'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

var _styledComponents = require('styled-components');

var _styledComponents2 = _interopRequireDefault(_styledComponents);

var _Accordion = require('./Accordion');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var Container = _styledComponents2.default.div.withConfig({
  displayName: 'AccordionGroup__Container'
})(['& > ', ':not(:first-child) {border-top: none;}'], _Accordion.Container);

var AccordionGroup = function (_React$Component) {
  _inherits(AccordionGroup, _React$Component);

  function AccordionGroup(props) {
    _classCallCheck(this, AccordionGroup);

    var _this = _possibleConstructorReturn(this, (AccordionGroup.__proto__ || Object.getPrototypeOf(AccordionGroup)).call(this, props));

    _this.createToggleHandler = function (key) {
      return function (isAlreadyCollapsed) {
        // current state is closed, it will open
        if (isAlreadyCollapsed) {
          _this.setState({ expandedKey: key });
          // close already open accordion
        } else {
          _this.setState({ expandedKey: null });
        }
      };
    };

    _this.renderAccordion = function (accordion) {
      var expandedKey = _this.state.expandedKey;

      if (!accordion.key) {
        throw new Error('All AccordionGroup accordion children must have a key');
      }
      return _react2.default.cloneElement(accordion, {
        isCollapsed: expandedKey !== accordion.key,
        onToggle: _this.createToggleHandler(accordion.key)
      });
    };

    _this.renderAccordions = function () {
      var children = _this.props.children;

      return _react2.default.Children.map(children, _this.renderAccordion);
    };

    _this.state = {
      expandedKey: '' + props.startExpandedKey
    };
    return _this;
  }

  _createClass(AccordionGroup, [{
    key: 'render',
    value: function render() {
      return _react2.default.createElement(
        Container,
        null,
        this.renderAccordions()
      );
    }
  }]);

  return AccordionGroup;
}(_react2.default.Component);

AccordionGroup.propTypes = {
  children: _propTypes2.default.node.isRequired,
  startExpandedKey: _propTypes2.default.string
};
AccordionGroup.defaultProps = {
  startExpandedKey: null
};


AccordionGroup.usage = '\n# AccordionGroup\n\nCreates a group of Accordions which expand mutually exclusively of each other (only one can be open).\n\nEvery Accordion must have a `key` prop, which must be unique. You can provide the `startExpandedKey` prop with the key you want to start in the expanded state (defaults to the first one).\n\n```\n<AccordionGroup startExpandedKey={1}>\n  <Accordion key={0} />\n  <Accordion key={1} />\n</AccordionGroup>\n```\n';

exports.default = AccordionGroup;