import _extends from 'babel-runtime/helpers/extends';
import _objectWithoutProperties from 'babel-runtime/helpers/objectWithoutProperties';
import React from 'react';
import PropTypes from 'prop-types';
import classNames from 'classnames';
import withStyles from '../styles/withStyles';
import Typography from '../Typography';

export const styles = theme => ({
  root: {
    display: 'flex',
    alignItems: 'center',
    padding: theme.spacing.unit * 2
  },
  avatar: {
    flex: '0 0 auto',
    marginRight: theme.spacing.unit * 2
  },
  action: {
    flex: '0 0 auto',
    alignSelf: 'flex-start',
    marginTop: theme.spacing.unit * -1,
    marginRight: theme.spacing.unit * -2
  },
  content: {
    flex: '1 1 auto'
  },
  title: {},
  subheader: {}
});

function CardHeader(props) {
  const {
    action,
    avatar,
    classes,
    className: classNameProp,
    component: Component,
    subheader,
    title
  } = props,
        other = _objectWithoutProperties(props, ['action', 'avatar', 'classes', 'className', 'component', 'subheader', 'title']);

  return React.createElement(
    Component,
    _extends({ className: classNames(classes.root, classNameProp) }, other),
    avatar && React.createElement(
      'div',
      { className: classes.avatar },
      avatar
    ),
    React.createElement(
      'div',
      { className: classes.content },
      React.createElement(
        Typography,
        {
          variant: avatar ? 'body2' : 'headline',
          component: 'span',
          className: classes.title
        },
        title
      ),
      subheader && React.createElement(
        Typography,
        {
          variant: avatar ? 'body2' : 'body1',
          component: 'span',
          color: 'textSecondary',
          className: classes.subheader
        },
        subheader
      )
    ),
    action && React.createElement(
      'div',
      { className: classes.action },
      action
    )
  );
}

CardHeader.propTypes = process.env.NODE_ENV !== "production" ? {
  /**
   * The action to display in the card header.
   */
  action: PropTypes.node,
  /**
   * The Avatar for the Card Header.
   */
  avatar: PropTypes.node,
  /**
   * Useful to extend the style applied to components.
   */
  classes: PropTypes.object.isRequired,
  /**
   * @ignore
   */
  className: PropTypes.string,
  /**
   * The component used for the root node.
   * Either a string to use a DOM element or a component.
   */
  component: PropTypes.oneOfType([PropTypes.string, PropTypes.func]),
  /**
   * The content of the component.
   */
  subheader: PropTypes.node,
  /**
   * The content of the Card Title.
   */
  title: PropTypes.node
} : {};

CardHeader.defaultProps = {
  component: 'div'
};

export default withStyles(styles, { name: 'MuiCardHeader' })(CardHeader);