using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using AibisDream.Kit;

namespace AibisDream
{
    public class TimelineCenter : Singleton<TimelineCenter>, ITimelineCenter
    {
        private readonly Dictionary<string, DirectorHandler> _timelineDict = new();

        public override void OnSingletonInit()
        {
            RegisterAllDirector();
        }

        private void RegisterAllDirector()
        {
            var allDirectorHandlers = GetComponentsInChildren<DirectorHandler>(true);
            foreach (var directorHandler in allDirectorHandlers)
            {
                _timelineDict.Add(directorHandler.timelineName, directorHandler);
            }
        }

        // -------------------------- 播放控制 --------------------------

        /// <summary>
        /// 播放 Timeline（带完成回调的重载）
        /// </summary>
        public void PlayTimeline(string timelineName, Action onComplete = null)
        {
            if (!_timelineDict.TryGetValue(timelineName, out var directorHandler))
            {
                Debug.LogError($"Timeline {timelineName} not found");
                return;
            }
            
            directorHandler.gameObject.SetActive(true);
            directorHandler.Play(onComplete);
        }

        public IEnumerator PlayTimelineAsync(string name)
        {
            if (!_timelineDict.TryGetValue(name, out var directorHandler))
            {
                Debug.LogError($"Timeline {name} not found");
                yield break;
            }

            directorHandler.gameObject.SetActive(true);
            yield return directorHandler.PlayAsync();
        }

        public void StopTimeline(string timelineName)
        {
            if (!_timelineDict.TryGetValue(timelineName, out var directorHandler))
            {
                Debug.LogError($"Timeline {timelineName} not found");
                return;
            }
            
            directorHandler.Stop();
        }

        public void PauseTimeline(string timelineName)
        {
            if (!_timelineDict.TryGetValue(timelineName, out var directorHandler))
            {
                Debug.LogError($"Timeline {timelineName} not found");
                return;
            }
            
            directorHandler.Pause();
        }

        public void ResumeTimeline(string timelineName)
        {
            if (!_timelineDict.TryGetValue(timelineName, out var directorHandler))
            {
                Debug.LogError($"Timeline {timelineName} not found");
                return;
            }
            
            directorHandler.Resume();
        }

        public void ResetTimeline(string timelineName)
        {
            if (!_timelineDict.TryGetValue(timelineName, out var directorHandler))
            {
                Debug.LogError($"Timeline {timelineName} not found");
                return;
            }

            directorHandler.Reset();
        }
        
        public void HideTimeline(string timelineName)
        {
            if (!_timelineDict.TryGetValue(timelineName, out var directorHandler))
            {
                Debug.LogError($"Timeline {timelineName} not found");
                return;
            }

            directorHandler.gameObject.SetActive(false);
        }

        #region 状态查询

        public double GetPlaybackTime(string name)
        {
            if (!_timelineDict.TryGetValue(name, out var directorHandler))
            {
                Debug.LogError($"Timeline {name} not found");
                return 0;
            }
            
            return directorHandler.GetPlaybackTime();
        }

        public double GetDuration(string name)
        {
            if (!_timelineDict.TryGetValue(name, out var directorHandler))
            {
                Debug.LogError($"Timeline {name} not found");
                return 0;
            }
            
            return directorHandler.GetDuration();
        }

        #endregion

        #region 扩展操作

        public void SetPlaybackSpeed(string name, float speed)
        {
            if (!_timelineDict.TryGetValue(name, out var directorHandler))
            {
                Debug.LogError($"Timeline {name} not found");
                return;
            }
            
            directorHandler.SetPlaybackSpeed(speed);
        }

        public void SeekToTime(string name, double time)
        {
            if (!_timelineDict.TryGetValue(name, out var directorHandler))
            {
                Debug.LogError($"Timeline {name} not found");
                return;
            }
            
            directorHandler.SeekToTime(time);
        }

        #endregion

        #region 批量操作

        public void PauseAll()
        {
            foreach (var directorHandler in _timelineDict.Values)
            {
                directorHandler.Pause();
            }
        }

        public void StopAll()
        {
            foreach (var directorHandler in _timelineDict.Values)
            {
                directorHandler.Stop();
            }
        }

        public void ResetAll()
        {
            foreach (var directorHandler in _timelineDict.Values)
            {
                directorHandler.Reset();
            }
        }

        #endregion


    }

    public interface ITimelineCenter
    {
        void PlayTimeline(string timelineName, Action onComplete = null);
        IEnumerator PlayTimelineAsync(string name);
        void StopTimeline(string timelineName);
        void PauseTimeline(string timelineName);
        void ResumeTimeline(string timelineName);
        void ResetTimeline(string timelineName);

        #region 状态查询

        /// <summary>
        /// 获取当前播放时间
        /// </summary>
        /// <param name="name">Timeline 名称</param>
        /// <returns>当前播放时间</returns>
        double GetPlaybackTime(string name);

        /// <summary>
        /// 获取总时长
        /// </summary>
        /// <param name="name">Timeline 名称</param>
        /// <returns>总时长</returns>
        double GetDuration(string name);

        #endregion

        #region 扩展操作

        /// <summary>
        /// 设置播放速度
        /// </summary>
        /// <param name="name">Timeline 名称</param>
        /// <param name="speed">播放速度</param>
        void SetPlaybackSpeed(string name, float speed);

        /// <summary>
        /// 跳转到指定时间点
        /// </summary>
        /// <param name="name">Timeline 名称</param>
        /// <param name="time">时间点（秒）</param>
        void SeekToTime(string name, double time);

        #endregion

        #region 批量操作

        /// <summary>
        /// 暂停所有 Timeline
        /// </summary>
        void PauseAll();

        /// <summary>
        /// 停止所有 Timeline
        /// </summary>
        void StopAll();

        /// <summary>
        /// 重置所有 Timeline
        /// </summary>
        void ResetAll();

        #endregion
    }
}