/* For sorting the entries as per the -o flag.
 * This allows a list of entries to be sorted, 
 * e.g. title-alphabetic, date-reverse, date-forward.
 */

enum SortMode
{
	/* For instance:
	 *   TitleAA, TitleZZ, TitleFF
	 * becomes
	 *   TitleAA, TitleFF, TitleZZ
	 */ 
	TitleAlphabetic;

	/* For instance:
	 *   2023-10-01, 2023-10-05, 2023-10-03
	 * becomes
	 *   2023-10-05, 2023-10-03, 2023-10-01
	 */
	DateReverse;

	/* For instance:
	 *   2023-10-01, 2023-10-05, 2023-10-03
	 * becomes
	 *   2023-10-01, 2023-10-03, 2023-10-05
	 */
	DateForwards;
}

// TODO: write sorting functions.
Entry[] sort_title_alphabetic(Entry[] entries) { return entries; }
Entry[] sort_date_reverse(Entry[] entries) { return entries; }
Entry[] sort_date_forward(Entry[] entries) { return entries; }


Entry[] sort(Entry[] entries, SortMode sort_mode)
{
	switch (sort_mode)
	{
		case SortMode.TitleAlphabetic:
			return sort_title_alphabetic(entries);
		case SortMode.DateReverse:
			return sort_date_reverse(entries);
		case SortMode.DateForward:
			return sort_date_forward(entries);
	}
}