'use strict';

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

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

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 _classnames = require('classnames');

var _classnames2 = _interopRequireDefault(_classnames);

var _lodash = require('lodash.omit');

var _lodash2 = _interopRequireDefault(_lodash);

var _utils = require('./utils');

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

function _objectWithoutProperties(obj, keys) { var target = {}; for (var i in obj) { if (keys.indexOf(i) >= 0) continue; if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; target[i] = obj[i]; } return target; }

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 SHOW = 'SHOW';
var SHOWN = 'SHOWN';
var HIDE = 'HIDE';
var HIDDEN = 'HIDDEN';

var propTypes = {
  isOpen: _react.PropTypes.bool,
  className: _react.PropTypes.node,
  tag: _react.PropTypes.oneOfType([_react.PropTypes.func, _react.PropTypes.string]),
  cssModule: _react.PropTypes.object
};

var defaultProps = {
  isOpen: false,
  tag: 'div'
};

var Collapse = function (_Component) {
  _inherits(Collapse, _Component);

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

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

    _this.state = {
      collapse: props.isOpen ? SHOWN : HIDDEN,
      height: props.isOpen ? null : 0
    };
    _this.element = null;
    return _this;
  }

  _createClass(Collapse, [{
    key: 'componentWillReceiveProps',
    value: function componentWillReceiveProps(nextProps) {
      var _this2 = this;

      var willOpen = nextProps.isOpen;
      var collapse = this.state.collapse;

      if (willOpen && collapse === HIDDEN) {
        // will open
        this.setState({ collapse: SHOW }, function () {
          // the height transition will work after class "collapsing" applied
          _this2.setState({ height: _this2.getHeight() });
          _this2.transitionTag = setTimeout(function () {
            _this2.setState({
              collapse: SHOWN,
              height: null
            });
          }, 350);
        });
      } else if (!willOpen && collapse === SHOWN) {
        // will hide
        this.setState({ height: this.getHeight() }, function () {
          _this2.setState({
            collapse: HIDE,
            height: _this2.getHeight()
          }, function () {
            _this2.setState({ height: 0 });
          });
        });

        this.transitionTag = setTimeout(function () {
          _this2.setState({
            collapse: HIDDEN,
            height: null
          });
        }, 350);
      }
      // else: do nothing.
    }
  }, {
    key: 'componentWillUnmount',
    value: function componentWillUnmount() {
      clearTimeout(this.transitionTag);
    }
  }, {
    key: 'getHeight',
    value: function getHeight() {
      return this.element.scrollHeight;
    }
  }, {
    key: 'render',
    value: function render() {
      var _this3 = this;

      var _omit = (0, _lodash2.default)(this.props, ['isOpen']);

      var className = _omit.className;
      var cssModule = _omit.cssModule;
      var Tag = _omit.tag;

      var attributes = _objectWithoutProperties(_omit, ['className', 'cssModule', 'tag']);

      var _state = this.state;
      var collapse = _state.collapse;
      var height = _state.height;

      var collapseClass = void 0;
      switch (collapse) {
        case SHOW:
          collapseClass = 'collapsing';
          break;
        case SHOWN:
          collapseClass = 'collapse active';
          break;
        case HIDE:
          collapseClass = 'collapsing';
          break;
        case HIDDEN:
          collapseClass = 'collapse';
          break;
        default:
          // HIDDEN
          collapseClass = 'collapse';
      }

      var classes = (0, _utils.mapToCssModules)((0, _classnames2.default)(className, collapseClass), cssModule);
      var style = height === null ? null : { height: height };
      return _react2.default.createElement(Tag, _extends({}, attributes, {
        style: _extends({}, attributes.style, style),
        className: classes,
        ref: function ref(c) {
          _this3.element = c;
        }
      }));
    }
  }]);

  return Collapse;
}(_react.Component);

Collapse.propTypes = propTypes;
Collapse.defaultProps = defaultProps;
exports.default = Collapse;