douban.fm/libs/sdk.js

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

var fs = require('fsplus');
var path = require('path');
var Douban = require('douban-sdk');
var douban = new Douban();
var utils = require('./utils');
var errors = require('./errors');

exports.fm = douban.fm;
exports.love = love;
exports.songs = songs;
exports.local = local;
exports.mhz = {
  localMhz: {
    seq_id: -99,
    abbr_en: 'localMhz',
    name: '本地电台',
    channel_id: -99,
    name_en: 'localMhz'
  },
  privateMhz: {
    seq_id: -3,
    abbr_en: "",
    name: "红心兆赫",
    channel_id: -3,
    name_en: ""
  }
};

function songs(params, callback) {
  var local = params && params.local && params.history;

  if (local) 
    return exports.local(params.local, params.history, callback);

  if (params.history) 
    delete params.history;

  var query = {};
  query.qs = params;

  return douban.fm.songs(query, callback);
}

function love(params, callback) {
  params.type = 'r';
  return exports.songs(params, callback);
}

function local(dir, history, callback) {
  fs.readdir(dir, function(err, songs) {
    if (err) 
      return callback(err);

    if (!songs) 
      return callback(new Error(errors.localsongs_notfound));

    var list = [];

    fs.readJSON(history, function(err, history) {
      if (err) 
        return callback(new Error(errors.localsongs_notfound));

      songs.forEach(function(song) {
        if (song.lastIndexOf('.mp3') !== (song.length - 4)) 
          return false;

        // if (!history[utils.sid(song)]) return false;
        var s = history[utils.sid(song)] || {};
        s.url = path.resolve(dir, song);
        list.push(s);
      });

      if (list.length === 0) 
        return callback(new Error(errors.localsongs_notfound));

      list.sort(function(a, b) {
        return Math.random() - 0.5;
      });

      return callback(null, list);
    });
  });
}