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

namespace Ichni.RhythmGame
{
    public partial class Scale : AnimationBase
    {
        #region [暴露属性字段与关联] Exposed Fields & References
        public TransformSubmodule targetTransformSubmodule;
        public FlexibleFloat scaleX, scaleY, scaleZ;
        #endregion

        #region [生命周期与工厂] Lifecycle & Factory
        public static Scale GenerateElement(string elementName, Guid id,
            List<string> tags, bool isFirstGenerated, GameElement animatedObject,
            FlexibleFloat scaleX, FlexibleFloat scaleY, FlexibleFloat scaleZ)
        {
            Scale scale = Instantiate(GameManager.Instance.basePrefabs.emptyObject).AddComponent<Scale>();

            scale.Initialize(elementName, id, tags, isFirstGenerated, animatedObject);

            scale.animatedObject = animatedObject;

            scale.scaleX = scaleX;
            scale.scaleY = scaleY;
            scale.scaleZ = scaleZ;
            scale.animationReturnType = FlexibleReturnType.Before;

            scale.targetTransformSubmodule = (animatedObject as IHaveTransformSubmodule).transformSubmodule;
            //scale.timeDurationSubmodule.SetDuration(scaleX, scaleY, scaleZ);

            return scale;
        }

        public override void SetDefaultSubmodules()
        {
            timeDurationSubmodule = new TimeDurationSubmodule(this);
        }
        #endregion

        #region [核心动画逻辑] Core Animation Logic

        protected override void UpdateAnimation(float songTime, bool forceUpdate)
        {
            scaleX.UpdateFlexibleFloat(songTime);
            scaleY.UpdateFlexibleFloat(songTime);
            scaleZ.UpdateFlexibleFloat(songTime);

            if (forceUpdate || scaleX.returnType is FlexibleReturnType.MiddleExecuting ||
                scaleY.returnType is FlexibleReturnType.MiddleExecuting ||
                scaleZ.returnType is FlexibleReturnType.MiddleExecuting)
            {
                if(!forceUpdate) animationReturnType = FlexibleReturnType.MiddleExecuting;
                Vector3 currentScale = new Vector3(scaleX.value, scaleY.value, scaleZ.value);
                targetTransformSubmodule.scaleOffset += currentScale;
                targetTransformSubmodule.scaleDirtyMark = true;
            }
            else if (scaleX.isSwitchingReturnType || scaleY.isSwitchingReturnType || scaleZ.isSwitchingReturnType)
            {
                //animationReturnType = FlexibleReturnType.MiddleExecuting;
                //Vector3 currentScale = new Vector3(scaleX.value, scaleY.value, scaleZ.value);
                //targetTransformSubmodule.scaleOffset += currentScale;
                //targetTransformSubmodule.scaleDirtyMark = true;
            }
            else
            {
                animationReturnType = FlexibleReturnType.MiddleInterval;
            }
        }

        public override void ApplyTimeOffset(float offset)
        {
            base.ApplyTimeOffset(offset);
            scaleX.animations.ForEach(anim => anim.ApplyTimeOffset(offset));
            scaleY.animations.ForEach(anim => anim.ApplyTimeOffset(offset));
            scaleZ.animations.ForEach(anim => anim.ApplyTimeOffset(offset));
        }
        #endregion
    }

}