/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * e-minicard-control.c
 *
 * Copyright (C) 1999, 2000, 2001, 2002, Ximian, Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU 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 General Public
 * License along with this program; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * Authors:
 *    Chris Lahey <clahey@ximian.com>
 */

#include <config.h>
#include <string.h>

#include <gtk/gtk.h>
#include <bonobo/bonobo-generic-factory.h>
#include <bonobo/bonobo-persist.h>
#include <bonobo/bonobo-persist-stream.h>
#include <bonobo/bonobo-stream-client.h>
#include <gal/util/e-util.h>

#include <addressbook/gui/component/addressbook.h>
#include <addressbook/backend/ebook/e-book.h>
#include <addressbook/backend/ebook/e-book-util.h>
#include <addressbook/backend/ebook/e-card.h>

#include "e-minicard-control.h"
#include "e-minicard-widget.h"
#include "e-card-merging.h"

typedef struct {
	EMinicardWidget *minicard;
	GList *card_list;
	GtkWidget *label;
} EMinicardControl;

#define MINICARD_CONTROL_ID "OAFIID:GNOME_Evolution_Addressbook_MiniCard_Control"


#if 0
enum {
	PROP_RUNNING
} MyArgs;

#define RUNNING_KEY  "Clock::Running"

static void
get_prop (BonoboPropertyBag *bag,
	  BonoboArg         *arg,
	  guint              arg_id,
	  CORBA_Environment *ev,
	  gpointer           user_data)
{
	GObject *clock = user_data;

	switch (arg_id) {

	case PROP_RUNNING:
	{
		gboolean b = GPOINTER_TO_UINT (g_object_get_data (clock, RUNNING_KEY));
		BONOBO_ARG_SET_BOOLEAN (arg, b);
		break;
	}

	default:
		g_warning ("Unhandled arg %d", arg_id);
		break;
	}
}

static void
set_prop (BonoboPropertyBag *bag,
	  const BonoboArg   *arg,
	  guint              arg_id,
	  CORBA_Environment *ev,
	  gpointer           user_data)
{
	GtkClock *clock = user_data;

	switch (arg_id) {

	case PROP_RUNNING:
	{
		guint i;

		i = BONOBO_ARG_GET_BOOLEAN (arg);

		if (i)
			gtk_clock_start (clock);
		else
			gtk_clock_stop (clock);

		g_object_set_data (clock, RUNNING_KEY,
				   GUINT_TO_POINTER (i));
		break;
	}

	default:
		g_warning ("Unhandled arg %d", arg_id);
		break;
	}
}
#endif

/*
 * Bonobo::PersistStream
 *
 * These two functions implement the Bonobo::PersistStream load and
 * save methods which allow data to be loaded into and out of the
 * BonoboObject.
 */
static char *
stream_read (Bonobo_Stream stream)
{
	Bonobo_Stream_iobuf *buffer;
	CORBA_Environment    ev;
	char *data = NULL;
	gint length = 0;

	CORBA_exception_init (&ev);
	do {
#define READ_CHUNK_SIZE 65536
		Bonobo_Stream_read (stream, READ_CHUNK_SIZE,
				    &buffer, &ev);

		if (ev._major != CORBA_NO_EXCEPTION) {
			CORBA_exception_free (&ev);
			return NULL;
		}

		if (buffer->_length <= 0)
			break;

		data = g_realloc (data, length + buffer->_length + 1);

		memcpy (data + length, buffer->_buffer, buffer->_length);

		length += buffer->_length;

		CORBA_free (buffer);
	} while (1);

	CORBA_free (buffer);
	CORBA_exception_free (&ev);

	if (data)
		data[length] = '\0';
	else
		data = g_strdup("");

	return data;
} /* stream_read */

/*
 * This function implements the Bonobo::PersistStream:load method.
 */
static void
pstream_load (BonoboPersistStream *ps, const Bonobo_Stream stream,
	      Bonobo_Persist_ContentType type, void *data,
	      CORBA_Environment *ev)
{
	GList *list;
	char *vcard;
	EMinicardControl *minicard_control = data;

	if (type && g_ascii_strcasecmp (type, "text/vCard") != 0 &&	    
	    g_ascii_strcasecmp (type, "text/x-vCard") != 0) {	    
		CORBA_exception_set (ev, CORBA_USER_EXCEPTION,
				     ex_Bonobo_Persist_WrongDataType, NULL);
		return;
	}

	if ((vcard = stream_read (stream)) == NULL) {
		CORBA_exception_set (ev, CORBA_USER_EXCEPTION,
				     ex_Bonobo_Persist_FileNotFound, NULL);
		return;
	}

	e_free_object_list (minicard_control->card_list);
	list = e_card_load_cards_from_string_with_default_charset(vcard, "ISO-8859-1");
	g_free(vcard);
	minicard_control->card_list = list;
	if (list)
		g_object_set(minicard_control->minicard,
			     "card", list->data,
			     NULL);
	if (list && list->next) {
		char *message;
		int length = g_list_length (list) - 1;
		if (length > 1) {
			message = g_strdup_printf (_("and %d other cards."), length);
		} else {
			message = g_strdup_printf (_("and one other card."));
		}
		gtk_label_set_text (GTK_LABEL (minicard_control->label), message);
		g_free (message);
		gtk_widget_show (minicard_control->label);
	} else {
		gtk_widget_hide (minicard_control->label);
	}
} /* pstream_load */

