using System;
using System.Collections;
using NUnit.Framework;
using UnityEngine;
using UnityEngine.TestTools;
using UnityEngine.TestTools.Utils;

namespace LitMotion.Tests.Runtime
{
    public class PlaybackSpeedTest
    {
        [UnityTest]
        public IEnumerator Test_PlaybackSpeed()
        {
            var endValue = 10f;
            var handle = LMotion.Create(0f, endValue, 1f)
                .BindToUnityLogger();
            handle.PlaybackSpeed = 0.5f;

            var time = Time.timeAsDouble;
            yield return handle.ToYieldInteraction();
            Assert.That(Time.timeAsDouble - time, Is.GreaterThan(2.0));
        }

        [UnityTest]
        public IEnumerator Test_PlaybackSpeed_Pause()
        {
            var endValue = 10f;
            var value = 0f;
            var handle = LMotion.Create(0f, endValue, 1f)
                .Bind(x => value = x);

            handle.PlaybackSpeed = 0f;
            yield return new WaitForSeconds(0.5f);
            Assert.That(value, Is.EqualTo(0f));

            handle.Cancel();
        }

        [UnityTest]
        public IEnumerator Test_PlaybackSpeed_2x_Speed()
        {
            var endValue = 10f;
            var value = 0f;
            var handle = LMotion.Create(0f, endValue, 1f)
                .Bind(x => value = x);
            
            handle.PlaybackSpeed = 2f;
            var time = Time.time;
            yield return handle.ToYieldInteraction();
            Assert.That(Time.time - time, Is.EqualTo(0.5f).Using(new FloatEqualityComparer(0.05f)));
        }

        [Test]
        public void Test_PlaybackSpeed_Minus()
        {
            var handle = LMotion.Create(0f, 10f, 1f).RunWithoutBinding();
            Assert.Throws<ArgumentOutOfRangeException>(() =>
            {
                handle.PlaybackSpeed = -1f;
            });
        }

    }
}