ci4

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<?php
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declare(strict_types=1);
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/**
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 * This file is part of CodeIgniter 4 framework.
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 *
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 * (c) CodeIgniter Foundation <admin@codeigniter.com>
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 *
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 * For the full copyright and license information, please view
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 * the LICENSE file that was distributed with this source code.
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 */
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namespace CodeIgniter\HotReloader;
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/**
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 * @internal
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 */
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final class HotReloader
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{
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    public function run(): void
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    {
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        if (session_status() === PHP_SESSION_ACTIVE) {
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            session_write_close();
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        }
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        ini_set('zlib.output_compression', 'Off');
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        header('Cache-Control: no-store');
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        header('Content-Type: text/event-stream');
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        header('Access-Control-Allow-Methods: GET');
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        ob_end_clean();
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        set_time_limit(0);
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        $hasher  = new DirectoryHasher();
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        $appHash = $hasher->hash();
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        while (true) {
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            if (connection_status() !== CONNECTION_NORMAL || connection_aborted()) {
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                break;
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            }
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            $currentHash = $hasher->hash();
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            // If hash has changed, tell the browser to reload.
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            if ($currentHash !== $appHash) {
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                $appHash = $currentHash;
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                $this->sendEvent('reload', ['time' => date('Y-m-d H:i:s')]);
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                break;
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            }
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            if (mt_rand(1, 10) > 8) {
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                $this->sendEvent('ping', ['time' => date('Y-m-d H:i:s')]);
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            }
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            sleep(1);
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        }
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    }
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    /**
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     * Send an event to the browser.
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     */
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    private function sendEvent(string $event, array $data): void
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    {
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        echo "event: {$event}\n";
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        echo 'data: ' . json_encode($data) . "\n\n";
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        ob_flush();
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        flush();
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    }
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}
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