super-productivity/electron/error-handler-with-frontend-inform.ts

import { getIsAppReady, getWin } from './main-window';
import { IPC } from './shared-with-frontend/ipc-events.const';
import { error, log } from 'electron-log/main';

const WAIT_FOR_WIN_TIMEOUT_DURATION = 4000;

export const errorHandlerWithFrontendInform = (
  e: Error | unknown | string = 'UNDEFINED ERROR',
  additionalLogInfo?: unknown,
): void => {
  const errObj = new Error(e as string);

  if (_isReadyForFrontEndError()) {
    _handleError(e, additionalLogInfo, errObj);
  } else {
    // try again a little later, when window might be ready
    setTimeout(() => {
      _handleError(e, additionalLogInfo, errObj);
    }, WAIT_FOR_WIN_TIMEOUT_DURATION);
  }
};

// eslint-disable-next-line prefer-arrow/prefer-arrow-functions
function _isReadyForFrontEndError(): boolean {
  const mainWin = getWin();
  const isAppReady = getIsAppReady();
  return mainWin && mainWin.webContents && isAppReady;
}

// eslint-disable-next-line prefer-arrow/prefer-arrow-functions
function _handleError(
  e: Error | unknown | string,
  additionalLogInfo: unknown,
  errObj: Error,
): void {
  const mainWin = getWin();
  const stack = errObj.stack;

  console.error('ERR', e);
  log(stack);
  error(e, stack);

  if (additionalLogInfo) {
    log('Additional Error info: ', additionalLogInfo);
  }

  if (_isReadyForFrontEndError()) {
    mainWin.webContents.send(IPC.ERROR, {
      error: e,
      errorStr: e && String(e),
      stack,
    });
  } else {
    error('Electron Error: Frontend not loaded. Could not send error to renderer.');
    throw errObj;
  }
}