DMleadgen
46d973904b
Next.js website for Rocky Mountain Vending company featuring: - Product catalog with Stripe integration - Service areas and parts pages - Admin dashboard with Clerk authentication - SEO optimized pages with JSON-LD structured data Co-authored-by: Cursor <cursoragent@cursor.com>
52 lines
1.6 KiB
Text
52 lines
1.6 KiB
Text
import type { DateLib } from "../classes/DateLib.js";
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import type { DayPickerProps } from "../types/index.js";
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/**
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* Returns the next month the user can navigate to, based on the given options.
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*
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* The next month is not always the next calendar month:
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*
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* - If it is after the `calendarEndMonth`, it returns `undefined`.
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* - If paged navigation is enabled, it skips forward by the number of displayed
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* months.
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*
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* @param firstDisplayedMonth The first month currently displayed in the
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* calendar.
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* @param calendarEndMonth The latest month the user can navigate to.
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* @param options Navigation options, including `numberOfMonths` and
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* `pagedNavigation`.
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* @param dateLib The date library to use for date manipulation.
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* @returns The next month, or `undefined` if navigation is not possible.
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*/
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export function getNextMonth(
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firstDisplayedMonth: Date,
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calendarEndMonth: Date | undefined,
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options: Pick<
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DayPickerProps,
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"numberOfMonths" | "pagedNavigation" | "disableNavigation"
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>,
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dateLib: DateLib
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): Date | undefined {
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if (options.disableNavigation) {
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return undefined;
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}
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const { pagedNavigation, numberOfMonths = 1 } = options;
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const { startOfMonth, addMonths, differenceInCalendarMonths } = dateLib;
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const offset = pagedNavigation ? numberOfMonths : 1;
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const month = startOfMonth(firstDisplayedMonth);
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if (!calendarEndMonth) {
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return addMonths(month, offset);
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}
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const monthsDiff = differenceInCalendarMonths(
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calendarEndMonth,
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firstDisplayedMonth
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);
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if (monthsDiff < numberOfMonths) {
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return undefined;
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}
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return addMonths(month, offset);
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}
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