using UnityEngine;
using AibisDream.FixSystem;
using Cinemachine;
using AibisDream.Framework;
using AibisDream.MiniGame.Language;
using System.Collections.Generic;

namespace AibisDream
{
    /// <summary>
    /// 表达系统管理器（粒子表达系统）
    /// </summary>
    public class ExpressionManager : MonoBehaviour
    {
        [Header("系统组件")]
        [SerializeField] private GameObject expressionView;
        
        // 内部组件引用（自动查找）
        private LanguageParticleManager particleManager;

        [Header("默认配置")]
        [SerializeField] private List<string> defaultAnxietyPhrases = new List<string>
        {
            "我好怕",
            "怎么办",
            "不行",
            "好难",
            "做不到"
        };
        [SerializeField] private string defaultTargetSentence = "这是一个测试示例";

        void Start()
        {
            // 注册到系统字典
            FixSystemCenter.SystemDic.Register(this);
            
            // 查找并初始化表达视图
            if (expressionView == null)
            {
                expressionView = transform.Find("Expression View")?.gameObject;
            }
            
            if (expressionView != null)
            {
                expressionView.SetActive(false);
            }

            // 查找粒子管理器
            if (particleManager == null)
            {
                particleManager = GetComponentInChildren<LanguageParticleManager>(true);
            }

            // 注册相机
            var virtualCam = transform.Find("Expression Camera")?.GetComponent<ICinemachineCamera>();
            if (virtualCam != null)
            {
                CameraKit.Instance.RegisterCamera(CameraEnum.Expression, virtualCam);
            }

            var virtualCam2 = transform.Find("Expression Deep Camera")?.GetComponent<ICinemachineCamera>();
            if (virtualCam2 != null)
            {
                CameraKit.Instance.RegisterCamera(CameraEnum.ExpressionDeep, virtualCam2);
            }
        }

        /// <summary>
        /// 打开表达视图（只显示美术背景，不启动粒子系统）
        /// </summary>
        public void OpenView()
        {
            if (expressionView != null)
            {
                expressionView.SetActive(true);
            }
        }

        /// <summary>
        /// 启动粒子系统（在打开视图后调用，通常通过 Yarn 对话控制）
        /// </summary>
        /// <param name="anxietyPhrases">焦虑短句列表（非目标字符会随机组成这些短句）</param>
        /// <param name="targetSentence">目标句子</param>
        /// <param name="completionNodeName">完成时触发的对话节点名称（可选）</param>
        public void StartSystem(List<string> anxietyPhrases, string targetSentence, string completionNodeName = null)
        {
            if (particleManager != null)
            {
                // 使用传入的配置，如果没有则使用默认配置
                var phrases = anxietyPhrases ?? defaultAnxietyPhrases;
                var sentence = targetSentence ?? defaultTargetSentence;
                
                particleManager.InitializeSystem(phrases, sentence, completionNodeName);
            }
        }

        /// <summary>
        /// 启动粒子系统（字符串数组版本，方便 Yarn 调用）
        /// </summary>
        public void StartSystem(string[] anxietyPhrases, string targetSentence, string completionNodeName = null)
        {
            List<string> phrasesList = anxietyPhrases != null ? new List<string>(anxietyPhrases) : null;
            StartSystem(phrasesList, targetSentence, completionNodeName);
        }

        /// <summary>
        /// 关闭表达系统
        /// </summary>
        public void CloseView()
        {
            if (expressionView != null)
            {
                expressionView.SetActive(false);
            }

            if (particleManager != null)
            {
                particleManager.StopSystem();
            }
        }

        /// <summary>
        /// 重置系统（保持当前配置）
        /// </summary>
        public void ResetSystem(bool playEntranceEffect = true)
        {
            if (particleManager != null)
            {
                particleManager.ResetGame(playEntranceEffect);
            }
        }

        private void OnDestroy()
        {
            CameraKit.Instance?.UnRegisterCamera(CameraEnum.Expression);
            CameraKit.Instance?.UnRegisterCamera(CameraEnum.ExpressionDeep);
        }
    }
}