// Copyright (c) 2012-2021 fo-dicom contributors.
// Licensed under the Microsoft Public License (MS-PL).

using Microsoft.SqlServer.Server;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Configuration;
using System.IO;
using System.Linq;
using System.Net;
using System.Security.Cryptography;
using System.Security.Policy;
using System.Text;
using System.Diagnostics;
using System.Windows.Forms;

namespace Worklist_SCP.Model
{
    public class WorklistItemsProvider : IWorklistItemsSource
    {
        public NLog.Logger Nlogger = NLog.LogManager.GetCurrentClassLogger();
        /// <summary>
        /// 从his中查询指定日期的患者信息
        /// </summary>
        /// <param name="provider"></param>
        /// <returns></returns>
        FlyHisEcgDataModel getHisPatientData(string QueryDateStr,string inHisCode)
        {
            //获取福乐云HIS接口的token
            string hisToken = getHisToken(ConfigurationManager.AppSettings["hisGetTokenUrl"], ConfigurationManager.AppSettings["hisAppkey"], ConfigurationManager.AppSettings["appsecret"]);
            FlyHisEcgDataModel FHEDM = GetHisEcgData(ConfigurationManager.AppSettings["hisGetDataUrl"], inHisCode, QueryDateStr, hisToken);
            return FHEDM;
        }


        public string GenerateId()
        {
            // 生成一个GUID字符串，例如 "d2d26bd7-a438-4575-9052-52f991c56e2b"
            string guidStr = Guid.NewGuid().ToString();
            string newGuidStr = "";
            for (int i = 0; i < guidStr.Length; i++)
            {
                string val1 = guidStr.Substring(i, 1);
                if (val1 != "-")
                {
                    try
                    {
                        int val2 = int.Parse(val1);
                        newGuidStr += val2.ToString();
                    }
                    catch
                    {
                        newGuidStr += ((new Random()).Next(1, 9));
                    }
                }
                else
                    newGuidStr += val1;
            }
            newGuidStr = newGuidStr.Replace("-", ".");
            return newGuidStr;
        }

        string submitContrastData(string patientId,string orgId)
        {
            string FlyPacsContrastUrl = ConfigurationManager.AppSettings["FlyPacsContrastUrl"];
            contrastDataModel cdm = new contrastDataModel();
            cdm.regid = patientId;
            cdm.orgid = orgId;
            string jsonStr = JsonConvert.SerializeObject(cdm);
            string returnStr=PostMoths(FlyPacsContrastUrl, jsonStr);
            return returnStr;
        }


        public static string PostMoths(string url, string param)
        {
            string strURL = url;
            HttpWebRequest request;
            request = (HttpWebRequest)WebRequest.Create(strURL);
            request.Method = "POST";
            request.ContentType = "application/json;charset=UTF-8";
            string paraUrlCoded = param;
            byte[] payload;
            payload = Encoding.UTF8.GetBytes(paraUrlCoded);
            request.ContentLength = payload.Length;
            Stream writer = request.GetRequestStream();
            writer.Write(payload, 0, payload.Length);
            writer.Close();
            System.Net.HttpWebResponse response;
            response = (System.Net.HttpWebResponse)request.GetResponse();
            System.IO.Stream s;
            s = response.GetResponseStream();
            string StrDate = "";
            string strValue = "";
            StreamReader Reader = new StreamReader(s, Encoding.UTF8);
            while ((StrDate = Reader.ReadLine()) != null)
            {
                strValue += StrDate + "\r\n";
            }
            return strValue;
        }



