feat: extract graph-interface into seperate package

app/src/lib/helpers/EventEmitter.ts

@@ -1,69 +0,0 @@
-
-import throttle from './throttle';
-
-
-
-type EventMap = Record<string, unknown>;
-type EventKey<T extends EventMap> = string & keyof T;
-type EventReceiver<T> = (params: T, stuff?: Record<string, unknown>) => unknown;
-
-
-export default class EventEmitter<T extends EventMap = { [key: string]: unknown }> {
-  index = 0;
-  public eventMap: T = {} as T;
-  constructor() {
-  }
-
-  private cbs: { [key: string]: ((data?: unknown) => unknown)[] } = {};
-  private cbsOnce: { [key: string]: ((data?: unknown) => unknown)[] } = {};
-
-  /**
-   * Emit an event with optional data to all the listeners
-   * @param {string} event Name of the event to emit
-   * @param data Data to send along
-   */
-  public emit(event: string, data?: unknown) {
-    if (event in this.cbs) {
-      this.cbs[event].forEach((c) => c(data));
-    }
-    if (event in this.cbsOnce) {
-      this.cbsOnce[event].forEach((c) => c(data));
-      delete this.cbsOnce[event];
-    }
-  }
-
-  public on<K extends EventKey<T>>(event: K, cb: EventReceiver<T[K]>, throttleTimer = 0) {
-    if (throttleTimer > 0) cb = throttle(cb, throttleTimer);
-    const cbs = Object.assign(this.cbs, {
-      [event]: [...(this.cbs[event] || []), cb],
-    });
-    this.cbs = cbs;
-
-    // console.log('New EventEmitter ', this.constructor.name);
-    return () => {
-      cbs[event]?.splice(cbs[event].indexOf(cb), 1);
-    };
-  }
-
-  /**
-   * Register a special listener which only gets called once
-   * @param {string} event Name of the event to listen to
-   * @param {function} cb Listener, gets called everytime the event is emitted
-   * @returns {function} Returns a function which removes the listener when called
-   */
-  public once<K extends EventKey<T>>(event: K, cb: EventReceiver<T[K]>): () => void {
-    this.cbsOnce[event] = [...(this.cbsOnce[event] || []), cb];
-    return () => {
-      this.cbsOnce[event].splice(this.cbsOnce[event].indexOf(cb), 1);
-    };
-  }
-
-  public destroyEventEmitter() {
-    Object.keys(this.cbs).forEach((key) => {
-      delete this.cbs[key];
-    });
-    Object.keys(this.cbsOnce).forEach((key) => delete this.cbsOnce[key]);
-    this.cbs = {};
-    this.cbsOnce = {};
-  }
-}