using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using QRCoder;
using System.IO;

namespace QRCodeService.Controllers
{
    [Route("api/[controller]")]
    [ApiController]
    public class ImageController : ControllerBase
    {
        [Route("{shortCode}")]
        [HttpGet]
        public IActionResult Get(string shortCode)
        {
            var qrCodeGenerator = new QRCodeGenerator();
            var data = qrCodeGenerator.CreateQrCode("www.baidu.com", QRCodeGenerator.ECCLevel.Q);
            var qrCode = new QRCode(data);
            using (var stream = new MemoryStream())
            {
                qrCode.GetGraphic(20).Save(stream, System.Drawing.Imaging.ImageFormat.Png);
                return File(stream.ToArray(), "image/png", "qrcode.png");
            }
        }
    }
}