import React from "react";
import { NavLink, NavLinkProps, To } from "react-router-dom";
import classNames from "classnames";

type Props = {
  to?: To;
  children: React.ReactNode;
  disabled?: boolean;
  className?: string;
} & Omit<NavLinkProps, "to">;

function getURL(to: To): URL {
  if (typeof to !== "string") {
    return getURL(to.pathname ?? "");
  }
  try {
    return new URL(to as string);
  } catch {
    let outurl = `${window.location.origin}${
      to.startsWith("/") ? to : "/" + to
    }`;
    return new URL(outurl);
  }
}

export default function Link({
  to,
  children,
  disabled,
  className,
  style,
  ...props
}: Props) {
  const link =
    to && getURL(to).hostname === window.location.hostname ? (
      <NavLink
        to={getURL(to).pathname}
        style={style}
        className={classNames({ "pointer-events-none": disabled }, className)}
      >
        {children}
      </NavLink>
    ) : (
      <a
        href={disabled ? undefined : (to && getURL(to).origin) || undefined}
        style={
          typeof style === "function"
            ? style({
                isActive: true,
              })
            : style
        }
        aria-disabled={disabled}
        {...props}
      >
        {children}
      </a>
    );
  return <div>{link}</div>;
}
