feat: Automatically fetch latest tgtg version on startup

lib/toogoodtogo-api.js

@@ -3,12 +3,16 @@ import got from "got";
 import { CookieJar } from "tough-cookie";
 import { config } from "./config.js";
 
+let tgtgVersion = "24.12.0";
+
+await refreshLatestTgtgVersion();
+
 const api = got.extend({
   cookieJar: new CookieJar(),
   prefixUrl: "https://apptoogoodtogo.com/api/",
   headers: _.defaults(config.get("api.headers"), {
     "User-Agent":
-      "TGTG/24.6.1 Dalvik/2.1.0 (Linux; Android 12; SM-G920V Build/MMB29K)",
+      `TGTG/${tgtgVersion} Dalvik/2.1.0 (Linux; Android 12; SM-G920V Build/MMB29K)`,
     "Content-Type": "application/json; charset=utf-8",
     Accept: "application/json",
     "Accept-Language": "en-US",
@@ -22,6 +26,7 @@ const api = got.extend({
     statusCodes: [401, 403, 408, 413, 429, 500, 502, 503, 504, 521, 522, 524],
   },
 });
+
 export function authByEmail() {
   const credentials = config.get("api.credentials");
 
@@ -103,3 +108,30 @@ function updateSession(token) {
   config.set("api.session.accessToken", token.access_token);
   return token;
 }
+
+async function refreshLatestTgtgVersion() {
+  try {
+    const gplayResponse = await got.get("https://play.google.com/store/apps/details?id=com.app.tgtg", {
+      resolveBodyOnly: true
+    })
+    const candidateVersions = [];
+    const matchesInitDataCallback = gplayResponse.matchAll(
+      /<script class=\"\S+\" nonce=\"\S+\">AF_initDataCallback\((.*?)\);/g,
+    );
+    for (const match of matchesInitDataCallback) {
+      const matchesVersion = match[1].matchAll(/(\d+\.\d+\.\d+)/g);
+      for (const match of matchesVersion) {
+        candidateVersions.push(match[1])
+      }
+    }
+    tgtgVersion = candidateVersions.reduce((a, b) =>
+      0 < a.localeCompare(b, undefined, { numeric: true, sensitivity: 'base' })
+        ? a
+        : b
+    )
+  } catch (error) {
+    console.log(
+      `Error while retrieving latest version of TGTG on Google Play page: \n${error}`
+    )
+  }
+}