'use strict';

var sortArrays = require('sort-object-arrays');

module.exports = function(app, base, env) {
  base.onLoad(/(\.eslintrc|\.js(on|hintrc))$/, function(file, next) {
    file.json = JSON.parse(file.content);
    next();
  });

  base.preWrite(/\.js(on|hintrc)$/, function(file, next) {
    if (typeof file.json === 'undefined') {
      next(new Error('json middleware expects `file.json` to be an object'));
      return;
    }

    file.json = sortArrays(file.json);
    file.content = JSON.stringify(file.json, null, 2);
    file.content += '\n';
    next();
  });
};