using Gtk;
using Gee;

// class FileInfoCollection2 - keeps a collection of File2 objects

public class FileInfoCollection2 : GLib.Object
{
  Gee.ArrayList<File2> innerList;

  public FileInfoCollection2(){
    innerList = new Gee.ArrayList<File2>();
  }

  public void add(FileInfo fileinfo){
    innerList.add(new File2(fileinfo));
  }

  public int length(){
    return innerList.size;
  }

  public File2 getItem(int i){
    return innerList.get(i);
  }

  public void SortByName(){
    innerList.sort();
  }
}


// class File - wraps a GLib.FileInfo object

public class File2 : GLib.Object, Comparable<File2>
{
  private FileInfo f;

  public File2(FileInfo file){
    f = file;
  }

  public string get_name(){
    return f.get_name();
  }

  public int compare_to (File2 f ){
    var a = f.get_name();
    var b = this.get_name();

    return strcmp(a,b);
  }
}



// App - gets a bunch of files from disk

public class App {
  public void* sync_list_directory(string dir) {

    try {
        var directory = File.new_for_path (dir);
        var enumerator = directory.enumerate_children (FILE_ATTRIBUTE_STANDARD_NAME, 0, null);
        FileInfo file_info;
        FileInfoCollection2 coll = new FileInfoCollection2();

        while ((file_info = enumerator.next_file (null)) != null) {
          coll.add(file_info);
        }

        coll.SortByName(); // This causes crash. Comment it out and program will not crash.

        for (var i=0; i<coll.length();i++){
          stdout.printf("[%d] - %s\n",i, coll.getItem(i).get_name());
        }
      }
      catch (Error e){
        stderr.printf ("Error: %s\n", e.message);
      }

      return null;
      }

}



// Entry point

static int main (string[] args)
{
  var app = new App();
  app.sync_list_directory("/home/chriniss/");
  return 0;
}