use lowdb for data/epic-games.json

epic-games.js

@@ -1,6 +1,6 @@
 import { chromium } from 'playwright'; // stealth plugin needs no outdated playwright-extra
 import path from 'path';
-import { dirs, stealth } from './util.js';
+import { dirs, jsonDb, datetime, stealth } from './util.js';
 
 const debug = process.env.PWDEBUG == '1'; // runs non-headless and opens https://playwright.dev/docs/inspector
 
@@ -10,6 +10,15 @@ const TIMEOUT = 20 * 1000; // 20s, default is 30s
 const SCREEN_WIDTH = Number(process.env.SCREEN_WIDTH) - 80 || 1280;
 const SCREEN_HEIGHT = Number(process.env.SCREEN_HEIGHT) || 1280;
 
+const db = await jsonDb('epic-games.json');
+db.data ||= { claimed: [], runs: [] };
+const run = {
+  startTime: datetime(),
+  endTime: null,
+  n: null, // unclaimed games at beginning
+  c: 0,    // claimed games at end
+};
+
 // https://playwright.dev/docs/auth#multi-factor-authentication
 const context = await chromium.launchPersistentContext(dirs.browser, {
   // chrome will not work in linux arm64, only chromium
@@ -32,11 +41,13 @@ await stealth(context);
 if (!debug) context.setDefaultTimeout(TIMEOUT);
 
 const page = context.pages().length ? context.pages()[0] : await context.newPage(); // should always exist
-console.log('userAgent:', await page.evaluate(() => navigator.userAgent));
+console.debug('userAgent:', await page.evaluate(() => navigator.userAgent));
-await page.goto(URL_CLAIM, { waitUntil: 'domcontentloaded' }); // default 'load' takes forever
+
-// Accept cookies to get rid of banner to save space on screen. Will only appear for a fresh context, so we don't await, but let it time out if it does not exist and catch the exception. clickIfExists by checking selector's count > 0 did not work.
+try {
-page.click('button:has-text("Accept All Cookies")').catch(_ => {}); // _ => console.info('Cookies already accepted')
+  await page.goto(URL_CLAIM, { waitUntil: 'domcontentloaded' }); // default 'load' takes forever
-while (await page.locator('a[role="button"]:has-text("Sign In")').count() > 0) { // TODO also check alternative for signed-in state
+  // Accept cookies to get rid of banner to save space on screen. Will only appear for a fresh context, so we don't await, but let it time out if it does not exist and catch the exception. clickIfExists by checking selector's count > 0 did not work.
+  page.click('button:has-text("Accept All Cookies")').catch(_ => {}); // _ => console.info('Cookies already accepted')
+  while (await page.locator('a[role="button"]:has-text("Sign In")').count() > 0) { // TODO also check alternative for signed-in state
     console.error("Not signed in anymore. Please login and then navigate to the 'Free Games' page. If using docker, open http://localhost:6080");
     context.setDefaultTimeout(0); // give user time to log in without timeout
     await page.goto(URL_LOGIN, { waitUntil: 'domcontentloaded' });
@@ -44,15 +55,15 @@ while (await page.locator('a[role="button"]:has-text("Sign In")').count() > 0) {
     await page.waitForNavigation({ url: URL_CLAIM });
     context.setDefaultTimeout(TIMEOUT);
     // process.exit(1);
-}
+  }
-console.log('Signed in.');
+  console.log('Signed in.');
-// click on each banner with 'Free Now'. TODO just extract the URLs and go to them in the loop
+  // click on each banner with 'Free Now'. TODO just extract the URLs and go to them in the loop
-const game_sel = 'a:has-text("Free Now")';
+  const game_sel = 'a:has-text("Free Now")';
-await page.waitForSelector(game_sel);
+  await page.waitForSelector(game_sel);
-// const games = await page.$$(game_sel); // 'Element is not attached to the DOM' after navigation; had `for (const game of games) { await game.click(); ... }
+  // const games = await page.$$(game_sel); // 'Element is not attached to the DOM' after navigation; had `for (const game of games) { await game.click(); ... }
-const n = await page.locator(game_sel).count();
+  const n = run.n = await page.locator(game_sel).count();
-console.log('Number of free games:', n);
+  console.log('Number of free games:', n);
-for (let i = 1; i <= n; i++) {
+  for (let i = 1; i <= n; i++) {
     await page.click(`:nth-match(${game_sel}, ${i})`);
     const title = await page.locator('h1').first().innerText();
     console.log('Current free game:', title);
@@ -90,10 +101,12 @@ for (let i = 1; i <= n; i++) {
         // }
         // await page.waitForTimeout(3000);
         await page.waitForSelector('text=Thank you for buying'); // EU: wait, non-EU: wait again
+        db.data.claimed.push({title, time: datetime()});
+        run.c++;
         console.log('Claimed successfully!');
       } catch (e) {
         console.log(e);
-      const p = path.resolve(dirs.screenshots, 'epic-games', `${new Date().toISOString()}.png`);
+        const p = path.resolve(dirs.screenshots, 'epic-games', `${datetime()}.png`);
         await page.screenshot({ path: p, fullPage: true });
         console.info('Saved a screenshot of hcaptcha challenge to', p);
         console.error('Got hcaptcha challenge. To avoid it, get a link from https://www.hcaptcha.com/accessibility'); // TODO save this link in config and visit it daily to set accessibility cookie to avoid captcha challenge?
@@ -104,6 +117,16 @@ for (let i = 1; i <= n; i++) {
       await page.goto(URL_CLAIM, { waitUntil: 'domcontentloaded' });
       await page.waitForSelector(game_sel);
     }
+  }
+} catch(error) {
+  console.error(error);
+  run.error = error.toString();
+} finally {
+  // write out json db
+  run.endTime = datetime();
+  db.data.runs.push(run);
+  await db.write();
+
+  // await context.waitForEvent("close");
+  await context.close();
 }
-// await context.waitForEvent("close");
-await context.close();