using System;
using System.Threading;
using System.Threading.Tasks;
using NSubstitute;
using NUnit.Framework;
using ShareeBike.Model.Bikes.BikeInfoNS.BluetoothLock;
using ShareeBike.Model.Connector;
using ShareeBike.Model.State;
using ShareeBike.Repository.Request;
using ShareeBike.Services.BluetoothLock;
using ShareeBike.Services.BluetoothLock.Tdo;
using ShareeBike.Services.Geolocation;
using Geolocation = ShareeBike.Services.Geolocation.Geolocation;
using static ShareeBike.Model.Bikes.BikeInfoNS.BluetoothLock.Command.CloseCommand;
using NSubstitute.ExceptionExtensions;
using ShareeBike.Services.BluetoothLock.Exception;
using ShareeBike.Repository.Exception;
using Newtonsoft.Json;
using ShareeBike.Repository.Response;
using ShareeBike.ViewModel;

namespace SharedBusinessLogic.Tests.Model.Bikes.BikeInfoNS.BluetoothLock.Command
{
	[TestFixture]
	public class TestCloseCommand
	{
		/// <summary>
		/// Use case: Close lock
		/// </summary>
		[Test]
		public async Task TestClose()
		{
			var bike = Substitute.For<IBikeInfoMutable>();
			var connector = Substitute.For<IConnector>();
			var geolocation = Substitute.For<IGeolocationService>();
			var locks = Substitute.For<ILocksService>();
			var listener = Substitute.For<ICloseCommandListener>();
			var viewUpdateManager = Substitute.For<IPollingUpdateTaskManager>();

			geolocation.GetAsync(Arg.Any<CancellationToken?>(), Arg.Any<DateTime?>()).Returns(new Geolocation.Builder { Latitude = 47.99, Longitude = 7.78 }.Build());

			locks[0].CloseAsync()
				.Returns(Task.FromResult((LockitLockingState?)LockitLockingState.Closed)); // Return lock state indicating success

			bike.State.Value.Returns(InUseStateEnum.Booked);
			bike.LockInfo.State.Returns(LockingState.Open);

			await InvokeAsync<TestCloseCommand>(
				bike,
				geolocation,
				locks,
				() => true, // isConnectedDelegate
				(isConnected) => connector,
				listener, null);

			// Verify that location is kept because bike might be returned later.
			Assert.That(
				bike.LockInfo.Location.Latitude,
				Is.EqualTo(47.99).Within(0.001));
			Assert.That(
				bike.LockInfo.Location.Longitude,
				Is.EqualTo(7.78).Within(0.001));

			Assert.That(
				bike.LockInfo.State,
				Is.EqualTo(LockingState.Closed));

			// Verify behavior
			Received.InOrder(async () =>
			{
				listener.Received().ReportStep(Step.StartingQueryingLocation);
				await geolocation.GetAsync(Arg.Any<CancellationToken?>(), Arg.Any<DateTime?>());
				listener.Received().ReportStep(Step.ClosingLock);
				await locks.Received()[0].CloseAsync(); // Lock must be closed
				listener.Received().ReportStep(Step.WaitStopPollingQueryLocation);
				listener.Received().ReportStep(Step.QueryLocationTerminated);
				await connector.Command.UpdateLockingStateAsync(bike, Arg.Is<LocationDto>(x => x.Latitude == 47.99 && x.Longitude == 7.78));
			});
		}

		[Test]
		public async Task TestCloseGeolocationServiceGetAsyncFails()
		{
			var bike = Substitute.For<IBikeInfoMutable>();
			var connector = Substitute.For<IConnector>();
			var geolocation = Substitute.For<IGeolocationService>();
			var locks = Substitute.For<ILocksService>();
			var listener = Substitute.For<ICloseCommandListener>();
			var viewUpdateManager = Substitute.For<IPollingUpdateTaskManager>();

			var startOfTest = DateTime.Now;

			geolocation.GetAsync(Arg.Any<CancellationToken?>(), Arg.Any<DateTime?>()).Throws(new Exception("Ups no location..."));

			locks[0].CloseAsync()
				.Returns(Task.FromResult((LockitLockingState?)LockitLockingState.Closed)); // Return lock state indicating success

