/*
 * Copyright 2015 (c) Anna Schumaker.
 */
#ifndef OCARINA_CORE_DATE_H
#define OCARINA_CORE_DATE_H

#include <core/file.h>
#include <stdint.h>


struct date {
	union {
		struct {
			uint16_t d_year;
			uint8_t  d_month;
			uint8_t  d_day;
		};
		uint32_t d_stamp;
	};
};


/* Set the date structure. */
void date_set(struct date *, unsigned int, unsigned int, unsigned int);

/* Set the provided date structure to today's date. */
void date_today(struct date *);

/* Read the date from file. */
void date_read(struct file *, struct date *);
void date_read_stamp(struct file *, struct date *);

/* Write the date to file. */
void date_write(struct file *, struct date *);
void date_write_stamp(struct file *, struct date *);

/*
 * Convert the date into a string.
 * This function allocates a new string that MUST be freed with g_free().
 */
gchar *date_string(const struct date *);

/*
 * Compare two dates.
 *
 * if ret < 0: lhs < rhs.
 * if ret = 0: lhs == rhs.
 * if ret > 0: lhs > rhs.
 */
int date_compare(const struct date *, const struct date *);

#endif /* OCARINA_CORE_DATE_H */