using UnityEngine;
using UnityEngine.UI;
using System.Collections;

public class MeterObject : MonoBehaviour {

	public static MeterObject Instance;

	const int MAX = 1;

	[SerializeField] Animator anim = null;
	[SerializeField] RectTransform rangeTransform = null;
    [SerializeField] RectTransform rangeTransform2 = null;
	[SerializeField] RectTransform slider = null;
	[SerializeField] RectTransform meterObject;

	float range;
    float range2;
	float curSlider;
	float meterWidth;
    float tempSlider;
	Vector2 rangeData;
    Vector2 rangeData2;
	Vector2 targetData;
    Vector2 targetData2;
	bool isCatching;
    bool inverse;

	void Awake() {
		Instance = this;

        //red
		range = DifficultyMeter.Instance.GetData().GetRange();
		rangeData.x = 0 + (range * 0.5f);
		rangeData.y = MAX - (range * 0.5f);
		meterWidth = meterObject.sizeDelta.x;
		rangeTransform.sizeDelta = new Vector2(meterWidth * range, rangeTransform.sizeDelta.y);

        //green
        range2 = DifficultyMeter.Instance.GetData().GetRange2();
        rangeData2.x = 0 + (range2 * 0.5f);
        rangeData2.y = MAX - (range2 * 0.5f);
        rangeTransform2.sizeDelta = new Vector2(meterWidth * range2, rangeTransform2.sizeDelta.y);

	}

	void Update() {
		if (isCatching || !GameManager.Instance.IsPlaying())
			return;

		curSlider += (inverse ? Time.deltaTime : -Time.deltaTime) * DifficultyMeter.Instance.GetData().GetSliderSpeed();

		if(curSlider < 0)
			curSlider = 0;

		if (curSlider > 1)
			curSlider = 1;

		if (curSlider == 0 || curSlider == 1)
			inverse = !inverse;

		slider.localPosition = new Vector3((curSlider - 0.5f) * meterWidth, 0);

	}

	public void ShowRange() {
        //red
		float target = Random.Range(rangeData.x, rangeData.y);
		targetData.x = target - (range / 2);
		targetData.y = target + (range / 2);
        rangeTransform.localPosition = new Vector3((target - 0.5f) * meterWidth, 0, 0);

        //green
        float target2 =
        targetData2.x = target2 - (range2 / 2);
        targetData2.y = target2 + (range2 / 2);
        rangeTransform2.localPosition = new Vector3((target2 - 0.5f) * meterWidth, 0, 0);

	}

	public void CheckRange() {
		if (isCatching || !GameManager.Instance.IsPlaying())
			return;

		tempSlider = curSlider;
		StartCoroutine(StartCatching());
	}

	IEnumerator StartCatching() {
		anim.Play("Pull");
		isCatching = true;
		yield return new WaitForSeconds(1);
        isCatching = false;
        if (tempSlider > targetData.x && tempSlider < targetData.y)
        {
            GameManager.Instance.Correct();
        }
        else if (tempSlider > targetData2.x && tempSlider < targetData2.y)
        {
            GameManager.Instance.Correct2();
        }
        else
            ScoreManager.Instance.LossHealth();
	}
}