content: import React from 'react';
  import PropTypes from 'prop-types';
  import classNames from 'classnames';
  
  export default class ColumnHeader extends React.PureComponent {
  
    static propTypes = {
      icon: PropTypes.string,
      type: PropTypes.string,
      active: PropTypes.bool,
      onClick: PropTypes.func,
      columnHeaderId: PropTypes.string,
    };
  
    handleClick = () => {
      this.props.onClick();
    }
  
    render () {
      const { icon, type, active, columnHeaderId } = this.props;
      let iconElement = '';
  
      if (icon) {
        iconElement = <i className={`fa fa-fw fa-${icon} column-header__icon`} />;
      }
  
      return (
        <h1 className={classNames('column-header', { active })} id={columnHeaderId || null}>
          <button onClick={this.handleClick}>
            {iconElement}
            {type}
          </button>
        </h1>
      );
    }
  
  }
  