delete_range.go RawHistoryFolder

1package history
2
3import "time"
4
5// DeleteRangeCutoff resolves a delete-range identifier to a cutoff time.
6// The booleans report whether the range means "delete all" and whether the
7// identifier was recognized.
8func DeleteRangeCutoff(rangeID string, now time.Time) (time.Time, bool, bool) {
9	switch rangeID {
10	case "hour":
11		return now.Add(-time.Hour), false, true
12	case "day":
13		return time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, now.Location()), false, true
14	case "week":
15		return now.AddDate(0, 0, -7), false, true
16	case "month":
17		return now.AddDate(0, -1, 0), false, true
18	case "all":
19		return time.Time{}, true, true
20	default:
21		return time.Time{}, false, false
22	}
23}