Cs2-Mapveto/server/src/config.js

import path from 'node:path';
import { fileURLToPath } from 'node:url';
import dotenv from 'dotenv';

const here = path.dirname(fileURLToPath(import.meta.url));
export const SERVER_ROOT = path.resolve(here, '..');
export const REPO_ROOT = path.resolve(SERVER_ROOT, '..');

dotenv.config({ path: path.join(REPO_ROOT, '.env') });

function int(name, fallback) {
  const raw = process.env[name];
  if (raw === undefined || raw === '') return fallback;
  const value = Number.parseInt(raw, 10);
  if (Number.isNaN(value)) throw new Error(`Umgebungsvariable ${name} muss eine Zahl sein (ist: "${raw}")`);
  return value;
}

function bool(name, fallback) {
  const raw = process.env[name];
  if (raw === undefined || raw === '') return fallback;
  return ['1', 'true', 'yes', 'ja', 'on'].includes(raw.toLowerCase());
}

/** Portliste aus Text wie "27015-27020" oder "27016,27018-27019". Leer = keine Ports. */
export function parsePortList(value, label = 'LAN-Ports') {
  if (Array.isArray(value)) value = value.join(',');
  const ports = [];
  for (const part of String(value ?? '').split(',').map((p) => p.trim()).filter(Boolean)) {
    const m = /^(\d+)(?:\s*-\s*(\d+))?$/.exec(part);
    if (!m) throw new Error(`${label}: "${part}" ist kein Port oder Bereich`);
    const from = Number(m[1]);
    const to = Number(m[2] ?? m[1]);
    if (from < 1024 || to > 65535 || to < from || to - from > 100) throw new Error(`${label}: Bereich ${part} ist ungültig`);
    for (let p = from; p <= to; p += 1) if (!ports.includes(p)) ports.push(p);
  }
  return ports;
}

/** Portliste kompakt als Text, z. B. [27015, 27016, 27017] -> "27015-27017". */
export function formatPortList(ports = []) {
  const sorted = [...ports].sort((a, b) => a - b);
  const parts = [];
  for (let i = 0; i < sorted.length; i += 1) {
    let j = i;
    while (j + 1 < sorted.length && sorted[j + 1] === sorted[j] + 1) j += 1;
    parts.push(i === j ? String(sorted[i]) : `${sorted[i]}-${sorted[j]}`);
    i = j;
  }
  return parts.join(',');
}

export function parseDockerHosts(raw) {
  if (!raw) return null;
  let list;
  try {
    list = JSON.parse(raw);
  } catch {
    throw new Error('CS2_DOCKER_HOSTS ist kein gültiges JSON');
  }
  if (!Array.isArray(list) || list.length === 0) throw new Error('CS2_DOCKER_HOSTS braucht mindestens einen Eintrag');
  const names = new Set();
  return list.map((h) => {
    if (!h.name || !h.publicHost) throw new Error('Jeder Docker-Host braucht name und publicHost');
    if (names.has(h.name)) throw new Error(`Docker-Host-Name "${h.name}" kommt doppelt vor`);
    names.add(h.name);
    return {
      name: String(h.name),
      dockerHost: h.dockerHost ?? null,
      publicHost: String(h.publicHost),
      rconHost: h.rconHost ?? h.publicHost,
      portRangeStart: h.portStart == null ? undefined : Number(h.portStart),
      portRangeEnd: h.portEnd == null ? undefined : Number(h.portEnd),
      volume: h.volume ?? undefined,
      lanPorts: h.lanPorts === undefined ? undefined : parsePortList(h.lanPorts, `LAN-Ports von ${h.name}`),
    };
  });
}

function str(name, fallback = '') {
  const raw = process.env[name];
  return raw === undefined || raw === '' ? fallback : raw;
}

export function loadConfig(overrides = {}) {
  const config = {
    port: int('PORT', 3000),
    publicUrl: str('PUBLIC_URL', 'http://localhost:5173').replace(/\/$/, ''),
    // Adresse, unter der der CS2-Server dieses Backend für Live-Logs erreicht (Standard: PUBLIC_URL)
    logReceiverUrl: str('LOG_RECEIVER_URL', str('PUBLIC_URL', 'http://localhost:3000')).replace(/\/$/, ''),
    logDebug: bool('LOG_DEBUG', false),
    // Sekunden nach Map-Ende bis zur nächsten Map bzw. zum Abschluss der Serie; -1 = nur manuell
    autoAdvanceSeconds: int('SERIES_AUTO_ADVANCE_SECONDS', 30),
    databaseFile: path.resolve(REPO_ROOT, str('DATABASE_FILE', 'data/cs2-mapveto.db')),
    mapPoolFile: path.resolve(REPO_ROOT, str('MAP_POOL_FILE', 'server/config/map-pools.json')),
    createMatchPassword: str('CREATE_MATCH_PASSWORD'),
    // Optionaler Schlüssel für die Stream-Übersicht aller Matches (/stream?key=…); leer = offen
    streamKey: str('STREAM_KEY'),
    discordWebhookUrl: str('DISCORD_WEBHOOK_URL'),
    // Passwort für den Admin-Modus (/admin). Leer = Admin-Modus ist aus.
    adminPassword: str('ADMIN_PASSWORD'),
    requireFullTeams: bool('REQUIRE_FULL_TEAMS', false),
    trustProxy: bool('TRUST_PROXY', false),