/*
 * This function implements the Bonobo::PersistStream:save method.
 */
static void
pstream_save (BonoboPersistStream *ps, const Bonobo_Stream stream,
	      Bonobo_Persist_ContentType type, void *data,
	      CORBA_Environment *ev)
{
	EMinicardControl *minicard_control = data;
	char             *vcard;
	int               length;

	if (type && g_ascii_strcasecmp (type, "text/vCard") != 0 &&	    
	    g_ascii_strcasecmp (type, "text/x-vCard") != 0) {	    
		CORBA_exception_set (ev, CORBA_USER_EXCEPTION,
				     ex_Bonobo_Persist_WrongDataType, NULL);
		return;
	}

	vcard = e_card_list_get_vcard(minicard_control->card_list);
	length = strlen (vcard);
	bonobo_stream_client_write (stream, vcard, length, ev);
	g_free (vcard);
} /* pstream_save */

static Bonobo_Persist_ContentTypeList *
pstream_get_content_types (BonoboPersistStream *ps, void *closure,
			   CORBA_Environment *ev)
{
	return bonobo_persist_generate_content_types (2, "text/vCard", "text/x-vCard");
}

static void
book_open_cb (EBook *book, EBookStatus status, gpointer closure)
{
	GList *list = closure;
	if (status == E_BOOK_STATUS_SUCCESS) {
		GList *p;
		for (p = list; p; p = p->next) {
			e_card_merging_book_add_card(book, p->data, NULL, NULL);
		}
	}
	if (book)
		g_object_unref (book);
	e_free_object_list (list);
}

static void
save_in_addressbook(GtkWidget *button, gpointer data)
{
	EMinicardControl *minicard_control = data;
	GList *list, *p;
	EBook *book;

	book = e_book_new ();

	list = g_list_copy (minicard_control->card_list);

	for (p = list; p; p = p->next)
		g_object_ref (p->data);

	addressbook_load_default_book (book, book_open_cb, list);
}

static void
free_struct (gpointer data, GObject *where_object_was)
{
	EMinicardControl *minicard_control = data;
	e_free_object_list (minicard_control->card_list);
	g_free (minicard_control);
}

BonoboControl *
e_minicard_control_new (void)
{
#if 0
	BonoboPropertyBag  *pb;
#endif
	BonoboControl       *control;
	BonoboPersistStream *stream;
	GtkWidget	    *minicard;
	GtkWidget           *button;
	GtkWidget           *label;
	GtkWidget           *vbox;

	EMinicardControl    *minicard_control = g_new (EMinicardControl, 1);


	minicard_control->card_list = NULL;
	minicard_control->minicard = NULL;
	minicard_control->label = NULL;

	/* Create the control. */

	minicard = e_minicard_widget_new ();
	gtk_widget_show (minicard);
	minicard_control->minicard = E_MINICARD_WIDGET (minicard);

	/* This is intentionally not shown. */
	label = gtk_label_new ("");
	minicard_control->label = label;

	button = gtk_button_new_with_label(_("Save in addressbook"));
	g_signal_connect (button, "clicked",
			  G_CALLBACK (save_in_addressbook), minicard_control);
	gtk_widget_show (button);

	vbox = gtk_vbox_new(FALSE, 0);
	gtk_box_pack_start(GTK_BOX(vbox), minicard, TRUE, TRUE, 0);
	gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);
	gtk_box_pack_start(GTK_BOX(vbox), button, FALSE, FALSE, 0);
	gtk_widget_show (vbox);

	control = bonobo_control_new (vbox);

	g_object_weak_ref (G_OBJECT (control), free_struct, minicard_control);

	stream = bonobo_persist_stream_new (pstream_load, pstream_save,
					    pstream_get_content_types,
					    MINICARD_CONTROL_ID,
					    minicard_control);

#if 0
	/* Create the properties. */
	pb = bonobo_property_bag_new (get_prop, set_prop, clock);
	bonobo_control_set_properties (control, pb);

	bonobo_property_bag_add (pb, "running", PROP_RUNNING,
				 BONOBO_ARG_BOOLEAN, NULL,
				 "Whether or not the clock is running", 0);
#endif

	if (stream == NULL) {
		bonobo_object_unref (BONOBO_OBJECT (control));
		return NULL;
	}

	bonobo_object_add_interface (BONOBO_OBJECT (control),
				    BONOBO_OBJECT (stream));

	return control;
}