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

namespace BITKit.UX
{
    public class CellContainer : VisualElement
    {
        public new class UxmlFactory : UxmlFactory<CellContainer, UxmlTraits> { }

        public int CellSize { get; set; } = 64;
        public CellContainer()
        {
            
            RegisterCallback<CustomStyleResolvedEvent>(x =>
            {
                MarkDirtyRepaint();
            });
            generateVisualContent += GenerateVisualContent;
        }

        private void GenerateVisualContent(MeshGenerationContext obj)
        {
            if(contentRect.height<=0 || contentRect.width<=0)return;

            var painter = obj.painter2D;

            painter.lineWidth = resolvedStyle.borderTopWidth;
            painter.strokeColor = resolvedStyle.borderTopColor;

            var yCount = contentRect.height / CellSize;
            var xCount = contentRect.width / CellSize;
            
            for (var x = 1; x < xCount; x++)
            {
                painter.BeginPath();
                painter.MoveTo(new Vector2(x * CellSize, 0));
                painter.LineTo(new Vector2(x * CellSize, contentRect.height));
                painter.Stroke();
            }
            for (var y = 1; y < yCount; y++)
            {
                painter.BeginPath();
                painter.MoveTo(new Vector2(0, y * CellSize));
                painter.LineTo(new Vector2(contentRect.width, y * CellSize));
                painter.Stroke();
            }
        }
    }

}