using Saraff.Twain;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using WIA;

namespace HXX.Scanner.Biz
{
    /// <summary>
    /// 扫描仪，根据老类修改而来，很多方法没用
    /// </summary>
    public class Device_Scanner
    {
        public Device_Scanner(DeviceInfo deviceInfo)
        {
            this._deviceInfo = deviceInfo;
            this.manufacturer = (string)deviceInfo.Properties["Manufacturer"].get_Value();
        }

        public Device_Scanner(string deviceName)
        {
            this.isTwain = true;
            this.deviceName = deviceName;

            if (deviceName.ToLower().Contains("canon"))
            {
                this.manufacturer = "CANON";
            }
            else if (deviceName.ToLower().Contains("panasonic"))
            {
                this.manufacturer = "Panasonic";
            }
            else if (deviceName.ToLower().Contains("kodak"))
            {
                this.manufacturer = "Kodak";
            }
            else if (deviceName.ToLower().Contains("epson"))
            {
                this.manufacturer = "Epson";
            }
            else if (deviceName.ToLower().Contains("hp"))
            {
                this.manufacturer = "HP";
            }
            else if (deviceName.ToLower().Contains("huago"))
            {
                this.manufacturer = "HUAGO";
            }
            else
            {
                this.manufacturer = "";
            }
        }

        /// <summary>
        /// 是否被激活
        /// </summary>
        public int isActive = 0;
        /// <summary>
        /// 是否支持tw，废弃
        /// </summary>
        public Boolean isTwain = false;
        /// <summary>
        /// 名称
        /// </summary>
        public string deviceName;
        /// <summary>
        /// 制造商
        /// </summary>
        public string manufacturer;
        /// <summary>
        /// 分辨率
        /// </summary>
        public int resolution = 200;
        /// <summary>
        /// 亮度
        /// </summary>
        public int ld = 0;
        /// <summary>
        /// 对比度
        /// </summary>
        public int dbd = 0;
        /// <summary>
        /// 纸张规格
        /// </summary>
        public PaperSize zz = PaperSize.A3;
        /// <summary>
        /// wia使用，废弃
        /// </summary>
        public readonly DeviceInfo _deviceInfo;
        /// <summary>
        /// 废弃
        /// </summary>
        public int width_pixel = (int)Math.Ceiling(200 * 297 / 25.4);    //默认A3
        /// <summary>
        /// 废弃
        /// </summary>
        public int height_pixel = (int)Math.Ceiling(200 * 420 / 25.4);
        /// <summary>
        /// 废弃
        /// </summary>
        public int colorMode = 65536 * 2;
        /// <summary>
        /// 废弃
        /// </summary>
        //这个参数暂时没用，WIA.WiaImageIntent.GrayscaleIntent.GetHashCode();//1;                                       //
        public Boolean duplex = true;
        /// <summary>
        /// 下标
        /// </summary>
        public int dsIndex { get; set; }
        /// <summary>
        /// 废弃
        /// </summary>
        public Twain32.Enumeration Brightness;
        /// <summary>
        /// 废弃
        /// </summary>
        public int BrightnessBaseIndex = 0;
        /// <summary>
        /// 废弃
        /// </summary>
        public Twain32.Enumeration Contrasts;
        /// <summary>
        /// 废弃
        /// </summary>
        public int ContrastsBaseIndex = 0;
        /// <summary>
        /// 废弃
        /// </summary>
        public bool openSourceReady = false;
        /// <summary>
        /// 废弃
        /// </summary>
        public bool isChoose = false;

        /// <summary>
        /// 设置纸张，会顺便设置宽高
        /// </summary>
        /// <param name="zz"></param>
        public void setPaperSize(PaperSize zz)
        {
            this.zz = zz;
            int wMM = 210;
            int hMM = 297;
            if (this.zz == PaperSize.A4) { wMM = 210; hMM = 297; }
            else if (this.zz == PaperSize.A3) { wMM = 297; hMM = 420; }
            else if (this.zz == PaperSize.K16) { wMM = 195; hMM = 270; }
            else if (this.zz == PaperSize.K8) { wMM = 270; hMM = 390; }

            this.width_pixel = (int)Math.Ceiling(this.resolution * wMM / 25.4);
            this.height_pixel = (int)Math.Ceiling(this.resolution * hMM / 25.4);
        }

        /// <summary>
        /// 压缩，约65倍
        /// </summary>
        /// <param name="src"></param>
        /// <param name="dst"></param>
        /// <param name="delSrc"></param>
        public static void zipImage(string src, string dst, bool delSrc)
        {
            EncoderParameters eps = new EncoderParameters(1);
            //黑白压缩
            //eps.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Compression, (long)EncoderValue.CompressionCCITT4);
            //灰度压缩
            eps.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Compression, (long)EncoderValue.CompressionLZW);

