SCM-Manager/scm-ui/ui-api/src/utils.ts

/*
 * MIT License
 *
 * Copyright (c) 2020-present Cloudogu GmbH and Contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

import { useCallback, useEffect, useRef } from "react";

export const createQueryString = (params: Record<string, string>) => {
  return Object.keys(params)
    .map((k) => encodeURIComponent(k) + "=" + encodeURIComponent(params[k]))
    .join("&");
};

export type CancelablePromise<T> = Promise<T> & { cancel: () => void };

export function makeCancelable<T>(promise: Promise<T>): CancelablePromise<T> {
  let isCanceled = false;
  const wrappedPromise = new Promise<T>((resolve, reject) => {
    promise
      .then((val) => (isCanceled ? reject({ isCanceled }) : resolve(val)))
      .catch((error) => (isCanceled ? reject({ isCanceled }) : reject(error)));
  });
  return Object.assign(wrappedPromise, {
    cancel() {
      isCanceled = true;
    },
  });
}

export function useCancellablePromise() {
  const promises = useRef<Array<CancelablePromise<unknown>>>();

  useEffect(() => {
    promises.current = promises.current || [];
    return function cancel() {
      promises.current?.forEach((p) => p.cancel());
      promises.current = [];
    };
  }, []);

  return useCallback(<T>(p: Promise<T>) => {
    const cPromise = makeCancelable(p);
    promises.current?.push(cPromise);
    return cPromise;
  }, []);
}