@ribajs/router/src/services/router.service.ts

Routing extension for Riba.js inspired by Barba.js

import { RouterModuleOptions } from "../types/index.js";
import { HideShowTransition } from "./Transition/HideShowTransition.js";

export class RouterService {
  protected static _options: RouterModuleOptions;
  public static instance?: RouterService;

  public static get options() {
    return this._options;
  }

  protected constructor() {
    /**/
  }

  public static getSingleton() {
    if (this.instance) {
      return this.instance;
    }

    throw new Error(
      `Singleton of RouterService not defined, please call setSingleton first!`,
    );
  }

  public static setSingleton(options: Partial<RouterModuleOptions> = {}) {
    if (this.instance) {
      console.warn(`Singleton of RouterService already defined!`);
      return this.instance;
    }
    options.defaultTransition =
      options.defaultTransition ?? new HideShowTransition();
    options.scrollToAnchorOffset = options.scrollToAnchorOffset ?? 0;
    this._options = options as RouterModuleOptions;
    this.instance = new this();
    return this.instance;
  }
}