// Copyright 2012 ESRI
// 
// All rights reserved under the copyright laws of the United States
// and applicable international laws, treaties, and conventions.
// 
// You may freely redistribute and use this sample code, with or
// without modification, provided you include the original copyright
// notice and use restrictions.
// 
// See the use restrictions.
// 

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Xml;
using ESRI.ArcGIS.ArcMap;
using ESRI.ArcGIS.ArcMapUI;
using ESRI.ArcGIS.esriSystem;
using ESRI.ArcGIS.Framework;
using System.IO;

namespace CustomReport_CS
{
    public partial class ExportReport : Form
    {
        #region Member Variables
        String m_FileLocation;
        Dictionary<Int32, String> reports;
        #endregion

        public ExportReport()
        {
            InitializeComponent();
        }

        private void ExportReport_Load(object sender, EventArgs e)
        {
            // store the templates information
            reports = new Dictionary<Int32,String>();
            m_FileLocation = CustomReport_CS.Properties.Settings.Default.DataLocation;
            String[] filePaths = Directory.GetFiles(m_FileLocation, "*.rlf");
            XmlDocument doc = new XmlDocument();
            try
            {
                for (Int32 c = 0; c <= (filePaths.Count() - 1); c += 1)
                {
                    String fileLocation = filePaths[c];
                    doc.Load(fileLocation);
                    String title = this.ReadRTFElement(doc, "/Report", "Name");
                    reports.Add(c, fileLocation);
                    this.lstReports.Items.Add(title);
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString());
            }
            finally
            {
                doc = null;
            }
        }
        private void btnGenerate_Click(object sender, EventArgs e)
        {
            SaveFileDialog savDialog = new SaveFileDialog();
            savDialog.Filter = "PDF(*.pdf)\"|*.pdf";
            savDialog.AddExtension = true;
            DialogResult result;
            result = savDialog.ShowDialog();
            String savFile = savDialog.FileName;

            if (result == DialogResult.OK)
            {
                IMxDocument mxDoc;
                IReportDataSource rDS = new Report();
                IReportTemplate rwTemplate;
                IReportEngine rwEngine;
                Process openPDFProcess = new Process();
                try
                {
                    mxDoc = (IMxDocument)ArcMap.Application.Document;

                    for (int i = 0; i < mxDoc.FocusMap.LayerCount; i += 1)
                    {
                        if (mxDoc.FocusMap.get_Layer(i).Name == "Counties")
                        {
                            rDS.Layer = mxDoc.FocusMap.get_Layer(i);
                            break;
                        }
                    }
                    rwTemplate = (IReportTemplate)rDS;
                    rwTemplate.LoadReportTemplate(m_FileLocation);
                    rwEngine = (IReportEngine)rDS;
                    rwEngine.RunReport(null);
                    String pdfReport = (savFile);
                    rwEngine.ExportReport(pdfReport, "1", esriReportExportType.esriReportExportPDF);

                    // launch PDF
                    openPDFProcess.StartInfo.UseShellExecute = true;
                    openPDFProcess.StartInfo.CreateNoWindow = true;
                    openPDFProcess.StartInfo.FileName = pdfReport;
                    openPDFProcess.Start();
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.ToString());
                }
                finally
                {
                    mxDoc = null;
                    rDS = null;
                    rwTemplate = null;
                    rwEngine = null;
                    openPDFProcess = null;
                }
            }
            else
            {
                savDialog.Dispose();
            }
        }

        private void btnCancel_Click(object sender, EventArgs e)
        {
            this.Dispose();
        }

        private void lstReports_SelectedIndexChanged(object sender, EventArgs e)
        {
            m_FileLocation = reports[lstReports.SelectedIndex];
            this.txtReportInformation.Clear();
            XmlDocument doc = new XmlDocument();
            try
            {
                doc.Load(m_FileLocation);
                // Data source
                txtReportInformation.Text = "DataSource:" + Environment.NewLine +
                                            ReadRTFElement(doc, "/Report/DataSource/Workspace", "PathName");
                // Data name
                txtReportInformation.Text = txtReportInformation.Text + Environment.NewLine + "Name:" + Environment.NewLine +
                                            ReadRTFElement(doc, "/Report/DataSource", "Name");
                // Fields
                txtReportInformation.Text = txtReportInformation.Text + Environment.NewLine + "Fields:" + Environment.NewLine +
                                            ReadRTFElement(doc, "/Report/ReportFields/Field", "Name");
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString());
            }
            finally
            {
                doc = null;
            }
        }

        private String ReadRTFElement(XmlDocument doc, String tagLocation, String elementName)
        {
           
            String retValue = "";
            // Get and display all the book titles.
            XmlElement root = doc.DocumentElement;
            XmlNodeList elemList = root.SelectNodes(tagLocation);
            try
            {
                foreach (XmlNode title in elemList)
                {
                    if (retValue == "")
                    {
                        retValue = title.Attributes[elementName].Value + Environment.NewLine;
                    }
                    else
                    {
                        retValue = retValue + title.Attributes[elementName].Value + Environment.NewLine;
                    }
                }
                return retValue;
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                root = null;
                elemList = null;
            }
        }
    }
}