/*
     This file is part of GNUnet
     (C) 2005, 2006, 2010 Christian Grothoff (and other contributing authors)

     GNUnet is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published
     by the Free Software Foundation; either version 2, or (at your
     option) any later version.

     GNUnet is distributed in the hope that it will be useful, but
     WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     General Public License for more details.

     You should have received a copy of the GNU General Public License
     along with GNUnet; see the file COPYING.  If not, write to the
     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
     Boston, MA 02111-1307, USA.
*/

/**
 * @file src/fs/gnunet-fs-gtk-main_window_adv_pseudonym.c
 * @author Christian Grothoff
 */
#include "gnunet-fs-gtk-common.h"
#include "gnunet-fs-gtk.h"
#include "gnunet-fs-gtk-edit_publish_dialog.h"

/**
 * Callback with information about local (!) namespaces.
 * Contains the names of the local namespace and the global
 * ID.  Adds the to the list store.
 *
 * @param cls closure, the list store.
 * @param name human-readable identifier of the namespace
 * @param id hash identifier for the namespace
 */
static void
add_to_list (void *cls, const char *name, const GNUNET_HashCode * id)
{
  GtkListStore *ls = cls;
  GtkTreeIter iter;

  gtk_list_store_insert_with_values (ls, &iter, -1, 0, name, 1,
                                     GNUNET_FS_namespace_create
                                     (GNUNET_FS_GTK_get_fs_handle (), name),
                                     -1);

}


static void
selection_changed_cb (GtkTreeSelection * ts, gpointer user_data)
{
  GtkTreeIter iter;
  GtkWidget *ok_button;
  GtkBuilder *builder;
  builder = GTK_BUILDER (user_data);

  ok_button =
      GTK_WIDGET (gtk_builder_get_object
                  (builder, "GNUNET_GTK_select_pseudonym_ok_button"));
  if (TRUE == gtk_tree_selection_get_selected (ts, NULL, &iter))
    gtk_widget_set_sensitive (ok_button, TRUE);
  else
    gtk_widget_set_sensitive (ok_button, FALSE);
}

struct namespace_data_struct
{
  struct GNUNET_FS_Namespace *ns;
  int do_index;
  char *short_fn;
  guint anonymity_level;
  guint priority;
  gchar *root;
};

/**
 * Function called on entries in a GNUNET_FS_FileInformation publish-structure.
 *
 * @param cls closure
 * @param fi the entry in the publish-structure
 * @param length length of the file or directory
 * @param meta metadata for the file or directory (can be modified)
 * @param uri pointer to the keywords that will be used for this entry (can be modified)
 * @param bo block options (can be modified)
 * @param do_index should we index (can be modified)
 * @param client_info pointer to client context set upon creation (can be modified)
 * @return GNUNET_OK to continue, GNUNET_NO to remove
 *         this entry from the directory, GNUNET_SYSERR
 *         to abort the iteration
 */
int
advertise_namespace (void *cls, struct GNUNET_FS_FileInformation *fi,
    uint64_t length, struct GNUNET_CONTAINER_MetaData *meta,
    struct GNUNET_FS_Uri **uri, struct GNUNET_FS_BlockOptions *bo,
    int *do_index, void **client_info)
{
  struct namespace_data_struct *nds;
  nds = (struct namespace_data_struct *) cls;
  GNUNET_FS_namespace_advertise (GNUNET_FS_GTK_get_fs_handle (), *uri,
      nds->ns, meta, bo, nds->root, NULL, NULL);
  return GNUNET_SYSERR;
}

void
adv_pseudonym_edit_publish_dialog_cb (gpointer cls, int *do_index, char **short_fn,
    guint * anonymity_level, guint * priority, gchar *root,
    struct GNUNET_FS_FileInformation *fip, gint ret)
{
  struct namespace_data_struct *nds;
  nds = (struct namespace_data_struct *) cls;

  if (ret == GTK_RESPONSE_OK)
  {
    nds->do_index = *do_index;
    nds->short_fn = *short_fn;
    nds->anonymity_level = *anonymity_level;
    nds->priority = *priority;
    nds->root = root;
    GNUNET_FS_file_information_inspect (fip,
        advertise_namespace, nds);
  }
  g_free (nds->root);
  GNUNET_FS_namespace_delete (nds->ns, GNUNET_NO);
  g_free (nds);
  GNUNET_FS_file_information_destroy (fip, NULL, NULL);
}

