#!/usr/bin/env node var assert = require('assert');

function usage() {

console.log('Usage:');
console.log('  uuid');
console.log('  uuid v1');
console.log('  uuid v3 <name> <namespace uuid>');
console.log('  uuid v4');
console.log('  uuid v5 <name> <namespace uuid>');
console.log('  uuid --help');
console.log('\nNote: <namespace uuid> may be "URL" or "DNS" to use the corresponding UUIDs defined by RFC4122');

}

var args = process.argv.slice(2);

if (args.indexOf('–help') >= 0) {

usage();
process.exit(0);

} var version = args.shift() || 'v4';

switch (version) {

case 'v1':
  var uuidV1 = require('../v1');
  console.log(uuidV1());
  break;

case 'v3':
  var uuidV3 = require('../v3');

  var name = args.shift();
  var namespace = args.shift();
  assert(name != null, 'v3 name not specified');
  assert(namespace != null, 'v3 namespace not specified');

  if (namespace == 'URL') namespace = uuidV3.URL;
  if (namespace == 'DNS') namespace = uuidV3.DNS;

  console.log(uuidV3(name, namespace));
  break;

case 'v4':
  var uuidV4 = require('../v4');
  console.log(uuidV4());
  break;

case 'v5':
  var uuidV5 = require('../v5');

  var name = args.shift();
  var namespace = args.shift();
  assert(name != null, 'v5 name not specified');
  assert(namespace != null, 'v5 namespace not specified');

  if (namespace == 'URL') namespace = uuidV5.URL;
  if (namespace == 'DNS') namespace = uuidV5.DNS;

  console.log(uuidV5(name, namespace));
  break;

default:
  usage();
  process.exit(1);

}