shadcn-ui/apps/v4/components/calendar-demo.tsx

"use client"

import * as React from "react"
import { addDays } from "date-fns"
import { type DateRange } from "react-day-picker"

import { Calendar } from "@/registry/new-york-v4/ui/calendar"

export function CalendarDemo() {
  const [date, setDate] = React.useState<Date | undefined>(new Date())
  const [dateRange, setDateRange] = React.useState<DateRange | undefined>({
    from: new Date(new Date().getFullYear(), 0, 12),
    to: addDays(new Date(new Date().getFullYear(), 0, 12), 30),
  })

  return (
    <div className="flex flex-col items-start gap-2 md:flex-row">
      <Calendar
        mode="single"
        selected={date}
        onSelect={setDate}
        className="rounded-md border shadow-sm"
      />
      <Calendar
        mode="range"
        defaultMonth={dateRange?.from}
        selected={dateRange}
        onSelect={setDateRange}
        numberOfMonths={2}
        disabled={(date) => date > new Date() || date < new Date("1900-01-01")}
        className="rounded-md border shadow-sm"
      />
    </div>
  )
}