using Church.Net.Utility;
using Microsoft.AspNetCore.Mvc;
using QRCoder;
using SixLabors.Fonts;
using SixLabors.ImageSharp;
using SixLabors.ImageSharp.Drawing.Processing;
using SixLabors.ImageSharp.Processing;
using System.IO;
using System.Threading.Tasks;

// For more information on enabling Web API for empty projects, visit https://go.microsoft.com/fwlink/?LinkID=397860

namespace Church.Net.WebAPI.Controllers
{
    [Route("api/[controller]")]
    [ApiController]
    public class QRCodeController : ControllerBase
    {
        // GET api/<QRCodeController>/5
        [HttpGet]
        public async Task<IActionResult> Get(string content,int size)
        {

            QRCodeGenerator gen = new QRCodeGenerator();
            QRCodeGenerator qrGenerator = new QRCodeGenerator();
            QRCodeData qrCodeData = qrGenerator.CreateQrCode(content, QRCodeGenerator.ECCLevel.Q);
            QRCode qrCode = new QRCode(qrCodeData);
            var qrCodeImage = qrCode.GetGraphic(size);
            //string qrCodeImagePath = "/App_Data/ScaneMeQrCode.png";
            //var backgroundBitmap = SixLabors.ImageSharp.Image.Load(qrCodeImagePath);
            //string qrCodeImagePath = Environment.GetEnvironmentVariable("AppData");
            //HttpContext.Current.Server.MapPath("~/App_Data/");
            //var fullPath = System.Web.Hosting.HostingEnvironment.MapPath(@"~/App_Data/ScaneMeQrCode.png");
            //System.Web.Hosting.HostingEnvironment.MapPath(@"~/App_Data/yourXmlFile.xml");

            //int positionLeft = 0;
            //int positionTop = 0;
            //var best = logic.GetById(id);
            //if (best != null)
            //{
            //    using (var memoryStream = new MemoryStream())
            //    {
            //        //fileStream.CopyTo(memoryStream);
            //        var image = Superimpose(best.Name, backgroundBitmap, qrCodeImage, 10, 32);
            //        image.Scalling(75);
            //        image.SaveAsPng(memoryStream);
            //        byte[] byteImage = memoryStream.ToArray();
            //        return File(byteImage, "image/png");
            //    }
            //}
            using (var memoryStream = new MemoryStream())
            {
                qrCodeImage.SaveAsJpeg(memoryStream);
                return File(memoryStream.ToArray(), "image/jpeg");
            }

        }


        private Font arialFont;
        [NonAction]
        public Image Superimpose(string bestName, Image largeBmp, Image smallBmp, int? x = null, int? y = null)
        {
            FontCollection collection = new();
            FontFamily family = collection.Add("/App_Data/arial.ttf");
            arialFont = family.CreateFont(12, FontStyle.Italic);
            //Graphics g = Graphics.FromImage(largeBmp);
            //g.CompositingMode = CompositingMode.SourceOver;
            //smallBmp.MakeTransparent();
            int margin = 5;
            if (!x.HasValue)
            {
                x = largeBmp.Width - smallBmp.Width - margin;
            }
            if (!y.HasValue)
            {
                y = largeBmp.Height - smallBmp.Height - margin;
            }
            var scale = 0.8;
            var scaleWidth = (int)(smallBmp.Width * scale);
            var scaleHeight = (int)(smallBmp.Height * scale);


            largeBmp.Mutate(x => x.DrawText(bestName, arialFont, Color.Black, new PointF(10, 10)));

            smallBmp.Scalling(80);

            largeBmp.Mutate(ctx => ctx.DrawImage(smallBmp, new Point(x.Value, y.Value), 1f));
            return largeBmp;
        }

    }
}