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

namespace Ichni.RhythmGame
{
    public partial class TrackHeadPoint : GameElement, IHaveTimeDurationSubmodule
    {
        public Track track;
        public TrackTimeSubmoduleMovable trackTimeSubmoduleMovable;
        public SplinePositioner trackPositioner;

        public TimeDurationSubmodule timeDurationSubmodule { get; set; }
        public bool motionApplyRotation;
        public Vector3 motionEulerAngles;
        
        public static TrackHeadPoint GenerateElement(string elementName, Guid id, List<string> tags,
            bool isFirstGenerated, Track track, bool motionApplyRotation, Vector3 motionEulerAngles)
        {
            TrackHeadPoint head = Instantiate(GameManager.instance.basePrefabs.emptyObject, track.transform).AddComponent<TrackHeadPoint>();

            head.Initialize(elementName, id, tags, isFirstGenerated, track);
            head.track = track;
            head.trackPositioner = head.gameObject.AddComponent<SplinePositioner>();
            head.trackPositioner.spline = track.trackPathSubmodule.path;
            head.trackTimeSubmoduleMovable = track.trackTimeSubmodule as TrackTimeSubmoduleMovable;
            
            head.motionApplyRotation = motionApplyRotation;
            head.trackPositioner.motion.applyRotation = motionApplyRotation;
            head.motionEulerAngles = motionEulerAngles;
            head.trackPositioner.motion.rotationOffset = motionEulerAngles;
            
            return head;
        }

        public override void SetDefaultSubmodules()
        {
            timeDurationSubmodule = new TimeDurationSubmodule(this);
        }
        public void Update()
        {
            if (track.timeDurationSubmodule.CheckTimeInDuration(GameManager.instance.songTime))
            {
                track.trackPathSubmodule.UpdatePoint(transform, trackTimeSubmoduleMovable.headPercent);
                //trackPositioner.SetPercent(trackTimeSubmoduleMovable.headPercent);
            }
        }
    }

    public partial class TrackHeadPoint
    {
        public override void SaveBM()
        {
            matchedBM = new TrackHeadPoint_BM(elementName, elementGuid, tags, parentElement.matchedBM as GameElement_BM, 
                motionApplyRotation, motionEulerAngles);
        }
    }

    namespace Beatmap
    {
        public class TrackHeadPoint_BM : GameElement_BM
        {
            public bool motionApplyRotation = false;
            public Vector3 motionEulerAngles;
            
            public TrackHeadPoint_BM()
            {

            }

            public TrackHeadPoint_BM(string elementName, Guid elementGuid, List<string> tags,
                GameElement_BM attachedElement, bool motionApplyRotation, Vector3 motionEulerAngles)
                : base(elementName, elementGuid, tags, attachedElement)
            {
                this.motionApplyRotation = motionApplyRotation;
                this.motionEulerAngles = motionEulerAngles;
            }

            public override void ExecuteBM()
            {
                matchedElement = TrackHeadPoint.GenerateElement(elementName, elementGuid, tags, false,
                    GetElement(attachedElementGuid) as Track, motionApplyRotation, motionEulerAngles);
            }
        }
    }
}