using System;
//using System.IO;
using System.Linq;

namespace StoicGoose.Common.Drawing
{
	/* RGBA bitmap file format -- https://github.com/bzotto/rgba_bitmap
	 * ".rgba is the dumbest possible image interchange format, now available for your programming pleasure."
	 */

	public class RgbaFile
	{
		//const string expectedMagic = "RGBA";

		//public string MagicNumber { get; protected set; }
		//public uint Width { get; protected set; }
		//public uint Height { get; protected set; }
		//public byte[] PixelData { get; protected set; }

		//public RgbaFile(string filename) : this(new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)) { }

		//public RgbaFile(System.IO.Stream stream)
		//{
		//	MagicNumber = ReadString(stream, 4);
		//	Width = ReadUInt32(stream);
		//	Height = ReadUInt32(stream);
		//	PixelData = new byte[Width * Height * 4];
		//	stream.Read(PixelData);
		//}

		//public RgbaFile(uint width, uint height, byte[] pixelData)
		//{
		//	MagicNumber = expectedMagic;
		//	Width = width;
		//	Height = height;
		//	PixelData = pixelData;
		//}

		//public void Save(string filename) => Save(new FileStream(filename, FileMode.Create, FileAccess.Write, FileShare.ReadWrite));

		//public void Save(Stream stream)
		//{
		//	WriteString(stream, MagicNumber);
		//	WriteUInt32(stream, Width);
		//	WriteUInt32(stream, Height);
		//	stream.Write(PixelData);
		//}

		//private static string ReadString(Stream stream, int length) => new(Enumerable.Range(0, length).Select(_ => (char)stream.ReadByte()).ToArray());
		//private static uint ReadUInt32(Stream stream) => (uint)(((stream.ReadByte() & 0xFF) << 24) | ((stream.ReadByte() & 0xFF) << 16) | ((stream.ReadByte() & 0xFF) << 8) | ((stream.ReadByte() & 0xFF) << 0));

		//private static void WriteString(Stream stream, string str) => Array.ForEach(str.ToCharArray(), (x) => stream.WriteByte((byte)x));
		//private static void WriteUInt32(Stream stream, uint val) { stream.WriteByte((byte)((val >> 24) & 0xFF)); stream.WriteByte((byte)((val >> 16) & 0xFF)); stream.WriteByte((byte)((val >> 8) & 0xFF)); stream.WriteByte((byte)((val >> 0) & 0xFF)); }
	}
}