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

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

    public class BookedClosed : 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 BookedClosed(
           IBikeInfoMutable selectedBike,
           Func<bool> isConnectedDelegate,
           Func<bool, IConnector> connectorFactory,
           IGeolocation geolocation,
           Func<IPollingUpdateTaskManager> viewUpdateManager,
           ISmartDevice smartDevice,
           IViewService viewService,
           IBikesViewModel bikesViewModel,
           IUser activeUser) : base(
               selectedBike, 
               AppResources.ActionReturn, // Copri button text "Miete beenden"
               true, // Show button to enabled returning of bike.
               isConnectedDelegate,               
               connectorFactory,
               geolocation,
               viewUpdateManager,
               smartDevice,
               viewService,
               bikesViewModel,
               activeUser)
        {
            LockitButtonText = AppResources.ActionOpenAndPause;
            IsLockitButtonVisible = true; // Show button to enable opening lock in case user took a pause and does not want to return the bike.
        }

        /// <summary> Gets the bike state. </summary>
        public override InUseStateEnum State => InUseStateEnum.Booked;

        /// <summary> Return bike. </summary>
        public async Task<IRequestHandler> HandleRequestOption1() => await ReturnBike();

        /// <summary> Open bike and update COPRI lock state. </summary>
        public async Task<IRequestHandler> HandleRequestOption2() => await OpenLock();


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

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

            if (l_oResult == false)
            {
                // User aborted returning bike process
                Log.ForContext<BookedClosed>().Information("User selected booked bike {l_oId} in order to return but action was canceled.", SelectedBike.Id);

                BikesViewModel.IsIdle = true;
                return this;
            }

            // Lock list to avoid multiple taps while copri action is pending.
            Log.ForContext<BookedClosed>().Information("Request to return bike {bike} detected.", SelectedBike);

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

            BikesViewModel.ActionText = "Returning bike...";
            IsConnected = IsConnectedDelegate();

            var feedBackUri = SelectedBike?.OperatorUri;
            BookingFinishedModel bookingFinished;
            try
            {
                bookingFinished = await ConnectorFactory(IsConnected).Command.DoReturn(SelectedBike);

                // If canceling bike succedes remove bike because it is not ready to be booked again
                IsRemoveBikeRequired = true;
            }
            catch (Exception exception)
            {
                BikesViewModel.ActionText = string.Empty;

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

                    await ViewService.DisplayAdvancedAlert(
                        AppResources.ErrorReturnBikeNoWebTitle,
                        string.Format("{0}\r\n{1}", AppResources.ErrorReturnBikeNoWebMessage, WebConnectFailureException.GetHintToPossibleExceptionsReasons),
                        exception.Message,
                        AppResources.MessageAnswerOk);
                }
                else if (exception is NotAtStationException notAtStationException)
                {
                    // COPRI returned an error.
                    Log.ForContext<BookedClosed>().Information("User selected booked bike {bike} but returning failed. COPRI returned an not at station error.", SelectedBike);

                    await ViewService.DisplayAlert(
                        AppResources.ErrorReturnBikeTitle,
                        string.Format(AppResources.ErrorReturnBikeNotAtStationMessage, notAtStationException.StationNr, notAtStationException.Distance),
                        AppResources.MessageAnswerOk);
                }
                else if (exception is NoGPSDataException)
                {
                    // COPRI returned an error.
                    Log.ForContext<BookedClosed>().Information("User selected booked bike {bike} but returing failed. COPRI returned an no GPS- data error.", SelectedBike);

                    await ViewService.DisplayAlert(
                        AppResources.ErrorReturnBikeTitle,
                        string.Format(AppResources.ErrorReturnBikeLockClosedNoGPSMessage),
                        AppResources.MessageAnswerOk);
                }
                else if (exception is ResponseException copriException)
                {
                    // COPRI returned an error.
                    Log.ForContext<BookedClosed>().Information("User selected booked bike {bike} but returing failed. COPRI returned an error.", SelectedBike);

                    await ViewService.DisplayAdvancedAlert(
                        "Statusfehler beim Zurückgeben des Rads!",
                        copriException.Message,
                        copriException.Response,
                        "OK");
                }
                else
                {
                    Log.ForContext<BookedClosed>().Error("User selected booked bike {bike} but returning failed. {@l_oException}", SelectedBike.Id, exception);

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

                BikesViewModel.ActionText = AppResources.ActivityTextStartingUpdater;
                await ViewUpdateManager().StartUpdateAyncPeridically();
                BikesViewModel.ActionText = "";
                BikesViewModel.IsIdle = true;
                return RequestHandlerFactory.Create(SelectedBike, IsConnectedDelegate, ConnectorFactory, Geolocation, ViewUpdateManager, SmartDevice, ViewService, BikesViewModel, ActiveUser);
            }

            Log.ForContext<BookedClosed>().Information("User returned bike {bike} successfully.", SelectedBike);

