using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.Linq;

public class ShowControllerXX : MonoBehaviour
{
    public static ShowControllerXX Instance;

    List<BaseShow> lstShow;

    // Start is called before the first frame update
    void Start()
    {
        Instance = this;

        lstShow = new List<BaseShow>();
    }

    public void AddShow(BaseShow bs)
    {
        lstShow.Add(bs);
    }

    public void RemoveShow(BaseShow bs)
    {
        lstShow.Remove(bs);
    }

    public string GetImageShow(Data info, int index)
    {
        var result = lstShow.FirstOrDefault(show =>
            (show.info.ObjectID == info.ObjectID || show.info.ParentID == info.ParentID)
            && show.info.Type == DataType.MultiImage
            && show.info.Index == index
        );

        if (result == null)
        {
            int count = lstShow.Count(show => show.info.ParentID == info.ObjectID);
            if (result == null)
            {
                return info.Title;
            }
            else
            {
                return null;
            }
        }
        else
        {
            ImageShow isResult = (result as ImageShow);
            if (isResult == null)
            {
                return null;
            }
            else
            {
                return isResult.info.Title;
            }
        }
    }

    float distance;
    bool canClickNewStatus;
    ShowBoxCollider tmpSBC;

    // Update is called once per frame
    void FixedUpdate()
    {
        //if (
        //    BaseController.IsJoyStickOnControl
        //    || BaseController.IsKeyOnControl
        //    || BaseController.IsMouseOnControl
        //    || BaseController.IsNavOnControl
        //    )
        if(BaseController.CanControl && 
            !BaseController.IsKeyOnControl && 
            !BaseController.IsNavOnControl &&
            !BaseController.IsJoyStickOnControl)
        {
            foreach (BaseShow show in lstShow)
            {
                if(show.transform.childCount > 0)
                {
                    distance = show.GetComponentsInChildren<Transform>().Min(tran => Vector3.Distance(CommonData.MainCamera.transform.position, tran.position));
                    // Debug.Log(show.name);
                }

                // 获取摄像机与中心位置的距离
                if (distance == 0)
                    distance = Vector3.Distance(CommonData.MainCamera.transform.position, show.transform.position);
                else
                    distance = Mathf.Min(
                        distance,
                        Vector3.Distance(CommonData.MainCamera.transform.position, show.transform.position)
                    );

                canClickNewStatus = (distance <= CommonData.ClickDistance);

                // 可单击状态发生改变（靠近或远离）
                if (show.CanClick != canClickNewStatus)
                {
                    show.CanClick = canClickNewStatus;

                    if (show.info.Clickable)
                    {
                        if (show.CanClick)
                        {
                            tmpSBC = show.gameObject.AddComponent<ShowBoxCollider>();
                            tmpSBC.showHotTip = show.info.ShowHotTip;
                            tmpSBC.showBox = show.info.ShowBox;
                        }
                        else
                        {
                            Destroy(show.gameObject.GetComponent<ShowBoxCollider>());
                        }
                    }

                    show.OnStatusChange();

                    // 启用或禁用选中控制组件
                    if (show.sbc != null)
                    {
                        if (show.CanClick)
                        {
                            show.sbc.enabled = true;
                        }
                        else
                        {
                            show.sbc.enabled = false;
                        }
                    }
                }

                distance = 0f;
            }
        }
    }
}