/**
 * The browser for gates that drive an installed Chrome. These gates were
 * written against macOS Google Chrome, which Windows and Linux do not have.
 */
import { existsSync } from 'node:fs';

export const MACOS_CHROME =
  '/Applications/Google Chrome.app/Contents/MacOS/Google Chrome';

/**
 * PUPPETEER_EXECUTABLE_PATH when set, then macOS Google Chrome when it is
 * installed. Otherwise undefined, so Puppeteer launches the browser it manages.
 */
export function chromeExecutablePath({
  env = process.env,
  exists = existsSync,
} = {}) {
  if (env.PUPPETEER_EXECUTABLE_PATH) return env.PUPPETEER_EXECUTABLE_PATH;
  return exists(MACOS_CHROME) ? MACOS_CHROME : undefined;
}