using System;
using System.Collections.Generic;
using System.Drawing.Imaging;
using System.Drawing;
using System.IO;
using QRCoder;

namespace Common.Helper.Code
{
    public class CodeHelper
    {

        private static Bitmap QcCode(string text)
        {

            var qrGenerator = new QRCodeGenerator();

            var qrCodeData = qrGenerator.CreateQrCode(text, QRCodeGenerator.ECCLevel.Q);

            var qrCode = new QRCode(qrCodeData);

            return qrCode.GetGraphic(20, Color.Black, Color.White, new Bitmap(Path.Combine(Directory.GetCurrentDirectory(), "Image", "Logo.jpg")));
        }

        private static Bitmap QcCodeTitle(string text,string title)
        {
            var qrCodeImage = QcCode(text);
            var bitmap = new Bitmap(500, 450);
            var g = Graphics.FromImage(bitmap);
            var font = new Font("SimSun", 24, FontStyle.Regular);
            g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
            g.Clear(Color.White);
            g.DrawImage(qrCodeImage, 50, 0, 400, 400);
            var solidBrush = new SolidBrush(Color.Black);
            g.DrawString(title, font, solidBrush, 190, 400);
            g.Dispose();
            qrCodeImage.Dispose();
            return bitmap;
        }


        /// <summary>
        /// 获取二维码
        /// </summary>
        /// <param name="text">文本</param>
        /// <param name="title"></param>
        /// <param name="filePath">生成文件地址</param>
        public static void QcCodeForFilePath(string text, string title, string filePath)
        {

            var map = QcCodeTitle(text,title);
            map.Save(filePath + title, ImageFormat.Png);
            map.Dispose();
        }
        /// <summary>
        /// 获取带标题的二维码
        /// </summary>
        /// <param name="text"></param>
        /// <param name="title"></param>
        /// <returns></returns>

        public static string QcCodeBase64(string text,string title)
        {
            using var ms = new MemoryStream();
            var map = QcCodeTitle(text,title);
            map.Save(ms, ImageFormat.Png);
            map.Dispose();
            return Convert.ToBase64String(ms.GetBuffer());
        }

    }
}