isTomorrow()

.isTomorrow(): boolean

import { fdu } from "@pyyupsk/fdu";

// Assuming today is 2024-01-15
fdu("2024-01-16").isTomorrow();          // true
fdu("2024-01-16T08:00:00").isTomorrow(); // true (same day, different time)
fdu("2024-01-15").isTomorrow();          // false (today)
fdu("2024-01-17").isTomorrow();          // false (day after tomorrow)

function getEventNotification(eventDate: FduInstance, eventName: string): string | null {
  if (eventDate.isTomorrow()) {
    return `Reminder: "${eventName}" is tomorrow!`;
  }
  return null;
}

const meeting = fdu().add(1, "day");
getEventNotification(meeting, "Team Standup");
// "Reminder: \"Team Standup\" is tomorrow!"

function getDeadlineStatus(deadline: FduInstance): string {
  if (deadline.isBefore(fdu(), "day")) return "overdue";
  if (deadline.isToday()) return "due-today";
  if (deadline.isTomorrow()) return "due-tomorrow";
  return "upcoming";
}

const projectDeadline = fdu().add(1, "day");
getDeadlineStatus(projectDeadline); // "due-tomorrow"

const tasks = [
  { date: fdu(), title: "Today's Task" },
  { date: fdu().add(1, "day"), title: "Tomorrow's Task" },
  { date: fdu().add(2, "day"), title: "Future Task" },
];

const tomorrowsTasks = tasks.filter((t) => t.date.isTomorrow());
// [{ date: ..., title: "Tomorrow's Task" }]

function formatSmartDate(date: FduInstance): string {
  if (date.isYesterday()) return "Yesterday";
  if (date.isToday()) return "Today";
  if (date.isTomorrow()) return "Tomorrow";

  // Within this week
  const daysUntil = date.diff(fdu(), "day");
  if (daysUntil > 0 && daysUntil < 7) {
    return date.format("dddd"); // "Monday", "Tuesday", etc.
  }

  return date.format("MMM D");
}

formatSmartDate(fdu().add(1, "day")); // "Tomorrow"
formatSmartDate(fdu().add(3, "day")); // "Thursday" (example)