// 本脚本只在不存在时会生成一次。已存在不会再次生成覆盖

using System;
using System.Collections.Generic;
using FairyGUI;
using UnityEngine;
using NBC;
using UIPanel = NBC.UIPanel;

namespace NBF
{
    public partial class PlayerPanel : UIPanel
    {
        private int TryGetTime = 5;

        protected override void OnShowed()
        {
            this.AutoAddClick(OnClick);
            TryGetTime = 5;
            Progress.max = 1;
        }

        protected override void OnInit()
        {
            SwipeGesture gesture = new SwipeGesture(BtnPause);
            gesture.onBegin.Set(OnSwipeBegin);
            gesture.onMove.Set(OnSwipeMove);
            gesture.onEnd.Set(OnSwipeEnd);
            gesture.onAction.Add(OnSwipeGesture);

            Game.Instance.PreLoadNextData(Nmsl);
            // ResetPlayerPos();
        }

        private void Nmsl()
        {
            Play(0);
        }

        #region 视频UI组件管理

        // private void ResetPlayerPos()
        // {
        //     for (int i = 0; i < _videoPlayers.Count; i++)
        //     {
        //         var player = _videoPlayers[i];
        //         player.y = BtnPause.height * (i - 1);
        //         player.x = 0;
        //         player.size = BtnPause.size;
        //     }
        // }

        #endregion

        #region 视频数据处理

        // private int _tryTime = 1;
        // private int _lastPlayValue;

        private int _nowIndex = 0;

        public void Play(int value = 0)
        {
            var nowIndex = _nowIndex + value;
            VideoTop.PlayVideo(nowIndex - 1, VideoPlayMode.Top);
            VideoBottom.PlayVideo(nowIndex + 1, VideoPlayMode.Bottom);
            Video.PlayVideo(nowIndex, VideoPlayMode.Mid);
            _nowIndex = nowIndex;
            Video.height = BtnPause.height;
            VideoTop.height = BtnPause.height;
            VideoBottom.height = BtnPause.height;
            VideoManager.Instance.ReturnPlayer(_nowIndex);
        }

        #endregion

        #region 手势

        private float _defY = 0;
        private float _offsetValue;

        private void OnSwipeBegin(EventContext context)
        {
            _offsetValue = 0;
        }

        private void OnSwipeMove(EventContext context)
        {
            // if (IsLoading) return;
            var gesture = context.sender as SwipeGesture;
            if (gesture == null) return;
            _offsetValue += gesture.delta.y;
            if (_nowIndex == 0 && _offsetValue > 0)
            {
                return; // 第一个不允许滑动至上一个
            }

            Video.y = _defY + _offsetValue;
        }

        private void OnSwipeEnd(EventContext context)
        {
            Video.y = _defY;
        }

        private void OnSwipeGesture(EventContext context)
        {
            // if (IsLoading) return;
            SwipeGesture swipeGesture = (SwipeGesture)context.sender;
            var value = Math.Abs(_offsetValue);
            if (value < 300)
            {
                return;
            }

            if (swipeGesture.position.y < 0) //向上滑动
            {
                Log.Info($"向上滑动 切换下一个视频 _offsetValue={_offsetValue} y={swipeGesture.position.y}");
                if (Game.Instance.IsLastVideo(_nowIndex))
                {
                    Game.Instance.PreLoadNextData();
                    return;
                }

                Play(1);
            }
            else if (_nowIndex > 0)
            {
                Log.Info($"向下滑动 切换上一个视频 _offsetValue={_offsetValue} y={swipeGesture.position.y}");
                Play(-1);
            }
        }

        #endregion

        protected override void OnUpdate()
        {
            base.OnUpdate();

            // Progress.value = VideoManager.Instance.PlayProgress;
        }

        private void OnClick(GComponent btn)
        {
            // if (btn == BtnNext)
            // {
            //     // VideoManager.Instance.Next();
            // }
            // else if (btn == BtnPrev)
            // {
            //     // VideoManager.Instance.Previous();
            // }
        }
    }
}