Visual Studio 2010 Add-in that Adds Diff Tools, Web Project Reporting and Some Subversion Support

using Extensibility;
using EnvDTE;

using System;
using System.Collections;
using System.IO;
using System.Text;

namespace WebReports8 {

  /// <summary>Report the newest files in the current Project.</summary>
  /// <remarks>This kind of report exists in Frontapge, but not in Visual Studio,
  /// and is useful for reviewing the work of the last days.</remarks>
  public class ReportOldest : Report {

    // these paramters may be changed by a future Options page.
    private int topParam = 50; // default number of files to be reported.
    private DateTime since = DateTime.MinValue; // report files newer than this datetime

    private int found = 0; // number of found files.
    private DateTime newest = DateTime.MaxValue; // date-watermark: older files need not to be included into the list
    private string [] fNames; // list of filenames
    private DateTime [] fDates; // list of last Write Date


    /// <summary>Construtor, that initializes the private analysis data.</summary>
    public ReportOldest() {
      found = 0; // number of found files.
      newest = DateTime.MaxValue; // newest date of any entry in fNames
      fNames = new string[topParam];
      fDates = new DateTime[topParam];
    } // ReportOldest


    /// <summary>Number of arguments this report needs to run.</summary>
    public override int Arguments {
      get { return (1); }
    } // Arguments


    /// <summary>is set to true, when this report starts on a folder basis.</summary>
    public override bool FolderParameter {
      get { return (true); }
    }


    /// <summary>Use the root of the current Project as the default argument.</summary>
    public override string DefaultArgument(_DTE applicationObject) {
      return(Report.CurrentProjectFolder(applicationObject));
    } // DefaultArgument


    /// <summary>Do the analysis by walking through the current project and send html to the output.</summary>
    /// <param name="applicationObject">reference to the VS.NET</param>
    /// <param name="output">ouput stream</param>
    /// <param name="args">List of all arguments passed to this command.</param>
    public override void Render(_DTE applicationObject, StringWriter output, params string[] args) {
      string path = args[0];

      // do the work
      Walk(path);

      // sort all data
      Array.Sort(fDates, fNames, 0, found);

      string html = ExtractHtmlResource("WebReports.ReportOldest.htm");

      // write the starting html
      output.Write(html.Substring(0, html.IndexOf("[RESULT]")));

      // write the result to output table
      for (int n = found-1; n >= 0; n--) {
        output.Write("<tr><td nowrap><a href='DTE:file?file=" + System.Web.HttpUtility.UrlEncode(fNames[n]) + "'>" + System.Web.HttpUtility.HtmlEncode(fNames[n]) + "</a></td>");
        output.Write("<td>" + fDates[n].ToString() + "</td>");
        output.WriteLine("<td><a href='dte:backup?file=" + System.Web.HttpUtility.UrlEncode(fNames[n]) + "'>backup</a></td></tr>");
      } // for

      // write the end html
      output.Write(html.Substring(html.IndexOf("[RESULT]")+8));
    } // Render


    /// <summary>Analyze all sub-folder by recursion and all files of a folder.
    /// Do not analyse any folder starting with a undeline character.</summary>
    /// <param name="aFolder">Full name of the folder.</param>
    private void Walk(string aFolder) {
      string [] folders = Directory.GetDirectories (aFolder);
      for (int i = 0 ; i < folders.Length ; i++ ) {
        string aName = folders[i];
        int n = aName.LastIndexOf ('\\');
        if ((n+1 < aName.Length) && (aName[n+1] != '_' ))
          Walk(aName);
      } // for

      string [] files = Directory.GetFiles ( aFolder );
      for (int i = 0 ; i < files.Length ; i++ ) {
        string aName = files[i];
        DateTime aDate = File.GetLastWriteTime(aName);

        if (aDate < since) {
          // forget about that file

        } else if (found == 0) {
          // first found file
          newest = aDate;
          fNames[found] = aName;
          fDates[found] = aDate;
          found++;

        } else if (found < topParam) {
          // still space available
          if (aDate > newest)
            newest = aDate;
          fNames[found] = aName;
          fDates[found] = aDate;
          found++;

        } else if (aDate > newest) {
          Array.Sort(fDates, fNames, 0, found);
          // remove newest file and add current file.
          fDates[topParam-1] = aDate;
          fNames[topParam-1] = aName;
          newest = aDate;
          if (fDates[topParam-2] < newest)
            newest = fDates[topParam-2];
        } // if
      } // for
    } // Walk

  } // class

} // namespace