/*
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation.
 *
 * 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 Lesser General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 *
 *
 * Authors:
 *		Chris Lahey <clahey@ximian.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <glib/gi18n.h>

#include "e-misc-utils.h"
#include "e-util-private.h"
#include "gal-view-etable.h"
#include "gal-view-instance-save-as-dialog.h"

G_DEFINE_TYPE (GalViewInstanceSaveAsDialog, gal_view_instance_save_as_dialog, GTK_TYPE_DIALOG)

enum {
	PROP_0,
	PROP_INSTANCE
};

enum {
	COL_GALVIEW_NAME,
	COL_GALVIEW_DATA
};

/* Static functions */
static void
gal_view_instance_save_as_dialog_set_instance (GalViewInstanceSaveAsDialog *dialog,
                                               GalViewInstance *instance)
{
	GtkListStore *store;
	GtkCellRenderer *renderer;
	gint ii, view_count;

	dialog->instance = instance;

	store = gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_POINTER);

	view_count = gal_view_collection_get_count (instance->collection);

	for (ii = 0; ii < view_count; ii++) {
		GalViewCollectionItem *item;
		GtkTreeIter iter;
		gchar *title = NULL;

		item = gal_view_collection_get_view_item (
			instance->collection, ii);

		title = e_str_without_underscores (item->title);

		gtk_list_store_append (store, &iter);
		gtk_list_store_set (
			store, &iter,
			COL_GALVIEW_NAME, title,
			COL_GALVIEW_DATA, item,
			-1);

		g_free (title);
	}

	gtk_tree_sortable_set_sort_column_id (
		GTK_TREE_SORTABLE (store),
			COL_GALVIEW_NAME, GTK_SORT_ASCENDING);

	/* attaching treeview to model */
	gtk_tree_view_set_model (dialog->treeview, GTK_TREE_MODEL (store));
	gtk_tree_view_set_search_column (dialog->treeview, COL_GALVIEW_NAME);

	dialog->model = GTK_TREE_MODEL (store);

	renderer = gtk_cell_renderer_text_new ();

	gtk_tree_view_insert_column_with_attributes (
		dialog->treeview,
		COL_GALVIEW_NAME, _("Name"),
		renderer, "text", COL_GALVIEW_NAME,
		NULL);

	/* set sort column */
	gtk_tree_sortable_set_sort_column_id (
		GTK_TREE_SORTABLE (dialog->model),
		COL_GALVIEW_NAME, GTK_SORT_ASCENDING);
}

static void
gvisad_setup_validate_button (GalViewInstanceSaveAsDialog *dialog)
{
	if ((dialog->toggle == GAL_VIEW_INSTANCE_SAVE_AS_DIALOG_TOGGLE_CREATE
	      && g_utf8_strlen (gtk_entry_get_text (GTK_ENTRY (dialog->entry_create)), -1) > 0)
	    || dialog->toggle == GAL_VIEW_INSTANCE_SAVE_AS_DIALOG_TOGGLE_REPLACE) {
		gtk_dialog_set_response_sensitive (GTK_DIALOG (dialog), GTK_RESPONSE_OK, TRUE);
	} else {
		gtk_dialog_set_response_sensitive (GTK_DIALOG (dialog), GTK_RESPONSE_OK, FALSE);
	}
}

static void
gvisad_setup_radio_buttons (GalViewInstanceSaveAsDialog *dialog)
{
	GtkWidget        *widget;

	widget = dialog->scrolledwindow;
	if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (dialog->radiobutton_replace))) {
		GtkTreeIter       iter;
		GtkTreeSelection *selection;

		selection = gtk_tree_view_get_selection (dialog->treeview);
		if (!gtk_tree_selection_get_selected (selection, &dialog->model, &iter)) {
			if (gtk_tree_model_get_iter_first (dialog->model, &iter)) {
				gtk_tree_selection_select_iter (selection, &iter);
			}
		}

		gtk_widget_set_sensitive (widget, TRUE);
		dialog->toggle = GAL_VIEW_INSTANCE_SAVE_AS_DIALOG_TOGGLE_REPLACE;
	} else {
		gtk_widget_set_sensitive (widget, FALSE);
	}

