getChannelList

getChannelList.js

exports.getChannelList = function(client, io, callback) {
  client.keys('channels:*', function(err, channels) {
    try {
      var channelList = [];
      var counter = 0;

      function getFunc(errChannel, channel) {
        var channelHash = {
          name: channel,
          userCount: io.sockets.clients(channel).length
        };

        channelList.unshift(channelHash);
        if (++counter === channels.length)
          return callback(null, channelList);
      });

      for (var i = 0; i < channels.length; i ++) {
        if (!channels[i].match(/^channels:private-[a-f0-9]{32}-[a-f0-9]{32}$/)) {
          client.get(channels[i], getFunc);
        }
      }
    } catch(err) {
      return callback(err);
    }
  });
};