import _extends from 'babel-runtime/helpers/extends';
import _objectWithoutProperties from 'babel-runtime/helpers/objectWithoutProperties';
// @inheritedComponent FormGroup

import React from 'react';
import PropTypes from 'prop-types';
import FormGroup from '../Form/FormGroup';
import { find } from '../utils/helpers';

class RadioGroup extends React.Component {
  constructor(...args) {
    var _temp;

    return _temp = super(...args), this.radios = [], this.focus = () => {
      if (!this.radios || !this.radios.length) {
        return;
      }

      const focusRadios = this.radios.filter(n => !n.disabled);

      if (!focusRadios.length) {
        return;
      }

      const selectedRadio = find(focusRadios, n => n.checked);

      if (selectedRadio) {
        selectedRadio.focus();
        return;
      }

      focusRadios[0].focus();
    }, this.handleRadioChange = (event, checked) => {
      if (checked && this.props.onChange) {
        this.props.onChange(event, event.target.value);
      }
    }, _temp;
  }

  render() {
    const _props = this.props,
          { children, name, value, onChange } = _props,
          other = _objectWithoutProperties(_props, ['children', 'name', 'value', 'onChange']);

    this.radios = [];

    return React.createElement(
      FormGroup,
      _extends({ role: 'radiogroup' }, other),
      React.Children.map(children, (child, index) => {
        if (!React.isValidElement(child)) {
          return null;
        }

        return React.cloneElement(child, {
          key: index,
          name,
          inputRef: node => {
            if (node) {
              this.radios.push(node);
            }
          },
          checked: value === child.props.value,
          onChange: this.handleRadioChange
        });
      })
    );
  }
}

RadioGroup.propTypes = process.env.NODE_ENV !== "production" ? {
  /**
   * The content of the component.
   */
  children: PropTypes.node,
  /**
   * The name used to reference the value of the control.
   */
  name: PropTypes.string,
  /**
   * @ignore
   */
  onBlur: PropTypes.func,
  /**
   * Callback fired when a radio button is selected.
   *
   * @param {object} event The event source of the callback
   * @param {string} value The `value` of the selected radio button
   */
  onChange: PropTypes.func,
  /**
   * @ignore
   */
  onKeyDown: PropTypes.func,
  /**
   * Value of the selected radio button.
   */
  value: PropTypes.string
} : {};

export default RadioGroup;