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

[AddComponentMenu("AlarmObjectPool/本地告警对象池")]
/// <summary>
/// 本地告警对象池
/// </summary>
public class AlarmObjectPool : MonoBehaviour
{
    public static AlarmObjectPool instance;


    #region 池对象操作

    //-------预制体-------

    /// <summary>
    /// 报警预制体
    /// </summary>
    //public GameObject item_prefab;

    //-------池对象-------

    /// <summary>
    /// 报警
    /// </summary>
    public Queue<LocalVideoAlarmItem> alarm_item_pool = new Queue<LocalVideoAlarmItem>();

    /// <summary>
    /// 按钮
    /// </summary>
    public Queue<Button> buttonImages_pool = new Queue<Button>();
    //-------池操作-------

    /// <summary>
    /// 从池中取出
    /// </summary>
    /// <typeparam name="T"></typeparam>
    /// <param name="type"></param>
    /// <returns></returns>
    public T GetItemFromPool<T>(GameObject item_prefab)
    {
        object resoult = null;
        switch (typeof(T).Name)
        {
            case "LocalVideoAlarmItem":
                if (alarm_item_pool.Count > 0)
                {
                    var item = alarm_item_pool.Dequeue();
                    item.gameObject.SetActive(true);
                    resoult = item;
                }
                else
                {
                    var temp = Instantiate(item_prefab);
                    resoult = temp.GetComponent<LocalVideoAlarmItem>();
                }
                break;
            case "Button":
                {
                    if (buttonImages_pool.Count > 0)
                    {
                        var item = buttonImages_pool.Dequeue();
                        item.gameObject.SetActive(true);
                        item.transform.GetChild(0).gameObject.SetActive(false);
                        resoult = item;
                    }
                    else
                    {
                        var temp = Instantiate(CalendarDetails.Inst.preform);
                        temp.gameObject.SetActive(true);
                        temp.transform.GetChild(0).gameObject.SetActive(false);
                        resoult = temp.GetComponent<Button>();
                    }
                }
                break;
            default:
                break;
        }
        return (T)resoult;
    }

    /// <summary>
    /// 回收至池中
    /// </summary>
    /// <typeparam name="T"></typeparam>
    /// <param name="item"></param>
    public void PushItemToPool<T>(T item)
    {
        switch (item)
        {
            case LocalVideoAlarmItem:
                LocalVideoAlarmItem alarm_temp = item as LocalVideoAlarmItem;
                alarm_temp.transform.SetParent(null);
                alarm_temp.gameObject.SetActive(false);
                alarm_temp.sprites.Clear();
                alarm_item_pool.Enqueue(alarm_temp);
                break;
            case Button:
                Button button = item as Button;
                button.onClick.RemoveAllListeners();
                button.transform.SetParent(null);
                button.gameObject.SetActive(false);
                buttonImages_pool.Enqueue(button);
                break;
            default: break;
        }
    }
    #endregion

    private void Awake()
    {
        instance = this;
    }



    // Start is called before the first frame update
    void Start()
    {

    }

    // Update is called once per frame
    void Update()
    {

    }
}