using System;
using System.Collections;
using AibisDream.Framework;
using AibisDream.Utility;
using DG.Tweening;
using Newtonsoft.Json;
using UnityEngine;
using UnityEngine.Events;
using Object = UnityEngine.Object;

namespace AibisDream
{
    /// <summary>
    /// 角色基类
    /// 有Sprite实现和Animator实现
    /// </summary>
    public abstract class AbsActor : MonoBehaviour
    {
        public ActorData actorData;
        public string ActorName => actorData.actorName;
        public string SlotName => actorData.slotName;
        protected SpriteRenderer spriteRenderer;

        public void Init(string actorName, ActorSlot slot)
        {
            actorData = new ActorData
            {
                actorName = actorName,
                slotName = slot.slotName,
                alpha = 0
            };
            
            Init();
            SetSlot(slot);
        }

        public void Init(ActorData data, ActorSlot slot)
        {
            actorData = data;
            Init();
            SetSlot(slot);
        }

        protected virtual void Init()
        {
            gameObject.name = ActorName;
            spriteRenderer = GetComponent<SpriteRenderer>();
            spriteRenderer.SetAlpha(0);
        }

        public void Show()
        {
            actorData.alpha = 1;
            spriteRenderer.SetAlpha(1);
        }

        public void Hide()
        {
            actorData.alpha = 0;
            spriteRenderer.SetAlpha(0);
        }
        
        public void SetSlot(ActorSlot slot)
        {
            transform.position = slot.Position;
            spriteRenderer.sortingOrder = slot.sortingOrder;
            spriteRenderer.sortingLayerID = slot.sortingLayer;
            
            actorData.slotName = slot.slotName;
        }
        
        public IEnumerator FadeInAsync(float duration)
        {
            actorData.alpha = 1;
            yield return spriteRenderer.DOFade(1, duration).WaitForCompletion();
        }

        public IEnumerator FadeOutAsync(float duration)
        {
            actorData.alpha = 0;
            yield return spriteRenderer.DOFade(0, duration).WaitForCompletion();
        }

        public void SetAlpha(int alpha)
        {
            actorData.alpha = alpha;
            spriteRenderer.SetAlpha(alpha);
        }

        public abstract void ChangeState(string stateName);

        public virtual IEnumerator ChangeStateAsync(string stateName)
        {
            ChangeState(stateName);
            yield break;
        }
    }

    // 工厂类
    public class ActorFactory
    {
        private readonly Transform _actorRoot;
        private readonly GameObject _actorAnimaPrefab;
        private readonly GameObject _spriteActorPrefab;
        
        public ActorFactory(Transform actorRoot)
        {
            _actorRoot = actorRoot;
            _actorAnimaPrefab = ResourceKit.LoadAssetSync<GameObject>(ConstRef.ActorPrefabName);
            _spriteActorPrefab = ResourceKit.LoadAssetSync<GameObject>(ConstRef.SpriteActorPrefabName);
        }
        
        public AbsActor CreateActor(string actorName, ActorSlot slot, ActorType actorType)
        {
            var actor = actorType switch
            {
                ActorType.Sprite => Object.Instantiate(_spriteActorPrefab, _actorRoot).GetComponent<AbsActor>(),
                ActorType.Anima => Object.Instantiate(_actorAnimaPrefab, _actorRoot).GetComponent<AbsActor>(),
                _ => null
            };

            if (actor)
            {
                actor.Init(actorName, slot);
            }
            
            return actor;
        }
        
        public AbsActor CreateActor(ActorData actorData, ActorSlot slot)
        {
            var actor = actorData.actorType switch
            {
                ActorType.Sprite => Object.Instantiate(_spriteActorPrefab, _actorRoot).GetComponent<AbsActor>(),
                ActorType.Anima => Object.Instantiate(_actorAnimaPrefab, _actorRoot).GetComponent<AbsActor>(),
                _ => null
            };

            if (actor)
            {
                actor.Init(actorData, slot);
            }
            
            return actor;
        }
    }

    public enum ActorType
    {
        Sprite,
        Anima
    }
    
    [Serializable]
    public class ActorData
    {
        [JsonIgnore] public UnityEvent onSave = new();
        
        public string actorName;
        public string slotName;
        public ActorType actorType;
        public string stateName;
        public float alpha;
    }
}