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

			await InvokeAsync<TestCloseCommand>(
				bike,
				geolocation,
				locks,
				() => true, // isConnectedDelegate
				(isConnected) => connector,
				listener, null);

			// Verify that location is kept because bike might be returned later.
			Assert.That(
				bike.LockInfo.Location,
				Is.Null);

			// Verify behavior
			Received.InOrder(async () =>
			{
				listener.Received().ReportStep(Step.StartingQueryingLocation);
				await geolocation.GetAsync(Arg.Any<CancellationToken?>(), Arg.Any<DateTime?>());
				await listener.Received().ReportStateAsync(State.StartGeolocationException, "Ups no location...");
				listener.Received().ReportStep(Step.ClosingLock);
				await locks.Received()[0].CloseAsync(); // Lock must be closed
				await connector.Command.UpdateLockingStateAsync(bike, Arg.Any<LocationDto>());
			});
		}

		[Test]
		public void TestCloseCloseFailsOutOfReachException()
		{
			var bike = Substitute.For<IBikeInfoMutable>();
			var connector = Substitute.For<IConnector>();
			var geolocation = Substitute.For<IGeolocationService>();
			var locks = Substitute.For<ILocksService>();
			var listener = Substitute.For<ICloseCommandListener>();
			var viewUpdateManager = Substitute.For<IPollingUpdateTaskManager>();

			geolocation.GetAsync(Arg.Any<CancellationToken?>(), Arg.Any<DateTime?>()).Returns(new Geolocation.Builder { Latitude = 47.99, Longitude = 7.78 }.Build());

			locks[0].CloseAsync()
				.Returns<Task<LockitLockingState?>>(x => throw new OutOfReachException());

			bike.State.Value.Returns(InUseStateEnum.Booked);
			bike.LockInfo.State.Returns(LockingState.Open);

			Assert.That(
				async () => await InvokeAsync<TestCloseCommand>(
					bike,
					geolocation,
					locks,
					() => true, // isConnectedDelegate
					(isConnected) => connector,
					listener, null),
				Throws.InstanceOf<OutOfReachException>());

			// Verify behavior
			Received.InOrder(async () =>
			{
				listener.Received().ReportStep(Step.StartingQueryingLocation);
				await geolocation.GetAsync(Arg.Any<CancellationToken?>(), Arg.Any<DateTime?>());
				listener.Received().ReportStep(Step.ClosingLock);
				await locks.Received()[0].CloseAsync(); // Lock must be closed
				await listener.Received().ReportStateAsync(State.OutOfReachError, "Exception of type 'ShareeBike.Services.BluetoothLock.Exception.OutOfReachException' was thrown.");
			});

			Assert.That(
				bike.LockInfo.State,
				Is.EqualTo(LockingState.UnknownDisconnected));
		}

		[Test]
		public void TestCloseCloseFailsCouldntCloseMovingException()
		{
			var bike = Substitute.For<IBikeInfoMutable>();
			var connector = Substitute.For<IConnector>();
			var geolocation = Substitute.For<IGeolocationService>();
			var locks = Substitute.For<ILocksService>();
			var listener = Substitute.For<ICloseCommandListener>();
			var viewUpdateManager = Substitute.For<IPollingUpdateTaskManager>();

			geolocation.GetAsync(Arg.Any<CancellationToken?>(), Arg.Any<DateTime?>()).Returns(new Geolocation.Builder { Latitude = 47.99, Longitude = 7.78 }.Build());

			locks[0].CloseAsync()
				.Returns<Task<LockitLockingState?>>(x => throw new CouldntCloseMovingException());

			bike.State.Value.Returns(InUseStateEnum.Booked);
			bike.LockInfo.State.Returns(LockingState.Open);

