<?php

namespace App\Commands;

use Illuminate\Console\Scheduling\Schedule;
use LaravelZero\Framework\Commands\Command;

use PhpSchool\CliMenu\CliMenu;
use PhpSchool\CliMenu\MenuItem\CheckboxItem;
use PhpSchool\CliMenu\Builder\SplitItemBuilder;

use App\Facades\Menus\StylesFactory;

/**
 *  Manage Fail2ban Configuration
 *
 *
 *  @author Björn Hase, Tentakelfabrik
 *  @license http://opensource.org/licenses/MIT The MIT License
 *  @link https://gitea.tentakelfabrik.de/Tentakelfabrik/mcp
 *
 */
class Fail2banManageCommand extends Command
{
    // destination to jail
    const DESTINATION_FAIL2BAN_JAIL_DIRECTORY = '/etc/fail2ban/jail.d';

    // source to jail
    const SOURCE_FAIL2BAN_JAIL_DIRECTORY = '/resources/fail2ban/jail.d';

    // ignore files
    const IGNORE_FILES = [
        '.', '..', 'defaults-debian.conf'
    ];

    // configuration
    private $configuration = [];

    // enabled
    private $enabled = [];

    /**
     * The signature of the command.
     *
     * @var string
     */
    protected $signature = 'fail2ban:manage';

    /**
     * The description of the command.
     *
     * @var string
     */
    protected $description = 'manage fail2ban configuration';

    /**
     *
     *  @param  [type]  $file [description]
     *  @return boolean       [description]
     */
    private function name($file)
    {
        return str_replace('.conf', '', $file);
    }

    /**
     * Execute the console command.
     *
     * @return mixed
     */
    public function handle()
    {
        foreach(scandir(self::DESTINATION_FAIL2BAN_JAIL_DIRECTORY) as $file) {
            if (!in_array($file, self::IGNORE_FILES)) {
                $this->enabled[] = $this->name($file);
            }
        }

        foreach(scandir(base_path().self::SOURCE_FAIL2BAN_JAIL_DIRECTORY) as $file) {
            if (!in_array($file, self::IGNORE_FILES)) {
                $name = $this->name($file);
                $this->configuration[$name] = in_array($name, $this->enabled);
            }
        }

        // create menu
        $builder = $this->menu('Fail2ban');

        foreach($this->configuration as $name => $single) {

            // create checkbox
            $checkbox = new CheckboxItem($name, function(CliMenu $menu) use ($name) {
                 if ($this->configuration[$name] === true) {
                     $this->call('fail2ban:disable', [ 'configuration' => $name ]);
                     $menu->redraw();
                     $menu->confirm($name.' is disabled!')->display('OK!');
                 } else {
                     $this->call('fail2ban:enable', [ 'configuration' => $name ]);
                     $menu->redraw();
                     $menu->confirm($name.' is enabled!')->display('OK!');
                 }

                 // getting new value
                 $this->configuration[$name] = $menu->getSelectedItem()->getChecked();
                 $menu->redraw();
            });

            // set default value
            if ($this->configuration[$name]) {
                $checkbox->setChecked(true);
            }

            $builder->addMenuItem($checkbox);
        }

        // apperance
        $builder = StylesFactory::setMenuStyles($builder);
        $builder->addLineBreak('-');

        $mainmenu = $builder->build();
        $mainmenu->open();
    }
}