using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Configuration;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Xml;

namespace PacsView3D
{
    public partial class WadoQueryFrm : Form
    {
        int requestStudyCount = 0;
        List<study> studyList;
        string tmpPath = System.Environment.CurrentDirectory + "\\temp";
        string wado = string.Empty;
        string queryUrl = string.Empty;
        string downloadUrl = string.Empty;
        public WadoQueryFrm()
        {
            InitializeComponent();
            dataGridView1.Font = new Font("微软雅黑", 14);
            wado = ConfigurationManager.AppSettings["wado"];
            string user = ConfigurationManager.AppSettings["User"];
            string pwd = ConfigurationManager.AppSettings["Password"];
            wado = wado + "User=" + user + "&Password=" + pwd;
            queryUrl = wado + "&requestType=Query";
            downloadUrl = wado + "&requestType=WADO&contentType=application%2Fdicom&objectUID=";
        }

        private void btnQuery_Click(object sender, EventArgs e)
        {
            queryUrl = wado + "&requestType=Query";
            string whereString = "";
            dataGridView1.DataSource = null;
            if (txtPatientid.Text.Length>0)
            {
                whereString = whereString + "&patientID=" + txtPatientid.Text;
            }
            if (txtName.Text.Length > 0)
            {
                whereString = whereString + "&patientName=" + txtName.Text;
            }
            if (txtAccessNumber.Text.Length > 0)
            {
                whereString = whereString + "&accessionNumber=" + txtAccessNumber.Text;
            }
            if (txtModality.Text.Length > 0)
            {
                whereString = whereString + "&modality=" + txtModality.Text;
            }
            DateTime dt1 = this.datetimeStart.Value;
            string startData = dt1.ToString("yyyyMMdd");
            DateTime dt2 = this.datetimeEnd.Value;
            string endData = dt2.ToString("yyyyMMdd");
            whereString = whereString + "&studyDate=" + startData + "-" + endData;

            queryUrl = queryUrl + whereString;
            logtxt.AppendText(queryUrl);

            GetStudyList(queryUrl);
            try
            {
                this.dataGridView1.DataSource = studyList;
                toolStripStatusLabel1.Text = "Study:" + studyList.Count.ToString();
            }
            catch(Exception ex)
            {
                logtxt.AppendText(ex.Message.ToString());
            }

            
        }
        public void GetStudyList(string queryurl)
        {
            try
            {
                string studylistinfo = null;
                studylistinfo = HttpRequestHelper.HttpGetRequest(queryurl);
                logtxt.AppendText(studylistinfo);
                XmlDocument doc = new XmlDocument();
                if (studylistinfo != null)
                {
                    doc.LoadXml(studylistinfo);
                }
                else
                {
                    return;
                }
                //doc.Load("querystudylist.xml");//xml文件的路径
                XmlNodeList topM = doc.DocumentElement.ChildNodes;
                foreach (XmlElement element in topM)
                {
                    if (element.Name.ToLower() == "dataset")
                    {
                        var aa = element.Attributes["studyRecCount"].Value;
                        if (aa != null)
                        {
                            requestStudyCount = int.Parse(aa);
                        }
                        else
                        {
                            requestStudyCount = element.ChildNodes.Count;
                        }
                        studyList = new List<study>();

                        List<string> objectuid = new List<string>();
                        for (int i = 0; i < element.ChildNodes.Count; ++i)
                        {
                            study myStudy = new study();
                            XmlElement studysEL = element.ChildNodes[i] as XmlElement;
                            string seriesRecCount = studysEL.Attributes["seriesRecCount"].Value;
                            myStudy.seriesCount = int.Parse(seriesRecCount);

                            int studyImageCount = 0;
                            foreach (XmlElement studyEL in studysEL)
                            {
                                switch (studyEL.Name.ToLower())
                                {
                                    case "patientid":
                                        myStudy.patientID = studyEL.InnerText;
                                        break;
                                    case "patientname":
                                        myStudy.patientName = studyEL.InnerText;
                                        break;
                                    case "birthdate":
                                        myStudy.birthDate = studyEL.InnerText;
                                        break;
                                    case "sex":
                                        myStudy.sex = studyEL.InnerText;
                                        break;
                                    case "studydate":
                                        myStudy.studyDate = studyEL.InnerText;
                                        break;
                                    case "studytime":
                                        myStudy.studyTime = studyEL.InnerText;
                                        break;
                                    case "accessionnumber":
                                        myStudy.accessionNumber = studyEL.InnerText;
                                        break;
                                    case "studyuid":
                                        myStudy.studyUID = studyEL.InnerText;
                                        break;
                                    case "studydesc":
                                        myStudy.studyDesc = studyEL.InnerText;
                                        break;
                                    case "series":
                                        int seriesImageCount = int.Parse(studyEL.Attributes["imageRecCount"].Value);
                                        studyImageCount = studyImageCount + seriesImageCount;
                                        myStudy.imageCount = studyImageCount;
                                        XmlElement imagesEL = studyEL["image"];
                                        if (imagesEL != null)
                                        {
                                            foreach (XmlElement image in imagesEL)
                                            {
                                                if (image.Name.ToLower() == "objectuid")
                                                {
                                                    if (image.InnerText.Length > 0)
                                                    {
                                                        objectuid.Add(image.InnerText);
                                                    }
                                                }
                                            }
                                        }
                                        break;
                                }
                            }
                            myStudy.objectUID = objectuid;
                            studyList.Add(myStudy);
                        }
                    }
                }
            }
            catch(Exception ex)
            {
                logtxt.AppendText(ex.Message.ToString());
            }

