/* GIMP - The GNU Image Manipulation Program
 * Copyright (C) 1995 Spencer Kimball and Peter Mattis
 *
 * This program 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 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.
 */

#include "config.h"

#include <string.h>

#include <gegl.h>
#include <gtk/gtk.h>

#include "libgimpbase/gimpbase.h"

#include "actions-types.h"

#include "core/gimp.h"
#include "core/gimp-utils.h"
#include "core/gimpcontext.h"
#include "core/gimpimage.h"
#include "core/gimpprojectable.h"
#include "core/gimpprojection.h"

#include "gegl/gimp-gegl-utils.h"

#include "widgets/gimpaction.h"
#include "widgets/gimpactiongroup.h"
#include "widgets/gimpmenufactory.h"
#include "widgets/gimpuimanager.h"

#include "display/gimpdisplay.h"
#include "display/gimpdisplayshell.h"
#include "display/gimpimagewindow.h"

#include "menus/menus.h"

#include "actions.h"
#include "debug-commands.h"


/*  local function prototypes  */

static gboolean  debug_benchmark_projection    (GimpDisplay *display);
static gboolean  debug_show_image_graph        (GimpImage   *source_image);

static void      debug_dump_menus_recurse_menu (GtkWidget   *menu,
                                                gint         depth,
                                                gchar       *path);

static void      debug_print_qdata             (GimpObject  *object);
static void      debug_print_qdata_foreach     (GQuark       key_id,
                                                gpointer     data,
                                                gpointer     user_data);

static gboolean  debug_accel_find_func         (GtkAccelKey *key,
                                                GClosure    *closure,
                                                gpointer     data);


/*  public functions  */

void
debug_mem_profile_cmd_callback (GimpAction *action,
                                GVariant   *value,
                                gpointer    data)
{
  extern gboolean  gimp_debug_memsize;
  Gimp            *gimp;
  return_if_no_gimp (gimp, data);

  gimp_debug_memsize = TRUE;

  gimp_object_get_memsize (GIMP_OBJECT (gimp), NULL);

  gimp_debug_memsize = FALSE;
}

void
debug_benchmark_projection_cmd_callback (GimpAction *action,
                                         GVariant   *value,
                                         gpointer    data)
{
  GimpDisplay *display;
  return_if_no_display (display, data);

  g_idle_add ((GSourceFunc) debug_benchmark_projection, g_object_ref (display));
}

void
debug_show_image_graph_cmd_callback (GimpAction *action,
                                     GVariant   *value,
                                     gpointer    data)
{
  GimpImage *source_image = NULL;
  return_if_no_image (source_image, data);

  g_idle_add ((GSourceFunc) debug_show_image_graph, g_object_ref (source_image));
}

void
debug_dump_menus_cmd_callback (GimpAction *action,
                               GVariant   *value,
                               gpointer    data)
{
  GList *list;

  for (list = gimp_menu_factory_get_registered_menus (global_menu_factory);
       list;
       list = g_list_next (list))
    {
      GimpMenuFactoryEntry *entry = list->data;
      GList                *managers;

      managers = gimp_ui_managers_from_name (entry->identifier);

      if (managers)
        {
          GimpUIManager *manager = managers->data;
          GList         *list;

          for (list = manager->registered_uis; list; list = g_list_next (list))
            {
              GimpUIManagerUIEntry *ui_entry = list->data;

              if (GTK_IS_MENU_SHELL (ui_entry->widget))
                {
                  g_print ("\n\n"
                           "========================================\n"
                           "Menu: %s%s\n"
                           "========================================\n\n",
                           entry->identifier, ui_entry->ui_path);

                  debug_dump_menus_recurse_menu (ui_entry->widget, 1,
                                                 entry->identifier);
                  g_print ("\n");
                }
            }
        }
    }
}

void
debug_dump_managers_cmd_callback (GimpAction *action,
                                  GVariant   *value,
                                  gpointer    data)
{
  GList *list;

  for (list = gimp_menu_factory_get_registered_menus (global_menu_factory);
       list;
       list = g_list_next (list))
    {
      GimpMenuFactoryEntry *entry = list->data;
      GList                *managers;

      managers = gimp_ui_managers_from_name (entry->identifier);

      if (managers)
        {
          g_print ("\n\n"
                   "========================================\n"
                   "UI Manager: %s\n"
                   "========================================\n\n",
                   entry->identifier);

          g_print ("%s\n", gimp_ui_manager_get_ui (managers->data));
        }
    }
}

void
debug_dump_keyboard_shortcuts_cmd_callback (GimpAction *action,
                                            GVariant   *value,
                                            gpointer    data)
{
  GimpDisplay      *display;
  GimpImageWindow  *window;
  GimpUIManager    *manager;
  GtkAccelGroup    *accel_group;
  GList            *group_it;
  GList            *strings = NULL;
  return_if_no_display (display, data);

  window  = gimp_display_shell_get_window (gimp_display_get_shell (display));
  manager = gimp_image_window_get_ui_manager (window);

  accel_group = gimp_ui_manager_get_accel_group (manager);

