Added lobby auto creation

lib/dota-client-version.js

@@ -0,0 +1,55 @@
+'use strict';
+
+const fs = require('fs');
+const os = require('os');
+const path = require('path');
+
+function parseClientVersion(text) {
+  const raw = String(text).match(/^ClientVersion=(\d+)\s*$/m)?.[1] || '';
+  if (!raw) return null;
+  const version = Number(raw);
+  return Number.isInteger(version) && version > 0 && version <= 0xffffffff ? version : null;
+}
+
+function parseVersionOverride(value) {
+  const raw = String(value ?? '').trim();
+  if (!raw) return null;
+  if (!/^\d+$/.test(raw)) throw new Error('DOTA_CLIENT_VERSION must contain digits only.');
+  const version = Number(raw);
+  if (!Number.isInteger(version) || version < 1 || version > 0xffffffff) {
+    throw new Error('DOTA_CLIENT_VERSION must be an unsigned 32-bit integer.');
+  }
+  return version;
+}
+
+function defaultSteamInfFiles() {
+  const home = os.homedir();
+  return [
+    process.env.DOTA_STEAM_INF,
+    path.join(home, '.local', 'share', 'Steam', 'steamapps', 'common', 'dota 2 beta', 'game', 'dota', 'steam.inf'),
+    path.join(home, '.steam', 'steam', 'steamapps', 'common', 'dota 2 beta', 'game', 'dota', 'steam.inf'),
+    path.join('/steam', 'steamapps', 'common', 'dota 2 beta', 'game', 'dota', 'steam.inf'),
+  ].filter(Boolean);
+}
+
+function resolveDotaClientVersion(files = defaultSteamInfFiles()) {
+  const override = parseVersionOverride(process.env.DOTA_CLIENT_VERSION);
+  if (override) return { version: override, source: 'environment' };
+
+  for (const file of [...new Set(files)]) {
+    try {
+      const version = parseClientVersion(fs.readFileSync(file, 'utf8'));
+      if (version) return { version, source: file };
+    } catch (err) {
+      if (err.code !== 'ENOENT' && err.code !== 'ENOTDIR') {
+        console.warn(`warn: could not read Dota client version ${file}: ${err.message}`);
+      }
+    }
+  }
+  return { version: null, source: null };
+}
+
+module.exports = {
+  parseClientVersion,
+  resolveDotaClientVersion,
+};