text: 'use strict';
  
  var _ = require('lodash');
  var async = require('async');
  var Common = require('./common');
  
  function UtilsController(node) {
    this.node = node;
    this.common = new Common({log: this.node.log});
  }
  
  UtilsController.prototype.estimateFee = function(req, res) {
    var self = this;
    var args = req.query.nbBlocks || '2';
    var nbBlocks = args.split(',');
  
    async.map(nbBlocks, function(n, next) {
      var num = parseInt(n);
      // Insight and Bitcoin JSON-RPC return bitcoin for this value (instead of satoshis).
      self.node.services.vpubd.estimateFee(num, function(err, fee) {
        if (err) {
          return next(err);
        }
        next(null, [num, fee]);
      });
    }, function(err, result) {
      if (err) {
        return self.common.handleErrors(err, res);
      }
      res.jsonp(_.fromPairs(result));
    });
  
  };
  
  module.exports = UtilsController;
  