using UnityEngine;

namespace AibisDream
{
    public class RandomAnimatorHandler : MonoBehaviour
    {
        [SerializeField] private Animator targetAnimator;
        public string handelrName;
        [SerializeField] private Vector2 randomDurationRange;
        [SerializeField] private int randomCount;
        [SerializeField] private bool playOnAwake;

        private bool _isPlaying;
        private float _curduration;

        private void Awake()
        {
            if (playOnAwake)
            {
                StartRandomPlay();
            }
        }

        private void OnEnable()
        {
            AnimatorCenter.Instance.RegisterRandomHandler(this);
        }

        private void OnDisable()
        {
            AnimatorCenter.Instance.UnregisterRandomHandler(this);
        }

        private void Update()
        {
            if (_isPlaying)
            {
                _curduration -= Time.deltaTime;
                if (_curduration <= 0)
                {
                    RandomPlay();
                    _curduration = RandomDuration();
                }
            }
        }
        
        private void RandomPlay()
        {
            targetAnimator.ResetTrigger("RandomPlay");

            // 设置参数
            var index = RandomIndex();
            targetAnimator.SetInteger("RandomIndex", index);
            // 播放
            targetAnimator.SetTrigger("RandomPlay");
            
        }

        public void StartRandomPlay()
        {
            _isPlaying = true;
            _curduration = RandomDuration();
        }

        public void StopRandomPlay()
        {
            _isPlaying = false;
        }

        private float RandomDuration()
        {
            return Random.Range(randomDurationRange.x, randomDurationRange.y);
        }

        private int RandomIndex()
        {
            return Random.Range(0, randomCount);
        }
    }
}