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

public class PageCutButtonController : Singleton<PageCutButtonController>
{
    [Header("页面切换按钮名称标识")]
    public string CutTag;
    private Dictionary<string, Button> CutS = new Dictionary<string, Button>(); // 页面切换按钮集合
    private Button TempCut; // 当前页面按钮

    private void Start()
    {
        Init();
    }

    /// <summary>
    /// 初始化，获取所有页面切换按钮
    /// </summary>
    void Init()
    {
        foreach (Transform obj in transform.GetComponentsInChildren<Transform>())
        {
            if (obj.name.Contains(CutTag))
            {
                CutS.Add(obj.name, obj.GetComponent<Button>());
                obj.GetComponent<Button>().onClick.AddListener(() =>
                {
                    PageController.Inst.PageCut(obj.name);
                    PageCutButtonController.Inst.PageCut(obj.name);
                });
            }
        }
    }

    /// <summary>
    /// 页面切换
    /// </summary>
    /// <param name="name">切换的页面</param>
    public void PageCut(string name)
    {
        if (CutS.ContainsKey(name))
        {
            if (TempCut != null)
            {
                PageActive(TempCut, ButtonState.Normal);
            }
            else
            {
                PageActive(ButtonState.Normal);
            }
            PageActive(CutS[name], ButtonState.Select);
            TempCut = CutS[name];
        }
        else
        {
            Debug.LogWarning(string.Format("页面：{0}不存在", name));
        }
    }

    /// <summary>
    /// 所有页面切换按钮选中或取消
    /// </summary>
    /// <param name="State">选中或取消状态</param>
    void PageActive(ButtonState State)
    {
        foreach (KeyValuePair<string, Button> page in CutS)
        {
            page.Value.GetComponent<ButtonStateTool>().StateCut(State);
        }
    }

    /// <summary>
    /// 对某个页面切换按钮的选中或取消
    /// </summary>
    /// <param name="button">指定按钮</param>
    /// <param name="State">选中或取消状态</param>
    void PageActive(Button button, ButtonState State)
    {
        button.interactable = State == ButtonState.Normal ? true : false;
        button.GetComponent<ButtonStateTool>().StateCut(State);
    }
}