using Animancer;
using BrewMonster;
using System;
using System.Collections.Generic;
using UnityEngine;
using static CECModel;

public class NPCVisual : MonoBehaviour
{
    [SerializeField] NamedAnimancerComponent namedAnimancer;
    protected CECNPC.INFO m_NPCInfo;
    [SerializeField] private Queue<string> _animationQueue = new Queue<string>();
    [SerializeField] private AnimancerState _currentState;
    private const float fadeTime = .2f;
    private const FadeMode FadeMode = Animancer.FadeMode.FixedDuration;

    public CECNPC.INFO GetNPCINFO => m_NPCInfo;
    public bool TryPlayAction(string animationName, CECAttackEvent cECAttackEvent, bool isHit = false, bool bRestart = true)
    {
        BMLogger.LogMono(this, "HoangDev: TryPlayAction: " + animationName);

        if (namedAnimancer == null) return false;
        BMLogger.LogMono(this, "HoangDev: namedAnimancer == null: " + animationName);

        if (namedAnimancer.IsPlaying(animationName)) return false;
        BMLogger.LogMono(this, "HoangDev: namedAnimancerIsPlaying == null1: " + animationName);
        _currentState = namedAnimancer.TryPlay(animationName, fadeTime);
        if (isHit)
        {
            _currentState.Events.OnEnd = () => SetHitOnEnd(cECAttackEvent);
        }
        if (_currentState != null)
            BMLogger.LogMono(this, "HoangDev: _currentState != null1: " + _currentState.Clip.name);
        return _currentState != null;
    }
    private void SetHitOnEnd(CECAttackEvent cECAttackEvent)
    {
        cECAttackEvent.m_bSignaled = true;
    }
    public void InitNPCEventDoneHandler(CECNPC.INFO iNFO)
    {
        m_NPCInfo = iNFO;
        namedAnimancer = GetComponentInChildren<NamedAnimancerComponent>();
        if (namedAnimancer == null)
        {
            BMLogger.LogWarning("animancer == null");
            return;
        }
        EventBus.SubscribeChannel<QueueNPCActionEvent>(m_NPCInfo.nid, OnQueueAction);
        EventBus.SubscribeChannel<ClearComActFlagEvent>(m_NPCInfo.nid, OnClearComActFlagEvent);
    }
    private void OnClearComActFlagEvent(ClearComActFlagEvent @event)
    {
        if (_currentState != null)
            BMLogger.LogError("HoangDev: OnClearComActFlagEvent _currentState:" + _currentState.Clip.name);

        foreach (var state in _animationQueue)
        {
            BMLogger.LogMono(this,"HoangDev: OnClearComActFlagEvent state:" + state);
        }
        BMLogger.LogMono(this,"HoangDev: OnClearComActFlagEvent");
        _animationQueue.Clear();
    }

    private void Update()
    {
        PlayNext();
    }
    private void OnQueueAction(QueueNPCActionEvent @event)
    {
        if (!EnqueueAnimation(@event))
        {
            BMLogger.LogError("HoangDev : EnqueueAnimation Failed");
        }
    }
    public bool EnqueueAnimation(QueueNPCActionEvent @event)
    {
        if (namedAnimancer == null) return false;
        _animationQueue.Enqueue(@event.AnimationName);

        return true;
    }
    public string animName1;
    private void PlayNext()
    {
        if (_animationQueue.Count == 0)
        {
            return;
        }

        if (_currentState == null) return;
        animName1 = _animationQueue.Peek();
        if (_currentState.NormalizedTime < 1f) return;
        string animName = _animationQueue.Dequeue();
        BMLogger.LogMono(this,"HoangDev: PlayNext: " + animName);
        _currentState = namedAnimancer.TryPlay(animName);
    }
    private void OnDestroy()
    {
        EventBus.UnsubscribeAllInChannel(m_NPCInfo.nid);
    }
    public bool IsAnimationExist(string animationName)
    {
        if (namedAnimancer == null) return false;
        return namedAnimancer.States.TryGet(animationName, out var existingState) ? true : false;
    }
    public bool IsPlayAnimation()
    {
        if (namedAnimancer == null) return false;
        return namedAnimancer.IsPlaying();
    }
    public bool IsPlayAnimation(string animationName)
    {
        if (namedAnimancer == null) return false;
        return namedAnimancer.IsPlaying(animationName);
    }

    /// <summary>
    /// Refresh the namedAnimancer reference when the model changes (e.g., shape change)
    /// 当模型更改时（例如形状更改）刷新namedAnimancer引用
    /// </summary>
    /// <param name="modelRoot">The root GameObject of the model to search for NamedAnimancerComponent / 要搜索NamedAnimancerComponent的模型根GameObject</param>
    public void RefreshNamedAnimancer(GameObject modelRoot = null)
    {
        if (modelRoot != null)
        {
            // Search specifically within the model GameObject's hierarchy
            // 在模型GameObject的层次结构中搜索
            namedAnimancer = modelRoot.GetComponentInChildren<NamedAnimancerComponent>();
        }
        else
        {
            // Fallback to searching from this component's hierarchy
            // 回退到从此组件的层次结构搜索
            namedAnimancer = GetComponentInChildren<NamedAnimancerComponent>();
        }
        
        if (namedAnimancer == null)
        {
            BMLogger.LogWarning($"NPCVisual: RefreshNamedAnimancer - namedAnimancer == null after refresh (modelRoot: {modelRoot?.name ?? "null"})");
        }
        else
        {
            BMLogger.LogMono(this, $"NPCVisual: RefreshNamedAnimancer - Successfully refreshed namedAnimancer from model: {modelRoot?.name ?? "default"}");
        }
    }
}