douban.fm/libs/template.js

a tiny and smart cli player of douban.fm in Node.js

var sys = require('sys');
var color = require('colorful');
var printf = require('sprintf').sprintf;
var exec = require('child_process').exec;
var notifier = new require('node-notifier')();
var utils = require('./utils');
var pkg = require('../package');

exports.logo = logo;
exports.song = song;
exports.share = share;
exports.title = title;
exports.notify = notify;
exports.pause = pause;
exports.listing = listing;
exports.loading = loading;
exports.updateTab = updateTab;

/**
 * [make logo string]
 * @param  {[type]} account [description]
 * @return {[type]}         [description]
 */
function logo(account) {
  return printf(
    '%s %s %s',
    color.yellow('Douban FM'),
    color.grey('v' + pkg.version),
    account ? color.grey('/ ' + account.user_name) : ''
  );
}

/**
 * [notify]
 * @param  {[type]} song [description]
 * @return {[type]}      [description]
 */
function notify(song) {
  notifier.notify({
    title: song.notifyTitle || 'Douban FM',
    open: song.open || pkg.repository.url,
    message: song.text || pkg.name + ' v' + pkg.version
  });
}

/**
 * [Update terminal tab's title]
 * @param  {String} str
 * @bug: 只有一个 tab 的时候这个 func 会导致 tab 页面闪动
 */
function updateTab(str) {
  exec('printf "\\e]1;' + str + '\\a"',
    function(error, stdout, stderr) {
      sys.puts(stdout);
    }
  );
}

/**
 * [Update title's text]
 * @param  {[type]} str
 * @param  {[type]} c  
 * @return {[type]}    
 */
function title(str, c) {
  if (!str) 
    return false;

  // this.updateTab(str);
  return color[c || 'grey'](str);
}

/**
 * [Listing]
 * @return {[type]}
 */
function listing() {
  return this.title('加载列表中，请稍等...')
}

/**
 * [Loading]
 * @return {[type]}
 */
function loading() {
  return this.title('歌曲缓冲中，请稍等..')
}

/**
 * [Pause]
 * @return {[type]}
 */
function pause() {
  this.title('Douban FM');
  return color.yellow('||');
}

/**
 * [song]
 * @param  {[type]} s          [description]
 * @param  {[type]} selectText [description]
 * @param  {[type]} silence    [description]
 * @return {[type]}            [description]
 */
function song(s, selectText, silence) {
  var label = '♫ ';
  var song = s.title ? s : {};
  if (!song.title) {
    song.text = label + '未知曲目...';
    if (!silence) 
      this.notify(song);

    return color.grey(song.text);
  }

  song.text = label + song.title + ' - ' + song.artist;
  song.open = utils.album(song.album);

  if (!silence) 
    this.notify(song);

  return printf(
    '%s %s %s %s %s %s %s %s',
    song.like == 1 ? color.red('♥') : color.grey('♥'),
    color.green(song.title),
    color.grey(song.kbps + 'kbps'),
    color.grey('... ♪ ♫ ♫ ♪ ♫ ♫ ♪ ♪ ...'),
    selectText || color.yellow(song.albumtitle),
    selectText ? '' : color.grey('•'),
    selectText ? '' : song.artist,
    selectText ? '' : color.grey(song.public_time)
  )
}

/**
 * [share]
 * @param  {[type]} song [description]
 * @return {[type]}      [description]
 */
function share(song) {
  var shareText = 
    'http://service.weibo.com/share/share.php?' +
    '&type=button' +
    '&appkey=3374718187' +
    '&ralateUid=1644105187' +
    '&url=' +
    pkg.repository.url +
    '&pic=' +
    (song.picture ? song.picture.replace('mpic', 'lpic') : '') +
    '%7C%7C' +
    'http://ww1.sinaimg.cn/large/61ff0de3tw1ecij3dq80bj20m40ez75u.jpg' +
    '&title=' +
    encodeURIComponent([
      '我正用豆瓣电台命令行版 v' + pkg.version + ' 收听 ',
      song.title ? '「' + song.title + '」' : '本地电台频道',
      song.kbps ? song.kbps + 'kbps' : '',
      song.albumtitle ? song.albumtitle + ' • ' : '',
      song.artist || '',
      song.public_time || '',
      song.album ? utils.album(song.album) : ''
    ].join(' '));

  // windows 下终端 & 需要转义
  if (process.platform === 'win32') 
    shareText = shareText.replace(/&/g, '^&');

  return shareText;
}