using System;
using HDL_ON_iOS;
using Shared;
using ZXing.Mobile;
using HDL.Shared.IOS.ScanQRCode;
namespace HDL_ON
{
    public class Scan
    {

        public string TipMsg = "";
        public Scan()
        {
        }
        private static Scan ins;

        public static Scan Ins
        {
            get
            {
                if (ins == null)
                {
                    ins = new Scan();
                }
                return ins;
            }

        }

        void ScanResult(string result)
        {
            if (result != null)
            {
                action?.Invoke(result);
            }
            else
            {
                action?.Invoke(null);
                Console.WriteLine("二维码返回值为null");
            }

        }

        static MobileBarcodeScanner scanner;


        Action<string> action;

        public void OpenScan(Action<string> action)
        {
            this.action = action;

            string cancel = "取消";
            //string flashText = "";
            string titleText = "二维码扫描";
            if (Language.CurrentLanguage != "Chinese")
            {
                cancel = "Cancel";
                //flashText = "";
                titleText = "Scan";
            }
            var d1 = new HDLQRCodeScanFinish(ScanResult);
            HDL.Shared.IOS.ScanQRCode.HDLScanQRCodeSDK.SharedInstance().ScanQRCodeWith(cancel, titleText, d1);



            //if (scanner == null)
            //{
            //    var mZXingOverlayView = new ZXingOverlayView(cancel, flashText, titleText);
            //    scanner = new MobileBarcodeScanner(AppDelegate.rootViewController) { FlashButtonText = flashText, TopText = titleText, BottomText = "", CancelButtonText = cancel };
            //    scanner.UseCustomOverlay = true;

            //    scanner.CustomOverlay = mZXingOverlayView;
            //    var bOn = false;
            //    mZXingOverlayView.OnCancel += () =>
            //    {
            //        scanner?.Cancel();
            //    };

            //    mZXingOverlayView.OnTorch += () =>
            //    {
            //        bOn = !bOn;
            //        scanner?.Torch(bOn);
            //    };

            //}

            //var result = await scanner.Scan();

            //if (result != null)
            //{
            //    action?.Invoke(result.Text);
            //}
            //else
            //{
            //    action?.Invoke(null);
            //    Console.WriteLine("二维码返回值为null");
            //}



        }

        public static byte[] BytesFromText(string text, int width = 300, int height = 300)
        {
            var barcodeWriter = new ZXing.Mobile.BarcodeWriter
            {
                Format = ZXing.BarcodeFormat.QR_CODE,
                Options = new ZXing.Common.EncodingOptions
                {
                    Width = width,
                    Height = height,
                    Margin = 0
                }
            };

            barcodeWriter.Renderer = new ZXing.Mobile.BitmapRenderer();
            var uiImage = barcodeWriter.Write(text);
            var data = uiImage.AsJPEG();

            var resultBytes = new byte[data.Length];
            System.Runtime.InteropServices.Marshal.Copy(data.Bytes, resultBytes, 0, resultBytes.Length);

            return resultBytes;
        }


        //public static void OpenScan(Action<string> action)
        //{

        //    var scanner = new MobileBarcodeScanner(BaseViewController.Instance) { };
        //    // ZXing  
        //    scanner.UseCustomOverlay = false;
        //    // 底部两个按钮文字  
        //    scanner.FlashButtonText = "";//"识别";
        //    scanner.CancelButtonText = Language.CurrentLanguage == "Chinese" ? "取消" : "Cancel";

        //    // 方框上，下方文字提示  
        //    //scanner.TopText = Language.CurrentLanguage == "Chinese" ? "请将条形码对准方框内" : "Please align the bar code in the scan box";
        //    scanner.BottomText = "";

        //    // 延时三秒自动扫秒  
        //    var opt = new MobileBarcodeScanningOptions();
        //    opt.DelayBetweenContinuousScans = 3000;
        //    scanner.ScanContinuously(opt, (obj) => {
        //        scanner.Cancel();
        //        if (action != null)
        //        {
        //            action(obj.Text);
        //        }
        //    });
        //}
    }
}