using System;
using System.Threading.Tasks;
using ShareeBike.Model.Connector;
using ShareeBike.Model.Device;
using ShareeBike.Model.User;
using ShareeBike.MultilingualResources;
using ShareeBike.Services.BluetoothLock;
using ShareeBike.Services.Geolocation;
using ShareeBike.View;
using IBikeInfoMutable = ShareeBike.Model.Bikes.BikeInfoNS.BluetoothLock.IBikeInfoMutable;
using CancelReservationCommand = ShareeBike.Model.Bikes.BikeInfoNS.BikeNS.Command.CancelReservationCommand;
using StartRentalCommand = ShareeBike.Model.Bikes.BikeInfoNS.BikeNS.Command.StartRentalCommand;
using static ShareeBike.ViewModel.Bikes.Bike.BluetoothLock.RequestHandlerFactory;

namespace ShareeBike.ViewModel.Bikes.Bike.BluetoothLock.RequestHandler
{
	/// <summary> Bike is reserved, lock is closed and connected to app. </summary>
	/// <remarks> 
	/// Occurs when 
	/// - bike was reserved out of reach and is in reach now
	/// - bike is reserved while in reach
	/// </remarks>
	public class ReservedClosed : Base, IRequestHandler, CancelReservationCommand.ICancelReservationCommandListener, StartRentalCommand.IStartRentalCommandListener
	{
		/// <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 ReservedClosed(
		   IBikeInfoMutable selectedBike,
		   Func<bool> isConnectedDelegate,
		   Func<bool, IConnector> connectorFactory,
		   IGeolocationService geolocation,
		   ILocksService lockService,
		   Func<IPollingUpdateTaskManager> viewUpdateManager,
		   ISmartDevice smartDevice,
		   IViewService viewService,
		   IBikesViewModel bikesViewModel,
		   IUser activeUser) : base(
			   selectedBike,
			   AppResources.ActionCancelReservation, // Cancel Reservation
			   true, // Show button
			   isConnectedDelegate,
			   connectorFactory,
			   geolocation,
			   lockService,
			   viewUpdateManager,
			   smartDevice,
			   viewService,
			   bikesViewModel,
			   activeUser)
		{
			LockitButtonText = AppResources.ActionOpenLockAndRentBike; // Rent Bike
			IsLockitButtonVisible = true; // Show button

			_cancelReservationActionViewModel = new CancelReservationActionViewModel<ReservedClosed>(
				selectedBike,
				viewUpdateManager,
				viewService,
				bikesViewModel);

			_startRentalActionViewModel = new StartReservationOrRentalActionViewModel<ReservedClosed>(
				selectedBike,
				viewUpdateManager,
				viewService,
				bikesViewModel);
		}

		/// <summary>
		/// Holds the view model for requesting a bike action.
		/// </summary>
		private readonly CancelReservationActionViewModel<ReservedClosed> _cancelReservationActionViewModel;

		/// <summary>
		/// Processes the canceling of reservation progress.
		/// </summary>
		/// <remarks>
		/// Only used for testing.
		/// </remarks>
		/// <param name="step">Current step to process.</param>
		public void ReportStep(CancelReservationCommand.Step step) => _cancelReservationActionViewModel?.ReportStep(step);

		/// <summary>
		/// Processes the canceling of reservation state.
		/// </summary>
		/// <remarks>
		/// Only used for testing.
		/// </remarks>
		/// <param name="state">State to process.</param>
		/// <param name="details">Textual details describing current state.</param>
		public async Task ReportStateAsync(CancelReservationCommand.State state, string details) => await _cancelReservationActionViewModel.ReportStateAsync(state, details);


		/// <summary>
		/// Holds the view model for requesting a bike action.
		/// </summary>
		private readonly StartReservationOrRentalActionViewModel<ReservedClosed> _startRentalActionViewModel;

		/// <summary>
		/// Processes the renting a bike progress.
		/// </summary>
		/// <remarks>
		/// Only used for testing.
		/// </remarks>
		/// <param name="step">Current step to process.</param>
		public void ReportStep(StartRentalCommand.Step step) => _startRentalActionViewModel?.ReportStep(step);

		/// <summary>
		/// Processes the renting a bike state.
		/// </summary>
		/// <remarks>
		/// Only used for testing.
		/// </remarks>
		/// <param name="state">State to process.</param>
		/// <param name="details">Textual details describing current state.</param>
		public async Task ReportStateAsync(StartRentalCommand.State state, string details) => await _startRentalActionViewModel.ReportStateAsync(state, details);


		/// <summary> Cancel reservation. </summary>
		public async Task<IRequestHandler> HandleRequestOption1()
		{
			await _cancelReservationActionViewModel.CancelReservationAsync();
			return Create(
				SelectedBike,
				IsConnectedDelegate,
				ConnectorFactory,
				GeolocationService,
				LockService,
				ViewUpdateManager,
				SmartDevice,
				ViewService,
				BikesViewModel,
				ActiveUser);
		}

		/// <summary> Open lock and rent bike. </summary>
		public async Task<IRequestHandler> HandleRequestOption2()
		{
			await _startRentalActionViewModel.StartReservationOrRentalAsync();
			if (_startRentalActionViewModel.ContinueWithOpenLock == false)
			{
				return Create(
					SelectedBike,
					IsConnectedDelegate,
					ConnectorFactory,
					GeolocationService,
					LockService,
					ViewUpdateManager,
					SmartDevice,
					ViewService,
					BikesViewModel,
					ActiveUser);
			}

			var _openLockActionViewModel = new OpenLockActionViewModel<BookedClosed>(
				SelectedBike,
				ViewUpdateManager,
				ViewService,
				BikesViewModel);

			await _openLockActionViewModel.OpenLockAsync();
			return Create(
				SelectedBike,
				IsConnectedDelegate,
				ConnectorFactory,
				GeolocationService,
				LockService,
				ViewUpdateManager,
				SmartDevice,
				ViewService,
				BikesViewModel,
				ActiveUser);
		}
	}
}