using Byn.Unity.Examples;
using System.Collections;
using System.Collections.Generic;
using TMPro;
using UnityEngine;
using UnityEngine.Pool;
using UnityEngine.UI;
using WI;

namespace SHINT.UI
{
    public class UI_ActiveUserCount : MonoBehaviour
    {
        int userCount;
        public GameObject prf_UserIcon;
        TextMeshProUGUI userCounter;
        Image activeState;
        public RectTransform userIconContainer;
        ObjectPool<GameObject> iconPool;
        List<GameObject> activeIcons = new();
        public override void AfterStart()
        {
            iconPool = new ObjectPool<GameObject>(CreateIcon, GetIcon, ReleaseIcon, null, true, 20);
        }

        void ReleaseIcon(GameObject icon)
        {
            activeIcons.Remove(icon);
            icon.SetActive(false);
        }

        void GetIcon(GameObject icon)
        {
            activeIcons.Add(icon);
            icon.SetActive(true);
        }

        GameObject CreateIcon()
        {
            var icon = Instantiate(prf_UserIcon);
            icon.transform.SetParent(userIconContainer);
            icon.transform.localScale = new Vector3(1, 1, 1);
            icon.SetActive(false);
            return icon;
        }
        public void SetActivateUserCount(int count)
        {
            activeState.color = count == 0 ? Color.gray : Color.green;
            userCount = count;
            //userCounter.text = userCount.ToString();

            int c = activeIcons.Count;
            for(int i =0;i<c;++i)
            {
                iconPool.Release(activeIcons[0]);
            }

            for(int i =0;i<count;++i)
            {
                var icon = iconPool.Get();
                icon.GetComponent<UI_UserIcon>().SetId("Guest_"+i.ToString());
            }
        }
    }
}