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

/**
 * 选择buff脚本
 * @Author: chenxin
 * @Date: 2020-10-19 15:55:46
 */
namespace KTGMGemClient
{
    public class EndlessBuffSelect : Singleton<EndlessBuffSelect>
    {
        public List<SelectBuffIcon> IconList;

        public event Action<int> BuffSelectCompleted;

        /// <summary>
        /// 当前选择的索引，-1表示还未选中其中一个
        /// </summary>
        private int SelectedIndex = -1;

        public Button SelectBtn;

        public GameObject EffectPrefabObject;

        private GameObject effectObj;

        private Vector3[] effectPosArr = { new Vector3(-21.6f, 0, 6.6f), new Vector3(0, 0, 6.6f), new Vector3(21.6f, 0, 6.6f) };

        // Start is called before the first frame update
        private void Start()
        {
            for (int i = 0; i < IconList.Count; ++i)
            {
                IconList[i].OnSelectBuffCompleted += OnClick;
            }

            SelectBtn.onClick.AddListener(OnClickSelectBtn);
        }

        private void OnEnable()
        {
            SelectedIndex = -1;

            for (int i = 0; i < IconList.Count; ++i)
            {
                IconList[i].Reset();
            }

            AudioSourceManager.Ins?.Play(AudioEnum.BuffAppear);
        }

        private void OnDisable()
        {
            if (effectObj != null)
                Destroy(effectObj);
        }

        public void OnClick(int index)
        {
            // 如果点击同一个直接返回
            if (index == SelectedIndex) return;

            // 如果已经选择过了，设置一个之前选择的item
            if (SelectedIndex != -1)
                IconList[SelectedIndex].SetState(false);

            SelectedIndex = index;
            IconList[index].SetState(true);
            //PlayEffect();
        }


        private void PlayEffect()
        {
            if (effectObj == null)
            {
                effectObj = Instantiate(EffectPrefabObject);
                GameObject particleSystemObject = GameObject.Find("ParticleSystemObject");
                effectObj.transform.SetParent(particleSystemObject.transform, false);
                effectObj.transform.localScale = new Vector3(1.5f, 1.5f, 1.5f);
            }
            effectObj.transform.localPosition = effectPosArr[SelectedIndex];
            ParticleSystem ps = effectObj.transform.GetChild(0).GetComponent<ParticleSystem>();
            ps.Play();
        }

        private void StopEffect()
        {
            if (effectObj != null)
            {
                ParticleSystem ps = effectObj.transform.GetChild(0).GetComponent<ParticleSystem>();
                ps.Stop();
                ps.Clear();
            }
        }

        /// <summary>
        /// 点击了选择按钮
        /// </summary>
        public void OnClickSelectBtn()
        {
            if (SelectedIndex == -1) return;

            int index = SelectedIndex;

            AudioSourceManager.Ins.Play(AudioEnum.UI);

            HideBuffUI();

            if (BuffSelectCompleted != null)
                BuffSelectCompleted(index);
        }

        public void ShowBuffUI()
        {
            EndlessMaskUI.instance.Show();
            gameObject.SetActive(true);
        }

        public void HideBuffUI()
        {
            EndlessMaskUI.instance.Hide();
            StopEffect();
            gameObject.SetActive(false);
        }

        public void Refresh(List<EndlessBuffConfig> list)
        {
            for (int i = 0; i < IconList.Count; ++i)
            {
                IconList[i].SetIcon(list[i].Config.image);
                IconList[i].SetQuality(list[i].Config.rare);
                IconList[i].SetName(list[i].Config.name);
                IconList[i].SetEffect(list[i].Config.brief);
                IconList[i].SetRare(list[i].Config.rare);
            }
        }
    }
}