Carousel with Progress Bar

"use client";

import * as React from "react";

import { Card, CardContent } from "@/registry/ui/card";
import {
  Carousel,
  CarouselContent,
  CarouselItem,
  CarouselNext,
  CarouselPrevious,
  type CarouselApi,
} from "@/registry/ui/carousel";
import { Progress } from "@/registry/ui/progress";

export default function CarouselWithProgress() {
  const [api, setApi] = React.useState<CarouselApi>();
  const [current, setCurrent] = React.useState(0);
  const [count, setCount] = React.useState(0);

  const progress = (current * 100) / count;

  React.useEffect(() => {
    if (!api) {
      return;
    }

    setCount(api.scrollSnapList().length);
    setCurrent(api.selectedScrollSnap() + 1);

    api.on("select", () => {
      setCurrent(api.selectedScrollSnap() + 1);
    });
  }, [api]);

  return (
    <div className="mx-auto max-w-xs py-4">
      <Carousel setApi={setApi} className="w-full max-w-xs">
        <CarouselContent>
          {Array.from({ length: 5 }).map((_, index) => (
            <CarouselItem key={index}>
              <Card>
                <CardContent className="flex aspect-video items-center justify-center p-6">
                  <span className="text-4xl font-semibold">{index + 1}</span>
                </CardContent>
              </Card>
            </CarouselItem>
          ))}
        </CarouselContent>
        <CarouselPrevious className="top-[calc(100%+0.5rem)] translate-y-0 left-0" />
        <CarouselNext className="top-[calc(100%+0.5rem)] translate-y-0 left-2 translate-x-full" />
      </Carousel>
      <Progress value={progress} className="mt-4 w-24 ml-auto" />
    </div>
  );
}