	widget = dialog->entry_create;
	if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (dialog->radiobutton_create))) {
		gtk_widget_set_sensitive (widget, TRUE);
		dialog->toggle = GAL_VIEW_INSTANCE_SAVE_AS_DIALOG_TOGGLE_CREATE;
	} else {
		gtk_widget_set_sensitive (widget, FALSE);
	}

	gvisad_setup_validate_button (dialog);
}

static void
gvisad_radio_toggled (GtkWidget *widget,
                      GalViewInstanceSaveAsDialog *dialog)
{
	gvisad_setup_radio_buttons (dialog);
}

static void
gvisad_entry_changed (GtkWidget *widget,
                      GalViewInstanceSaveAsDialog *dialog)
{
	gvisad_setup_validate_button (dialog);
}

/* Method override implementations */
static void
gal_view_instance_save_as_dialog_set_property (GObject *object,
                                               guint property_id,
                                               const GValue *value,
                                               GParamSpec *pspec)
{
	GalViewInstanceSaveAsDialog *dialog;

	dialog = GAL_VIEW_INSTANCE_SAVE_AS_DIALOG (object);

	switch (property_id) {
	case PROP_INSTANCE:
		if (g_value_get_object (value))
			gal_view_instance_save_as_dialog_set_instance (dialog, GAL_VIEW_INSTANCE (g_value_get_object (value)));
		else
			gal_view_instance_save_as_dialog_set_instance (dialog, NULL);
		break;

	default:
		return;
	}
}

static void
gal_view_instance_save_as_dialog_get_property (GObject *object,
                                               guint property_id,
                                               GValue *value,
                                               GParamSpec *pspec)
{
	GalViewInstanceSaveAsDialog *dialog;

	dialog = GAL_VIEW_INSTANCE_SAVE_AS_DIALOG (object);

	switch (property_id) {
	case PROP_INSTANCE:
		g_value_set_object (value, dialog->instance);
		break;

	default:
		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
		break;
	}
}

static void
gal_view_instance_save_as_dialog_dispose (GObject *object)
{
	GalViewInstanceSaveAsDialog *gal_view_instance_save_as_dialog = GAL_VIEW_INSTANCE_SAVE_AS_DIALOG (object);

	if (gal_view_instance_save_as_dialog->builder)
		g_object_unref (gal_view_instance_save_as_dialog->builder);
	gal_view_instance_save_as_dialog->builder = NULL;

	/* Chain up to parent's dispose() method. */
	G_OBJECT_CLASS (gal_view_instance_save_as_dialog_parent_class)->dispose (object);
}

/* Init functions */
static void
gal_view_instance_save_as_dialog_class_init (GalViewInstanceSaveAsDialogClass *class)
{
	GObjectClass *object_class;

	object_class = (GObjectClass *) class;

	object_class->set_property = gal_view_instance_save_as_dialog_set_property;
	object_class->get_property = gal_view_instance_save_as_dialog_get_property;
	object_class->dispose = gal_view_instance_save_as_dialog_dispose;

	g_object_class_install_property (
		object_class,
		PROP_INSTANCE,
		g_param_spec_object (
			"instance",
			"Instance",
			NULL,
			GAL_TYPE_VIEW_INSTANCE,
			G_PARAM_READWRITE));
}

static void
gal_view_instance_save_as_dialog_init (GalViewInstanceSaveAsDialog *dialog)
{
	GtkWidget *content_area;
	GtkWidget *widget;

	dialog->instance = NULL;
	dialog->model = NULL;
	dialog->collection = NULL;

	dialog->builder = gtk_builder_new ();
	e_load_ui_builder_definition (
		dialog->builder, "gal-view-instance-save-as-dialog.ui");

	widget = e_builder_get_widget (dialog->builder, "vbox-top");
	content_area = gtk_dialog_get_content_area (GTK_DIALOG (dialog));
	gtk_box_pack_start (GTK_BOX (content_area), widget, TRUE, TRUE, 0);

