freeCodeCamp/tools/ui-components/src/form-control/form-control.tsx

import React, { useContext } from 'react';
import { FormContext } from '../form-group/form-group';

import { FormControlFeedback } from './form-control-feedback';
import { FormControlStatic } from './form-control-static';
import { FormControlProps } from './types';

// Uses controlId from <FormGroup> if not explicitly specified.
// type Only relevant if componentClass is 'input'.
let variantClass: string;
const defaultClasses =
  'outline-0 block w-full py-1.5 px-2.5 text-md text-foreground-primary bg-background-primary bg-none rounded-none border-1 border-solid border-background-quaternary shadow-none transition ease-in-out duration-150 focus:border-foreground-tertiary';

const FormControl = ({
  componentClass,
  ...props
}: FormControlProps<'input' | 'textarea'>): JSX.Element => {
  const { controlId } = useContext(FormContext);
  const { id, className } = props;

  const Component = componentClass || 'input';
  if (Component !== 'textarea') variantClass = ' h-8';

  //row and componentClass
  const classes = [className, defaultClasses, variantClass].join(' ');

  return <Component id={id || controlId} className={classes} {...props} />;
};

FormControl.Feedback = FormControlFeedback;
FormControl.Static = FormControlStatic;

export { FormControl };