(function() {
  var Declaration, JustifyContent, flexSpec,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  flexSpec = require('./flex-spec');

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

  JustifyContent = (function(superClass) {
    extend(JustifyContent, superClass);

    function JustifyContent() {
      return JustifyContent.__super__.constructor.apply(this, arguments);
    }

    JustifyContent.names = ['justify-content', 'flex-pack', 'box-pack'];

    JustifyContent.oldValues = {
      'flex-end': 'end',
      'flex-start': 'start',
      'space-between': 'justify',
      'space-around': 'distribute'
    };

    JustifyContent.prototype.prefixed = function(prop, prefix) {
      var ref, spec;
      ref = flexSpec(prefix), spec = ref[0], prefix = ref[1];
      if (spec === 2009) {
        return prefix + 'box-pack';
      } else if (spec === 2012) {
        return prefix + 'flex-pack';
      } else {
        return JustifyContent.__super__.prefixed.apply(this, arguments);
      }
    };

    JustifyContent.prototype.normalize = function(prop) {
      return 'justify-content';
    };

    JustifyContent.prototype.set = function(decl, prefix) {
      var spec, value;
      spec = flexSpec(prefix)[0];
      if (spec === 2009 || spec === 2012) {
        value = JustifyContent.oldValues[decl.value] || decl.value;
        decl.value = value;
        if (spec !== 2009 || value !== 'distribute') {
          return JustifyContent.__super__.set.call(this, decl, prefix);
        }
      } else if (spec === 'final') {
        return JustifyContent.__super__.set.apply(this, arguments);
      }
    };

    return JustifyContent;

  })(Declaration);

  module.exports = JustifyContent;

}).call(this);