1. Options must be a string that specifies 
   the path to the options file.
2. Options must be an object that specifies the type 
   such as 'parser' followed by additional options for
   that type.

class Optify {
  constructor(options) {
    log.debug(`class: ${Optify.name}`, `process: constructor`);
    this.options = {};
    var settings;
    try {
      if (_.isPlainObject(options) && !_.isEmpty(options))
        this.options = options;
      else if (_.isString(options)) {
        // Normalize the string and if it ends in yml replace it
        options = path.normalize(options.replace('yml', 'yaml'));
        // Load the json or javascript file
        if (/\.json/.test(options) || /\.js/.test(options)) {
          settings = require(options);
          this.options = settings;
        } else if (/\.yaml/.test(options)) {
          // Load yaml
          settings = yaml.safeLoad(fs.readFileSync(options, 'utf8'));
          this.options = settings;
        } else if (/\.toml/.test(options)) {
          // Load toml
          settings = toml.parse(fs.readFileSync(options, 'utf8'));
          this.options = settings;
        } else {
          throw new Error
            ('Oops! Did you forget to add the extension? \n' +
              'The supported extensions are .json, .js, .toml, and .yaml.');
        }
      } else this.options = settings || {};
    } catch (error) {
      log.error(`class: ${Optify.name}`,
        `error: ${error.stack || error.toString()}`);
    }
  }
}

function optify(options) {
  'use strict';
  return new Optify(options).options;
}

export default optify;