michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: "use strict";
michael@0: 
michael@0: module.metadata = {
michael@0:   "stability": "unstable"
michael@0: };
michael@0: 
michael@0: const { Class } = require('../core/heritage');
michael@0: const { MatchPattern } = require('./match-pattern');
michael@0: const { on, off, emit } = require('../event/core');
michael@0: const { method } = require('../lang/functional');
michael@0: const objectUtil = require('./object');
michael@0: const { EventTarget } = require('../event/target');
michael@0: const { List, addListItem, removeListItem } = require('./list');
michael@0: 
michael@0: // Should deprecate usage of EventEmitter/compose
michael@0: const Rules = Class({
michael@0:   implements: [
michael@0:     EventTarget,
michael@0:     List
michael@0:   ],
michael@0:   add: function(...rules) [].concat(rules).forEach(function onAdd(rule) {
michael@0:     addListItem(this, rule);
michael@0:     emit(this, 'add', rule);
michael@0:   }, this),
michael@0:   remove: function(...rules) [].concat(rules).forEach(function onRemove(rule) {
michael@0:     removeListItem(this, rule);
michael@0:     emit(this, 'remove', rule);
michael@0:   }, this),
michael@0:   get: function(rule) {
michael@0:     let found = false;
michael@0:     for (let i in this) if (this[i] === rule) found = true;
michael@0:     return found;
michael@0:   },
michael@0:   // Returns true if uri matches atleast one stored rule
michael@0:   matchesAny: function(uri) !!filterMatches(this, uri).length,
michael@0:   toString: function() '[object Rules]'
michael@0: });
michael@0: exports.Rules = Rules;
michael@0: 
michael@0: function filterMatches(instance, uri) {
michael@0:   let matches = [];
michael@0:   for (let i in instance) {
michael@0:     if (new MatchPattern(instance[i]).test(uri)) matches.push(instance[i]);
michael@0:   }
michael@0:   return matches;
michael@0: }