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

public struct PropWidgetParam
{
	// Ö÷¶¯µã»÷
	public System.Action<PropWidget> onSelected;
	public PropBase prop;
}

public class PropWidget : UIGridPropBase
{
	public Image Image_Icon;
	public Image Image_SelectBg;

	public Image Image_Use;

	private System.Action<PropWidget> onSelected;

	public PropBase prop { get { return m_Prop; } }
	private PropBase m_Prop;

	private Coroutine m_CoUse;

	private int m_PendingUse = 0;

	public void SetSelectBg(bool selected)
	{
		Image_SelectBg.gameObject.SetActive(selected);
	}

	public override void Set(object param)
	{
		PropWidgetParam info = (PropWidgetParam)param;
		onSelected = info.onSelected;
		m_Prop = info.prop;

		Image_Icon.sprite = ResourceManager.Instance.Load<Sprite>(info.prop.iconPath);

		SetSelectBg(false);

		Image_Use.gameObject.SetActive(false);
	}

	public void OnSelectCallback()
	{
		SetSelectBg(true);
	}

	public void OnDeselectCallback()
	{
		SetSelectBg(false);
	}

	public void OnUseCallback()
	{
		m_PendingUse++;
		PlayUseAnimation();
	}

	private void PlayUseAnimation()
	{
		if (m_CoUse != null)
			return;
		Image_Use.gameObject.SetActive(true);
		m_CoUse = StartCoroutine(CoUseAnimation());
	}

	IEnumerator CoUseAnimation()
	{
		float speed = 7f;

		while(m_PendingUse > 0)
		{
			Image_Use.fillOrigin = (int)Image.OriginVertical.Bottom;
			float t = 0;
			while (true)
			{
				t += speed * Time.deltaTime;

				if (t > 1)
					break;

				Image_Use.fillAmount = Mathf.Lerp(0, 1, t);

				yield return null;
			}

			Image_Use.fillOrigin = (int)Image.OriginVertical.Top;
			t = 0;
			while (true)
			{
				t += speed * Time.deltaTime;

				if (t > 1)
					break;

				Image_Use.fillAmount = Mathf.Lerp(1, 0, t);

				yield return null;
			}
			m_PendingUse--;
		}

		Image_Use.gameObject.SetActive(false);

		m_CoUse = null;

		yield break;
	}

	private void StopUseAnimation()
	{
		if (m_CoUse != null)
		{
			StopCoroutine(m_CoUse);
		}
		Image_Use.gameObject.SetActive(false);
	}

}