        /// <summary>
        /// 查询患者信息
        /// </summary>
        public List<WorklistItem> GetAllCurrentWorklistItems(string ScheduledStationAETitle1)
        {
            List<WorklistItem> WLI = new List<WorklistItem>();
            string clientAET1 = string.Empty;
            string inHisCode = string.Empty;
            string modality = string.Empty;
            //  Nlogger.Info(" | 客户端的ScheduledStationAETitle为: " + ScheduledStationAETitle1);
            logger.LogWriter(" | 客户端的ScheduledStationAETitle为: " + ScheduledStationAETitle1);
            if (ConfigurationManager.AppSettings["worklistModel"] =="0")//worklist工作模式：0为本地模式   1为远程服务器模式
            {
                clientAET1 = ConfigurationManager.AppSettings["CurrentOrgInfo"].Split(',')[0];
                ScheduledStationAETitle1 = clientAET1;
                inHisCode = ConfigurationManager.AppSettings["CurrentOrgInfo"].Split(',')[3];
                modality = ConfigurationManager.AppSettings["CurrentOrgInfo"].Split(',')[1];
            }
            if (ConfigurationManager.AppSettings["worklistModel"] == "1")//worklist工作模式：0为本地模式   1为远程服务器模式
            {
                clientAET1 = ScheduledStationAETitle1;
                inHisCode = ConfigurationManager.AppSettings[ScheduledStationAETitle1].Split(',')[3];
                modality = ConfigurationManager.AppSettings[ScheduledStationAETitle1].Split(',')[1];
            }
            FlyHisEcgDataModel FHEDM;
            if (ScheduledStationAETitle1.Trim().Length>0)
             FHEDM = getHisPatientData(DateTime.Now.ToString("yyyy-MM-dd"), inHisCode);
            else
                FHEDM=new FlyHisEcgDataModel();
           // MessageBox.Show(ScheduledStationAETitle1+"   ,    "+ FHEDM.rows[0].name);
            // File.WriteAllText("logs.txt", FHEDM.rows.Count.ToString());
            for (int i = 0; i < FHEDM.rows.Count; i++)
            {
                if (modality != FHEDM.rows[i].projects[0].category)//如果检查类型 不是 DR DX CT等影像类别 则不加载数据
                    continue;
                DateTime birthDate = DateTime.Now;
                try
                {
                    birthDate = DateTime.Parse(FHEDM.rows[i].birthdate);
                }
                catch { }
                string JianChaDescribe = string.Empty;//检查描述
                foreach (projectsInfo pji in FHEDM.rows[i].projects)
                    JianChaDescribe += (pji.jianchamingcheng + ",");
                JianChaDescribe = JianChaDescribe.Trim(',');
                var item1 = new WorklistItem
                {
                    AccessionNumber = FHEDM.rows[i].jianchaid,//检查ID
                    DateOfBirth = birthDate,//出生日期，CT会计算年龄
                                            //PatientID = FHEDM.rows[i].patientCode,// 患者编号
                    PatientID = FHEDM.rows[i].jianchaid,// 检查ID 作为 患者编号
                    Surname = FHEDM.rows[i].name,//姓  直接把姓名都放在 姓  里
                    Forename = "",//名
                    Sex = FHEDM.rows[i].sex == "男" ? "M" : "F",//性别
                    Title = null,
                    Modality = modality,//检查类型
                    ExamDescription = JianChaDescribe,//ct里的检查描述，检查部位描述
                    ExamRoom = "",//检查室
                    HospitalName = FHEDM.rows[i].yiyuanname,//医院名称
                    PerformingPhysician = null,//执行医师
                    ProcedureID = null,
                    ProcedureStepID = null,
                    //StudyUID = FHEDM.rows[i].jianchabh,//检查部位ID 用检查编号 代替 检查部位ID
                    StudyUID = GenerateId(),//检查部位ID 
                    ScheduledAET = clientAET1,//检车设备里的 calling AET 
                    ReferringPhysician = FHEDM.rows[i].resDoctorName,//转诊医生；转诊医师；咨询医生；转介医生
                    ExamDateAndTime = DateTime.Parse(FHEDM.rows[i].kaifangsj)//开方时间  这是检查日期  年月日时分秒
                };
                WLI.Add(item1);

                string returnStr = submitContrastData(FHEDM.rows[i].jianchaid, inHisCode);//将patientid 和 his的orgid提交到 pacs系统的对照关联表里
                                                                                          // Nlogger.Info(FHEDM.rows[i].yiyuanname+ " worklist 患者信息：" + FHEDM.rows[i].name+"，性别"+ FHEDM.rows[i].sex + " ，患者ID："+ FHEDM.rows[i].jianchaid);
                logger.LogWriter(FHEDM.rows[i].yiyuanname + " worklist 患者信息：" + FHEDM.rows[i].name + "，性别" + FHEDM.rows[i].sex + " ，患者ID：" + FHEDM.rows[i].jianchaid);
            }
            return WLI;
        }



