Add query hash utility

utility/getQueryHashes.mjs

@@ -0,0 +1,55 @@
+// Adapted for JS from: https://github.com/imink-app/SplatNet3/blob/master/Sources/SplatNet3Helper/SN3Helper.swift
+
+// This utility fetches GraphQL query hashes from the SplatNet 3 web view
+// Usage:
+//   node utility/getQueryHashes.mjs
+
+import _ from 'lodash';
+
+const { fromPairs, isPlainObject, mapValues, sortBy, toPairs } = _;
+
+const baseUrl = 'https://api.lp1.av5ja.srv.nintendo.net';
+const versionRegex = /=.(?<revision>[0-9a-f]{40}).*revision_info_not_set.*=.(?<version>\d+\.\d+\.\d+)-/;
+const hashRegex = /params:\{id:"(?<id>[0-9a-f]{32}|[0-9a-f]{64})",metadata:\{\},name:"(?<name>[a-zA-Z0-9_]+)",/g;
+
+function sortObjectKeys(obj) {
+  if (Array.isArray(obj)) return obj.map(sortObjectKeys);
+  if (!isPlainObject(obj)) return obj;
+  return fromPairs(sortBy(toPairs(mapValues(obj, sortObjectKeys)), 0));
+}
+
+(async () => {
+  // Fetch main HTML and find the script path
+  let html = await (await fetch(baseUrl)).text();
+  let scriptMatch = html.match(/<script[^>]+src="([^"]*static[^"]*)"/);
+  if (!scriptMatch) {
+    console.error('Could not find main.js script in HTML');
+    return;
+  }
+
+  // Fetch the JavaScript file
+  let jsUrl = scriptMatch[1].startsWith('http') ? scriptMatch[1] : baseUrl + scriptMatch[1];
+  let js = await (await fetch(jsUrl)).text();
+
+  // Parse version
+  let versionMatch = versionRegex.exec(js);
+  if (!versionMatch?.groups) {
+    console.error('Could not parse version from JavaScript');
+    return;
+  }
+  let version = `${versionMatch.groups.version}-${versionMatch.groups.revision.substring(0, 8)}`;
+
+  // Parse GraphQL hashes
+  let hashMap = {};
+  let match;
+  while ((match = hashRegex.exec(js)) !== null) {
+    hashMap[match.groups.name] = match.groups.id;
+  }
+
+  let data = sortObjectKeys({
+    graphql: { hash_map: hashMap },
+    version,
+  });
+
+  console.log(JSON.stringify(data, undefined, 2));
+})();