<?php

namespace App\Console;

use App\Commands\HelloWorld;
use Illuminate\Console\Scheduling\Schedule;
use Laravel\Lumen\Console\Kernel as ConsoleKernel;

class Kernel extends ConsoleKernel
{
    /**
     * Define the application's command schedule.
     *
     * @param \Illuminate\Console\Scheduling\Schedule $schedule
     * @return void
     */
    protected function schedule(Schedule $schedule)
    {
        //
    }

    private function extractClass($file)
    {
        $fp = fopen($file, 'r');
        $class = $namespace = $buffer = '';
        $i = 0;
        while (!$class) {
            if (feof($fp)) break;

            $buffer .= fread($fp, 512);
            $tokens = token_get_all($buffer);

            if (strpos($buffer, '{') === false) continue;

            for (;$i<count($tokens);$i++) {
                if ($tokens[$i][0] === T_NAMESPACE) {
                    for ($j=$i+1;$j<count($tokens); $j++) {
                        if ($tokens[$j][0] === T_STRING) {
                            $namespace .= '\\'.$tokens[$j][1];
                        } else if ($tokens[$j] === '{' || $tokens[$j] === ';') {
                            break;
                        }
                    }
                }

                if ($tokens[$i][0] === T_CLASS) {
                    for ($j=$i+1;$j<count($tokens);$j++) {
                        if ($tokens[$j] === '{') {
                            $class = $tokens[$i+2][1];
                        }
                    }
                }
            }
        }

        return $namespace . '\\' . $class;
    }

    public function getCommands()
    {
        $commands_path = base_path() . '/../commands';
        $files = array_diff(scandir(base_path() . '/../commands'), array('.', '..'));

        $classes = [];
        foreach($files as $file) {
            $classes[] = $this->extractClass($commands_path . '/' . $file);
        }

        $commands = parent::getCommands();
        return array_merge($commands, $classes);
    }
}