datevisibilityinput.tsx

import React, { useEffect, useState } from "react";
import "./datevisibilityinput.css";

type DateVisibilityInputProps = {
    date?: string; // YYYY-MM-DD
    onDateChange: (date?: string) => void;
};

function DateVisibilityInput({ date, onDateChange }: DateVisibilityInputProps) {
    const isDate = (date?: string): boolean => {
        if (!date || date.length !== 10) {
            return false;
        }

        // Format: YYYY-MM-DD
        // Try to convert to date and trigger onChange
        const splits: string[] = date.split("-", 3);
        if (splits.length != 3) {
            return false;
        }

        const year = parseInt(splits[0]);
        const month = parseInt(splits[1]);
        const day = parseInt(splits[2]);

        if (isNaN(day) || isNaN(month) || isNaN(year)) {
            return false;
        }

        return true;
    };

    const dateToString = (date: Date): string => {
        return (
            date.getFullYear() +
            "-" +
            (date.getMonth() + 1).toString().padStart(2, "0") +
            "-" +
            date.getDate().toString().padStart(2, "0")
        );
    };

    const initialEditedDate = () => {
        return isDate(date) ? date : dateToString(new Date());
    };

    const [editedDate, setEditedDate] = useState<string>(initialEditedDate());
    const [alwaysVisible, setAlwaysVisible] = useState<boolean>(!isDate(date));

    useEffect(() => {
        setEditedDate(initialEditedDate());
        setAlwaysVisible(!isDate(date));
    }, [date]);

    const updateVisibilityState = (visible: boolean) => {
        setAlwaysVisible(visible);

        if (alwaysVisible) {
            onDateChange(undefined);
        } else {
            onDateChange(editedDate);
        }
    };

    const handleDateChange = (date?: string) => {
        if (isDate(date)) {
            setEditedDate(date);
            updateVisibilityState(false);
        } else {
            updateVisibilityState(true);
        }
    };

    return (
        <div className="date-input">
            <input
                id="date-checkbox"
                type={"checkbox"}
                checked={alwaysVisible}
                onChange={(e) => updateVisibilityState(e.target.checked)}
            />
            <label htmlFor="date-checkbox">Always visible</label>
            {!alwaysVisible && (
                <input
                    type={"date"}
                    value={editedDate}
                    onChange={(e) => handleDateChange(e.target.value)}
                />
            )}
        </div>
    );
}

export default DateVisibilityInput;