#!/usr/bin/env node

var program = require('commander');

program
  .option('-d, --dev', 'check development dependencies')
  .option('--debug', 'turn on debug statements')
  .parse(process.argv);

if (program.debug) require('debug').enable('component-consoler*,component-flatten*,component-resolver*');

var resolve = require('component-resolver');
var flatten = require('component-flatten');
var utils = require('component-consoler');

resolve(process.cwd(), {
  development: program.dev,
  install: true,
  verbose: true,
}, function (err, tree) {
  if (err) utils.fatal(err);

  var dupes = flatten(tree).duplicates;
  var names = Object.keys(dupes);
  if (!names.length) return utils.log('duplicates', 'no duplicates found!');

  names.forEach(function (name) {
    var deps = dupes[name];
    var versions = Object.keys(deps);
    utils.warn('duplicates', '"' + name + '" has ' + versions.length + ' versions in this build:');
    versions.forEach(function (version) {
      var node = deps[version];
      utils.warn('version', '  ' + version);
      node.dependents.forEach(function (dependent) {
        utils.warn('dependent', '    ' + dependent.canonical);
      })
    })
    console.error();
  });
});