using Cysharp.Threading.Tasks;
using DG.Tweening;
using Stary.Evo;
using UnityEngine;

namespace Main
{
    /// <summary>
    /// 用户未靠近时，“请跟我来”手势
    /// </summary>
    public class KKGuideState : AbstractFSMIState
    {
        private string aniGuideLeftName = "anim_ip_guide_inviteL";
        private string aniGuideRightName = "anim_ip_guide_inviteR";

        public KKGuideState(IFsmSystem system) : base(system)
        {
        }

        public override UniTask OnEnterAsync()
        {
            return UniTask.CompletedTask;
        }

        public override UniTask OnExitAsync()
        {
            return UniTask.CompletedTask;
        }

        public override async UniTask OnEnterAsync<T>(T param)
        {
            KKFsmSystem kkFsmSystem = FsmSystem as KKFsmSystem;
            Transform NextPoint = param as Transform;
            if (NextPoint != null)
            {
                // 获取主摄像机并计算相对位置
                var camera = Camera.main.transform;
                Vector3 viewportPos = camera.GetComponent<Camera>().WorldToViewportPoint(NextPoint.position);

                // 根据视口坐标判断左右（视口X坐标<0.5为左侧，>=0.5为右侧）
                if (viewportPos.x < 0.5f)
                {
                    kkFsmSystem.animator.CrossFade(aniGuideLeftName,0.2f, 0, 0f);
                }
                else
                {
                    kkFsmSystem.animator.CrossFade(aniGuideRightName,0.2f, 0, 0f);
                }
             
                float animProgress = 0;
                while (animProgress <= 0.99f)
                {
                    Debug.Log(animProgress);
                    animProgress=kkFsmSystem.GetAnimationProgress(0);
                    await UniTask.Yield();
                }

                kkFsmSystem.kk.transform.DOScale(Vector3.zero, 0.5f).OnComplete(() =>
                {
                    kkFsmSystem.kk.transform.position = NextPoint.position;
                    kkFsmSystem.kk.transform.DOScale(Vector3.one, 0.5f);

                    FsmSystem.SetCurState(nameof(KKIdleState),(object)KKIdleStateParam.IsVoice);
                });
            }
        }
    }
}