<?php

namespace Cli\Collection;

use Cli\Commands\Command;

class CommandsCollection
{

    /**
     * @var array
     */
    private static $collection = null;

    /**
     * @return array
     */
    private static function collect()
    {
        $dir = getcwd() . '/app/Console/Commands';
        if(file_exists($dir)) {
            foreach (scandir($dir) as $file) {
                if($file == '.' || $file == '..') continue;

                if(endsWith($file, '.php')) {
                    $class =  'App\Console\Commands\\' . str_replace('.php', '', $file);

                    if(!class_exists($class)) continue;

                    $executor = app()->make($class);
                    self::$collection[$executor->signature] = $executor;
                }
            }
        }

        return self::$collection;
    }

    /**
     * @param null $name
     * @return array|Command
     */
    public static function get($name = null)
    {
        if(self::$collection == null) {
            self::collect();
        }

        if($name != null) {
            return self::$collection[$name];
        }

        return self::$collection;
    }

}