#!/usr/bin/env node

var program = require('commander');

// parse argv

program
  .usage('[query]')
  .option('-o, --owner <string>', 'filter by a GitHub user/organization')
  .option('-k, --keywords <string>', 'filter by a comma-delimited list of keywords')
  .option('-l, --limit <integer>', 'maximum number of results', parseInt)
  .option('-f, --force', 'force redownloading the cache')
  .option('-m, --maxage <seconds>', 'redownload the cache if older than <maxage>'. parseInt)
  .option('-v, --verbose', 'verbose output')
  .option('--debug', 'turn on debug statements')
  .parse(process.argv);

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

var co = require('co');
var utils = require('component-consoler');
var search = co(require('component-search2'));

var cols = process.stdout.columns || 80;

var query = {
  text: program.args.join(' '),
  owner: program.owner,
  limit: program.limit || 5,
  force: program.force,
  maxage: 1000 * (program.maxage || 3600),
  verbose: true,
}

if (program.keywords) {
  var keywords = program.keywords.split(',');
  if (keywords.length) query.keywords = keywords;
}

// whitespace

console.log();

process.on('exit', function(){
  console.log();
});

// search

search(query, function (err, pkgs) {
  if (err) utils.fatal(err);
  if (!pkgs.length) return utils.log('search', 'no matching components found');
  verbose(pkgs);
})

/**
 * Verbose output.
 */

function verbose(pkgs) {
  console.log();
  pkgs.forEach(function(pkg){
    console.log('  \033[36m%s\033[m', pkg.repo.toLowerCase());
    console.log('  url: \033[90mhttps://github.com/%s\033[m', pkg.repo);
    console.log('  desc: \033[90m%s\033[m', description(pkg.description));
    if (program.verbose && pkg.demo) console.log('  demo: \033[90m%s\033[m', pkg.demo);
    if (program.verbose) console.log('  version: \033[90m%s\033[m', pkg.version);
    if (program.verbose) console.log('  license: \033[90m%s\033[m', pkg.license || 'none');
    console.log('  ★ \033[90m%s\033[m', pkg.github.stargazers_count);
    console.log();
  });
  console.log();
}

/**
 * Wrap description `str`.
 */

function description(str) {
  if (!str) return '';
  var space;
  var width = cols - 20;
  for (var i = 0; i < str.length; ++i) {
    if (i && i % width === 0) {
      space = str.indexOf(' ', i);
      str = str.slice(0, space) + '\n ' + str.slice(space);
    }
  }
  return str;
}