			Assert.That(
				async () => await InvokeAsync<TestCloseCommand>(
					bike, geolocation, locks, () => true, (isConnected) => connector, listener, null),
				Throws.InstanceOf<CouldntCloseMovingException>());

			// Verify behavior
			Received.InOrder(async () =>
			{
				listener.Received().ReportStep(Step.StartingQueryingLocation);
				await geolocation.GetAsync(Arg.Any<CancellationToken?>(), Arg.Any<DateTime?>());
				listener.Received().ReportStep(Step.ClosingLock);
				await locks.Received()[0].CloseAsync(); // Lock must be closed
				await listener.Received().ReportStateAsync(State.CouldntCloseMovingError, "The process is motion sensitive. Step close to the lock, do not move, and try again.");
				await connector.Command.UpdateLockingStateAsync(bike, Arg.Is<LocationDto>(x => x.Latitude == 47.99 && x.Longitude == 7.78));
			});

			Assert.That(
				bike.LockInfo.State,
				Is.EqualTo(LockingState.Open));
		}

		[Test]
		public void TestCloseCloseFailsCouldntCloseBoltBlockedException()
		{
			var bike = Substitute.For<IBikeInfoMutable>();
			var connector = Substitute.For<IConnector>();
			var geolocation = Substitute.For<IGeolocationService>();
			var locks = Substitute.For<ILocksService>();
			var listener = Substitute.For<ICloseCommandListener>();
			var viewUpdateManager = Substitute.For<IPollingUpdateTaskManager>();

			geolocation.GetAsync(Arg.Any<CancellationToken?>(), Arg.Any<DateTime?>()).Returns(new Geolocation.Builder { Latitude = 47.99, Longitude = 7.78 }.Build());

			locks[0].CloseAsync()
				.Returns<Task<LockitLockingState?>>(x => throw new CouldntCloseBoltBlockedException());

			bike.State.Value.Returns(InUseStateEnum.Booked);
			bike.LockInfo.State.Returns(LockingState.Open);

			Assert.That(
				async () => await InvokeAsync<TestCloseCommand>(bike, geolocation, locks, () => true, (isConnected) => connector, listener, null),
				Throws.InstanceOf<CouldntCloseBoltBlockedException>());

			// Verify behavior
			Received.InOrder(async () =>
			{
				listener.Received().ReportStep(Step.StartingQueryingLocation);
				await geolocation.GetAsync(Arg.Any<CancellationToken?>(), Arg.Any<DateTime?>());
				listener.Received().ReportStep(Step.ClosingLock);
				await locks.Received()[0].CloseAsync(); // Lock must be closed
				await listener.Received().ReportStateAsync(State.CouldntCloseBoltBlockedError, "Lock bolt is blocked. Make sure that no spoke or any other obstacle prevents the lock from closing and try again.");
				await connector.Command.UpdateLockingStateAsync(bike, Arg.Is<LocationDto>(x => x.Latitude == 47.99 && x.Longitude == 7.78));
			});

			Assert.That(
				bike.LockInfo.State,
				Is.EqualTo(LockingState.UnknownFromHardwareError));
		}

		[Test]
		public void TestCloseCloseFailsCouldntCloseBoltBlockedExceptionOpen()
		{
			var bike = Substitute.For<IBikeInfoMutable>();
			var connector = Substitute.For<IConnector>();
			var geolocation = Substitute.For<IGeolocationService>();
			var locks = Substitute.For<ILocksService>();
			var listener = Substitute.For<ICloseCommandListener>();
			var viewUpdateManager = Substitute.For<IPollingUpdateTaskManager>();

			geolocation.GetAsync(Arg.Any<CancellationToken?>(), Arg.Any<DateTime?>()).Returns(new Geolocation.Builder { Latitude = 47.99, Longitude = 7.78 }.Build());

			locks[0].CloseAsync()
				.Returns<Task<LockitLockingState?>>(x => throw new CouldntCloseBoltBlockedException(LockingState.Open));

			bike.State.Value.Returns(InUseStateEnum.Booked);
			bike.LockInfo.State.Returns(LockingState.Open);

