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

/// <summary>
/// 
/// </summary>
public class MySortToggle : MonoBehaviour
{
    /// <summary>
    /// 
    /// </summary>
    public CustomizeSortRule curRule = CustomizeSortRule.none;

    /// <summary>
    /// 
    /// </summary>
    private GameObject mAsc;

    /// <summary>
    /// 
    /// </summary>
    private GameObject mDesc;

    /// <summary>
    /// 按钮的选中发生状态对外提供的处理回调
    /// </summary>
    private Action<int> OnSortRuleChangedCallBack;

    // Use this for initialization
    public void Init(Action<int> _valueChangedCallBack)
    {
        OnSortRuleChangedCallBack = _valueChangedCallBack;

        mAsc = this.transform.Find("asc").gameObject;
        mDesc = this.transform.Find("desc").gameObject;

        mAsc.SetActive(false);
        mDesc.SetActive(false);

        EventTriggerListenerDialog.Get(gameObject).onClick = ((_btn) =>
        {
            OnClicked();
        });
    }

    /// <summary>
    /// 
    /// </summary>
    /// <param name="go"></param>
    private void OnClicked()
    {
        if (curRule == CustomizeSortRule.none)
        {
            curRule = CustomizeSortRule.升序排序;
        }
        else if (curRule == CustomizeSortRule.升序排序)
        {
            curRule = CustomizeSortRule.降序排序;
        }
        else if (curRule == CustomizeSortRule.降序排序)
        {
            curRule = CustomizeSortRule.升序排序;
        }
        RefreshToggleState();
        if (OnSortRuleChangedCallBack != null)
        {
            OnSortRuleChangedCallBack((int)curRule);
        }
    }

    /// <summary>
    /// 
    /// </summary>
    void OnDestory()
    {
        curRule = CustomizeSortRule.none;
        RefreshToggleState();
        OnSortRuleChangedCallBack = null;
    }

    /// <summary>
    /// 
    /// </summary>
    void RefreshToggleState()
    {
        switch (curRule)
        {
            case CustomizeSortRule.none:
                mAsc.SetActive(false);
                mDesc.SetActive(false);
                break;
            case CustomizeSortRule.升序排序:
                mAsc.SetActive(true);
                mDesc.SetActive(false);
                break;

            case CustomizeSortRule.降序排序:
                mAsc.SetActive(false);
                mDesc.SetActive(true);
                break;
        }
    }
}

public enum CustomizeSortRule
{
    none = 0,
    升序排序 = 1,
    降序排序 = 2,
}