using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityStandardAssets.CinematicEffects;

public class ScreenEffects : MonoBehaviour
{
	public DepthOfField depthOfField;
	public float strength = 0f;

	private float originalNearRadius;
	private float originalFarRadius;

	void Start ()
	{
		depthOfField = GetComponent<DepthOfField>();
		if (depthOfField == null)
			depthOfField = gameObject.AddComponent<DepthOfField>();
		originalNearRadius = depthOfField.focus.nearBlurRadius;
		originalFarRadius = depthOfField.focus.farBlurRadius;

		NotificationServer.register("show GameUI", showGame);
		NotificationServer.register("hide GameUI", hideGame);
	}

	public void showGame()
	{
		LeanTween.cancel(gameObject, false);
		float startNear = depthOfField.focus.nearBlurRadius;
		float startFar = depthOfField.focus.farBlurRadius;
		DepthOfField.FocusSettings focus = depthOfField.focus;
		LeanTween.value(gameObject, 1f, 1f*strength, 0.5f).setEaseInOutQuad().setOnUpdate((float val)=>{
			focus.nearBlurRadius = startNear * val;
			focus.farBlurRadius = startFar * val;
		}).setOnComplete(()=>{
			if (strength == 0f)
				depthOfField.enabled = false;
		}).setIgnoreTimeScale(true);
	}

	public void hideGame()
	{
		LeanTween.cancel(gameObject, false);
		depthOfField.enabled = true;
		float startNear = depthOfField.focus.nearBlurRadius;
		float startFar = depthOfField.focus.farBlurRadius;
		DepthOfField.FocusSettings focus = depthOfField.focus;
		LeanTween.value(gameObject, 1f*strength, 1f, 0.5f).setEaseInOutQuad().setOnUpdate((float val)=>{
			focus.nearBlurRadius = startNear + (originalNearRadius-startNear) * val;
			focus.farBlurRadius = startFar + (originalFarRadius-startFar) * val;
		}).setIgnoreTimeScale(true);
	}

}