<?php
declare(strict_types=1);

/**
 * This is my open source code, please do not use it for commercial applications.
 * For the full copyright and license information,
 * please view the LICENSE file that was distributed with this source code
 *
 * @author Yuandong<837215079@qq.com>
 * @link   https://github.com/gzydong/hyperf-chat
 */

namespace App\Command;

use App\Cache\ServerRunID;
use App\Cache\SocketFdBindUser;
use App\Cache\SocketUserBindFds;
use Hyperf\Command\Annotation\Command;
use Hyperf\Command\Command as HyperfCommand;
use Psr\Container\ContainerInterface;

/**
 * @Command
 */
class RemoveWsCacheCommand extends HyperfCommand
{
    /**
     * @var ContainerInterface
     */
    protected $container;

    public function __construct(ContainerInterface $container)
    {
        $this->container = $container;

        parent::__construct('ws:remove-cache');
    }

    public function configure()
    {
        parent::configure();
        $this->setDescription('清除 WebSocket 客户端 FD 与用户绑定的缓存信息');
    }

    public function handle()
    {
        $this->line('此过程可能耗时较长，请耐心等待!', 'info');

        // 获取所有已停止运行的服务ID
        $arr = ServerRunID::getInstance()->getServerRunIdAll(2);
        foreach ($arr as $run_id => $value) {
            $this->clear((string)$run_id);
        }

        $this->line('缓存已清除!', 'info');
    }

    public function clear(string $run_id)
    {
        ServerRunID::getInstance()->rem($run_id);
        SocketFdBindUser::getInstance()->delete($run_id);

        $prefix   = SocketUserBindFds::getInstance()->getCachePrefix($run_id);
        $iterator = null;
        while (true) {
            $keys = redis()->scan($iterator, "{$prefix}*", 20);

            if ($keys === false) return;

            if (!empty($keys)) {
                redis()->del(...$keys);
            }
        }
    }
}