#!/usr/bin/env node

var wol  = require('./wake_on_lan')
  , path = require('path')
  , argv = require('minimist')(process.argv.slice(2));
  ;

process.title = path.basename(__filename);

if (argv.h || argv.help) {
  showHelp();
  process.exit(0);
}

if (!argv['_'].length) {
  showHelp();
  process.exit(1);
}

var mac = argv['_'][0];

var options = {};
(argv.a || argv.address) && (options.address = argv.a || argv.address);
(argv.n || argv.num_packets) && (options.num_packets = argv.n || argv.num_packets);
(argv.i || argv.interval) && (options.interval = argv.i || argv.interval);
(argv.p || argv.port) && (options.port = argv.p || argv.port);

console.log('sending magic packet to %s', mac);
console.log('options %j ', options);

wol.wake(mac, options, function(error) {
  if (error) {
    console.log("kaputt: " + error);
  } else {
    console.log('done sending WoL packets');
  }
});


function showHelp () {
  console.log('Usage: ' + process.title + ' [options] MAC');
  console.log('\nOptions:');
  console.log('-a | --address       Broadcast address, ipv4/ipv6, defaults to 255.255.255.255');
  console.log('-n | --num_packets   Number of packets to send, defaults to 3');
  console.log('-i | --interval      Interval between each packet, defaults to 100');
  console.log('-p | --port          UDP port of the target destination, defaults to 9');
  console.log('-h | --help          Show help');
  console.log('\nExamples:');
  console.log('wake 20:DE:20:DE:20:DE');
  console.log('wake -a 192.168.1.255 20-DE-20-DE-20-DE');
  console.log('wake --num_packets 10 --interval 50 -p 9 20DE20DE20DE');
}