Input OTP

npx shadcn@latest add https://cupertino-ui.baltoon.jp/r/input-otp.json

"use client";

import * as React from "react";
import { OTPInput, OTPInputContext } from "input-otp";
import { MinusIcon } from "lucide-react";

import { cn } from "@/lib/utils";

/**
 * iOS verification-code entry: square inset cells with a blinking
 * caret, like SMS one-time-code fields.
 */
function InputOTP({
  className,
  containerClassName,
  ...props
}: React.ComponentProps<typeof OTPInput> & {
  containerClassName?: string;
}) {
  return (
    <OTPInput
      data-slot="input-otp"
      containerClassName={cn(
        "flex items-center gap-2 has-disabled:opacity-40",
        containerClassName
      )}
      className={cn("disabled:cursor-not-allowed", className)}
      {...props}
    />
  );
}

function InputOTPGroup({ className, ...props }: React.ComponentProps<"div">) {
  return (
    <div
      data-slot="input-otp-group"
      className={cn("flex items-center gap-1.5", className)}
      {...props}
    />
  );
}

function InputOTPSlot({
  index,
  className,
  ...props
}: React.ComponentProps<"div"> & { index: number }) {
  const inputOTPContext = React.useContext(OTPInputContext);
  const { char, hasFakeCaret, isActive } = inputOTPContext?.slots[index] ?? {};

  return (
    <div
      data-slot="input-otp-slot"
      data-active={isActive}
      className={cn(
        "relative flex size-11 items-center justify-center rounded-[var(--radius-field)] bg-fill-tertiary text-title-3 font-normal text-label transition-shadow data-[active=true]:ring-[3px] data-[active=true]:ring-blue/40",
        className
      )}
      {...props}
    >
      {char}
      {hasFakeCaret && (
        <div className="pointer-events-none absolute inset-0 flex items-center justify-center">
          <div className="h-6 w-px bg-blue animate-caret-blink" />
        </div>
      )}
    </div>
  );
}

function InputOTPSeparator({ ...props }: React.ComponentProps<"div">) {
  return (
    <div
      data-slot="input-otp-separator"
      role="separator"
      className="text-tertiary-label"
      {...props}
    >
      <MinusIcon className="size-4" />
    </div>
  );
}

export { InputOTP, InputOTPGroup, InputOTPSeparator, InputOTPSlot };