  /* Gather formatted strings of keyboard shortcuts */
  for (group_it = gimp_ui_manager_get_action_groups (manager);
       group_it;
       group_it = g_list_next (group_it))
    {
      GimpActionGroup *group     = group_it->data;
      GList           *actions   = NULL;
      GList           *action_it = NULL;

      actions = gimp_action_group_list_actions (group);
      actions = g_list_sort (actions, (GCompareFunc) gimp_action_name_compare);

      for (action_it = actions; action_it; action_it = g_list_next (action_it))
        {
          GimpAction  *action        = action_it->data;
          const gchar *name          = gimp_action_get_name (action);
          GClosure    *accel_closure = NULL;

          if (strstr (name, "-menu")  ||
              strstr (name, "-popup") ||
              name[0] == '<')
              continue;

          accel_closure = gimp_action_get_accel_closure (action);

          if (accel_closure)
            {
              GtkAccelKey *key = gtk_accel_group_find (accel_group,
                                                       debug_accel_find_func,
                                                       accel_closure);
              if (key            &&
                  key->accel_key &&
                  key->accel_flags & GTK_ACCEL_VISIBLE)
                {
                  const gchar *label_tmp;
                  gchar       *label;
                  gchar       *key_string;

                  label_tmp  = gimp_action_get_label (action);
                  label      = gimp_strip_uline (label_tmp);
                  key_string = gtk_accelerator_get_label (key->accel_key,
                                                          key->accel_mods);

                  strings = g_list_prepend (strings,
                                            g_strdup_printf ("%-20s %s",
                                                             key_string, label));

                  g_free (key_string);
                  g_free (label);
                }
            }
        }

      g_list_free (actions);
    }

  /* Sort and prints the strings */
  {
    GList *string_it = NULL;

    strings = g_list_sort (strings, (GCompareFunc) strcmp);

    for (string_it = strings; string_it; string_it = g_list_next (string_it))
      {
        g_print ("%s\n", (gchar *) string_it->data);
        g_free (string_it->data);
      }

    g_list_free (strings);
  }
}

void
debug_dump_attached_data_cmd_callback (GimpAction *action,
                                       GVariant   *value,
                                       gpointer    data)
{
  Gimp        *gimp         = action_data_get_gimp (data);
  GimpContext *user_context = gimp_get_user_context (gimp);

  debug_print_qdata (GIMP_OBJECT (gimp));
  debug_print_qdata (GIMP_OBJECT (user_context));
}


/*  private functions  */

static gboolean
debug_benchmark_projection (GimpDisplay *display)
{
  GimpImage *image = gimp_display_get_image (display);

  if (image)
    {
      GimpProjection *projection = gimp_image_get_projection (image);

      gimp_projection_stop_rendering (projection);

      GIMP_TIMER_START ();

      gimp_image_invalidate_all (image);
      gimp_projection_flush_now (projection, TRUE);

      GIMP_TIMER_END ("Validation of the entire projection");

      g_object_unref (display);
    }

  return FALSE;
}

static gboolean
debug_show_image_graph (GimpImage *source_image)
{
  GeglNode   *image_graph;
  GeglNode   *output_node;
  GimpImage  *new_image;
  GeglNode   *introspect;
  GeglNode   *sink;
  GeglBuffer *buffer;
  gchar      *new_name;

  image_graph = gimp_projectable_get_graph (GIMP_PROJECTABLE (source_image));

  output_node = gegl_node_get_output_proxy (image_graph, "output");

  introspect = gegl_node_new_child (NULL,
                                    "operation", "gegl:introspect",
                                    "node",      output_node,
                                    NULL);
  sink = gegl_node_new_child (NULL,
                              "operation", "gegl:buffer-sink",
                              "buffer",    &buffer,
                              NULL);

  gegl_node_link_many (introspect, sink, NULL);
  gegl_node_process (sink);

  new_name = g_strdup_printf ("%s GEGL graph",
                              gimp_image_get_display_name (source_image));

  new_image = gimp_create_image_from_buffer (source_image->gimp,
                                             buffer, new_name);
  gimp_image_set_file (new_image, g_file_new_for_uri (new_name));

  g_free (new_name);

  g_object_unref (buffer);

  g_object_unref (sink);
  g_object_unref (introspect);

  g_object_unref (source_image);

  return FALSE;
}

static void
debug_dump_menus_recurse_menu (GtkWidget *menu,
                               gint       depth,
                               gchar     *path)
{
  GList *children;
  GList *list;

  children = gtk_container_get_children (GTK_CONTAINER (menu));

  for (list = children; list; list = g_list_next (list))
    {
      GtkWidget *menu_item = GTK_WIDGET (list->data);
      GtkWidget *child     = gtk_bin_get_child (GTK_BIN (menu_item));

      if (GTK_IS_LABEL (child))
        {
          GtkWidget   *submenu;
          const gchar *label;
          gchar       *full_path;
          gchar       *help_page;
          gchar       *format_str;

          label = gtk_label_get_text (GTK_LABEL (child));
          full_path = g_strconcat (path, "/", label, NULL);

          help_page = g_object_get_data (G_OBJECT (menu_item), "gimp-help-id");
          help_page = g_strdup (help_page);

          format_str = g_strdup_printf ("%%%ds%%%ds %%-20s %%s\n",
                                        depth * 2, depth * 2 - 40);
          g_print (format_str,
                   "", label, "", help_page ? help_page : "");
          g_free (format_str);
          g_free (help_page);

          submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (menu_item));

          if (submenu)
            debug_dump_menus_recurse_menu (submenu, depth + 1, full_path);

          g_free (full_path);
        }
    }

  g_list_free (children);
}

static void
debug_print_qdata (GimpObject *object)
{
  g_print ("\nData attached to '%s':\n\n", gimp_object_get_name (object));
  g_datalist_foreach (&G_OBJECT (object)->qdata,
                      debug_print_qdata_foreach,
                      NULL);
  g_print ("\n");
}

static void
debug_print_qdata_foreach (GQuark   key_id,
                           gpointer data,
                           gpointer user_data)
{
  g_print ("%s: %p\n", g_quark_to_string (key_id), data);
}

static gboolean
debug_accel_find_func (GtkAccelKey *key,
                       GClosure    *closure,
                       gpointer     data)
{
  return (GClosure *) data == closure;
}