            Bitmap bi = new Bitmap(src);
            ImageCodecInfo ici = GetEncoderInfo("image/tiff");
            bi.Save(dst, ici, eps);
            bi.Dispose();
            bi = null;

            if (delSrc)
            {
                File.Delete(src);
            }
        }

        /// <summary>
        /// 压缩，约65倍
        /// </summary>
        /// <param name="src"></param>
        /// <param name="dst"></param>
        /// <param name="delSrc"></param>
        public static void zipImage_jpeg(string src, string dst, bool delSrc)
        {
            EncoderParameters eps = new EncoderParameters(1);
            //黑白压缩
            //eps.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Compression, (long)EncoderValue.CompressionCCITT4);
            //灰度压缩
            eps.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Compression, (long)EncoderValue.CompressionLZW);

            Bitmap bi = new Bitmap(src);
            ImageCodecInfo ici = GetEncoderInfo("image/jpeg");
            bi.Save(dst, ici, eps);
            bi.Dispose();
            bi = null;

            if (delSrc)
            {
                File.Delete(src);
            }
        }

        public ImageFile ScanTIFFTest(string dir, string test)
        {
            var device = this._deviceInfo.Connect();

            //device.Propertiesf
            SetWIAProperty(device.Properties, WiaPropertyConstant.DocumentHandlingSelect, 5);
            SetWIAProperty(device.Properties, WiaPropertyConstant.Pages, 1);
            //if (duplex)
            //{
            //    device.Properties["Document Handling Select"].set_Value(37);
            //    //device.Properties["Pages"].set_Value(1);
            //}
            //else
            //{
            //    device.Properties["Document Handling Select"].set_Value(1); //默认
            //    //device.Properties["Pages"].set_Value(1);                    //默认
            //}
            CommonDialogClass dlg = new CommonDialogClass();
            //新扫描界面
            //dlg.ShowAcquisitionWizard(device);
            //你想扫描什么界面
            //ImageFile imageF = dlg.ShowAcquireImage(WiaDeviceType.ScannerDeviceType, WiaImageIntent.UnspecifiedIntent, WiaImageBias.MaximizeQuality, WIA.FormatID.wiaFormatTIFF, false, true) as ImageFile;
            //显示设备选择界面
            //var deviceTemp = dlg.ShowSelectDevice(WiaDeviceType.ScannerDeviceType, false, true);
            //你想扫描什么界面
            //Items items = dlg.ShowSelectItems(device, WiaImageIntent.UnspecifiedIntent, WiaImageBias.MaximizeQuality, true, true, true);
            //显示设备属性
            //dlg.ShowDeviceProperties(device, true);


            //var item = device.Items[1];//index是从1开始的，而不是从0
            //显示扫描属性：亮度、对比度、DPI、颜色模式
            //dlg.ShowItemProperties(item, true);
            //显示完成百分比
            //var trans = dlg.ShowTransfer(item, WIA.FormatID.wiaFormatTIFF, true);

            //Items items = dlg.ShowSelectItems(device, WiaImageIntent.UnspecifiedIntent, WiaImageBias.MaximizeQuality, false, true, false);
            //MessageBox.Show(items.Count.ToString());
            //foreach (Item it in items)
            //{
            //    AdjustScannerSettings(it, resolution, 0, 0, width_pixel, height_pixel, ld, dbd, colorMode);
            //    CommonDialogClass dlgTemp = new CommonDialogClass();
            //    ImageFile imageFile = dlgTemp.ShowTransfer(
            //            it,
            //            WIA.FormatID.wiaFormatTIFF,
            //            true)
            //            as ImageFile;
            //    if (imageFile != null)
            //    {
            //        string tmpFile = dir + "\\_tmp" + DateTime.Now.ToString("MMddHHmmssfff") + ".tif";
            //        string testFileName2 = dir + "\\测试" + DateTime.Now.ToString("MMddHHmmssfff") + "_A.tif";
            //        imageFile.SaveFile(tmpFile);

            //        zipImage(tmpFile, testFileName2, true);
            //    }
            //}
            var item = device.Items[1];//index是从1开始的，而不是从0
            try
            {
                AdjustScannerSettings(item, resolution, 0, 0, width_pixel, height_pixel, ld, dbd, colorMode);
                if (true)
                {
                    //第一面
                    var imageFile = dlg.ShowTransfer(item, WIA.FormatID.wiaFormatTIFF, true) as ImageFile;
                   
                    if (imageFile != null)
                    {
                        string tmpFile = dir + "\\_tmp" + DateTime.Now.ToString("MMddHHmmssfff") + ".tif";
                        string testFileName2 = dir + "\\测试" + DateTime.Now.ToString("MMddHHmmssfff") + "_A.tif";
                        imageFile.SaveFile(tmpFile);

