launch-clean.mjs

#!/usr/bin/env node

import { chromium } from "playwright";
import { readFileSync } from "node:fs";
import { once } from "node:events";

async function main() {
  const browser = await chromium.launch({ headless: false });
  try {
    const cookies = await readCookies("cookies.json");
    const context = await browser.newContext({
      storageState: {
        cookies,
      },
    });
    try {
      const page = await context.newPage();
      if (process.argv.length > 2) {
        await page.goto(process.argv[2]);
      }
      await page.bringToFront();
      await once(page, "close");
    } finally {
      await context.close();
    }
  } finally {
    await browser.close();
  }
}

main();

/**
 * @typedef {Object} Cookie;
 * @property {string} name
 * @property {string} value
 * @property {string=} url
 * @property {string=} domain
 * @property {string=} path
 * @property {number=} expires
 * @property {boolean=} httpOnly
 * @property {boolean=} secure
 * @property {"Strict"|"Lax"|"None"=} sameSite
 */

/**
 * @param {string} file
 * @returns {Cookie[]}
 */
function readCookies(file = "cookies.json") {
  try {
    return JSON.parse(readFileSync("cookies.json", "utf8"));
  } catch (e) {
    if (e.code === "ENOENT") {
      console.log("No cookies found");
    } else {
      throw e;
    }
  }
}