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

/// <summary>
/// 新手引导UI脚本
/// </summary>
public class GuidePanel : MonoBehaviour
{
    GameObject tipsUI;//显示文字的UI
    CharForeach charForeach;//动态显示文字

    GuideCtrl m_Ctrl;//控制类

    /// <summary>
    /// 遮罩对象
    /// </summary>
    private RectGuidance maskObj;

    private RectTransform image_Rim_Rect;//边框
    private RectTransform image_Tip_Rect;//可以移动的提示框
    private Text text_Tip;//可以移动的提示框文字

    private Image image_SkillRim;//技能释放区域
    Vector2 rimOffset = new Vector2(30, 30);//边框要比按钮大一些


    // Start is called before the first frame update
    void Awake()
    {
        tipsUI = transform.Find("Tips").gameObject;
        charForeach = tipsUI.GetComponent<CharForeach>();
        m_Ctrl = transform.GetComponent<GuideCtrl>();
        transform.Find("Button").GetComponent<Button>().onClick.AddListener(m_Ctrl.OnFinishOneStep);
        GameObject go = Instantiate(Resources.Load<GameObject>("GuideFile/RectGuidance_Panel"), this.transform);
        if (go != null)
        {
            go.transform.SetSiblingIndex(1);
            maskObj = go.GetComponent<RectGuidance>();
            maskObj.gameObject.SetActive(false);
        }
        else
        {
            Debug.LogError("遮罩生成失败了");
        }

        image_Rim_Rect = transform.Find("Image_Rim").GetComponent<RectTransform>();
        image_Tip_Rect = transform.Find("Image_Tip").GetComponent<RectTransform>();
        text_Tip = image_Tip_Rect.transform.Find("Text").GetComponent<Text>();
        image_SkillRim = transform.Find("Image_SkillRim").GetComponent<Image>();

        image_Rim_Rect.gameObject.SetActive(false);
        image_Tip_Rect.gameObject.SetActive(false);
        image_SkillRim.gameObject.SetActive(false);

    }

    /// <summary>
    /// 设置引导框
    /// </summary>
    /// <param name="active"></param>
    public void SetGuideUI(bool active)
    {
        tipsUI.SetActive(active);
    }

    //开始打印文字
    public void StartShowWord(string str, Action cb)
    {
        charForeach.StartShowWord(str, cb);
    }

    /// <summary>
    /// 立刻完成打印
    /// </summary>
    public void ShowWordImmediately()
    {
        charForeach.ShowWordImmediately();
    }

    /// <summary>
    /// 第二步，购买宝石
    /// </summary>
    /// <param name="str"></param>
    /// <param name="currentIndex">当前第几步</param>
    public void Step1(string str, int currentIndex, Action ac)
    {
        if (currentIndex == 0)
        {
            image_Rim_Rect.gameObject.SetActive(true);
            image_Tip_Rect.gameObject.SetActive(true);
            //设置位置
            GameObject go = GameObject.Find("MainUI/TowerBuyBtn");
            AddButtonListener(go, ac);

            Image btnImg = go.GetComponent<Image>();
            InitRectGuidance(btnImg);
            SetRimPos(btnImg);
            maskObj.ShowImmediately();

        }
        else if (currentIndex == 1)
        {

        }
        text_Tip.text = str;//动态改变长度
        StartCoroutine(ShowRimTip(str));

    }


    public void Step2(int currentIndex)
    {
        image_Rim_Rect.gameObject.SetActive(false);
        image_Tip_Rect.gameObject.SetActive(false);

        CloseMask();
    }

    #region 按钮以及提示

    /// <summary>
    /// 设置边框的大小和位置
    /// </summary>
    /// <param name="target"></param>
    private void SetRimPos(Image target)
    {
        RectTransform rt = target.GetComponent<RectTransform>();
        image_Rim_Rect.anchoredPosition = rt.anchoredPosition;
        image_Rim_Rect.sizeDelta = (rt.sizeDelta * rt.localScale) + rimOffset;
        image_Tip_Rect.anchoredPosition = new Vector2(image_Rim_Rect.anchoredPosition.x, image_Rim_Rect.anchoredPosition.y + 74 / 2 + image_Rim_Rect.sizeDelta.y / 2);

    }

    IEnumerator ShowRimTip(string str)
    {
        yield return 10;
        SetTipRect(str);//动态修改text长度需要等待计算完成
    }
    /// <summary>
    /// 设置显示文字的长度
    /// </summary>
    /// <param name="str"></param>
    private void SetTipRect(string str)
    {
        RectTransform textRect = text_Tip.GetComponent<RectTransform>();
        image_Tip_Rect.sizeDelta = new Vector2(textRect.sizeDelta.x + 64, image_Tip_Rect.sizeDelta.y);
    }

    #endregion

    #region 遮罩，以及按钮添加删除事件

    /// <summary>
    /// 抠出来一个区域
    /// </summary>
    /// <param name="target"></param>
    void InitRectGuidance(Image target)
    {
        if (!maskObj.gameObject.activeSelf)
        {
            maskObj.gameObject.SetActive(true);
        }
        maskObj.Init(target);
    }

    /// <summary>
    /// 关闭遮罩
    /// </summary>
    public void CloseMask()
    {
        maskObj.gameObject.SetActive(false);
    }

    /// <summary>
    /// 给按钮添加事件
    /// </summary>
    private void AddButtonListener(GameObject go, Action ac)
    {
        EventTriggerListener.GetListener(go).onClick += (go1) =>
    {
        ac();
    };
    }

    /// <summary>
    /// 移除事件
    /// </summary>
    /// <param name="go"></param>
    private void RemoveButtonListener(GameObject go)
    {
        EventTriggerListener.GetListener(go).onClick -= null;

    }

    #endregion

    #region 

    #endregion

    #region 

    #endregion

    #region 

    #endregion


}