using System;
using System.Collections;
using System.Collections.Generic;
using Ichni.RhythmGame.Beatmap;
using Lean.Pool;
using Sirenix.OdinInspector;
using UniRx;
using UnityEngine;
using UnityEngine.Serialization;

namespace Ichni.RhythmGame
{
    public partial class Track : GameElement, IHaveTransformSubmodule, IHaveTimeDurationSubmodule
    {
        #region [暴露属性字段] Essential Configs
        public GameObject trackRenderer;
        #endregion

        #region [子模块接口] Submodules
        public TransformSubmodule transformSubmodule { get; set; }
        public TimeDurationSubmodule timeDurationSubmodule { get; set; }
        public TrackPathSubmodule trackPathSubmodule { get; set; }
        public TrackTimeSubmodule trackTimeSubmodule { get; set; }
        public TrackRendererSubmodule trackRendererSubmodule { get; set; }
        #endregion

        #region [生命周期] Lifecycle & Factory
        public static Track GenerateElement(string elementName, Guid id, List<string> tags, bool isFirstGenerated, GameElement parentElement)
        {
            Track track = LeanPool.Spawn(GameManager.Instance.basePrefabs.track, parentElement.transform).GetComponent<Track>();
            track.Initialize(elementName, id, tags, isFirstGenerated, parentElement);
            if (parentElement is ElementFolder folder)
            {
                folder.trackList.Add(track);
            }

            return track;
        }
        
        public override void SetDefaultSubmodules()
        {
            transformSubmodule = new TransformSubmodule(this);
            timeDurationSubmodule = new TimeDurationSubmodule(this);
            trackPathSubmodule = new TrackPathSubmodule(this, TrackSpaceType.CatmullRom, TrackSamplingType.TimeDistributed, false, false);
            trackTimeSubmodule = null;
            trackRendererSubmodule = null;
        }
        
        public override void AfterInitialize()
        {
            base.AfterInitialize();
            
            GameManager.Instance.trackManager.RegisterTrack(this); 
            
            if (trackPathSubmodule != null && trackPathSubmodule.pathNodeList.Count > 3)
            {
                trackPathSubmodule.ClosePath();
            }

            if(trackRendererSubmodule != null)
            {
                trackRendererSubmodule.meshGenerator.autoUpdate = false;
            }
        }
        #endregion

        #region [轮询更新] Main Update
        public void ManualUpdate(float currentSongTime)
        {
            if (timeDurationSubmodule.CheckTimeInDuration(currentSongTime))
            {
                (trackTimeSubmodule as TrackTimeSubmoduleMovable)?.UpdateTrackPart(currentSongTime);
            }
        }

        public void ManualLateUpdate()
        {
            if(trackPathSubmodule != null) trackPathSubmodule.refreshedThisFrame = false;
        }
        #endregion

        #region [行为重写] Behavior Overrides
        public override void Refresh()
        {
            base.Refresh();
            trackPathSubmodule?.Refresh();
            trackTimeSubmodule?.Refresh();
            trackRendererSubmodule?.Refresh();
        }

        public override void OnDelete()
        {
            GameManager.Instance.trackManager.UnregisterTrack(this);
            if (parentElement is ElementFolder folder) folder.trackList.Remove(this);
        }
        #endregion
    }

    #region [枚举定义] Enums
    public partial class Track
    {
        public enum TrackSpaceType
        {
            CatmullRom = 0,
            BSpline = 1,
            Linear = 3
        }

        public enum TrackSamplingType
        {
            TimeDistributed = 0,
            DistanceDistributed = 1
        }
    }
    #endregion

}