using UnityEngine;
using System.Collections;

namespace SpartanFist
{
	public class TwiddlerTimedReset : Twiddler
	{
		[Tooltip("The length of time before the twiddler will set the switch back to its original value")]
		public float resetTime = 0.0f;

		[Header("References"), Tooltip("(optional) the sound source for the looping tick-tock sounds")]
		public AudioSource tickTockAudioSource;

		[Header("Sounds")]
		public AudioClip tickTockSound;
		public AudioClip fastTickTockSound;

		protected bool lastSwitchState = false;
		protected bool hasLastState = false;

		protected float timeUntilReset = 0.0f;

		protected const float FastTickTockPercentRemaining = 0.25f;

		#region Standard Functions
		protected void Update()
		{
			if (toTwiddle == null) { return; }

			// Every time the switch changes state, we stop whatever we're doing, and see if we need to start a reset countdown
			if (hasLastState && (lastSwitchState != toTwiddle.SwitchState))
			{
				ResetTickTock();

				if (toTwiddle.SwitchState && onToOff) { timeUntilReset = resetTime; }
				if (!toTwiddle.SwitchState && offToOn) { timeUntilReset = resetTime; }
			}
			lastSwitchState = toTwiddle.SwitchState; hasLastState = true;

			// Now, we just count down to a reset (since apparently we're allowed to, if we got this far)
			if (timeUntilReset > 0.0f)
			{
				float deltaTime = PhysicsManager.GetDeltaTimeFor(gameObject);
				timeUntilReset -= deltaTime;

				// If we've finished counting down, reset!
				if (timeUntilReset <= 0.0f)
				{
					ResetTickTock();

					Twiddle(!toTwiddle.SwitchState);
				}
				// If we're not resetting this frame, then make sure we're playing the right audio
				else if (tickTockAudioSource != null)
				{
					float percentRemaining = timeUntilReset / resetTime;

					AudioClip desiredAudio = tickTockSound;
					if (percentRemaining <= FastTickTockPercentRemaining) { desiredAudio = fastTickTockSound; }

					if (!tickTockAudioSource.isPlaying || (tickTockAudioSource.clip != desiredAudio))
					{
						tickTockAudioSource.Stop();
						tickTockAudioSource.clip = desiredAudio;
						tickTockAudioSource.Play();
					}
				}
			}
		}
		#endregion

		protected void ResetTickTock()
		{
			timeUntilReset = 0.0f;
			if (tickTockAudioSource.isPlaying) { tickTockAudioSource.Stop(); }
		}
	}
}