/*
 * SPDX-License-Identifier: AGPL-3.0-only
 * Copyright (c) Camden Dixie O'Brien
 */

#ifndef TIME_MANAGER_H
#define TIME_MANAGER_H

typedef struct {
	unsigned hour;
	unsigned minute;
	unsigned second;
} Time;

typedef struct {
	unsigned year;
	unsigned month;
	unsigned day;
} Date;

typedef enum {
	WEEK_DAY_MONDAY,
	WEEK_DAY_TUESDAY,
	WEEK_DAY_WEDNESDAY,
	WEEK_DAY_THURSDAY,
	WEEK_DAY_FRIDAY,
	WEEK_DAY_SATURDAY,
	WEEK_DAY_SUNDAY,
	WEEK_DAY_COUNT,
} WeekDay;

typedef void (*TimeCallback)(Time now);

/**
 * Initialize the time module.
 */
void time_manager_init(void);

/**
 * Add a callback to be regularly invoked with time updates.
 */
void add_time_callback(TimeCallback callback);

/**
 * Get the current time.
 */
Time get_time(void);

/**
 * Set the time.
 */
void set_time(Time time);

/**
 * Get the current date.
 */
Date get_date(void);

/**
 * Set the date.
 */
void set_date(Date date);

/**
 * Get which day of the week it is.
 */
WeekDay get_week_day(void);

/**
 * Get the name of a day of the week.
 */
const char *week_day_name(WeekDay day);

#endif