using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

namespace VketCloudGUITools.Runtime
{
    [RequireComponent(typeof(RectTransform))]
    [RequireComponent(typeof(VCGUIContent))]
    public class VCTransform : MonoBehaviour
    {
        [SerializeField] public AnchorType Anchor = AnchorType.CM;
        [SerializeField] public Vector2Int Pos;
        [SerializeField] public Vector2Int Size = new Vector2Int(100, 100);
        [SerializeField] public Vector2 Pivot = new Vector2(0.5f, 0.5f);
        [SerializeField] public int Z = 0;

        public Vector3Int Pos3D
        {
            get => new Vector3Int(Pos.x, Pos.y, 0);
            set
            {
                var v = value;
                Pos = new Vector2Int(v.x, v.y);
            }
        }

        /// <summary>
        /// VCGUITransformの設定をRectTransformに反映
        /// </summary>
        public void ApplyTransform()
        {
            var rectTransform = this.GetComponent<RectTransform>();
            if (rectTransform == null)
                return;

            rectTransform.anchoredPosition = new Vector2(this.Pos.x, 0 - this.Pos.y);
            rectTransform.localPosition = new Vector3(rectTransform.localPosition.x, rectTransform.localPosition.y, 0f);
            rectTransform.sizeDelta = this.Size;
            rectTransform.pivot = new Vector2(this.Pivot.x, 1f - this.Pivot.y);
            rectTransform.anchorMin = rectTransform.anchorMax = this.Anchor.ToVector2();
            this.Pos = new Vector2Int((int)rectTransform.anchoredPosition.x, 0 - (int)rectTransform.anchoredPosition.y);
        }

        /// <summary>
        /// RectTransformの設定をVCGUITransformに反映
        /// </summary>
		public void GatherTransform()
        {
            var rectTransform = GetComponent<RectTransform>();
            Pos = new Vector2Int((int)rectTransform.anchoredPosition.x, 0 - (int)rectTransform.anchoredPosition.y);
            Size = new Vector2Int((int)rectTransform.sizeDelta.x, (int)rectTransform.sizeDelta.y);
            Pivot = new Vector2(rectTransform.pivot.x, 1f - rectTransform.pivot.y);

            if (rectTransform.anchorMin != rectTransform.anchorMax)
                Anchor = AnchorType.LT;
            else
                Anchor = rectTransform.anchorMin.ToAnchorType();

        }
    }
}