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

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,
           IGeolocation geolocation,
           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 reserving and opening
               isConnectedDelegate,
               connectorFactory,
               geolocation,
               viewUpdateManager,
               smartDevice,
               viewService,
               bikesViewModel,
               activeUser)
        {
            LockitButtonText = GetType().Name;
            IsLockitButtonVisible = false; // If bike is not reserved/ booked app can not connect to lock
        }

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

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

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

        /// <summary>Reserve bike and connect to lock.</summary>
        public async Task<IRequestHandler> BookAndOpen()
        {
            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 recently requested bike {bike} in order to reserve but did deny to book bike.", SelectedBike);

                // Restart polling again.
                BikesViewModel.IsIdle = true;
                return RequestHandlerFactory.Create(SelectedBike, IsConnectedDelegate, ConnectorFactory, Geolocation, ViewUpdateManager, SmartDevice, ViewService, BikesViewModel, ActiveUser);
            }

            Log.ForContext<DisposableClosed>().Information("User selected recently requested bike {bike} in order to book.", SelectedBike);

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

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

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

                    await ViewService.DisplayAdvancedAlert(
                        AppResources.MessageRentingBikeErrorGeneralTitle,
                        string.Empty,
                        l_oException.Message,
                        AppResources.MessageAnswerOk);
                }

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

            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, Geolocation, ViewUpdateManager, SmartDevice, ViewService, BikesViewModel, ActiveUser);
        }

        /// <summary> Requst is not supported, button should be disabled. </summary>
        /// <returns></returns>
        public async Task<IRequestHandler> UnsupportedRequest()
        {
            Log.ForContext<DisposableClosed>().Error("Click of unsupported button click detected.");
            return await Task.FromResult<IRequestHandler>(this);
        }
    }
}