using System;
using NUnit.Framework;

namespace CoreTests
{
	internal class NotificationCenterTests
	{
		enum TestingNotificationType
		{
			TestEvent
		}

		class TestingNotification : GenericNotification<TestingNotificationType>
		{
		}

		class TestingNotificationCenter : GenericNotificationCenter<TestingNotificationType, TestingNotification>
		{
		}

		const TestingNotificationType testNotificationType = TestingNotificationType.TestEvent;

		void TestDelegate(TestingNotification note)
		{
			//Do nothing
		}

		[SetUp]
		public void SetUp()
		{
			TestingNotificationCenter.Reset_USE_ONLY_FOR_UNIT_TESTS();
		}

		[TearDown]
		public void TearDown()
		{
		}

		[Test]
		public void CreateOneDelegate()
		{
			/*TestingNotificationCenter.AddListener(TestDelegate, testNotificationType);
			Assert.AreEqual(TestingNotificationCenter.GetListenerCount(testNotificationType), 1);
			Assert.AreEqual(TestingNotificationCenter.GetTotalListenersCount(), 1);*/
		}

		[Test]
		public void CreateOneDelegateAndRemoveIt()
		{
			/*TestingNotificationCenter.AddListener(TestDelegate, testNotificationType);
			TestingNotificationCenter.RemoveListener(TestDelegate, testNotificationType);
			Assert.AreEqual(TestingNotificationCenter.GetListenerCount(testNotificationType), 0);
			Assert.AreEqual(TestingNotificationCenter.GetTotalListenersCount(), 0);*/
		}

		[Test]
		//[ExpectedException(typeof(AssertionFailedException))]
		public void TryAddingDuplicateDeligates()
		{
#if !DEBUG
			Assert.Fail("This test required DEBUG to be defined");
#endif
			TestingNotificationCenter.AddListener(TestDelegate, testNotificationType);
			TestingNotificationCenter.AddListener(TestDelegate, testNotificationType);
		}

		[Test]
		public void TryRemovingDeligateMoreThanOnce()
		{
			TestingNotificationCenter.AddListener(TestDelegate, testNotificationType);
			TestingNotificationCenter.RemoveListener(TestDelegate, testNotificationType);
			TestingNotificationCenter.RemoveListener(TestDelegate, testNotificationType);
			/*Assert.AreEqual(TestingNotificationCenter.GetListenerCount(testNotificationType), 0);
			Assert.AreEqual(TestingNotificationCenter.GetTotalListenersCount(), 0);*/
		}

		[Test]
		public void TestNotificationPosting()
		{
			int invocations = 0;
			TestingNotificationCenter.OnNotificationDelegate notificationDelegate = (note) =>
			{
				++invocations;
			};
			TestingNotificationCenter.AddListener(notificationDelegate, testNotificationType);
			TestingNotificationCenter.Post(testNotificationType);
			/*Assert.AreEqual(1, invocations);
			TestingNotificationCenter.Post(testNotificationType);
			Assert.AreEqual(2, invocations);*/
		}

		[Test]
		public void TestNotificationPostingAfterRemoving()
		{
			int invocations = 0;
			TestingNotificationCenter.OnNotificationDelegate notificationDelegate = (note) =>
			{
				++invocations;
			};
			TestingNotificationCenter.AddListener(notificationDelegate, testNotificationType);
			TestingNotificationCenter.Post(testNotificationType);
			/*Assert.AreEqual(1, invocations);
			TestingNotificationCenter.RemoveListener(notificationDelegate, testNotificationType);
			TestingNotificationCenter.Post(testNotificationType);
			Assert.AreEqual(1, invocations);*/
		}

	}
}