                        zipImage(tmpFile, testFileName2, false);
                    }
                }

                if (duplex)
                {
                    //第二面
                    ImageFile imageFile2 = dlg.ShowTransfer(item, WIA.FormatID.wiaFormatTIFF, true) as ImageFile;
                    if (imageFile2 != null)
                    {
                        string tmpFile = dir + "\\_tmp" + DateTime.Now.ToString("MMddHHmmssfff") + ".tif";
                        string testFileName2 = dir + "\\测试" + DateTime.Now.ToString("MMddHHmmssfff") + "_B.tif";
                        imageFile2.SaveFile(tmpFile);

                        zipImage(tmpFile, testFileName2, false);
                    }
                }
                //打开扫描文件夹
                System.Diagnostics.Process.Start("explorer.exe", dir);
                return null;//return imageFile;
            }
            catch (COMException e)
            {
                Console.WriteLine(e.ToString());
                Console.WriteLine(e.ErrorCode);
                Console.WriteLine(e.Message);
                uint errorCode = (uint)e.ErrorCode;
                if (errorCode == 0x80210006)
                {
                    MessageBox.Show("扫描仪状态错误");
                }
                else if (errorCode == 0x80210064)
                {
                    MessageBox.Show("取消扫描");
                }
                else if (errorCode == 0x80210003)
                {
                    MessageBox.Show("请放入要扫描的纸张");
                }
                else
                {
                    //MessageBox.Show("未知错误", "Error", MessageBoxButtons.OK);
                    throw e;
                }
            }
            return new ImageFile();
        }
        private static ImageCodecInfo GetEncoderInfo(string mimeType)
        {
            ImageCodecInfo[] encoders = ImageCodecInfo.GetImageEncoders();
            for (int j = 0; j < encoders.Length; j++)
            {
                if (encoders[j].MimeType == mimeType)
                    return encoders[j];
            }

            throw new Exception(mimeType + " mime type not found in ImageCodecInfo");
        }
        private static void showPropValues(IProperties ps)
        {
            foreach (Property p in ps)
            {
                Console.WriteLine(p.Type.ToString() + ">" + p.SubType.ToString() + ">"
                    + p.PropertyID + " > " + p.Name + " > " + p.get_Value());
            }
        }

        private static void AdjustScannerSettings(IItem scannnerItem, int scanResolutionDPI, int scanStartLeftPixel,
            int scanStartTopPixel, int scanWidthPixels, int scanHeightPixels,
            int brightnessPercents, int contrastPercents, int colorMode)
        {
            IProperties ps = scannnerItem.Properties;

            //showPropValues(ps);
            SetWIAProperty(ps, WiaPropertyConstant.HorizontalResolution, scanResolutionDPI);
            SetWIAProperty(ps, WiaPropertyConstant.VerticalResolution, scanResolutionDPI);
            //(最大-页宽)/2
            object propNameStr = "" + WiaPropertyConstant.HorizontalExtent;
            Property hExt = ps.get_Item(ref propNameStr);
            scanStartLeftPixel = (int)Decimal.Round(((int)hExt.get_Value() - scanWidthPixels) / 2);
            SetWIAProperty(ps, WiaPropertyConstant.HorizontalStartPostion, scanStartLeftPixel);
            SetWIAProperty(ps, WiaPropertyConstant.VerticalStartPosition, scanStartTopPixel);
            SetWIAProperty(ps, WiaPropertyConstant.HorizontalExtent, scanWidthPixels);
            SetWIAProperty(ps, WiaPropertyConstant.VerticalExtent, scanHeightPixels);
            SetWIAProperty(ps, WiaPropertyConstant.Brightness, brightnessPercents);
            SetWIAProperty(ps, WiaPropertyConstant.Contrast, contrastPercents);
            SetWIAProperty(ps, WiaPropertyConstant.BitsPerPixel, 1);            //默认24,8,1
            //SetWIAProperty(ps, WiaPropertyConstant.DocumentHandlingSelect, 5);
            //SetWIAProperty(ps, WiaPropertyConstant.Pages, 2);
            SetWIAProperty(ps, WiaPropertyConstant.CurrentIntent, colorMode);
            //showPropValues(ps);
        }

        private static void SetWIAProperty(IProperties properties, int propName, object propValue)
        {
            try
            {
                object propNameStr = "" + propName;
                Property prop = properties.get_Item(ref propNameStr);
                if (prop != null)
                {
                    //Console.WriteLine(prop.get_Value().ToString());
                    prop.set_Value(ref propValue);
                }
                else
                {
                    Console.WriteLine("prop null" + propNameStr);
                }
            }
            catch (Exception e)
            {
                Console.WriteLine(propName + " > " + e);
            }
        }

        public override string ToString()
        {
            if (deviceName != null && deviceName.Length > 0)
            {
                return deviceName;
            }
            if (this._deviceInfo != null)
            {
                return (string)this._deviceInfo.Properties["Name"].get_Value();
            }
            return "Null";
        }
    }
}