    serverAdapter: str('SERVER_ADAPTER', 'demo'),
    idleTimeoutMinutes: int('SERVER_IDLE_TIMEOUT_MINUTES', 30),
    maxLifetimeHours: int('SERVER_MAX_LIFETIME_HOURS', 8),
    statusPollSeconds: int('SERVER_STATUS_POLL_SECONDS', 5),
    reaperIntervalSeconds: int('SERVER_REAPER_INTERVAL_SECONDS', 60),
    // Frist pro Veto-Schritt in Sekunden, danach führt das Backend den Schritt automatisch aus. 0 = keine Frist
    vetoStepSeconds: int('VETO_STEP_SECONDS', 30),

    match: {
      tvDelaySeconds: int('CS2_TV_DELAY', 90),
      tvEnabled: bool('CS2_TV_ENABLE', true),
      maxRoundsCompetitive: int('CS2_MAXROUNDS_COMPETITIVE', 24),
      maxRoundsWingman: int('CS2_MAXROUNDS_WINGMAN', 16),
      overtime: bool('CS2_OVERTIME', true),
      extraCommands: str('CS2_EXTRA_COMMANDS')
        .split(';')
        .map((c) => c.trim())
        .filter(Boolean),
    },

    demo: {
      startSeconds: int('DEMO_START_SECONDS', 20),
      failFirstConfigure: bool('DEMO_FAIL_FIRST_CONFIGURE', false),
      // Sekunden pro simulierter Runde nach "Aufwärmphase beenden"
      roundSeconds: int('DEMO_ROUND_SECONDS', 4),
    },

    docker: {
      bin: str('DOCKER_BIN', 'docker'),
      image: str('CS2_DOCKER_IMAGE', 'joedwards32/cs2:latest'),
      host: str('CS2_PUBLIC_HOST'),
      rconHost: str('CS2_RCON_HOST', '127.0.0.1'),
      portRangeStart: int('CS2_PORT_RANGE_START', 27015),
      portRangeEnd: int('CS2_PORT_RANGE_END', 27115),
      gslt: str('CS2_GSLT'),
      volume: str('CS2_DOCKER_VOLUME', 'cs2-mapveto-gamefiles'),
      extraArgs: str('CS2_DOCKER_EXTRA_ARGS'),
      startTimeoutMinutes: int('CS2_START_TIMEOUT_MINUTES', 20),
      // Spielports, die der Steam-Serverbrowser im LAN-Reiter absucht (Steam fragt nur 27015–27020 ab).
      // Diese Ports werden zuerst vergeben, CSTV kommt dann aus dem normalen Portbereich. Leer = aus.
      lanPorts: parsePortList(str('CS2_LAN_PORTS', '27015-27020'), 'CS2_LAN_PORTS'),
      // Abstand des CSTV-Ports zum Spielport, z. B. Spiel 27015 -> CSTV 27115
      tvPortOffset: int('CS2_TV_PORT_OFFSET', 100),
      // Anfang des Servernamens im Serverbrowser, danach folgen die Teamnamen
      serverNamePrefix: str('CS2_SERVERNAME_PREFIX', 'MaxLAN'),
      // Optional: mehrere Docker-Hosts als JSON-Liste, z. B.
      // [{"name":"host1","dockerHost":"ssh://cs2@192.168.178.111","publicHost":"192.168.178.111","portStart":27100,"portEnd":27139}]
      hosts: parseDockerHosts(str('CS2_DOCKER_HOSTS')),
    },

    staticPool: {
      // Format: host:port:rconPasswort[:tvPort], mehrere durch Komma getrennt
      servers: str('CS2_STATIC_SERVERS')
        .split(',')
        .map((s) => s.trim())
        .filter(Boolean)
        .map(parseStaticServer),
    },
  };
  return deepMerge(config, overrides);
}

function parseStaticServer(entry) {
  const parts = entry.split(':');
  if (parts.length < 3) {
    throw new Error(`CS2_STATIC_SERVERS-Eintrag "${entry}" hat nicht das Format host:port:rconPasswort[:tvPort]`);
  }
  const [host, port, ...rest] = parts;
  let tvPort = null;
  // Das Passwort darf Doppelpunkte enthalten; ein abschließender rein numerischer Teil ist der TV-Port.
  if (rest.length > 1 && /^\d+$/.test(rest[rest.length - 1])) tvPort = Number(rest.pop());
  return { host, port: Number(port), rconPassword: rest.join(':'), tvPort: tvPort ?? Number(port) + 5 };
}

function deepMerge(target, source) {
  for (const [key, value] of Object.entries(source)) {
    if (value && typeof value === 'object' && !Array.isArray(value) && typeof target[key] === 'object') {
      deepMerge(target[key], value);
    } else {
      target[key] = value;
    }
  }
  return target;
}