/**
 * Checks if current environment is 'development'
 */
export function isDevEnv() {
  return process.env.NODE_ENV === 'development';
}

/**
 * Calls console[type] with provided args
 * Useful to distinguish logs that should be in production
 * @param type - type of console (e.g. log, error)
 * @param args
 */
export function log<T extends keyof Console>(type: T, ...args: Parameters<Console[T]>) {
  const fn = console[type];

  return fn(...args);
}

/**
 * Function that calls console[type] only in dev environment
 * @param type - type of console (e.g. log, error)
 * @param args
 */
export function devLog<T extends keyof Console>(
  type: T,
  ...args: Parameters<Console[T]>
) {
  if (isDevEnv()) {
    log(type, ...args);
  }
}

/**
 * Makes promise cancelable
 * @author istarkov
 */
export function makeCancelable<T = any>(promise: Promise<T>) {
  let hasCanceled = false;

  const wrappedPromise = new Promise<T>((resolve, reject) => {
    promise.then(
      val => (hasCanceled ? reject({ isCanceled: true }) : resolve(val)),
      error => (hasCanceled ? reject({ isCanceled: true }) : reject(error)),
    );
  });

  return {
    promise: wrappedPromise,
    cancel() {
      hasCanceled = true;
    },
  };
}