"use strict";

var Minimist = require('minimist');

class Input {
  /**
   * Constructor.
   *
   * @param object process
   */
  constructor(process) {
    this.args = Minimist(process.argv.slice(2))
    this.node = process.argv[0]
    this.script = process.argv[1]
  }

  /**
   * Return the value of the given name argument.
   *
   * @param string name
   * @param mixed default
   *
   * @return mixed
   */
  get(name, defaultValue) {
    if (this.has(name)) {
      return this.args[name]
    }

    if (defaultValue !== undefined) {
      return defaultValue
    }

    return null;
  }

  /**
   * Check the given argument name exists.
   *
   * @param string name
   *
   * @return boolean
   */
  has(name) {
    return this.args.hasOwnProperty(name)
  }

  /**
   * Return if args is empty.
   *
   * @return boolean
   */
  empty() {
    return Object.keys(this.args).length === 1
  }
}

module.exports = Input