/* 
 *  Author: Chris Lord <chris@openedhand.com>
 *
 *  Copyright (c) 2007 OpenedHand Ltd - http://www.openedhand.com/
 *
 *  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, 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.
 *
 */

#ifndef JANA_UTILS_H
#define JANA_UTILS_H

#include <time.h>
#include <glib.h>
#include <libjana/jana-event.h>
#include <libjana/jana-time.h>

gboolean jana_utils_time_is_leap_year (guint16 year);

guint8 jana_utils_time_days_in_month (guint16 year, guint8 month);

GDateWeekday jana_utils_time_day_of_week (JanaTime *time);

guint jana_utils_time_day_of_year (JanaTime *time);

GDateWeekday jana_utils_time_set_start_of_week (JanaTime *start);

GDateWeekday jana_utils_time_set_end_of_week (JanaTime *end);

guint jana_utils_time_week_of_year (JanaTime *time,
				    gboolean week_starts_monday);

GDate * jana_utils_time_to_gdate (JanaTime *time);

gchar * jana_utils_strftime (JanaTime *time, const gchar *format);

gint jana_utils_time_compare (JanaTime *time1, JanaTime *time2,
			      gboolean date_only);

JanaTime * jana_utils_time_copy (JanaTime *source, JanaTime *dest);

void jana_utils_time_diff (JanaTime *t1, JanaTime *t2, gint *year, gint *month,
			   gint *day, gint *hours, gint *minutes,
			   glong *seconds);

void jana_utils_time_adjust (JanaTime *time, gint year, gint month, gint day,
			     gint hours, gint minutes, gint seconds);

JanaTime * jana_utils_time_now (JanaTime *time);

gboolean jana_utils_duration_contains (JanaDuration *duration, JanaTime *time);

JanaEvent * jana_utils_event_copy (JanaEvent *source, JanaEvent *dest);

GList * jana_utils_event_get_instances (JanaEvent *event, JanaTime *range_start,
					JanaTime *range_end, glong offset);

void jana_utils_instance_list_free (GList *instances);

gchar * jana_utils_get_local_tzname ();

struct tm jana_utils_time_to_tm (JanaTime *time);

gchar * jana_utils_recurrence_to_string (JanaRecurrence *recur,
					 JanaTime *start);

gboolean jana_utils_recurrence_diff (JanaRecurrence *r1, JanaRecurrence *r2);

const gchar * jana_utils_ab_day (guint day);

#endif /* JANA_UTILS_H */