using System.Collections;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using SkiaSharp;
using UnityEngine;

namespace BITKit.UX
{
	public class SKPaintComponent : MonoBehaviour
	{
		[SerializeField] private Texture2D texture;
		[SerializeField] private float[] data;

		[BIT]
		private void Draw()
		{
			var info = new SKImageInfo(
				width: 384,
				height: 128,
				colorType: SKColorType.Rgba8888,
				alphaType: SKAlphaType.Premul
			);

			using var surface = SKSurface.Create(info);


			using var canvas = surface.Canvas;

			//canvas.Clear(new Color32(31,31,31,255).ToSKColor());

			using var linePaint = new SKPaint();
			linePaint.Color = new SKColor(255, 0, 0, 255);
			linePaint.StrokeWidth = 8;
			linePaint.IsAntialias = true;
			linePaint.Style = SKPaintStyle.Stroke;

			using var helpLinePaint = new SKPaint();
			helpLinePaint.Color = new SKColor(200, 200, 200, 200);
			helpLinePaint.StrokeWidth = 4;
			helpLinePaint.Style = SKPaintStyle.Stroke;

			using var textPaint = new SKPaint();
			textPaint.TextAlign = SKTextAlign.Center;
			textPaint.TextSize = 14;
			textPaint.ColorF = new SKColor(0, 255, 0, 255);
			
			using var filePaint = new SKPaint();
			filePaint.Color = new SKColor(200, 200, 200, 200);
			filePaint.Style=SKPaintStyle.Fill;

			var min = data.Min();
			var max = data.Max();

			DoubleBuffer<SKPoint> buffer = new();
			
			var path = new SKPath { FillType = SKPathFillType.EvenOdd };
			
			path.MoveTo(0,0);
			path.LineTo(0,0);
			
			for (var i = 0; i < data.Length; i++)
			{
				var value = data[i];
				var posX = (float)info.Width / (data.Length - 1) * (i);
				var d = max - min;
				var p = (value - min) / d;
				var poxY = info.Height * p;

				var currentPoint = new SKPoint(posX, poxY);
				if (buffer.TryGetRelease(out var previousPoint))
				{
					canvas.DrawLine(previousPoint, currentPoint, linePaint);
				}

				canvas.DrawText(
					value.ToString()
					, currentPoint
					, new SKFont(
						SKTypeface.FromFile(@"D:\Iris\Documents\GitHub\iFactory-YL106.Unity\Assets\BITKit\Unity\Art\Fonts\TTF\Roboto\Roboto-Regular.ttf")
						), textPaint);
				canvas.DrawLine(posX, 0, posX, poxY, helpLinePaint);
				
				path.LineTo(posX,poxY);
				
				buffer.Release(currentPoint);
			}
			
			path.LineTo(info.Width,0);
			path.Close();
			
			
			//canvas.DrawPath(path,filePaint);

			texture = info.ToTexture2D(surface);
		}
	}
}