transit-im/middleware/autohelp/autohelp.js

express-like framework for AIM bots creation (ICQ as well)

// Generated by CoffeeScript 1.6.3
(function() {
  var _;

  _ = require('underscore');

  module.exports = function(options) {
    if (options == null) {
      options = {};
    }
    options = _.defaults(options, {
      greeting: "Here are the commands you may use",
      helpString: "shows this help",
      command: "help",
      property: "autohelp",
      showOnUnknown: true
    });
    return {
      install: function(transit) {
        var handler;
        handler = function(req, res) {
          var help, toDescription;
          toDescription = function(h) {
            var descr;
            descr = [h.pattern];
            if (h.autohelp) {
              descr.push(" - ");
              descr.push(h[options.property]);
            }
            return descr.join("");
          };
          help = [options.greeting + ": "].concat(req.handlers.map(toDescription).filter(_.identity)).join("\n * ");
          return res.sendBack(help);
        };
        transit.receive(options.command, {
          autohelp: options.helpString
        }, handler);
        if (options.showOnUnknown) {
          return transit.receive(handler);
        }
      }
    };
  };

}).call(this);