#!/usr/bin/env node

const path = require('path');
const pkg = require('../package.json');
const fs = require('fs');
const version = pkg.version;
const PeerServer = require('../src').PeerServer;
const opts = require('optimist')
  .usage('Usage: $0')
  .options({
    debug: {
      demand: false,
      alias: 'd',
      description: 'debug',
      default: false
    },
    timeout: {
      demand: false,
      alias: 't',
      description: 'timeout (milliseconds)',
      default: 5000
    },
    ip_limit: {
      demand: false,
      alias: 'i',
      description: 'IP limit',
      default: 5000
    },
    concurrent_limit: {
      demand: false,
      alias: 'c',
      description: 'concurrent limit',
      default: 5000
    },
    key: {
      demand: false,
      alias: 'k',
      description: 'connection key',
      default: 'peerjs'
    },
    sslkey: {
      demand: false,
      description: 'path to SSL key'
    },
    sslcert: {
      demand: false,
      description: 'path to SSL certificate'
    },
    port: {
      demand: true,
      alias: 'p',
      description: 'port'
    },
    path: {
      demand: false,
      description: 'custom path',
      default: '/'
    },
    allow_discovery: {
      demand: false,
      description: 'allow discovery of peers'
    }
  })
  .boolean('allow_discovery')
  .argv;

process.on('uncaughtException', function (e) {
  console.error('Error: ' + e);
});

if (opts.sslkey || opts.sslcert) {
  if (opts.sslkey && opts.sslcert) {
    opts.ssl = {
      key: fs.readFileSync(path.resolve(opts.sslkey)),
      cert: fs.readFileSync(path.resolve(opts.sslcert))
    };

    delete opts.sslkey;
    delete opts.sslcert;
  } else {
    console.error('Warning: PeerServer will not run because either ' +
      'the key or the certificate has not been provided.');
    process.exit(1);
  }
}

const userPath = opts.path;
const server = PeerServer(opts, server => {
  var host = server.address().address;
  var port = server.address().port;

  console.log(
    'Started PeerServer on %s, port: %s, path: %s (v. %s)',
    host, port, userPath || '/', version
  );
});

server.on('connection', client => {
  console.log(`Client connected: ${client.getId()}`);
});

server.on('disconnect', client => {
  console.log(`Client disconnected: ${client.getId()}`);
});