transit-im/middleware/command_parser/commandParser.js

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

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

  parser = require('./parser');

  module.exports = function(parserObject) {
    var parsedCache, prepareCache;
    if (parserObject == null) {
      parserObject = parser;
    }
    if (parserObject.user) {
      throw "You forgot to call constructor of commandParser middleware";
    }
    parsedCache = null;
    prepareCache = function(handlers) {
      var _this = this;
      parsedCache = {};
      return handlers.filter(function(h) {
        return h.pattern;
      }).forEach(function(h) {
        var parsed;
        parsed = parser.parsePattern(h.pattern, h.handler);
        return parsedCache[parsed.cmd] = parsed;
      });
    };
    return {
      install: function(transit) {
        transit.extendRequest("attrs");
        return function(req, res, next) {
          var args, cb, parsedData, _ref;
          if (!req.data) {
            return next();
          }
          prepareCache(req.handlers);
          parsedData = parser.parseCommand(req.data);
          if (parsedCache[parsedData.cmd]) {
            _ref = parsedCache[parsedData.cmd].collectArgs(parsedData.args), cb = _ref.cb, args = _ref.args;
            req.attr("handler", cb);
            req.attr("attrs", args);
          }
          return next();
        };
      }
    };
  };

}).call(this);