using System.Collections;
using System.Collections.Generic;
using System.Linq;
using Dreamteck.Splines;
using Lean.Pool;
using UniRx;
using UnityEngine;

namespace Ichni.RhythmGame
{
    /// <summary>
    /// 在轨道上根据百分比进行运动的点
    /// </summary>
    public class TrackPercentPoint : BaseElement
    {
        public Track track;
        public SplinePositioner trackPositioner;
        public FlexibleFloat trackPercent;
        
        private bool isBeyond1 = false;

        public static TrackPercentPoint GenerateElement(string elementName, Track track, FlexibleFloat trackPercent)
        {
            TrackPercentPoint point = LeanPool.Spawn(EditorManager.instance.basePrefabs.emptyObject, track.transform).AddComponent<TrackPercentPoint>();

            point.NewInitialize(elementName, track, trackPercent);
            point.SetParent(track);

            point.isBeyond1 = trackPercent.animations.Any(animation => animation.endValue > 1);//判断是否有超过1的动画，超过1将会循环

            return point;
        }
        
        private void NewInitialize(string elementName, Track track, FlexibleFloat trackPercent)
        {
            base.NewInitialize(elementName);
            this.track = track;
            this.trackPositioner = gameObject.AddComponent<SplinePositioner>();
            this.trackPositioner.spline = track.trackPathSubmodule.path;
            this.trackPercent = trackPercent;
        }
        
        public void Update()
        {
            if (trackPercent.animations.Count > 0)
            {
                trackPercent.UpdateFlexibleFloat(EditorManager.instance.songModule.songTime);
                if (trackPercent.returnType == FlexibleReturnType.MiddleExecuting)
                {
                    float finalValue = trackPercent.value;
                    
                    if (isBeyond1)
                    {
                        finalValue -= Mathf.Floor(finalValue);
                    }
                    
                    trackPositioner.SetPercent(finalValue);
                }
            }
        }
    }
}