133 lines
2.6 KiB
TypeScript
133 lines
2.6 KiB
TypeScript
import * as plugins from './lik.plugins';
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export interface IObjectmapForEachFunction<T> {
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(itemArg: T): void;
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}
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export interface IObjectmapFindFunction<T> {
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(itemArg: T): boolean;
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}
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/**
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* allows keeping track of objects
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*/
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export class Objectmap<T> {
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private objectArray: T[] = [];
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/**
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* returns a new instance
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*/
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constructor() {
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// nothing here
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}
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/**
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* add object to Objectmap
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* returns false if the object is already in the map
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* returns true if the object was added successfully
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*/
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add(objectArg: T): boolean {
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if (this.checkForObject(objectArg)) {
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// the object is already in the objectmap
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return false;
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} else {
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// the object is not yet in the objectmap
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this.objectArray.push(objectArg);
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return true;
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}
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}
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/**
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* like .add but adds an whole array of objects
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*/
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addArray(objectArrayArg: T[]) {
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for (let item of objectArrayArg) {
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this.add(item);
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}
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}
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/**
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* check if object is in Objectmap
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*/
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checkForObject(objectArg: T) {
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return this.objectArray.indexOf(objectArg) !== -1;
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}
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/**
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* find object
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*/
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find(findFunction: IObjectmapFindFunction<T>) {
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let resultArray = this.objectArray.filter(findFunction);
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if (resultArray.length > 0) {
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return resultArray[0];
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} else {
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return null;
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}
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}
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/**
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* finds a specific element and then removes it
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*/
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findOneAndRemove(findFunction: IObjectmapFindFunction<T>): T {
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let foundElement = this.find(findFunction);
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if (foundElement) {
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this.remove(foundElement);
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}
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return foundElement;
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}
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/**
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* run function for each item in Objectmap
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*/
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async forEach(functionArg: IObjectmapForEachFunction<T>) {
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for (let object of this.objectArray) {
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await functionArg(object);
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}
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}
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/**
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* gets an object in the Observablemap and removes it, so it can't be retrieved again
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*/
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getOneAndRemove(): T {
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return this.objectArray.shift();
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}
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/**
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* returns a cloned array of all the objects currently in the Objectmap
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*/
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getArray() {
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return plugins.lodash.cloneDeep(this.objectArray);
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}
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/**
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* check if Objectmap ist empty
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*/
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isEmpty(): boolean {
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if (this.objectArray.length === 0) {
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return true;
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} else {
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return false;
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}
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}
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/**
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* remove object from Objectmap
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*/
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remove(objectArg: T) {
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let replacementArray = [];
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for (let item of this.objectArray) {
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if (item !== objectArg) {
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replacementArray.push(item);
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}
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}
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this.objectArray = replacementArray;
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}
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/**
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* wipe Objectmap
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*/
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wipe() {
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this.objectArray = [];
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}
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}
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