import Ember from 'ember';

export function isIndeterminate(params) {

    var dates = params[0];

    var decade = [];

    var next = params[1] + 10;

    while(params[1] < next) {

        decade.push(params[1]);

        params[1] ++;

    }

    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);