'use strict';
/**
* @author schukai GmbH
*/
import {Monster} from '../namespace.js';
import {Base} from './base.js';
import {Observer} from "./observer.js";
import {validateInstance} from "./validate.js";
/**
* With the help of the ObserverList class, observer can be managed.
*
* you can call the method via the monster namespace `new Monster.Types.ObserverList()`.
*
* ```
* <script type="module">
* import {Monster} from 'https://cdn.jsdelivr.net/npm/@schukai/monster@1.6.0/dist/modules/types/observerlist.js';
* console.log(new Monster.Types.ObserverList())
* console.log(new Monster.Types.ObserverList())
* </script>
* ```
*
* Alternatively, you can also integrate this function individually.
*
* ```
* <script type="module">
* import {ObserverList} from 'https://cdn.jsdelivr.net/npm/@schukai/monster@1.6.0/dist/modules/types/observerlist.js';
* console.log(ObserverList())
* console.log(ObserverList())
* </script>
* ```
*
* @since 1.0.0
* @copyright schukai GmbH
* @memberOf Monster/Types
*/
class ObserverList extends Base {
/**
*
*/
constructor() {
super();
this.observers = [];
}
/**
*
* @param {Observer} observer
* @return {ObserverList}
* @throws {TypeError} value is not an instance of Observer
*/
attach(observer) {
validateInstance(observer, Observer)
this.observers.push(observer);
return this;
};
/**
*
* @param {Observer} observer
* @return {ObserverList}
* @throws {TypeError} value is not an instance of Observer
*/
detach(observer) {
validateInstance(observer, Observer)
var i = 0, l = this.observers.length;
for (; i < l; i++) {
if (this.observers[i] === observer) {
this.observers.splice(i, 1);
}
}
return this;
};
/**
*
* @param {Observer} observer
* @return {boolean}
* @throws {TypeError} value is not an instance of Observer
*/
contains(observer) {
validateInstance(observer, Observer)
var i = 0, l = this.observers.length;
for (; i < l; i++) {
if (this.observers[i] === observer) {
return true;
}
}
return false;
};
/**
*
* @param subject
* @return {Promise}
*/
notify(subject) {
let pomises = []
var i = 0, l = this.observers.length;
for (; i < l; i++) {
pomises.push(this.observers[i].update(subject));
}
return Promise.all(pomises);
};
}
Monster.assignToNamespace('Monster.Types', ObserverList);
export {Monster, ObserverList}