using System.Threading.Tasks;
using NSubstitute;
using NUnit.Framework;
using ShareeBike.Model.Bikes.BikeInfoNS.BluetoothLock;
using ShareeBike.View;
using ShareeBike.ViewModel;
using ShareeBike.ViewModel.Bikes;
using ShareeBike.ViewModel.Bikes.Bike.BluetoothLock.RequestHandler;
using CancelReservationCommand = ShareeBike.Model.Bikes.BikeInfoNS.BikeNS.Command.CancelReservationCommand;
using DisconnectCommand = ShareeBike.Model.Bikes.BikeInfoNS.BluetoothLock.Command.DisconnectCommand;
using ShareeBike.ViewModel.Bikes.Bike;
using ShareeBike.Model.State;
using NSubstitute.Core.Arguments;
using ShareeBike.Model.Bikes.BikeInfoNS.BikeNS.Command;

namespace SharedBusinessLogic.Tests.ViewModel.Bikes.Bike
{
	[TestFixture]
	public class TestCancelReservationActionViewModel
	{
		[Test]
		public async Task TestCancelReservation()
		{
			var bike = Substitute.For<IBikeInfoMutable>();
			var pollingManager = Substitute.For<IPollingUpdateTaskManager>();
			var viewService = Substitute.For<IViewService>();
			var bikesViewModel = Substitute.For<IBikesViewModel>();
			var listener = Substitute.For<CancelReservationCommand.ICancelReservationCommandListener>();

			var cancelReservationActionViewModel = new CancelReservationActionViewModel<ReservedClosed>(
				bike,
				() => pollingManager,
				viewService,
				bikesViewModel);

			bike.Id.Returns("0");
			bike.State.Value.Returns(InUseStateEnum.Reserved);

			bike.CancelReservationAsync(Arg.Any<CancelReservationCommand.ICancelReservationCommandListener>()).Returns(x =>
			{
				cancelReservationActionViewModel.ReportStep(CancelReservationCommand.Step.CancelReservation);
				return Task.CompletedTask;
			});

			bike.LockInfo.State.Returns(LockingState.Closed);

			bike.DisconnectAsync(Arg.Any<DisconnectCommand.IDisconnectCommandListener>()).Returns(x =>
			{
				cancelReservationActionViewModel.ReportStep(DisconnectCommand.Step.DisconnectLock);
				return Task.CompletedTask;
			});

			await cancelReservationActionViewModel.CancelReservationAsync();

			bike.State.Value.Returns(InUseStateEnum.Disposable);
			bike.LockInfo.State.Returns(LockingState.UnknownDisconnected);

			// Verify behavior
			Received.InOrder(() =>
			{
				bikesViewModel.Received(1).IsIdle = false; // GUI must be locked
				bikesViewModel.ActionText = "One moment please...";
				pollingManager.StopAsync(); // Polling must be stopped before any COPR and lock service action

				bikesViewModel.ActionText = "Canceling reservation...";

				bikesViewModel.ActionText = "Disconnecting lock...";

				bikesViewModel.ActionText = "One moment please...";
				pollingManager.StartAsync(); // polling must be restarted again
				bikesViewModel.ActionText = string.Empty;
				bikesViewModel.Received(1).IsIdle = true; // GUI must be unlocked
			});
		}

		[Test]
		public async Task TestCancelReservationException()
		{
			var bike = Substitute.For<IBikeInfoMutable>();
			var pollingManager = Substitute.For<IPollingUpdateTaskManager>();
			var viewService = Substitute.For<IViewService>();
			var bikesViewModel = Substitute.For<IBikesViewModel>();
			var listener = Substitute.For<CancelReservationCommand.ICancelReservationCommandListener>();

			var cancelReservationActionViewModel = new CancelReservationActionViewModel<ReservedClosed>(
				bike,
				() => pollingManager,
				viewService,
				bikesViewModel);

			bike.Id.Returns("0");
			bike.State.Value.Returns(InUseStateEnum.Reserved);

			bike.CancelReservationAsync(Arg.Any<CancelReservationCommand.ICancelReservationCommandListener>()).Returns(x =>
			{
				cancelReservationActionViewModel.ReportStep(CancelReservationCommand.Step.CancelReservation);
				cancelReservationActionViewModel.ReportStateAsync(CancelReservationCommand.State.GeneralCancelReservationError, "details").Wait();
				return Task.CompletedTask;
			});

			await cancelReservationActionViewModel.CancelReservationAsync();

			bike.State.Value.Returns(InUseStateEnum.Reserved);

