import Ember from 'ember';

import _ from 'lodash';

export function isIndeterminate(params) {

    var dates = params[0];

    if(dates == null) {

        return false;

    }

    var decade = _.range(params[1], params[1] + 10);

    var filter = decade.filter(function(date){ return dates.indexOf(date) > -1; });

    if(filter.length !== decade.length && filter.length) {

        return true;

    }

    return false;

}

export default Ember.Helper.helper(isIndeterminate);