			Assert.That(
				async () => await InvokeAsync<TestCloseCommand>(bike, geolocation, locks, () => true, (isConnected) => connector, listener, null),
				Throws.InstanceOf<CouldntCloseBoltBlockedException>());

			// Verify behavior
			Received.InOrder(async () =>
			{
				listener.Received().ReportStep(Step.StartingQueryingLocation);
				await geolocation.GetAsync(Arg.Any<CancellationToken?>(), Arg.Any<DateTime?>());
				listener.Received().ReportStep(Step.ClosingLock);
				await locks.Received()[0].CloseAsync(); // Lock must be closed
				await listener.Received().ReportStateAsync(State.CouldntCloseBoltBlockedError, "Lock bolt is blocked. Make sure that no spoke or any other obstacle prevents the lock from closing and try again.");
				await connector.Command.UpdateLockingStateAsync(bike, Arg.Is<LocationDto>(x => x.Latitude == 47.99 && x.Longitude == 7.78));
			});

			Assert.That(
				bike.LockInfo.State,
				Is.EqualTo(LockingState.Open));
		}

		[Test]
		public void TestCloseCloseFailsCouldntCloseInconsistentState()
		{
			var bike = Substitute.For<IBikeInfoMutable>();
			var connector = Substitute.For<IConnector>();
			var geolocation = Substitute.For<IGeolocationService>();
			var locks = Substitute.For<ILocksService>();
			var listener = Substitute.For<ICloseCommandListener>();
			var viewUpdateManager = Substitute.For<IPollingUpdateTaskManager>();

			geolocation.GetAsync(Arg.Any<CancellationToken?>(), Arg.Any<DateTime?>()).Returns(new Geolocation.Builder { Latitude = 47.99, Longitude = 7.78 }.Build());

			locks[0].CloseAsync()
				.Returns<Task<LockitLockingState?>>(x => throw new CouldntCloseInconsistentStateExecption(LockitLockingState.Unknown.GetLockingState()));

			bike.State.Value.Returns(InUseStateEnum.Booked);
			bike.LockInfo.State.Returns(LockingState.Open);

			Assert.That(
				async () => await InvokeAsync<TestCloseCommand>(bike, geolocation, locks, () => true, (isConnected) => connector, listener, null),
				Throws.InstanceOf<CouldntCloseInconsistentStateExecption>());

			// Verify behavior
			Received.InOrder(async () =>
			{
				listener.Received().ReportStep(Step.StartingQueryingLocation);
				await geolocation.GetAsync(Arg.Any<CancellationToken?>(), Arg.Any<DateTime?>());
				listener.Received().ReportStep(Step.ClosingLock);
				await locks.Received()[0].CloseAsync(); // Lock must be closed
				await listener.Received().ReportStateAsync(State.GeneralCloseError, "Lock reports unknown bold position. Lock could be closed or open. Please try again or contact customer support.");
				await connector.Command.UpdateLockingStateAsync(bike, Arg.Is<LocationDto>(x => x.Latitude == 47.99 && x.Longitude == 7.78));
			});

			Assert.That(
				bike.LockInfo.State,
				Is.EqualTo(LockingState.UnknownFromHardwareError));
		}

