using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using UnityEngine;
using UnityEngine.Serialization;

namespace TheraBytes.BetterUi
{
#if UNITY_2018_3_OR_NEWER
    [ExecuteAlways]
#else
    [ExecuteInEditMode]
#endif
    [HelpURL("https://documentation.therabytes.de/better-ui/TransformScaler.html")]
    [AddComponentMenu("Better UI/Helpers/Transform Scaler", 30)]
    public class TransformScaler : ResolutionSizer<Vector3>
    {
        public Vector3SizeModifier ScaleSizer { get { return customScaleSizers.GetCurrentItem(scaleSizerFallback); } }

        protected override ScreenDependentSize<Vector3> sizer { get { return customScaleSizers.GetCurrentItem(scaleSizerFallback); } }

        [FormerlySerializedAs("scaleSizer")]
        [SerializeField]
        Vector3SizeModifier scaleSizerFallback = new Vector3SizeModifier(Vector3.one, Vector3.zero, 4 * Vector3.one);

        [SerializeField]
        Vector3SizeConfigCollection customScaleSizers = new Vector3SizeConfigCollection();

        DrivenRectTransformTracker rectTransformTracker = new DrivenRectTransformTracker();

        protected override void OnDisable()
        {
            base.OnDisable();
            rectTransformTracker.Clear();
        }

        protected override void ApplySize(Vector3 newSize)
        {
            rectTransformTracker.Clear();

            RectTransform rt = this.transform as RectTransform;
            if(rt != null)
            {
                rectTransformTracker.Clear();
                rectTransformTracker.Add(this, rt, DrivenTransformProperties.Scale);
            }

            this.transform.localScale = newSize;
        }
    }
}