import * as React from 'react';
import { css } from '@patternfly/react-styles';
import styles from '@patternfly/react-styles/css/components/Card/card';
import { CardContext } from './Card';
import { Button } from '../Button';
import AngleRightIcon from '@patternfly/react-icons/dist/js/icons/angle-right-icon';

export interface CardHeaderProps extends React.HTMLProps<HTMLDivElement> {
  /** Content rendered inside the CardHeader */
  children?: React.ReactNode;
  /** Additional classes added to the CardHeader */
  className?: string;
  /** ID of the card header. */
  id?: string;
  /** Callback expandable card */
  onExpand?: (event: React.MouseEvent, id: string) => void;
  /** Additional props for expandable toggle button */
  toggleButtonProps?: any;
  /** Whether to right-align expandable toggle button */
  isToggleRightAligned?: boolean;
}

export const CardHeader: React.FunctionComponent<CardHeaderProps> = ({
  children = null,
  className = '',
  id,
  onExpand,
  toggleButtonProps,
  isToggleRightAligned,
  ...props
}: CardHeaderProps) => (
  <CardContext.Consumer>
    {({ cardId }) => {
      const cardHeaderToggle = (
        <div className={css(styles.cardHeaderToggle)}>
          <Button
            variant="plain"
            type="button"
            onClick={evt => {
              onExpand(evt, cardId);
            }}
            {...toggleButtonProps}
          >
            <span className={css(styles.cardHeaderToggleIcon)}>
              <AngleRightIcon aria-hidden="true" />
            </span>
          </Button>
        </div>
      );

      return (
        <div
          className={css(styles.cardHeader, isToggleRightAligned && styles.modifiers.toggleRight, className)}
          id={id}
          {...props}
        >
          {onExpand && !isToggleRightAligned && cardHeaderToggle}
          {children}
          {onExpand && isToggleRightAligned && cardHeaderToggle}
        </div>
      );
    }}
  </CardContext.Consumer>
);
CardHeader.displayName = 'CardHeader';
