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* Copyright (c) 2015, Salesforce.com, Inc.
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“use strict”; var pubsuffix = require('./pubsuffix-psl');

// Gives the permutation of all possible domainMatch()es of a given domain. The // array is in shortest-to-longest order. Handy for indexing. function permuteDomain (domain) {

var pubSuf = pubsuffix.getPublicSuffix(domain);
if (!pubSuf) {
  return null;
}
if (pubSuf == domain) {
  return [domain];
}

var prefix = domain.slice(0, -(pubSuf.length + 1)); // ".example.com"
var parts = prefix.split('.').reverse();
var cur = pubSuf;
var permutations = [cur];
while (parts.length) {
  cur = parts.shift() + '.' + cur;
  permutations.push(cur);
}
return permutations;

}

exports.permuteDomain = permuteDomain;