using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using Dreamteck.Splines;
using Ichni.RhythmGame.Beatmap;
using Unity.VisualScripting;
using UnityEngine;

namespace Ichni.RhythmGame
{
    public partial class Hold : NoteBase
    {
        public float holdEndTime;
        public float holdingTime;
        public bool isHolding;
        
        public static Hold GenerateElement(string elementName, Guid id, List<string> tags, bool isFirstGenerated,
            GameElement parentElement, float exactJudgeTime, float holdEndTime)
        {
            Hold hold = Instantiate(GameManager.instance.basePrefabs.holdNote, parentElement.transform).GetComponent<Hold>();
            
            hold.Initialize(elementName, id, tags, isFirstGenerated, parentElement);
            hold.exactJudgeTime = exactJudgeTime;
            hold.holdEndTime = holdEndTime;
            hold.holdingTime = 0;

            if (parentElement.TryGetComponent(out Track track))
            {
                if (track.trackTimeSubmodule != null)
                {
                    hold.track = track;
                    hold.trackPositioner = hold.AddComponent<SplinePositioner>();
                    hold.trackPositioner.spline = track.trackPathSubmodule.path;
                    hold.trackPositioner.updateMethod = SplineUser.UpdateMethod.LateUpdate;
                    hold.isOnTrack = true;
                    hold.UpdateNoteInTrack();
                }
                else
                {
                    throw new Exception("如果Note要生成在Track上，Track必须有TrackTimeSubmodule组件。");
                }
            }
            else
            {
                hold.track = null;
                hold.isOnTrack = false;
            }
            
            return hold;
        }
    }

    public partial class Hold
    {
        public override void UpdateNoteInMovableTrack()
        {
            if (!isHolding && !isFinalJudged)
            {
                base.UpdateNoteInMovableTrack();
            }

            if (noteVisual is NoteVisualBaseHold noteVisualHold)
            {
                noteVisualHold.UpdateHoldInMovableTrack();
            }
        }

        public override void UpdateNoteInStaticTrack()
        {
            base.UpdateNoteInStaticTrack();
            if (noteVisual is NoteVisualBaseHold noteVisualHold)
            {
                noteVisualHold.UpdateHoldInStaticTrack();
            }
        }
    }
    
    public partial class Hold
    {
        public override void SetDefaultSubmodules()
        {
            base.SetDefaultSubmodules();
            noteAudioSubmodule = new NoteAudioSubmodule(this, "DefaultTap");
        }

        public override void SaveBM()
        {
            matchedBM = new Hold_BM(elementName, elementGuid, tags, parentElement.matchedBM as GameElement_BM, exactJudgeTime, holdEndTime);
        }
    }

    public partial class Hold
    {
        protected override void Update()
        {
            if (!GameManager.instance.audioManager.isUpdating)
            {
                return;
            }
            
            float songTime = GameManager.instance.songTime;

            if (isFirstJudged && songTime < exactJudgeTime)
            {
                isFirstJudged = false;
                isHolding = false;
                isFinalJudged = false;
                holdingTime = 0;
            }
            
            if (isHolding)
            {
                holdingTime = songTime - exactJudgeTime;
            }
            
            /*
            if (isHolding && songTime > holdEndTime)
            {
                isHolding = false;
                isFinalJudged = true;
                noteAudioSubmodule.PlayNoteJudgeAudios(EditorManager.instance.currentJudgeType);
            }

            if (!isFirstJudged && songTime >= exactJudgeTime)
            {
                if (!isFirstJudged)
                {
                    isFirstJudged = true;
                }

                if (isFirstJudged && !isHolding && songTime < holdEndTime)
                {
                    isHolding = true;
                }
            }

            if (noteJudgeSubmodule != null && !EditorManager.instance.cameraManager.isSceneCameraActive)
            {
                foreach (NoteJudgeUnit unit in noteJudgeSubmodule.judgeUnitList.Where(unit => unit.isShowingJudge))
                {
                    unit.UpdateJudge();
                }
            }
            */
            
            noteScreenPosition = GameManager.instance.cameraManager.gameCamera.gameCamera.WorldToScreenPoint(noteVisual.transform.position);
            
            /*
            if (noteVisual != null)
            {
                noteVisual.effectSubmodule.effectCollection["Generate"].ForEach(e => e.UpdateEffect(exactJudgeTime));
                noteVisual.effectSubmodule.effectCollection["GeneralJudge"].ForEach(e => e.UpdateEffect(holdEndTime));
                noteVisual.effectSubmodule.effectCollection["Holding"].ForEach(e => e.UpdateEffect(exactJudgeTime));

                switch (EditorManager.instance.currentJudgeType)
                {
                    case NoteJudgeType.Perfect:
                        noteVisual.effectSubmodule.effectCollection["Perfect"].ForEach(e => e.UpdateEffect(holdEndTime));
                        break;
                    case NoteJudgeType.Good:
                        noteVisual.effectSubmodule.effectCollection["Good"].ForEach(e => e.UpdateEffect(holdEndTime));
                        break;
                    case NoteJudgeType.Bad:
                        noteVisual.effectSubmodule.effectCollection["Bad"].ForEach(e => e.UpdateEffect(holdEndTime));
                        break;
                    case NoteJudgeType.Miss:
                        noteVisual.effectSubmodule.effectCollection["Miss"].ForEach(e => e.UpdateEffect(holdEndTime));
                        break;
                }

                if (EditorManager.instance.cameraManager.haveGameCamera)
                {
                   
                }
            }
            */
        }
        
        private void LateUpdate()
        {
            if (isOnTrack)
            {
                UpdateNoteInTrack();
            }
        }
    }

    namespace Beatmap
    {
        public class Hold_BM : NoteBase_BM
        {
            public float holdEndTime;
            
            public Hold_BM()
            {

            }

            public Hold_BM(string elementName, Guid elementGuid, List<string> tags, GameElement_BM attachedElement, float exactJudgeTime, float holdEndTime)
                : base(elementName, elementGuid, tags, attachedElement, exactJudgeTime)
            {
                this.holdEndTime = holdEndTime;
            }

            public override void ExecuteBM()
            {
                matchedElement = Hold.GenerateElement(elementName, elementGuid, tags, false,
                    GetElement(attachedElementGuid), exactJudgeTime, holdEndTime);
            }

            public override GameElement DuplicateBM(GameElement parent)
            {
                return Hold.GenerateElement(elementName, Guid.NewGuid(), tags, false, parent, exactJudgeTime, holdEndTime);
            }
        }
    }
}