using System;
using System.Threading.Tasks;
using Newtonsoft.Json;
using NSubstitute;
using NSubstitute.ReceivedExtensions;
using NUnit.Framework;
using ShareeBike.Model.Connector;
using ShareeBike.Repository;
using ShareeBike.Repository.Exception;
using ShareeBike.Repository.Response;

namespace SharedBusinessLogic.Tests.Fixtures.ObjectTests.Connector
{
	[TestFixture]
	public class TestCommandLoggedIn
	{
		/// <summary> Verifies, that logout leads to expected call on copri server. </summary>
		[Test]
		public void TestDoLogout()
		{
			var l_oServer = Substitute.For<ICopriServer>();

			l_oServer.DoAuthoutAsync().Returns(Task.Run(() => JsonConvert.DeserializeObject<AuthorizationoutResponse>("{ \"response_state\" : \"OK\", \"authcookie\" : \"1\"}")));

			var l_oCmd = new CommandLoggedIn(l_oServer, "MeinKeks", "EMehl", () => DateTime.Now);

			LoginStateChangedEventArgs l_oEventArgs = null;
			l_oCmd.LoginStateChanged += (sender, eventargs) => l_oEventArgs = eventargs;

			l_oCmd.DoLogout().Wait();


			l_oServer.Received().DoAuthoutAsync();
			Assert.That(l_oEventArgs, Is.Not.Null);
		}

		/// <summary> Verifies, that logout leads to expected call on copri server. </summary>
		[Test]
		public void TestDoLogout_AuthcookieNotDefined()
		{
			var l_oServer = Substitute.For<ICopriServer>();

			l_oServer.When(x => x.DoAuthoutAsync()).Throw(new AuthcookieNotDefinedException("Testing action", JsonConvert.DeserializeObject<ResponseBase>(@"{ ""response_state"" : ""Some inner error description""}")));

			var l_oCmd = new CommandLoggedIn(l_oServer, "MeinKeks", "EMehl", () => DateTime.Now);

			LoginStateChangedEventArgs l_oEventArgs = null;
			l_oCmd.LoginStateChanged += (sender, eventargs) => l_oEventArgs = eventargs;

			l_oCmd.DoLogout().Wait();

			l_oServer.Received().DoAuthoutAsync();
			Assert.That(l_oEventArgs, Is.Not.Null);
		}

		/// <summary> Verifies, that logout leads to expected call on copri server. </summary>
		[Test]
		public void TestDoLogout_Exception()
		{
			var l_oServer = Substitute.For<ICopriServer>();

			l_oServer.When(x => x.DoAuthoutAsync()).Throw(new System.Exception("Sometheing went wrong."));

			var l_oCmd = new CommandLoggedIn(l_oServer, "MeinKeks", "EMehl", () => DateTime.Now);

			LoginStateChangedEventArgs l_oEventArgs = null;
			l_oCmd.LoginStateChanged += (sender, eventargs) => l_oEventArgs = eventargs;

			Assert.Throws<AggregateException>(() => l_oCmd.DoLogout().Wait());

			l_oServer.Received().DoAuthoutAsync();
			Assert.That(l_oEventArgs, Is.Null);
		}
	}
}