		[Test]
		public void TestCloseCloseFailsException()
		{
			var bike = Substitute.For<IBikeInfoMutable>();
			var connector = Substitute.For<IConnector>();
			var command = Substitute.For<ICommand>();
			var geolocation = Substitute.For<IGeolocationService>();
			var locks = Substitute.For<ILocksService>();
			var listener = Substitute.For<ICloseCommandListener>();
			var viewUpdateManager = Substitute.For<IPollingUpdateTaskManager>();

			geolocation.GetAsync(Arg.Any<CancellationToken?>(), Arg.Any<DateTime?>()).Returns(new Geolocation.Builder { Latitude = 47.99, Longitude = 7.78 }.Build());

			locks[0].CloseAsync()
				.Returns<Task<LockitLockingState?>>(x => throw new Exception("Exception message."));
			bike.State.Value.Returns(InUseStateEnum.Booked);


			Assert.That(
				async () => await InvokeAsync<TestCloseCommand>(bike, geolocation, locks, () => true, (isConnected) => connector, listener, null),
				Throws.InstanceOf<Exception>());

			// Verify behavior
			Received.InOrder(async () =>
			{
				listener.Received().ReportStep(Step.StartingQueryingLocation);
				await geolocation.GetAsync(Arg.Any<CancellationToken?>(), Arg.Any<DateTime?>());
				listener.Received().ReportStep(Step.ClosingLock);
				await locks.Received()[0].CloseAsync(); // Lock must be closed
				await listener.ReportStateAsync(State.GeneralCloseError, "Exception message.");
				await connector.Command.UpdateLockingStateAsync(bike, Arg.Is<LocationDto>(x => x.Latitude == 47.99 && x.Longitude == 7.78));
			});

			Assert.That(
				bike.LockInfo.State,
				Is.EqualTo(LockingState.UnknownDisconnected));
		}

		[Test]
		public async Task TestCloseWaitGeolocationServiceGetAsyncFails()
		{
			var bike = Substitute.For<IBikeInfoMutable>();
			var connector = Substitute.For<IConnector>();
			var command = Substitute.For<ICommand>();
			var geolocation = Substitute.For<IGeolocationService>();
			var locks = Substitute.For<ILocksService>();
			var listener = Substitute.For<ICloseCommandListener>();
			var viewUpdateManager = Substitute.For<IPollingUpdateTaskManager>();

			locks[0].CloseAsync()
				.Returns(LockitLockingState.Closed); // Return lock state indicating success

			geolocation.GetAsync(Arg.Any<CancellationToken?>(), Arg.Any<DateTime?>()).Returns(Task.FromException<IGeolocation>(new Exception("Ups, some error...")));

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

			await InvokeAsync<TestCloseCommand>(bike, geolocation, locks, () => true, (isConnected) => connector, listener, null);

			// Verify behavior
			Received.InOrder(async () =>
			{
				listener.Received().ReportStep(Step.StartingQueryingLocation);
				await geolocation.GetAsync(Arg.Any<CancellationToken?>(), Arg.Any<DateTime?>());
				listener.Received().ReportStep(Step.ClosingLock);
				await locks.Received()[0].CloseAsync(); // Lock must be closed
				listener.Received().ReportStep(Step.WaitStopPollingQueryLocation);
				await listener.Received().ReportStateAsync(State.WaitGeolocationException, "Ups, some error...");
				listener.Received().ReportStep(Step.QueryLocationTerminated);
				await connector.Command.UpdateLockingStateAsync(bike, Arg.Any<LocationDto>());
			});
		}


		[Test]
		public async Task TestCloseUpdateLockingStateFailsWebConnectFailureException()
		{
			var bike = Substitute.For<IBikeInfoMutable>();
			var connector = Substitute.For<IConnector>();
			var command = Substitute.For<ICommand>();
			var geolocation = Substitute.For<IGeolocationService>();
			var locks = Substitute.For<ILocksService>();
			var listener = Substitute.For<ICloseCommandListener>();
			var viewUpdateManager = Substitute.For<IPollingUpdateTaskManager>();

			locks[0].CloseAsync()
				.Returns(LockitLockingState.Closed); // Return lock state indicating success

			connector.Command.UpdateLockingStateAsync(bike, Arg.Any<LocationDto>()).Returns(x => throw new WebConnectFailureException("Context info.", new System.Exception("hoppla")));