        /// <summary>
        /// 获取福乐云HIS系统的token
        /// </summary>
        /// <param name="username"></param>
        /// <param name="pwd"></param>
        /// <returns></returns>
        public string getHisToken(string url1, string appkey, string appsecret)
        {
            Dictionary<string, object> dic = new Dictionary<string, object>();
            dic.Add("appkey", appkey);
            dic.Add("appsecret", appsecret);

            string resultV = PostFile3(url1, dic);
            FlyHisTokenMsgModel tm = JsonConvert.DeserializeObject<FlyHisTokenMsgModel>(resultV);
            return tm.data.access_token;
        }

        /// <summary>
        /// 获取福乐云HIS系统的患者基本信息
        /// </summary>
        /// <param name="username"></param>
        /// <param name="pwd"></param>
        /// <returns></returns>
        public FlyHisEcgDataModel GetHisEcgData(string url1, string Yiyuanid, string kaifangsj, string token)
        {
            Dictionary<string, object> dic = new Dictionary<string, object>();
            dic.Add("Yiyuanid", Yiyuanid);
            dic.Add("kaifangsj", kaifangsj);
            dic.Add("token", token);
            string resultV = PostFile3(url1, dic);
            FlyHisEcgDataModel tm = JsonConvert.DeserializeObject<FlyHisEcgDataModel>(resultV);
            return tm;
        }



        /// <summary>
        /// post form-data 参数
        /// </summary>
        /// <param name="url"></param>
        /// <param name="items"></param>
        /// <returns></returns>
        public string PostFile3(string url, Dictionary<string, object> items)
        {
            string boundary = DateTime.Now.Ticks.ToString("x");
            HttpWebRequest request = null;
            //如果是发送HTTPS请求              
            if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))
            {
                //处理HttpWebRequest访问https有安全证书的问题（ 请求被中止: 未能创建 SSL/TLS 安全通道。）
                ServicePointManager.ServerCertificateValidationCallback += (s, cert, chain, sslPolicyErrors) => true;
                ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls;
                //ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);
                request = WebRequest.Create(url) as HttpWebRequest;
                request.ProtocolVersion = HttpVersion.Version10;
            }
            else
            {
                request = WebRequest.Create(url) as HttpWebRequest;
            }
            request.ContentType = "multipart/form-data; boundary=" + boundary;
            request.Method = "POST";
            //  request.Headers.Add("Authorization", "Bearer " + token);
            // 最后的结束符  
            var endBoundary = Encoding.UTF8.GetBytes("\r\n--" + boundary + "--\r\n");

            //文件数据
            string fileFormdataTemplate =
                "--" + boundary +
                "\r\nContent-Disposition: form-data; name=\"{0}\"; filename=\"{1}\"" +
                "\r\nContent-Type: application/octet-stream" +
                "\r\n\r\n";

            //文本数据 
            string dataFormdataTemplate =
                "\r\n--" + boundary +
                "\r\nContent-Disposition: form-data; name=\"{0}\"" +
                "\r\n\r\n{1}";
            using (var postStream = new MemoryStream())
            {
                #region 写入其他表单参数
                foreach (KeyValuePair<string, object> key in items)
                {
                    var p = string.Format(dataFormdataTemplate, key.Key, key.Value);
                    var bp = Encoding.UTF8.GetBytes(p);
                    postStream.Write(bp, 0, bp.Length);
                }
                #endregion

                //写入结束边界
                postStream.Write(endBoundary, 0, endBoundary.Length);

                #region 写入流

                request.ContentLength = postStream.Length;
                postStream.Position = 0;
                using (Stream ds = request.GetRequestStream())
                {
                    byte[] buffer = new byte[1024];
                    int bytesRead = 0;
                    while ((bytesRead = postStream.Read(buffer, 0, buffer.Length)) != 0)
                    {
                        ds.Write(buffer, 0, bytesRead);
                    }
                }
                #endregion

                #region 获取返回值

                string result = string.Empty;
                using (HttpWebResponse rep = (HttpWebResponse)request.GetResponse())
                {
                    using (Stream ds = rep.GetResponseStream())
                    {
                        using (StreamReader sr = new StreamReader(ds))
                        {
                            result = sr.ReadToEnd();
                        }
                    }
                }

                return result;

                #endregion
            }
        }



    }
}