        }

        private void WadoQueryFrm_Load(object sender, EventArgs e)
        {
            this.datetimeStart.Value = DateTime.Now;
            this.datetimeEnd.Value = DateTime.Now;
        }


        public string LoadStudy(string accessionNumber)
        {
            try
            {
                queryUrl = wado + "&requestType=Query&accessionNumber=" + accessionNumber;
                GetStudyList(queryUrl);
                study myStudy = studyList[0];
                string StudyPath = DownImage(myStudy);
                return StudyPath;
            }
            catch
            {
                return "";
            }

        }



        private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)
        {
            int selectindex = dataGridView1.CurrentRow.Index;
            string data1 = dataGridView1.CurrentRow.Cells[1].Value.ToString();
            toolStripStatusLabel2.Text = data1;
            study selectedStudy = studyList[selectindex];

        }

        private void dataGridView1_CellContentDoubleClick(object sender, DataGridViewCellEventArgs e)
        {
            try
            {
                int selectindex = dataGridView1.CurrentRow.Index;
                string data1 = dataGridView1.CurrentRow.Cells[1].Value.ToString();
                toolStripStatusLabel2.Text = data1;
                study selectedStudy = studyList[selectindex];
                toolStripStatusLabel3.Text = "准备下载图像：" + selectedStudy.objectUID.Count.ToString();
                toolStripProgressBar1.Maximum = selectedStudy.objectUID.Count +1;
                toolStripProgressBar1.Value = 0;
                string studyPath = null;
                studyPath = DownImage(selectedStudy);
                logtxt.AppendText("打开图像" + studyPath);
                MainFrm f1 = (MainFrm)this.Owner;
                f1.LoadStudy(studyPath);
                this.Owner.Show();
                this.Hide();
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex);
            }
            
        }

        public string DownImage (study myStudy)
        {
            string studyPath = tmpPath + "\\" + myStudy.accessionNumber;
            if (Directory.Exists(studyPath) == false)
            {
                Directory.CreateDirectory(studyPath);
            }
            else
            {
                DeleteFolder(studyPath);
                Directory.CreateDirectory(studyPath);
            }
            foreach (string objectUID in myStudy.objectUID)
            {
                string downloadObjectURL = downloadUrl + objectUID;
                HttpDldFile df = new HttpDldFile();
                toolStripStatusLabel3.Text = "准备下载图像：" + myStudy.objectUID.Count.ToString() + "--" + toolStripProgressBar1.Value.ToString();
                bool dw = df.Download(downloadObjectURL, studyPath + "\\" + objectUID + ".dcm");
                if (dw)
                {
                    Console.WriteLine("ok");
                    toolStripProgressBar1.Value = toolStripProgressBar1.Value + 1;

                }
            }
            return studyPath;
        }
        private void DeleteFolder(string dir)
        {
            foreach (string d in Directory.GetFileSystemEntries(dir))
            {
                if (File.Exists(d))
                {
                    try
                    {
                        FileInfo fi = new FileInfo(d);
                        if (fi.Attributes.ToString().IndexOf("ReadOnly") != -1)
                            fi.Attributes = FileAttributes.Normal;
                        File.Delete(d);//直接删除其中的文件 
                    }
                    catch
                    {

                    }
                }
                else
                {
                    try
                    {
                        DirectoryInfo d1 = new DirectoryInfo(d);
                        if (d1.GetFiles().Length != 0)
                        {
                            DeleteFolder(d1.FullName);////递归删除子文件夹
                        }
                        Directory.Delete(d);
                    }
                    catch
                    {

                    }
                }
            }
        }

        private void statusStrip1_MouseDoubleClick(object sender, MouseEventArgs e)
        {
            logtxt.Left = 8;
            logtxt.Top = this.Height - logtxt.Height - 70;
            logtxt.Width = this.Width - 40;
            logtxt.Visible = !logtxt.Visible;
        }
    }
}