void
GNUNET_GTK_select_pseudonym_dialog_response_cb (GtkDialog *dialog,
   gint response_id, gpointer user_data)
{
  GtkBuilder *builder;
  GtkWidget *ad;
  GtkTreeView *tv;
  GtkTreeSelection *sel;
  GtkTreeModel *tm;
  GtkTreeIter iter;
  struct GNUNET_FS_Namespace *ns;
  struct GNUNET_FS_Namespace *nso;
  GtkWindow *transient;
  struct namespace_data_struct *nds;
  struct GNUNET_FS_FileInformation *fip;
  struct GNUNET_CONTAINER_MetaData *meta;
  builder = GTK_BUILDER (user_data);
  struct GNUNET_FS_BlockOptions bo;

  ad = GTK_WIDGET (gtk_builder_get_object
                   (builder, "GNUNET_GTK_select_pseudonym_dialog"));

  if (response_id != -5)
  {
    gtk_widget_hide (ad);
    return;
  }
  tv = GTK_TREE_VIEW (gtk_builder_get_object
                      (builder,
                       "GNUNET_GTK_select_pseudonym_tree_view"));
  sel = gtk_tree_view_get_selection (tv);

  GNUNET_assert (TRUE == gtk_tree_selection_get_selected (sel, &tm, &iter));
  gtk_tree_model_get (tm, &iter, 1, &ns, -1);
  /* free all namespaces from list store except "ns" */
  if (TRUE == gtk_tree_model_get_iter_first (tm, &iter))
  {
    do
    {
      gtk_tree_model_get (tm, &iter, 1, &nso, -1);
      if (ns != nso)
        GNUNET_FS_namespace_delete (nso, GNUNET_NO);
    }
    while (TRUE == gtk_tree_model_iter_next (tm, &iter));
  }
  transient = gtk_window_get_transient_for (GTK_WINDOW (ad));
  gtk_widget_hide (ad);

  meta = GNUNET_CONTAINER_meta_data_create ();

  nds = g_new0 (struct namespace_data_struct, 1);
  nds->ns = ns;
  nds->do_index = FALSE;
  nds->short_fn = NULL;
  nds->anonymity_level = 1;
  nds->priority = 1000;
  nds->root = NULL;
  /* This is a bogus fileinfo. It's needed because edit_publish_dialog
   * was written to work with fileinfo, and return a fileinfo.
   */
  memset (&bo, 0, sizeof (bo));
  fip = GNUNET_FS_file_information_create_empty_directory (NULL, NULL,
      NULL, meta, &bo);
  GNUNET_CONTAINER_meta_data_destroy (meta);

  GNUNET_FS_GTK_edit_publish_dialog (builder, transient, &nds->do_index,
      &nds->short_fn, &nds->anonymity_level, &nds->priority,
      fip, FALSE, &adv_pseudonym_edit_publish_dialog_cb, nds);
}

void
GNUNET_GTK_select_pseudonym_dialog_realize_cb (GtkWidget *widget,
    gpointer user_data)
{
  GtkTreeView *tv;
  GtkTreeSelection *sel;
  GtkBuilder *builder;

  builder = GTK_BUILDER (user_data);

  tv = GTK_TREE_VIEW (gtk_builder_get_object
                      (builder, "GNUNET_GTK_select_pseudonym_tree_view"));
  sel = gtk_tree_view_get_selection (tv);
  g_signal_connect (G_OBJECT (sel), "changed",
                    G_CALLBACK (selection_changed_cb), user_data);
}

/**
 * Advertise pseudonym selected.
 */
void
GNUNET_GTK_main_menu_file_advertise_pseudonym_activate_cb (GtkWidget * dummy,
                                                           gpointer data)
{
  GtkWidget *ad;
  GtkListStore *ls;
  GtkWidget *toplevel;
  GtkBuilder *builder;

  builder = GTK_BUILDER (data);

  ad = GTK_WIDGET (gtk_builder_get_object
                   (builder, "GNUNET_GTK_select_pseudonym_dialog"));
  ls = GTK_LIST_STORE (gtk_builder_get_object
                       (builder, "GNUNET_GTK_select_pseudonym_liststore"));
  gtk_list_store_clear (ls);
  GNUNET_FS_namespace_list (GNUNET_FS_GTK_get_fs_handle (), &add_to_list, ls);
  toplevel = gtk_widget_get_toplevel (dummy);
  if (GTK_IS_WINDOW (toplevel))
    gtk_window_set_transient_for (GTK_WINDOW (ad), GTK_WINDOW (toplevel));
  gtk_window_present (GTK_WINDOW (ad));
}


/* end of gnunet-fs-gtk-main_window_adv_pseudonym.c */