using System.Collections;
using System.Collections.Generic;
using AibisDream.Framework;
using UnityEngine;

namespace AibisDream
{
    public class ActorAnima : AbsActor
    {
        private const string HashPrefix = "#hash.";

        private Animator _animator;
        private Dictionary<int, string> _stateNameDict;

        protected override void Init()
        {
            _animator = GetComponent<Animator>();
            // 设置基本信息
            base.Init();
            // 获取Controller
            actorData.actorType = ActorType.Anima;
            var controller = ResourceKit.LoadAssetSync<RuntimeAnimatorController>($"Animation/{ActorName}");
            _animator.runtimeAnimatorController = controller;

            // 保存事件
            actorData.onSave.AddListener(() =>
            {
                actorData.stateName =
                    HashPrefix + _animator.GetCurrentAnimatorStateInfo(0).shortNameHash;
            });
            
            // 加载初始状态
            if (!string.IsNullOrWhiteSpace(actorData.stateName))
            {
                ChangeState(actorData.stateName);
            }
        }

        public override void ChangeState(string animaName)
        {
            if (animaName.StartsWith(HashPrefix))
            {
                var hash = int.Parse(animaName[HashPrefix.Length..]);
                _animator.Play(hash);
            }
            else
            {
                _animator.Play(animaName);
            }
        }

        public override IEnumerator ChangeStateAsync(string animaName)
        {
            _animator.Play(animaName);

            // 等待一帧确保动画状态切换完成
            yield return null;

            // 等待直到动画状态名称匹配
            while (!_animator.GetCurrentAnimatorStateInfo(0).IsName(animaName))
            {
                yield return null;
            }

            var info = _animator.GetCurrentAnimatorStateInfo(0);
            yield return new WaitForSeconds(info.length);
        }

        private void OnDestroy()
        {
            actorData.onSave.RemoveAllListeners();
        }
    }
}