			// Verify behavior
			Received.InOrder(() =>
			{
				bikesViewModel.Received(1).IsIdle = false; // GUI must be locked
				bikesViewModel.ActionText = "One moment please...";
				pollingManager.StopAsync(); // Polling must be stopped before any COPR and lock service action

				bikesViewModel.ActionText = "Canceling reservation...";
				bikesViewModel.ActionText = string.Empty;
				viewService.DisplayAdvancedAlert(
					"Reservation could not be canceled!",
					"details",
					"Please try again.",
					"OK");

				bikesViewModel.ActionText = "One moment please...";
				pollingManager.StartAsync(); // polling must be restarted again
				bikesViewModel.ActionText = string.Empty;
				bikesViewModel.Received(1).IsIdle = true; // GUI must be unlocked
			});
		}

		[Test]
		public async Task TestCancelReservationNoWebException()
		{
			var bike = Substitute.For<IBikeInfoMutable>();
			var pollingManager = Substitute.For<IPollingUpdateTaskManager>();
			var viewService = Substitute.For<IViewService>();
			var bikesViewModel = Substitute.For<IBikesViewModel>();
			var listener = Substitute.For<CancelReservationCommand.ICancelReservationCommandListener>();

			var cancelReservationActionViewModel = new CancelReservationActionViewModel<ReservedClosed>(
				bike,
				() => pollingManager,
				viewService,
				bikesViewModel);

			bike.Id.Returns("0");
			bike.State.Value.Returns(InUseStateEnum.Reserved);

			bike.CancelReservationAsync(Arg.Any<CancelReservationCommand.ICancelReservationCommandListener>()).Returns(x =>
			{
				cancelReservationActionViewModel.ReportStep(CancelReservationCommand.Step.CancelReservation);
				cancelReservationActionViewModel.ReportStateAsync(CancelReservationCommand.State.WebConnectFailed, "details").Wait();
				return Task.CompletedTask;
			});

			await cancelReservationActionViewModel.CancelReservationAsync();

			bike.State.Value.Returns(InUseStateEnum.Reserved);

			// Verify behavior
			Received.InOrder(() =>
			{
				bikesViewModel.Received(1).IsIdle = false; // GUI must be locked
				bikesViewModel.ActionText = "One moment please...";
				pollingManager.StopAsync(); // Polling must be stopped before any COPR and lock service action

				bikesViewModel.ActionText = "Canceling reservation...";
				bikesViewModel.ActionText = string.Empty;
				viewService.DisplayAlert(
					"Connection to booking system not possible.",
					"A stable Internet connection is required. Connect to WIFI or to mobile network and activate mobile data. Try again.",
					"OK"
				);

				bikesViewModel.ActionText = "One moment please...";
				pollingManager.StartAsync(); // polling must be restarted again
				bikesViewModel.ActionText = string.Empty;
				bikesViewModel.Received(1).IsIdle = true; // GUI must be unlocked
			});
		}

		[Test]
		public async Task TestCancelReservationInvalidResponseException()
		{
			var bike = Substitute.For<IBikeInfoMutable>();
			var pollingManager = Substitute.For<IPollingUpdateTaskManager>();
			var viewService = Substitute.For<IViewService>();
			var bikesViewModel = Substitute.For<IBikesViewModel>();
			var listener = Substitute.For<CancelReservationCommand.ICancelReservationCommandListener>();

			var cancelReservationActionViewModel = new CancelReservationActionViewModel<ReservedClosed>(
				bike,
				() => pollingManager,
				viewService,
				bikesViewModel);

			bike.Id.Returns("0");
			bike.State.Value.Returns(InUseStateEnum.Reserved);

			bike.CancelReservationAsync(Arg.Any<CancelReservationCommand.ICancelReservationCommandListener>()).Returns(x =>
			{
				cancelReservationActionViewModel.ReportStep(CancelReservationCommand.Step.CancelReservation);
				cancelReservationActionViewModel.ReportStateAsync(CancelReservationCommand.State.InvalidResponse, "details").Wait();
				return Task.CompletedTask;
			});

			await cancelReservationActionViewModel.CancelReservationAsync();

			bike.State.Value.Returns(InUseStateEnum.Reserved);

			// Verify behavior
			Received.InOrder(() =>
			{
				bikesViewModel.Received(1).IsIdle = false; // GUI must be locked
				bikesViewModel.ActionText = "One moment please...";
				pollingManager.StopAsync(); // Polling must be stopped before any COPR and lock service action

				bikesViewModel.ActionText = "Canceling reservation...";
				bikesViewModel.ActionText = string.Empty;
				viewService.DisplayAlert(
					"Reservation could not be canceled!",
					"Your session has expired. Please login new and try again.",
					"OK"
				);

				bikesViewModel.ActionText = "One moment please...";
				pollingManager.StartAsync(); // polling must be restarted again
				bikesViewModel.ActionText = string.Empty;
				bikesViewModel.Received(1).IsIdle = true; // GUI must be unlocked
			});
		}
	}
}