using System;
using System.Collections.Generic;
using Cielonos.Core.Interaction;
using Cielonos.MainGame.Narrative;
using Sirenix.OdinInspector;
using SLSUtilities.FunctionalAnimation;
using SLSUtilities.Narrative;
using UnityEngine;

namespace Cielonos.MainGame.Interactions
{
    /// <summary>
    /// NPC 交互基类。
    /// 场景中的 NPC 挂载此脚本，交互时会自动将自身的 storyId 投递给 StoryDirector。
    /// </summary>
    public class NpcBase : InteractableObjectBase, IFuncAnimExecutor
    {
        #region Fields & Properties

        [SerializeField]
        protected CharacterData characterData;
        
        [TitleGroup("Story Settings", "剧情与对话路由配置", Alignment = TitleAlignments.Centered)]
        [SerializeField]
        [Tooltip("对应 NarrativeEntry 剧情路由表中的 storyId (如 'OldMan')")]
        protected string storyId;

        /// <summary>NPC 的唯一故事 ID。</summary>
        public string StoryId => storyId;

        [TitleGroup("Components & References", "组件与动作数据引用", Alignment = TitleAlignments.Centered)]
        public Animator animator;
        public AnimatorOverrideController animatorOverride;
        public FuncAnimDataCollection fullBodyFuncAnims;
        public VFXData vfxData;

        /// <summary>NPC 专属动画播放子模块</summary>
        [HideInInspector]
        public NpcFuncAnimSubmodule funcAnimSm;

        /// <summary>全局活跃 NPC 查找注册表 (通过 StoryId 和 GameObject 名字进行双重映射查找)</summary>
        
        #endregion

        #region IFuncAnimExecutor Implementation

        public Transform Transform => transform;
        public Vector3 CenterPosition => transform.position;
        public Animator Animator => animator;

        #endregion

        #region Lifecycle Callbacks

        protected virtual void OnEnable()
        {
            StoryDirector.ActiveNpcs[characterData.nameKey] = this;
        }

        protected virtual void OnDisable()
        {
            StoryDirector.ActiveNpcs.Remove(characterData.nameKey);
        }

        private void Start()
        {
            funcAnimSm = new NpcFuncAnimSubmodule(this);
            if (fullBodyFuncAnims != null && fullBodyFuncAnims.animDataList != null)
            {
                foreach (FuncAnimData animData in fullBodyFuncAnims.animDataList)
                {
                    funcAnimSm.Add(animData);
                }
            }
        }

        protected virtual void Update()
        {
            // 推进时间、检测非循环动作结束以及执行重置
            funcAnimSm?.Update(Time.deltaTime);
        }

        protected virtual void LateUpdate()
        {
            // 在物理表现计算完毕后分发每帧的特效/音效等事件
            funcAnimSm?.UpdateEvents();
        }

        #endregion

        #region Interaction Logic

        protected override void InitializeChoices()
        {
            choices.Add(new InteractionChoice("Talk", Talk));
        }

        /// <summary>
        /// 触发对话。NPC 并不感知具体播放哪个 Yarn 节点，完全委托给 StoryDirector 进行状态评估。
        /// </summary>
        public virtual void Talk()
        {
            if (string.IsNullOrEmpty(storyId))
            {
                Debug.LogWarning($"[NpcBase] {gameObject.name} 未配置 storyId，无法启动对话。");
                return;
            }

            if (StoryDirector.Instance == null)
            {
                Debug.LogError("[NpcBase] 启动对话失败：场景中未找到 StoryDirector 实例！");
                return;
            }

            StoryDirector.Instance.PlayStory(storyId);
        }

        #endregion
    }
}