using System.Collections;
using System.Collections.Generic;
using NUnit.Framework;
using UnityEngine;
using UnityEngine.TestTools;
using KairoEngine.Core;
using KairoEngine.CharacterSystem;

namespace KairoEngine.CharacterSystem.EditorTests
{
    public class GenericEventsCharacterExtensionsTests
    {
        private CharacterController CreateTestCharacter()
        {
            GameObject obj = new GameObject();
            obj.AddComponent<CharacterController>();
            CharacterController character = obj.GetComponent<CharacterController>();
            return character;
        }

        private CharacterController CreateEmptyTestCharacter() => null;

        private void TestCharacterEvent(CharacterController character)
        {
            Assert.AreEqual(tempCharacter, character);
        }
        
        private CharacterController tempCharacter;

        [Test]
        public void GenericEvents_StartListening_CharacterController()
        {
            EventManager.broadcast.StartListening("TestCharacter", TestCharacterEvent);
            System.Action<CharacterController> action = null;
            bool value = GenericEventsCharacterExtensions.list.TryGetValue("TestCharacter", out action);
            Assert.AreEqual(true, value);
        }

        [Test]
        public void GenericEvents_StopListening_CharacterController()
        {
            EventManager.broadcast.StartListening("TestCharacter", TestCharacterEvent);
            System.Action<CharacterController> action1 = null;
            GenericEventsCharacterExtensions.list.TryGetValue("TestCharacter", out action1);
            Assert.IsNotNull(action1);
            EventManager.broadcast.StopListening("TestCharacter", TestCharacterEvent);
            System.Action<CharacterController> action2 = null;
            GenericEventsCharacterExtensions.list.TryGetValue("TestCharacter", out action2);
            Assert.IsNull(action2);
        }

        [Test]
        public void GenericEvents_Trigger_CharacterController()
        {
            tempCharacter = CreateTestCharacter();
            EventManager.broadcast.StartListening("TestCharacter", TestCharacterEvent);
            EventManager.broadcast.Trigger("TestCharacter", tempCharacter);
        }

        [TearDown]
        public void TearDown()
        {
            EventManager.broadcast.StopListening("TestCharacter", TestCharacterEvent);
            tempCharacter = null;
        }
    }
}