masto-fe-archos/app/javascript/mastodon/features/onboarding/components/progress_indicator.jsx

import PropTypes from "prop-types";
import { Fragment } from "react";

import classNames from "classnames";

import { Check } from "mastodon/components/check";

const ProgressIndicator = ({ steps, completed }) => (
  <div className='onboarding__progress-indicator'>
    {(new Array(steps)).fill().map((_, i) => (
      <Fragment key={i}>
        {i > 0 && <div className={classNames("onboarding__progress-indicator__line", { active: completed > i })} />}

        <div className={classNames("onboarding__progress-indicator__step", { active: completed > i })}>
          {completed > i && <Check />}
        </div>
      </Fragment>
    ))}
  </div>
);

ProgressIndicator.propTypes = {
  steps: PropTypes.number.isRequired,
  completed: PropTypes.number,
};

export default ProgressIndicator;