#!/usr/bin/env node
// -*- mode: js -*-
// Copyright 2011 Mark Cavage.  All rights reserved.

var fs = require('fs');
var path = require('path');

var dashdash = require('dashdash');

var ldap = require('../lib/index');
var Logger = require('bunyan');


///--- Globals

dashdash.addOptionType({
  name: 'ldap.DN',
  takesArg: true,
  helpArg: 'LDAP_DN',
  parseArg: function (option, optstr, arg) {
    return ldap.parseDN(arg);
  }
});


var opts = [
  {
    names: ['url', 'u'],
    type: 'string',
    help: 'LDAP server URL',
    helpArg: 'URL',
    default: 'ldap://127.0.0.1:389'
  },
  {
    names: ['binddn', 'D'],
    type: 'ldap.DN',
    help: 'Bind DN',
    default: ''
  },
  {
    names: ['password', 'w'],
    type: 'string',
    help: 'Bind password',
    helpArg: 'PASSWD',
    default: ''
  },
  {
    names: ['file', 'f'],
    type: 'string',
    help: 'Input file',
    helpArg: 'FILE'
  },
  {
    names: ['insecure', 'i'],
    type: 'bool',
    env: 'LDAPJS_TLS_INSECURE',
    help: 'Disable SSL certificate verification',
    default: false
  },
  {
    names: ['debug', 'd'],
    type: 'integer',
    help: 'Set debug level <0-2>',
    helpArg: 'LEVEL'
  },
  {
    names: ['help', 'h'],
    type: 'bool',
    help: 'Print this help and exit.'
  }
];
var parser = dashdash.createParser({options: opts});



///--- Helpers

function usage(code, message) {
  var _opts = parser.help();

  var msg = (message ? message + '\n' : '') +
    'usage: ' + path.basename(process.argv[1]) +
    ' <arguments> [JSON]\n' + _opts;

  process.stderr.write(msg + '\n');
  process.exit(code);
}


function perror(err) {
  if (parsed.debug) {
    process.stderr.write(err.stack + '\n');
  } else {
    process.stderr.write(err.message + '\n');
  }
  process.exit(1);
}



///--- Mainline

var logLevel = 'info';
var parsed;

try {
  parsed = parser.parse(process.argv);
  if (parsed.file) {
    parsed.file = JSON.parse(fs.readFileSync(parsed.file, 'utf8'));
    if (!Array.isArray(parsed.file))
      parsed.file = [parsed.file];
  }
} catch (e) {
  usage(1, e.toString());
}

if (parsed.help)
  usage(0);
if (!parsed.file) {
  parsed.file = [];
  parsed._args.forEach(function (a) {
    var o = JSON.parse(a);
    if (Array.isArray(o)) {
      o.forEach(function (i) {
        parsed.file.push(o);
      });
      return;
    }
    parsed.file.push(o);
  });
  if (parsed.file.length === 0)
    parsed.file = null;
}

if (!parsed.file)
  usage(1, 'either -f or stdin must be used for adding objects');

if (parsed.debug)
  logLevel = (parsed.debug > 1 ? 'trace' : 'debug');

var log = new Logger({
    name: 'ldapjs',
    component: 'client',
    stream: process.stderr,
    level: logLevel
});

var client = ldap.createClient({
  url: parsed.url,
  log: log,
  tlsOptions: {
    rejectUnauthorized: !parsed.insecure
  }
});

client.on('error', function (err) {
  perror(err);
});

client.bind(parsed.binddn, parsed.password, function (err, res) {
  if (err)
    perror(err);

  var finished = 0;
  function callback(err) {
    if (err)
      perror(err);

    if (++finished === parsed.file.length)
      client.unbind(function () { return; });
  }

  parsed.file.forEach(function (entry) {
    var dn = entry.dn;
    delete entry.dn;
    client.add(dn, entry, callback);
  });
});