/*
 * 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,*database_uri;
    const char *prefix;
    GError *error=NULL;
    static PloverTransactionHelper *helper=NULL;
    if (!helper)
    {
	helper=plover_transaction_helper_new(ui);
	plover_transaction_helper_set_base(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;
}