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;
    public CECNPC.INFO GetNPCINFO => m_NPCInfo;
#if UNITY_EDITOR
    [SerializeField] bool isDebug;
    public void DEBUG(string text)
    {
        if (!isDebug) return;
        BMLogger.LogError(text);
    }
#endif
    public bool TryPlayAction(string animationName, CECAttackEvent cECAttackEvent, bool isHit = false)
    {
#if UNITY_EDITOR
        DEBUG("HoangDev: TryPlayAction: " + animationName); 
#endif
        if (namedAnimancer == null) return false;
        if (namedAnimancer.IsPlaying(animationName)) return false;
        _currentState = namedAnimancer.TryPlay(animationName);
        if (isHit)
        {
            _currentState.Events.OnEnd = ()=>SetHitOnEnd(cECAttackEvent);
        }
        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)
        {
            BrewMonster.BMLogger.LogError("animancer == null");
            return;
        }
        EventBus.SubscribeChannel<QueueNPCActionEvent>(m_NPCInfo.nid, OnQueueAction);
        EventBus.SubscribeChannel<ClearComActFlagEvent>(m_NPCInfo.nid, OnClearComActFlagEvent);
    }

    private void OnClearComActFlagEvent(ClearComActFlagEvent @event)
    {
        _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;
    }
    private void PlayNext()
    {
        if (_animationQueue.Count == 0)
        {
            return;
        }
        if (_currentState == null) return;
        if (_currentState.NormalizedTime < 1f) return;
        string animName = _animationQueue.Dequeue();
        _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);
    }
}