// SPDX-FileCopyrightText: Copyright Orangebot, Inc. and Medplum contributors
// SPDX-License-Identifier: Apache-2.0
/**
* Date/Interval helper functions
* Largely following `date-fns` API design
*/
export type Interval = {
start: Date;
end: Date;
};
// Add the specified number of minutes to the given date.
export function addMinutes(date: Date, minutes: number): Date {
return new Date(date.valueOf() + minutes * 60 * 1000);
}
// Is the given time interval overlapping with another time interval? Adjacent
// intervals do not count as overlapping unless inclusive is set to true.
export function areIntervalsOverlapping(left: Interval, right: Interval, options?: { inclusive: boolean }): boolean {
if (options?.inclusive) {
return left.start <= right.end && right.start <= left.end;
}
return left.start < right.end && right.start < left.end;
}
// Clamps a date to the lower bound with the start of the interval and the
// upper bound with the end of the interval.
// - When the date is less than the start of the interval, the start is returned.
// - When the date is greater than the end of the interval, the end is returned.
// - Otherwise the date is returned.
export function clamp(date: Date, interval: Interval): Date {
if (date.valueOf() < interval.start.valueOf()) {
return interval.start;
}
if (date.valueOf() > interval.end.valueOf()) {
return interval.end;
}
return date;
}
