using Zinnia.Action;

namespace Test.Zinnia.Action
{
    using NUnit.Framework;
    using Test.Zinnia.Utility.Mock;
    using UnityEngine;

    public class Vector3ActionTest
    {
        private GameObject containingObject;
        private Vector3ActionMock subject;

        [SetUp]
        public void SetUp()
        {
            containingObject = new GameObject("Vector3ActionTest");
            subject = containingObject.AddComponent<Vector3ActionMock>();
        }

        [TearDown]
        public void TearDown()
        {
            Object.DestroyImmediate(containingObject);
        }

        [Test]
        public void ActivatedEmitted()
        {
            UnityEventListenerMock activatedListenerMock = new UnityEventListenerMock();
            UnityEventListenerMock deactivatedListenerMock = new UnityEventListenerMock();
            UnityEventListenerMock changedListenerMock = new UnityEventListenerMock();

            subject.Activated.AddListener(activatedListenerMock.Listen);
            subject.Deactivated.AddListener(deactivatedListenerMock.Listen);
            subject.ValueChanged.AddListener(changedListenerMock.Listen);

            Assert.IsFalse(activatedListenerMock.Received);
            Assert.IsFalse(deactivatedListenerMock.Received);
            Assert.IsFalse(changedListenerMock.Received);

            subject.Receive(Vector3.one);

            Assert.IsTrue(activatedListenerMock.Received);
            Assert.IsFalse(deactivatedListenerMock.Received);
            Assert.IsTrue(changedListenerMock.Received);
        }

        [Test]
        public void DeactivatedEmitted()
        {
            subject.SetIsActivated(true);
            subject.SetValue(Vector3.one);

            UnityEventListenerMock activatedListenerMock = new UnityEventListenerMock();
            UnityEventListenerMock deactivatedListenerMock = new UnityEventListenerMock();
            UnityEventListenerMock changedListenerMock = new UnityEventListenerMock();

            subject.Activated.AddListener(activatedListenerMock.Listen);
            subject.Deactivated.AddListener(deactivatedListenerMock.Listen);
            subject.ValueChanged.AddListener(changedListenerMock.Listen);

            Assert.IsFalse(activatedListenerMock.Received);
            Assert.IsFalse(deactivatedListenerMock.Received);
            Assert.IsFalse(changedListenerMock.Received);

            subject.Receive(Vector3.zero);

            Assert.IsFalse(activatedListenerMock.Received);
            Assert.IsTrue(deactivatedListenerMock.Received);
            Assert.IsTrue(changedListenerMock.Received);
        }

        [Test]
        public void ChangedEmitted()
        {
            UnityEventListenerMock changedListenerMock = new UnityEventListenerMock();

            subject.ValueChanged.AddListener(changedListenerMock.Listen);

            Assert.IsFalse(changedListenerMock.Received);

            subject.Receive(new Vector3(0.1f, 0.1f, 0.1f));
            Assert.IsTrue(changedListenerMock.Received);

            changedListenerMock.Reset();
            Assert.IsFalse(changedListenerMock.Received);

            subject.Receive(new Vector3(0.1f, 0.1f, 0.1f));
            Assert.IsFalse(changedListenerMock.Received);

            changedListenerMock.Reset();
            Assert.IsFalse(changedListenerMock.Received);

            subject.Receive(new Vector3(0.2f, 0.2f, 0.2f));
            Assert.IsTrue(changedListenerMock.Received);
        }

        [Test]
        public void EventsNotEmittedOnInactiveGameObject()
        {
            UnityEventListenerMock activatedListenerMock = new UnityEventListenerMock();
            UnityEventListenerMock deactivatedListenerMock = new UnityEventListenerMock();
            UnityEventListenerMock changedListenerMock = new UnityEventListenerMock();

            subject.gameObject.SetActive(false);
            subject.Activated.AddListener(activatedListenerMock.Listen);
            subject.Deactivated.AddListener(deactivatedListenerMock.Listen);
            subject.ValueChanged.AddListener(changedListenerMock.Listen);

            Assert.IsFalse(activatedListenerMock.Received);
            Assert.IsFalse(deactivatedListenerMock.Received);
            Assert.IsFalse(changedListenerMock.Received);

            subject.Receive(Vector3.one);

            Assert.IsFalse(activatedListenerMock.Received);
            Assert.IsFalse(deactivatedListenerMock.Received);
            Assert.IsFalse(changedListenerMock.Received);
        }

        [Test]
        public void EventsNotEmittedOnDisabledComponent()
        {
            UnityEventListenerMock activatedListenerMock = new UnityEventListenerMock();
            UnityEventListenerMock deactivatedListenerMock = new UnityEventListenerMock();
            UnityEventListenerMock changedListenerMock = new UnityEventListenerMock();

            subject.enabled = false;
            subject.Activated.AddListener(activatedListenerMock.Listen);
            subject.Deactivated.AddListener(deactivatedListenerMock.Listen);
            subject.ValueChanged.AddListener(changedListenerMock.Listen);

            Assert.IsFalse(activatedListenerMock.Received);
            Assert.IsFalse(deactivatedListenerMock.Received);
            Assert.IsFalse(changedListenerMock.Received);

            subject.Receive(Vector3.one);

            Assert.IsFalse(activatedListenerMock.Received);
            Assert.IsFalse(deactivatedListenerMock.Received);
            Assert.IsFalse(changedListenerMock.Received);
        }
    }

    public class Vector3ActionMock : Vector3Action
    {
        public virtual void SetIsActivated(bool value)
        {
            IsActivated = value;
        }

        public virtual void SetValue(Vector3 value)
        {
            Value = value;
        }
    }
}