shadcn datetime picker component

datetime-picker.tsx

"use client"
import { CalendarDateTime, isToday as _isToday, } from "@internationalized/date";
import { format } from "date-fns";
import { CalendarIcon, ClockIcon } from "lucide-react";
import { useRef, useState } from "react";
import { DateValue, TimeValue, useDateSegment, useInteractOutside, useLocale, useTimeField } from "react-aria";
import { DateFieldState, DatePickerStateOptions, DateSegment as IDateSegment, useDatePickerState, useTimeFieldState } from "react-stately";
import { cn } from "../lib/utils";
// imports from shadcn/ui
import { Button } from "./ui/button";
import { Popover, PopoverContent, PopoverTrigger } from "./ui/popover";
import { Toggle } from "./ui/toggle";
import { Calendar } from "./ui/calendar";

interface DateSegmentProps {
	segment: IDateSegment;
	state: DateFieldState;
}

function DateSegment({ segment, state }: DateSegmentProps) {
	const ref = useRef(null);

	const {
		segmentProps: { ...segmentProps },
	} = useDateSegment(segment, state, ref);

	return (
		<div
			{...segmentProps}
			ref={ref}
			className={cn(
				"focus:rounded-[2px] focus:bg-accent focus:text-accent-foreground focus:outline-none",
				segment.type !== "literal" ? "px-[1px]" : "",
				segment.isPlaceholder ? "text-muted-foreground" : ""
			)}
		>
			{segment.text}
		</div>
	);
}

function TimeField({ hasTime, onHasTimeChange, disabled, ...props }: {
	disabled: boolean
	hasTime: boolean
	onHasTimeChange: (hasTime: boolean) => void
	value: TimeValue | null
	onChange: (value: TimeValue) => void
}) {
	const ref = useRef<HTMLDivElement | null>(null);

	const { locale } = useLocale();
	const state = useTimeFieldState({
		...props,
		locale,
	});

	useTimeField(props, state, ref);

	return (
		<div className={cn("flex items-center space-x-2 mt-1", disabled ? "cursor-not-allowed opacity-70" : "")}>
			<Toggle
				disabled={disabled}
				pressed={hasTime}
				onPressedChange={onHasTimeChange}
				size="lg"
				variant="outline"
				aria-label="Toggle time"
			>
				<ClockIcon size='16px' />
			</Toggle>
			{hasTime && (
				<div
					ref={ref}
					className="inline-flex h-10 w-full flex-1 rounded-md border border-input bg-transparent px-3 py-2 text-sm ring-offset-background focus-within:ring-2 focus-within:ring-ring focus-within:ring-offset-2 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2"
				>
					{state.segments.map((segment, i) => (
						<DateSegment key={i} segment={segment} state={state} />
					))}
				</div>
			)}
		</div>
	);
}

const dateToCalendarDateTime = (date: Date): CalendarDateTime => {
	const year = date.getFullYear();
	const month = date.getMonth() + 1;  // JavaScript months are 0-based
	const day = date.getDate();
	const hour = date.getHours();
	const minute = date.getMinutes();
	const second = date.getSeconds();
	const millisecond = date.getMilliseconds();

	return new CalendarDateTime(year, month, day, hour, minute, second, millisecond);
}

type DatePickerProps = {
	value?: { date?: Date | null, hasTime: boolean }
	onChange: (value: { date: Date, hasTime: boolean }) => void
	isDisabled?: boolean
}
const DateTimePicker = (props: DatePickerProps) => {
	const contentRef = useRef<HTMLDivElement | null>(null);

	const [open, setOpen] = useState(false);
	const hasTime = props.value?.hasTime || false

	const onChangeWrapper = (value: DateValue, newHasTime?: boolean) => {
		const timeZone = Intl.DateTimeFormat().resolvedOptions().timeZone
		props.onChange({ date: value.toDate(timeZone), hasTime: newHasTime ?? hasTime })
	}
	const datePickerProps: DatePickerStateOptions<CalendarDateTime> = {
		value: props.value?.date ? dateToCalendarDateTime(props.value.date) : undefined,
		onChange: onChangeWrapper,
		isDisabled: props.isDisabled,
		granularity: 'minute',
	}

	const state = useDatePickerState(datePickerProps)
	useInteractOutside({
		ref: contentRef,
		onInteractOutside: (e) => {
			setOpen(false);
		},
	});

	const dateDisplayFormat = hasTime ? 'MM/dd/yyyy hh:mm a' : 'MM/dd/yyyy'

	return (
		<Popover open={open} onOpenChange={setOpen} aria-label='Date Time Picker'>
			<PopoverTrigger asChild>
				<Button
					variant={"outline"}
					className={cn(
						"min-w-[240px] justify-start text-left h-12",
						!props.value && "text-muted-foreground",
					)}
				>
					<CalendarIcon className="mr-2 h-4 w-4" />
					{props.value?.date ? format(props.value.date, dateDisplayFormat) : <span>Pick a date</span>}
				</Button>
			</PopoverTrigger>
			<PopoverContent ref={contentRef} className="w-auto" align="start">
				<Calendar
					mode="single"
					selected={props.value?.date || undefined}
					onSelect={value => onChangeWrapper(dateToCalendarDateTime(value!))}
					initialFocus
					footer={
						<TimeField
							aria-label='Time Picker'
							disabled={!props.value?.date}
							hasTime={hasTime}
							onHasTimeChange={newHasTime =>
								onChangeWrapper(dateToCalendarDateTime(props.value?.date!), newHasTime)
							}
							value={hasTime ? state.timeValue : null}
							onChange={state.setTimeValue}
						/>
					}
				/>
			</PopoverContent>
		</Popover>
	);
};

export { DateTimePicker };

thx! It's great but remains a warning tho:
app-index.js:33 Warning: Function components cannot be given refs. Attempts to access this ref will fail. Did you mean to use React.forwardRef()?

Check the render method of SlotClone.
at DateTimePicker (webpack-internal:///(app-pages-browser)/./src/app/(routes)/(protected)/panel/[[...slug]]/DateTimePicker.tsx:129:69)

This is awesome! thanks for posting! You saved me a lot of time and effort.