#if !USERFEEDBACKDLG_OFF
            // Do get Feedback
            var feedback = await ViewService.DisplayUserFeedbackPopup(bookingFinished?.Co2Saving);

            try
            {
                await ConnectorFactory(IsConnected).Command.DoSubmitFeedback(
                     new UserFeedbackDto { BikeId = SelectedBike.Id, IsBikeBroken = feedback.IsBikeBroken, Message = feedback.Message },
                    feedBackUri);
            }
            catch (Exception exception)
            {
                BikesViewModel.ActionText = string.Empty;

                if (exception is ResponseException copriException)
                {
                    // Copri server is not reachable.
                    Log.ForContext<BookedClosed>().Information("Submitting feedback for bike {bike} failed. COPRI returned an error.", SelectedBike);
                }
                else
                {
                    Log.ForContext<BookedClosed>().Error("Submitting feedback for bike {bike} failed. {@l_oException}", SelectedBike.Id, exception);
                }

                await ViewService.DisplayAlert(
                    AppResources.ErrorReturnSubmitFeedbackTitle,
                    AppResources.ErrorReturnSubmitFeedbackMessage,
                    AppResources.MessageAnswerOk);


                BikesViewModel.ActionText = AppResources.ActivityTextStartingUpdater;
                await ViewUpdateManager().StartUpdateAyncPeridically();

                BikesViewModel.ActionText = string.Empty;
                BikesViewModel.IsIdle = true;
                return RequestHandlerFactory.Create(SelectedBike, IsConnectedDelegate, ConnectorFactory, Geolocation, ViewUpdateManager, SmartDevice, ViewService, BikesViewModel, ActiveUser);
            }
#endif
            if (bookingFinished != null && bookingFinished.MiniSurvey.Questions.Count > 0)
            {
                await ViewService.PushModalAsync(ViewTypes.MiniSurvey);
            }

            // Restart polling again.
            BikesViewModel.ActionText = AppResources.ActivityTextStartingUpdater;
            await ViewUpdateManager().StartUpdateAyncPeridically();
            BikesViewModel.ActionText = string.Empty;
            BikesViewModel.IsIdle = true;
            return RequestHandlerFactory.Create(SelectedBike, IsConnectedDelegate, ConnectorFactory, Geolocation, ViewUpdateManager, SmartDevice, ViewService, BikesViewModel, ActiveUser);
        }

        /// <summary> Open bike and update COPRI lock state. </summary>
        public async Task<IRequestHandler> OpenLock()
        {
            // Unlock bike.
            Log.ForContext<BookedClosed>().Information("User request to unlock bike {bike}.", SelectedBike);

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

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

                if (exception is OutOfReachException)
                {
                    Log.ForContext<BookedClosed>().Debug("Lock can not be opened. {Exception}", exception);

                    await ViewService.DisplayAlert(
                        AppResources.ErrorOpenLockTitle,
                        AppResources.ErrorOpenLockOutOfReachMessage,
                        AppResources.MessageAnswerOk);
                }
                else if (exception is CouldntOpenBoldIsBlockedException)
                {
                    Log.ForContext<BookedClosed>().Debug("Lock can not be opened. Bold is blocked. {Exception}", exception);

                    await ViewService.DisplayAlert(
                        AppResources.ErrorOpenLockTitle,
                        AppResources.ErrorOpenLockBoldBlockedMessage,
                        AppResources.MessageAnswerOk);
                }
                else if (exception is CouldntOpenBoldWasBlockedException)
                {
                    Log.ForContext<BookedClosed>().Debug("Lock can not be opened. Bold was or is blocked. {Exception}", exception);

                    await ViewService.DisplayAlert(
                        AppResources.ErrorOpenLockStillOpenTitle,
                        AppResources.ErrorOpenLockBoldWasBlockedMessage,
                        "OK");
                }
                else
                {
                    Log.ForContext<BookedClosed>().Error("Lock can not be opened. {Exception}", exception);

                    await ViewService.DisplayAlert(
                        AppResources.ErrorOpenLockTitle,
                        exception.Message,
                        "OK");
                }

                // When bold is blocked lock is still closed even if exception occurres.
                // In all other cases state is supposed to be unknown. Example: Lock is out of reach and no more bluetooth connected.
                SelectedBike.LockInfo.State = exception is StateAwareException stateAwareException
                    ? stateAwareException.State
                    : LockingState.UnknownDisconnected;

                BikesViewModel.ActionText = AppResources.ActivityTextStartingUpdater;
                await ViewUpdateManager().StartUpdateAyncPeridically();
                BikesViewModel.ActionText = string.Empty;
                BikesViewModel.IsIdle = true;
                return RequestHandlerFactory.Create(SelectedBike, IsConnectedDelegate, ConnectorFactory, Geolocation, ViewUpdateManager, SmartDevice, ViewService, BikesViewModel, ActiveUser);
            }

            Log.ForContext<BookedClosed>().Information("User paused ride using {bike} successfully.", SelectedBike);
            BikesViewModel.ActionText = AppResources.ActivityTextStartingUpdater;
            await ViewUpdateManager().StartUpdateAyncPeridically();
            BikesViewModel.ActionText = string.Empty;
            BikesViewModel.IsIdle = true;
            return RequestHandlerFactory.Create(SelectedBike, IsConnectedDelegate, ConnectorFactory, Geolocation, ViewUpdateManager, SmartDevice, ViewService, BikesViewModel, ActiveUser);
        }
    }
}