'use strict';

function _defaults(obj, defaults) { var keys = Object.getOwnPropertyNames(defaults); for (var i = 0; i < keys.length; i++) { var key = keys[i]; var value = Object.getOwnPropertyDescriptor(defaults, key); if (value && value.configurable && obj[key] === undefined) { Object.defineProperty(obj, key, value); } } return 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) : _defaults(subClass, superClass); }

var Declaration = require('../declaration');
var utils = require('../utils');

var Appearance = function (_Declaration) {
  _inherits(Appearance, _Declaration);

  function Appearance(name, prefixes, all) {
    _classCallCheck(this, Appearance);

    var _this = _possibleConstructorReturn(this, _Declaration.call(this, name, prefixes, all));

    if (_this.prefixes) {
      _this.prefixes = utils.uniq(_this.prefixes.map(function (i) {
        if (i === '-ms-') {
          return '-webkit-';
        } else {
          return i;
        }
      }));
    }
    return _this;
  }

  return Appearance;
}(Declaration);

Object.defineProperty(Appearance, 'names', {
  enumerable: true,
  writable: true,
  value: ['appearance']
});


module.exports = Appearance;