// based on https://github.com/cheton/is-electron
// https://github.com/electron/electron/issues/2288
/* eslint-disable complexity */
export default function isElectron(mockUserAgent?: string): boolean {
  // Renderer process
  if (
    typeof window !== 'undefined' &&
    typeof window.process === 'object' &&
    // @ts-expect-error
    window.process.type === 'renderer'
  ) {
    return true;
  }
  // Main process
  if (
    typeof process !== 'undefined' &&
    typeof process.versions === 'object' &&
    // eslint-disable-next-line
    Boolean(process.versions['electron'])
  ) {
    return true;
  }
  // Detect the user agent when the `nodeIntegration` option is set to true
  const realUserAgent =
    typeof navigator === 'object' && typeof navigator.userAgent === 'string' && navigator.userAgent;
  const userAgent = mockUserAgent || realUserAgent;
  if (userAgent && userAgent.indexOf('Electron') >= 0) {
    return true;
  }
  return false;
}