@push.rocks/lik
Version:
Provides a collection of lightweight helpers and utilities for Node.js projects.
209 lines • 12.2 kB
JavaScript
import * as plugins from './classes.plugins.js';
import { FastMap } from './classes.fastmap.js';
export const uni = (prefix = 'uni') => {
return `${prefix}xxxxxxxxxxx`.replace(/[xy]/g, (c) => {
const r = (Math.random() * 16) | 0;
const v = c === 'x' ? r : (r & 0x3) | 0x8;
return v.toString(16);
});
};
/**
* allows keeping track of objects
*/
export class ObjectMap {
/**
* returns a new instance
*/
constructor() {
this.fastMap = new FastMap();
// events
this.eventSubject = new plugins.smartrx.rxjs.Subject();
// nothing here
}
/**
* adds an object mapped to a string
* the string must be unique
*/
addMappedUnique(uniqueKeyArg, objectArg) {
this.fastMap.addToMap(uniqueKeyArg, objectArg);
}
/**
* fastest way to get an object from the map
* @param uniqueKey
*/
getMappedUnique(uniqueKeyArg) {
return this.fastMap.getByKey(uniqueKeyArg);
}
/**
* remove key
* @param functionArg
*/
removeMappedUnique(uniqueKey) {
const object = this.getMappedUnique(uniqueKey);
}
/**
* add object to Objectmap
* returns false if the object is already in the map
* returns true if the object was added successfully
*/
add(objectArg) {
// lets search for an existing unique key
for (const keyArg of this.fastMap.getKeys()) {
const object = this.fastMap.getByKey(keyArg);
if (object === objectArg) {
return keyArg;
}
}
// otherwise lets create it
const uniqueKey = uni('key');
this.addMappedUnique(uniqueKey, objectArg);
this.eventSubject.next({
operation: 'add',
payload: objectArg,
});
return uniqueKey;
}
/**
* like .add but adds an whole array of objects
*/
addArray(objectArrayArg) {
for (const item of objectArrayArg) {
this.add(item);
}
}
/**
* check if object is in Objectmap
*/
checkForObject(objectArg) {
return !!this.getKeyForObject(objectArg);
}
/**
* get key for object
* @param findFunction
*/
getKeyForObject(objectArg) {
let foundKey = null;
for (const keyArg of this.fastMap.getKeys()) {
if (!foundKey && this.fastMap.getByKey(keyArg) === objectArg) {
foundKey = keyArg;
}
else {
continue;
}
}
return foundKey;
}
/**
* find object
*/
async find(findFunction) {
return this.fastMap.find(findFunction);
}
findSync(findFunction) {
for (const keyArg of this.fastMap.getKeys()) {
if (findFunction(this.fastMap.getByKey(keyArg))) {
return this.getMappedUnique(keyArg);
}
}
}
/**
* finds a specific element and then removes it
*/
async findOneAndRemove(findFunction) {
const foundElement = await this.find(findFunction);
if (foundElement) {
this.remove(foundElement);
}
return foundElement;
}
findOneAndRemoveSync(findFunction) {
const foundElement = this.findSync(findFunction);
if (foundElement) {
this.remove(foundElement);
}
return foundElement;
}
/**
* run function for each item in Objectmap
*/
async forEach(functionArg) {
for (const keyArg of this.fastMap.getKeys()) {
await functionArg(this.fastMap.getByKey(keyArg));
}
}
/**
* gets an object in the Observablemap and removes it, so it can't be retrieved again
*/
getOneAndRemove() {
const keys = this.fastMap.getKeys();
if (keys.length === 0) {
return null;
}
else {
const keyToUse = keys[0];
const removedItem = this.fastMap.removeFromMap(keyToUse);
this.eventSubject.next({
operation: 'remove',
payload: removedItem,
});
return removedItem;
}
}
/**
* returns a cloned array of all the objects currently in the Objectmap
*/
getArray() {
const returnArray = [];
for (const keyArg of this.fastMap.getKeys()) {
returnArray.push(this.fastMap.getByKey(keyArg));
}
return returnArray;
}
/**
* check if Objectmap ist empty
*/
isEmpty() {
return this.fastMap.getKeys().length === 0;
}
/**
* remove object from Objectmap
*/
remove(objectArg) {
if (this.checkForObject(objectArg)) {
const keyArg = this.getKeyForObject(objectArg);
const removedObject = this.fastMap.removeFromMap(keyArg);
this.eventSubject.next({
operation: 'remove',
payload: removedObject,
});
return removedObject;
}
return null;
}
/**
* wipe Objectmap
*/
wipe() {
for (const keyArg of this.fastMap.getKeys()) {
this.fastMap.removeFromMap(keyArg);
}
}
/**
* returns a new Objectmap that includes
*/
concat(objectMapArg) {
const concattedObjectMap = new ObjectMap();
concattedObjectMap.fastMap.addAllFromOther(this.fastMap);
concattedObjectMap.fastMap.addAllFromOther(objectMapArg.fastMap);
return concattedObjectMap;
}
/**
* tries to merge another Objectmap
* Note: uniqueKeyCollisions will cause overwrite
* @param objectMapArg
*/
addAllFromOther(objectMapArg) {
this.fastMap.addAllFromOther(objectMapArg.fastMap);
}
}
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