using Face.Domain.ViewModels;
using Face.Services.Manager;
using Face.Web.Areas.App.Controllers;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Security;
using System.Security.Cryptography.X509Certificates;
using System.Threading.Tasks;
using System.Web;
using ImageMagick;
using System.Web.Hosting;
using static WebSocketToolsConsole.Entity;

namespace Face.Web.Areas.App.Models
{
    /// <summary>
    /// 图片处理类
    /// </summary>
    public  class practical
    {


        /// <summary>
        /// 网络图片保存到项目目录
        /// </summary>
        /// <param name="url"></param>
        /// <param name="dtnow"></param>
        public string Down(string url, string dtnow)
        {
            try
            {
                WebRequest wreq = WebRequest.Create(url);
                HttpWebResponse wresp = (HttpWebResponse)wreq.GetResponse();
                Stream s = wresp.GetResponseStream();
                System.Drawing.Image img;
                img = System.Drawing.Image.FromStream(s);
                string TimePath = HostingEnvironment.MapPath("~/Upload/Image/");//保存路径
                string TimePathMake = HostingEnvironment.MapPath("~/Upload/Img/");//小图
                img.Save(TimePath + dtnow + "_1" + ".jpg", ImageFormat.Jpeg);
                Task<string> res = MakeThumbnail(img, TimePathMake, 500, 500, "", dtnow);
                //System.IO.File.Delete(TimePath + "1" + name + ".jpg");
                res.Start();
                //MemoryStream ms = new MemoryStream();
                img.Dispose();
                string ftpURL = "auth.blv-oa.com:50/uts_Manager/oyl_FTP/Image";
                //string ftpURLTwo = "auth.blv-oa.com:50/uts_Manager/oyl_FTP/Img";
                //FtpUploadShow(TimePathMake + dtnow + ".jpg", ftpURLTwo);
                return FtpUploadShow(res.Result, ftpURL);
            }
            catch (Exception ex)
            {
                LogHelp.WriteExceptionLog(ex, "图片");
                return "图片路径错误";
            }
        }
        public Task<string> MakeThumbnail(Image originalImage, string thumbnailPath, int width, int height, string mode, string name)
        {
            ReturnResult result = new ReturnResult();


            int towidth = width;
            int toheight = height;
            int x = 0;
            int y = 0;
            int ow = originalImage.Width;
            int oh = originalImage.Height;
            if (mode == "")
            {
                if (ow > oh)
                {
                    mode = "W";
                }
                else
                {
                    mode = "H";
                }
            }
            switch (mode)
            {
                case "HW"://指定高宽缩放（可能变形）
                    break;
                case "W"://指定宽，高按比例
                    toheight = originalImage.Height * width / originalImage.Width;
                    break;
                case "H"://指定高，宽按比例
                    towidth = originalImage.Width * height / originalImage.Height;
                    break;
                case "Cut"://指定高宽裁减（不变形）
                    if ((double)originalImage.Width / (double)originalImage.Height > (double)towidth / (double)toheight)
                    {
                        oh = originalImage.Height;
                        ow = originalImage.Height * towidth / toheight;
                        y = 0;
                        x = (originalImage.Width - ow) / 2;
                    }
                    else
                    {
                        ow = originalImage.Width;
                        oh = originalImage.Width * height / towidth;
                        x = 0;
                        y = (originalImage.Height - oh) / 2;
                    }
                    break;
                default:
                    break;
            }
            //新建一个bmp图片
            Image bitmap = new System.Drawing.Bitmap(towidth, toheight);
            //新建一个画板
            Graphics g = System.Drawing.Graphics.FromImage(bitmap);
            //设置高质量插值法
            g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;
            //设置高质量,低速度呈现平滑程度
            g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
            //清空画布并以透明背景色填充
            g.Clear(Color.Transparent);
            //在指定位置并且按指定大小绘制原图片的指定部分
            g.DrawImage(originalImage, new Rectangle(0, 0, towidth, toheight),
            new Rectangle(x, y, ow, oh),
            GraphicsUnit.Pixel);
            try
            {

                if (!Directory.Exists(thumbnailPath))
                {
                    Directory.CreateDirectory(thumbnailPath);
                }
                //以jpg格式保存缩略图
                bitmap.Save(thumbnailPath + "2" + name + ".jpg");
                ImgServerController.CompressImage(thumbnailPath + "2" + name + ".jpg", thumbnailPath + name + ".jpg");
                //System.IO.File.Delete(thumbnailPath + "2" + name + ".jpg");
                return new Task<string>(() => thumbnailPath + name + ".jpg");
                //return thumbnailPath + info.Name;
            }
            catch (System.Exception e)
            {
                LogHelp.WriteExceptionLog(e, this.GetType().Name);
                return null;
            }
            finally
            {
                originalImage.Dispose();
                bitmap.Dispose();
                g.Dispose();
            }

        }

        public string FtpUploadShow(string filename, string ftpServerIP)
        {
            //filename += ".jpg";
            string ftpUserID = "uts_manager";//ftp账号
            string ftpPassword = "uts_Inhaos@all";//ftp密码
            FileInfo fileInf = new FileInfo(filename);
            FtpWebRequest reqFTP;
            ServicePointManager.ServerCertificateValidationCallback =
               new RemoteCertificateValidationCallback(ValidateServerCertificate);
            try
            {
                // 根据uri创建FtpWebRequest对象
                reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri("ftp://" + ftpServerIP + "/" + fileInf.Name));
                string s = fileInf.Name;
                // ftp用户名和密码
                reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
                // 默认为true，连接不会被关闭
                // 在一个命令之后被执行
                reqFTP.KeepAlive = true;
                //如果要连接的 FTP 服务器要求凭据并支持安全套接字层 (SSL)，则应将 EnableSsl 设置为 true。如果不写会报出421错误（服务不可用）
                reqFTP.EnableSsl = false;
                // 指定执行什么命令
                reqFTP.Method = WebRequestMethods.Ftp.UploadFile;
                // 指定数据传输类型
                reqFTP.UseBinary = true;
                // 上传文件时通知服务器文件的大小
                reqFTP.ContentLength = fileInf.Length;
                // 缓冲大小设置为 10kb
                int buffLength = 10480;
                byte[] buff = new byte[buffLength];
                int contentLen;
                // 打开一个文件流 (System.IO.FileStream) 去读上传的文件
                FileStream fs = fileInf.OpenRead();
                try
                {
                    // 把上传的文件写入流
                    Stream strm = reqFTP.GetRequestStream();
                    // 每次读文件流的buffLength  kb
                    contentLen = fs.Read(buff, 0, buffLength);
                    // 流内容没有结束
                    while (contentLen != 0)
                    {
                        // 把内容从file stream 写入 upload stream
                        strm.Write(buff, 0, contentLen);
                        contentLen = fs.Read(buff, 0, buffLength);
                    }
                    // 关闭两个流
                    strm.Close();
                    fs.Close();
                    return fileInf.Name;
                }
                catch (Exception ex)
                {
                     LogHelp.WriteExceptionLog(ex,"图片ftp错误"+ex.Message);
                }
            }
            catch (Exception e)
            {
                LogHelp.WriteExceptionLog(e, "图片ftp错误" + e.Message);
            }
            return null;
        }
        public static bool ValidateServerCertificate
         (object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors)
        {
            return true;
        }


       
        
    }
}