#!/usr/bin/env node
'use strict';

var through = require('through2');
var fuzzer = require('fuzzer');
fuzzer.seed(0);

module.exports = function() {
  return through.obj(function(chunk, env, callback) {
    var json = JSON.parse(chunk.toString());

    json.constants = Object.keys(json.constants).reduce(function(obj, key, index) {
      var value = json.constants[key];
      if (typeof value === 'object' && value.hasOwnProperty('fn')) {
        var mutator = fuzzer.mutate.object(value);
        obj[key] = mutator();
      }
      return obj;
    }, {});

    var data = JSON.stringify(json);
    this.push(data);
    callback();
  });
};

if (!module.parent) process.stdin.pipe(module.exports()).pipe(process.stdout);