// @flow strict

import * as React from 'react';

import classify from '../../utils/classify';
import {UnstyledButton} from '../Button';
import type {IconType} from '../Icon';
import {Icon} from '../Icon';
import {Truncate} from '../Truncate';

import css from './CollapsibleCard.module.css';


export const COLLAPSIBLE_CARD_SEMANTIC = Object.freeze({
  neutral: 'neutral',
  success: 'success',
  information: 'information',
  warning: 'warning',
  danger: 'danger',
});

type ClassNames = $ReadOnly<{
  wrapper?: string,
  title?: string,
  content?: string,
}>;

export type CollapsibleCardSemanticType = $Values<
  typeof COLLAPSIBLE_CARD_SEMANTIC,
>;

export type CollapsibleCardProps = {
  id?: string,
  title: React.Node,
  children: React.Node,
  classNames?: ClassNames,
  isOpen?: boolean,
  headerIconName?: string,
  headerIconType?: IconType,
  semantic?: CollapsibleCardSemanticType,
  onChange?: ?(
    e: SyntheticEvent<HTMLElement>,
    isOpen: boolean,
    id?: string,
  ) => mixed,
};

export type CollapsibleCardActionProps = {
  children: React.Node,
  className?: string,
};

export const CollapsibleCardAction = ({
  children,
  className,
}: CollapsibleCardActionProps): React.Node => (
  <div className={classify(css.actionContainer, className)}>{children}</div>
);

export type CollapsibleCardContentProps = {
  children: React.Node,
  className?: string,
};

export const CollapsibleCardContent = ({
  children,
  className,
}: CollapsibleCardActionProps): React.Node => (
  <div className={classify(css.contentContainer, className)}>{children}</div>
);

export const CollapsibleCard: React$AbstractComponent<
  CollapsibleCardProps,
  HTMLDivElement,
> = React.forwardRef<CollapsibleCardProps, HTMLDivElement>(
  (
    {
      id,
      isOpen,
      onChange,
      classNames,
      title,
      children,
      semantic = 'neutral',
      headerIconName,
      headerIconType = 'solid',
    }: CollapsibleCardProps,
    ref,
  ): React.Node => {
    const [collapsibleCardIsOpen, setCollapsibleCardIsOpen] = React.useState(
      Boolean(isOpen),
    );

    React.useEffect(() => {
      setCollapsibleCardIsOpen(Boolean(isOpen));
    }, [isOpen]);

    return (
      <div
        data-testid="CollapsibleCard"
        className={classify(css.wrapper, classNames?.wrapper)}
        ref={ref}
      >
        <UnstyledButton
          className={classify(
            css.header,
            {
              [css.isOpen]: collapsibleCardIsOpen,
            },
            classNames?.title,
          )}
          onClick={(e) => {
            onChange?.(e, !collapsibleCardIsOpen, id);
            setCollapsibleCardIsOpen(!collapsibleCardIsOpen);
          }}
        >
          <div className={css.headerContent}>
            {!!headerIconName && (
              <div className={classify(css.iconContainer, css[semantic])}>
                <Icon
                  name={headerIconName}
                  type={headerIconType}
                  size="small"
                  className={css[semantic]}
                />
              </div>
            )}

            <Truncate>{title}</Truncate>
          </div>

          {collapsibleCardIsOpen ? (
            <Icon name="chevron-up" color="secondary" size="small" />
          ) : (
            <Icon name="chevron-down" color="secondary" size="small" />
          )}
        </UnstyledButton>
        {collapsibleCardIsOpen && (
          <div className={classify(css.content, classNames?.content)}>
            {children}
          </div>
        )}
      </div>
    );
  },
);