reachable.
                    Log.ForContext<DisposableClosed>().Information("User selected bike {id} but booking failed (Copri server not reachable).", SelectedBike.Id);

                    await ViewService.DisplayAdvancedAlert(
                        AppResources.MessageRentingBikeErrorConnectionTitle,
                        WebConnectFailureException.GetHintToPossibleExceptionsReasons,
                        exception.Message,
                        AppResources.MessageAnswerOk);
                }
                else
                {
                    Log.ForContext<DisposableClosed>().Error("User selected bike {id} but booking failed. {@exception}", SelectedBike.Id, exception);

                    await ViewService.DisplayAlert(
                        AppResources.MessageRentingBikeErrorGeneralTitle,
                        exception.Message,
                        AppResources.MessageAnswerOk);
                }

                BikesViewModel.ActionText = AppResources.ActivityTextStartingUpdater;
                await ViewUpdateManager().StartUpdateAyncPeridically(); // Restart polling again.
                BikesViewModel.ActionText = string.Empty;
                BikesViewModel.IsIdle = true; // Unlock GUI

                return RequestHandlerFactory.Create(SelectedBike, IsConnectedDelegate, ConnectorFactory, ViewUpdateManager, SmartDevice, ViewService, BikesViewModel, ActiveUser);
            }

            Log.ForContext<DisposableClosed>().Information("User booked and released bike {bike} successfully.", SelectedBike);
            BikesViewModel.ActionText = AppResources.ActivityTextStartingUpdater;
            await ViewUpdateManager().StartUpdateAyncPeridically(); // Restart polling again.
            BikesViewModel.ActionText = string.Empty;
            BikesViewModel.IsIdle = true; // Unlock GUI
            return RequestHandlerFactory.Create(SelectedBike, IsConnectedDelegate, ConnectorFactory, ViewUpdateManager, SmartDevice, ViewService, BikesViewModel, ActiveUser);
        }

        /// <summary>Reserve bike.</summary>
        public async Task<IRequestHandler> Reserve()
        {
            BikesViewModel.IsIdle = false;

            // Ask whether to really reserve bike?
            var alertResult = await ViewService.DisplayAlert(
                string.Empty,
                string.Format(AppResources.QuestionReserveBike, SelectedBike.GetFullDisplayName(), StateRequestedInfo.MaximumReserveTime.Minutes),
                AppResources.MessageAnswerYes,
                AppResources.MessageAnswerNo);

            if (alertResult == false)
            {
                // User aborted booking process
                Log.ForContext<DisposableClosed>().Information("User selected availalbe bike {bike} in order to reserve but action was canceled.", SelectedBike);
                BikesViewModel.IsIdle = true;
                return this;
            }

            Log.ForContext<DisposableClosed>().Information("Request to reserve for bike {bike} detected.", SelectedBike);
            BikesViewModel.ActionText = AppResources.ActivityTextOneMomentPlease;

            // Stop polling before requesting bike.
            await ViewUpdateManager().StopUpdatePeridically();

            BikesViewModel.ActionText = AppResources.ActivityTextReservingBike;
            IsConnected = IsConnectedDelegate();

            try
            {
                await ConnectorFactory(IsConnected).Command.DoReserve(SelectedBike);
            }
            catch (Exception exception)
            {
                BikesViewModel.ActionText = string.Empty;

                if (exception is BookingDeclinedException)
                {
                    // Too many bikes booked.
                    Log.ForContext<DisposableClosed>().Information("Request declined because maximum count of bikes {l_oException.MaxBikesCount} already requested/ booked.", (exception as BookingDeclinedException).MaxBikesCount);

                    await ViewService.DisplayAlert(
                        AppResources.MessageTitleHint,
                        string.Format(AppResources.MessageReservationBikeErrorTooManyReservationsRentals, SelectedBike.GetFullDisplayName(), (exception as BookingDeclinedException).MaxBikesCount),
                        AppResources.MessageAnswerOk);
                }
                else if (exception is WebConnectFailureException)
                {
                    // Copri server is not reachable.
                    Log.ForContext<DisposableClosed>().Information("User selected availalbe bike {bike} but reserving failed (Copri server not reachable).", SelectedBike);

                    await ViewService.DisplayAdvancedAlert(
                        AppResources.MessageReservingBikeErrorConnectionTitle,
                        WebConnectFailureException.GetHintToPossibleExceptionsReasons,
                        exception.Message,
                        AppResources.MessageAnswerOk);
                }
                else
                {
                    Log.ForContext<DisposableClosed>().Error("User selected availalbe bike {bike} but reserving failed. {@exception}", SelectedBike, exception);

                    await ViewService.DisplayAlert(
                        AppResources.MessageReservingBikeErrorGeneralTitle,
                        exception.Message,
                        AppResources.MessageAnswerOk);
                }

                // Restart polling again.
                BikesViewModel.ActionText = AppResources.ActivityTextStartingUpdater;
                await ViewUpdateManager().StartUpdateAyncPeridically();
                BikesViewModel.ActionText = string.Empty;
                BikesViewModel.IsIdle = true;
                return this;
            }

            Log.ForContext<DisposableClosed>().Information("User reserved bike {bike} successfully.", SelectedBike);
            BikesViewModel.ActionText = AppResources.ActivityTextStartingUpdater;
            await ViewUpdateManager().StartUpdateAyncPeridically(); // Restart polling again.
            BikesViewModel.ActionText = string.Empty;
            BikesViewModel.IsIdle = true; // Unlock GUI
            return RequestHandlerFactory.Create(SelectedBike, IsConnectedDelegate, ConnectorFactory, ViewUpdateManager, SmartDevice, ViewService, BikesViewModel, ActiveUser);
        }
    }
}