/*

 * Copyright (C) 2014, 2016  J. Ali Harlow <ali@juiblex.co.uk>

 *

 * 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 2 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, write to the Free Software Foundation, Inc.,

 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

 */

#include "config.h"

#include <stdlib.h>

#include <string.h>

#include <errno.h>

#include <glib.h>

#include <gio/gio.h>

#include <gtk/gtk.h>

#include <plover/plover.h>

#include <plover/transaction.h>

#include <plover/packageset.h>

#include <plover-gtk/transactionhelper.h>

#include "app-manager.h"

gboolean update(const char *base)

{

    gchar *s;

    const char *prefix;

    GError *error=NULL;

    static PloverTransactionHelper *helper=NULL;

    if (!helper)

    {

	helper=plover_transaction_helper_new(ui);

	plover_transaction_helper_set_base_uri(helper,base);

	prefix=plover_transaction_helper_get_prefix(helper,&error);

	if (error)

	    g_clear_error(&error);

	else

	{

	    s=g_strconcat(prefix?prefix:"","/var/log/update",NULL);

	    plover_log_open(s);

	    g_free(s);

	}

	plover_transaction_helper_set_check_vendor(helper,TRUE);

	g_signal_connect(helper,"close",G_CALLBACK(gtk_main_quit),NULL);

    }

    if (!plover_transaction_helper_get_visible(helper))

    {

	if (!plover_transaction_helper_update(helper,&error))

	{

	    if (g_error_matches(error,PLOVER_GENERAL_ERROR,

	      PLOVER_GENERAL_ERROR_NO_WORK))

	    {

		g_error_free(error);

		error=g_error_new_literal(PLOVER_GENERAL_ERROR,

		  PLOVER_GENERAL_ERROR_NO_WORK,

		  "All relevant updates already applied");

		plover_transaction_helper_set_error(helper,error,

		  "Software update");

	    }

	    else if (g_error_matches(error,PLOVER_GENERAL_ERROR,

	      PLOVER_GENERAL_ERROR_REQUIREMENTS_NOT_MET))

	    {

		g_error_free(error);

		error=g_error_new_literal(PLOVER_GENERAL_ERROR,

		  PLOVER_GENERAL_ERROR_REQUIREMENTS_NOT_MET,

		  "Updates cannot be applied because some earlier updates are "

		  "missing. Installing updates in sequence should resolve this "

		  "problem");

		plover_transaction_helper_set_error(helper,error,

		  "Software update failed");

	    }

	    else

		plover_transaction_helper_set_error(helper,error,

		  "Software update failed");

	    g_error_free(error);

	}

    }

    plover_transaction_helper_present(helper);

    return TRUE;

}