using AIK.Common.Interface;
using QRCoder;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using System.Windows;

namespace AIK.Views.UIServices
{
    public class QRCodeService : IQRCodeService
    {
        public byte[] GenerateQRCodeWithLogo(string text, string logoPath, int pixelsPerModule = 10)
        {
            using var qrGenerator = new QRCodeGenerator();
            var qrCodeData = qrGenerator.CreateQrCode(text, QRCodeGenerator.ECCLevel.H);
            using var qrCode = new QRCode(qrCodeData);

            using var logo = LoadLogo(logoPath);
            using var bitmap = qrCode.GetGraphic(
                pixelsPerModule: pixelsPerModule,
                darkColor: Color.Black,
                lightColor: Color.White,
                drawQuietZones: true,
                icon: logo,
                iconSizePercent: 15
            );

            // 👇 关键：返回 PNG 字节数组
            using var memory = new MemoryStream();
            bitmap.Save(memory, System.Drawing.Imaging.ImageFormat.Png);
            return memory.ToArray();
        }

        private static Bitmap LoadLogo(string logoPath)
        {
            if (logoPath.StartsWith("AIK.Assets.Images."))
            {
                var assetsAssembly = Assembly.Load("AIK.Assets");
                using var stream = assetsAssembly.GetManifestResourceStream(logoPath);
                return new Bitmap(stream);
            }
            else
            {
                return new Bitmap(logoPath);
            }
        }
    }
}