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

			await InvokeAsync<TestCloseCommand>(bike, geolocation, locks, () => true, (isConnected) => connector, listener, null);

			// Verify behavior
			Received.InOrder(async () =>
			{
				listener.Received().ReportStep(Step.StartingQueryingLocation);
				await geolocation.GetAsync(Arg.Any<CancellationToken?>(), Arg.Any<DateTime?>());
				listener.Received().ReportStep(Step.ClosingLock);
				await locks.Received()[0].CloseAsync(); // Lock must be closed
				await connector.Command.UpdateLockingStateAsync(bike, Arg.Any<LocationDto>());
				await listener.ReportStateAsync(State.WebConnectFailed, "Context info.");
			});
		}

		[Test]
		public async Task TestCloseUpdateLockingStateFailsResponseException()
		{
			var bike = Substitute.For<IBikeInfoMutable>();
			var connector = Substitute.For<IConnector>();
			var command = Substitute.For<ICommand>();
			var geolocation = Substitute.For<IGeolocationService>();
			var locks = Substitute.For<ILocksService>();
			var listener = Substitute.For<ICloseCommandListener>();
			var viewUpdateManager = Substitute.For<IPollingUpdateTaskManager>();

			locks[0].CloseAsync()
				.Returns(LockitLockingState.Closed); // Return lock state indicating success

			connector.Command.UpdateLockingStateAsync(bike, Arg.Any<LocationDto>()).Returns(x =>
				throw new ReturnBikeException(JsonConvert.DeserializeObject<DoReturnResponse>(@"{ ""response_text"" : ""Some invalid data received!""}"), "Outer message."));

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

			await InvokeAsync<TestCloseCommand>(bike, geolocation, locks, () => true, (isConnected) => connector, listener, null);

			// Verify behavior
			Received.InOrder(async () =>
			{
				listener.Received().ReportStep(Step.StartingQueryingLocation);
				await geolocation.GetAsync(Arg.Any<CancellationToken?>(), Arg.Any<DateTime?>());
				listener.Received().ReportStep(Step.ClosingLock);
				await locks.Received()[0].CloseAsync(); // Lock must be closed
				await connector.Command.UpdateLockingStateAsync(bike, Arg.Any<LocationDto>());
				await listener.ReportStateAsync(State.ResponseIsInvalid, "Outer message.");
			});
		}


		[Test]
		public async Task TestCloseUpdateLockingStateFailsException()
		{
			var bike = Substitute.For<IBikeInfoMutable>();
			var connector = Substitute.For<IConnector>();
			var command = Substitute.For<ICommand>();
			var geolocation = Substitute.For<IGeolocationService>();
			var locks = Substitute.For<ILocksService>();
			var listener = Substitute.For<ICloseCommandListener>();
			var viewUpdateManager = Substitute.For<IPollingUpdateTaskManager>();

			locks[0].CloseAsync()
				.Returns(LockitLockingState.Closed); // Return lock state indicating success

			connector.Command.UpdateLockingStateAsync(bike, Arg.Any<LocationDto>()).Returns(x => throw new Exception("Exception message."));
			bike.State.Value.Returns(InUseStateEnum.Booked);

			await InvokeAsync<TestCloseCommand>(bike, geolocation, locks, () => true, (isConnected) => connector, listener, null);

			// Verify behavior
			Received.InOrder(async () =>
			{
				listener.Received().ReportStep(Step.StartingQueryingLocation);
				await geolocation.GetAsync(Arg.Any<CancellationToken?>(), Arg.Any<DateTime?>());
				listener.Received().ReportStep(Step.ClosingLock);
				await locks.Received()[0].CloseAsync(); // Lock must be closed
				await connector.Command.UpdateLockingStateAsync(bike, Arg.Any<LocationDto>());
				await listener.ReportStateAsync(State.BackendUpdateFailed, "Exception message.");
			});
		}
	}
}