// config.js
const path = require("path");
const fs = require("fs");
const nodeRoot = path.dirname(require.main.filename);
const configPath = path.join(nodeRoot, "config.json");

// Default configuration
let config = {
  listen: {
    ip: "0.0.0.0",
    port: 2222,
  },
  http: {
    origins: ["*:*"],
  },
  user: {
    name: null,
    password: null,
  },
  ssh: {
    host: null,
    port: 22,
    term: "xterm-color",
    readyTimeout: 20000,
    keepaliveInterval: 120000,
    keepaliveCountMax: 10,
  },
  terminal: {
    cursorBlink: true,
    scrollback: 10000,
    tabStopWidth: 8,
    bellStyle: "sound",
  },
  header: {
    text: null,
    background: "green",
  },
  session: {
    name: "WebSSH2",
    secret: "mysecret",
  },
  options: {
    challengeButton: true,
    allowreauth: true,
  },
  algorithms: {
    kex: [
      "ecdh-sha2-nistp256",
      "ecdh-sha2-nistp384",
      "ecdh-sha2-nistp521",
      "diffie-hellman-group-exchange-sha256",
      "diffie-hellman-group14-sha1",
    ],
    cipher: [
      "aes128-ctr",
      "aes192-ctr",
      "aes256-ctr",
      "aes128-gcm",
      "aes128-gcm@openssh.com",
      "aes256-gcm",
      "aes256-gcm@openssh.com",
      "aes256-cbc",
    ],
    hmac: ["hmac-sha2-256", "hmac-sha2-512", "hmac-sha1"],
    compress: ["none", "zlib@openssh.com", "zlib"],
  },
  serverlog: {
    client: false,
    server: false,
  },
  accesslog: false,
  verify: false,
};

try {
  if (fs.existsSync(configPath)) {
    console.log("WebSSH2 service reading config from: " + configPath);
    config = require("read-config-ng")(configPath);
  } else {
    console.error(
      "\n\nERROR: Missing config.json for webssh. Current config: " +
        JSON.stringify(config)
    );
    console.error("\n  See config.json.sample for details\n\n");
  }
} catch (err) {
  console.error(
    "\n\nERROR: Missing config.json for webssh. Current config: " +
      JSON.stringify(config)
  );
  console.error("\n  See config.json.sample for details\n\n");
  console.error("ERROR:\n\n  " + err);
}

module.exports = config;