denis-sokolov/portent

'use strict';

var fs = require('fs');

var Promise = require('promise');

module.exports = function(directory){
    var path = directory + '/robots.txt';

    return {
        middleware: function(req, res, next){
            if (req.path !== '/robots.txt')
                return next();
            res.sendFile(path);
        },
        paths: function(){
            return Promise.denodeify(fs.readFile)(path)
                .then(function(){
                    return ['robots.txt'];
                })
                .catch(function(){
                    return [];
                });
        }
    };
};