	/* TODO: add position/size saving/restoring */
	gtk_container_set_border_width (GTK_CONTAINER (dialog), 5);
	gtk_window_set_default_size (GTK_WINDOW (dialog), 300, 360);

	gtk_dialog_add_buttons (
		GTK_DIALOG (dialog),
		_("_Cancel"), GTK_RESPONSE_CANCEL,
		_("_Save"), GTK_RESPONSE_OK,
		NULL);

	dialog->scrolledwindow = e_builder_get_widget (dialog->builder, "scrolledwindow2");
	dialog->treeview = GTK_TREE_VIEW (e_builder_get_widget (dialog->builder, "custom-replace"));
	dialog->entry_create = e_builder_get_widget (dialog->builder, "entry-create");
	dialog->radiobutton_replace = e_builder_get_widget (dialog->builder, "radiobutton-replace");
	dialog->radiobutton_create = e_builder_get_widget (dialog->builder, "radiobutton-create");

	gtk_tree_view_set_reorderable (GTK_TREE_VIEW (dialog->treeview), FALSE);
	gtk_tree_view_set_headers_visible (dialog->treeview, FALSE);

	g_signal_connect (
		dialog->radiobutton_replace, "toggled",
		G_CALLBACK (gvisad_radio_toggled), dialog);
	g_signal_connect (
		dialog->radiobutton_create, "toggled",
		G_CALLBACK (gvisad_radio_toggled), dialog);
	g_signal_connect (
		dialog->entry_create, "changed",
		G_CALLBACK (gvisad_entry_changed), dialog);

	gvisad_setup_radio_buttons (dialog);
	gvisad_setup_validate_button (dialog);

	gtk_window_set_title (GTK_WINDOW (dialog), _("Save Current View"));
	gtk_widget_show (GTK_WIDGET (dialog));
}

/* External methods */
/**
 * gal_view_instance_save_as_dialog_new
 *
 * Returns a new dialog for defining views.
 *
 * Returns: The GalViewInstanceSaveAsDialog.
 */
GtkWidget *
gal_view_instance_save_as_dialog_new (GalViewInstance *instance)
{
	GtkWidget *widget = g_object_new (GAL_TYPE_VIEW_INSTANCE_SAVE_AS_DIALOG, NULL);
	gal_view_instance_save_as_dialog_set_instance (GAL_VIEW_INSTANCE_SAVE_AS_DIALOG (widget), instance);
	return widget;
}

void
gal_view_instance_save_as_dialog_save (GalViewInstanceSaveAsDialog *dialog)
{
	GalView *view = gal_view_instance_get_current_view (dialog->instance);
	const gchar *title;
	const gchar *id = NULL;
	GalViewCollection *collection;
	GalViewCollectionItem *item;
	gint ii, view_count;

	collection = dialog->instance->collection;
	view_count = gal_view_collection_get_count (collection);

	view = gal_view_clone (view);

	switch (dialog->toggle) {
	case GAL_VIEW_INSTANCE_SAVE_AS_DIALOG_TOGGLE_REPLACE:
		if (dialog->treeview) {
			GtkTreeIter iter;
			GtkTreeSelection *selection;

			selection = gtk_tree_view_get_selection (dialog->treeview);
			if (gtk_tree_selection_get_selected (selection, &dialog->model, &iter)) {
				gtk_tree_model_get (dialog->model, &iter, COL_GALVIEW_DATA, &item, -1);

				for (ii = 0; ii < view_count; ii++) {
					GalViewCollectionItem *candidate;

					candidate = gal_view_collection_get_view_item (collection, ii);
					if (item == candidate) {
						id = gal_view_collection_set_nth_view (collection, ii, view);
						gal_view_collection_save (collection);
					}
				}
			}

		}
		break;

	case GAL_VIEW_INSTANCE_SAVE_AS_DIALOG_TOGGLE_CREATE:
		if (dialog->entry_create && GTK_IS_ENTRY (dialog->entry_create)) {
			title = gtk_entry_get_text (GTK_ENTRY (dialog->entry_create));
			id = gal_view_collection_append_with_title (collection, title, view);
			gal_view_collection_save (collection);
		}
		break;
	}

	/* The view stored in the collection should not be left attached, but detach it
	   only after it's saved, to have data to save. */
	if (GAL_IS_VIEW_ETABLE (view))
		gal_view_etable_detach (GAL_VIEW_ETABLE (view));

	if (id) {
		gal_view_instance_set_current_view_id (dialog->instance, id);
	}

	g_clear_object (&view);
}
