#!/usr/bin/env node

const This = require('./this');
const {Command} = require('commander');
const program = new Command();

// Example of subcommands which are implemented as stand-alone executable files.
//
// When `.command()` is invoked with a description argument,
// this tells Commander that you're going to use a stand-alone executable for the subcommand.
//
// Only `install` and `list` are implemented, see pm-install and pm-list.js
class Pm extends This {
  constructor() {
    super();
    this.version = '0.0.1';
  }

  start() {
    // Usage
    const pm = new Pm();
    // Output: Methods of ExampleClass: [ 'methodOne', 'methodTwo' ]
    //         Properties of ExampleClass: [ 'propertyOne', 'propertyTwo', 'version' ] and Version: 1.1.0
    // pm.discovery();

    program
      .name(this.scriptName)
      .version('0.0.1')
      .description('Fake package manager')
      .command('install [name]', 'install one or more packages')
      .alias('i')
      .command('search [query]', 'search with optional query')
      .alias('s')
      .command('update', 'update installed packages', {
        executableFile: 'myUpdateSubCommand',
      })
      .command('list', 'list packages installed', {isDefault: false});

    program.parse();

    // Try the following on macOS or Linux:
    //    ./examples/pm
    //
    // Try the following:
    //    ./pm
    //    ./pm help install
    //    ./pm install -h
    //    ./pm install foo bar baz
    //    ./pm install foo bar baz --force
  }
}

// main
const pm = new Pm();
pm.start();