<?php

require_once __DIR__ . '/../worker.php';

use Ahc\Jwt\JWT;
use Appwrite\Utopia\Response;
use Swoole\Runtime;
use Swoole\Timer;
use Utopia\App;
use Utopia\Config\Config;
use Utopia\Database\Database;
use Utopia\Database\Document;
use Utopia\Database\Exception\Authorization;
use Utopia\Database\Exception\Structure;
use Utopia\Queue;
use Utopia\Queue\Message;

global $register;

$keys = [];
$counter = 0;

const SUBMITION_INTERVAL = 20;
const MAX_KEY_COUNT = 10;
const MAX_CURL_SEND_ATTEMPTS = 4;

/**
 * @param string $url
 * @param string $token
 * @param array $keys
 * @return array
 */
function send(string $url, string $token, array $keys): array
{
    $payload = [];
    $ch = curl_init($url);
    curl_setopt($ch, CURLOPT_HTTPHEADER, [
        'Authorization: Bearer ' . $token,
        'Content-Type: application/json'
    ]);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_TIMEOUT, 5);
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'POST');
    curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($keys));

    for ($attempts = 0; $attempts < MAX_CURL_SEND_ATTEMPTS; $attempts++) {
        $response = curl_exec($ch);
        $status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        $payload = [
            'status' => $status,
            'payload' => json_decode($response, true)
            ];

        if ($status === 200) {
            return $payload;
        }

        sleep(2);
    }

    curl_close($ch);

    return $payload;
}

/**
 * @throws Authorization
 * @throws Structure
 * @throws Exception
 */
function call($database, $regions, $keys): void
{

    $jwt = new JWT(App::getEnv('_APP_OPENSSL_KEY_V1'), 'HS256', 600, 10);
    $token = $jwt->encode([]);

    foreach ($regions as $code => $region) {
        var_dump('Sending request to ' . $code . '...............');
        $response = send($region['domain'] . '/v1/edge/sync', $token, ['keys' => $keys]);
        var_dump([
                'keys' => $keys,
                'response' => $response
            ]);
        if ($response['status'] !== Response::STATUS_CODE_OK) {
            $database->createDocument('syncs', new Document([
                'region' => App::getEnv('_APP_REGION', 'nyc1'),
                'target' => $code,
                'keys' => $keys,
                'status' => $response['status'],
                'payload' => $response['payload'],
            ]));
        }
    }
}

$pools = $register->get('pools');
$queue = $pools
    ->get('queue')
    ->pop()
    ->getResource()
;

$connection = new Queue\Connection\Redis(fn() => $queue);
$adapter    = new Queue\Adapter\Swoole($connection, 2, 'syncOut');
$server     = new Queue\Server($adapter);


$server->job()
    ->inject('message')
    ->inject('dbForConsole')
    ->action(function (Message $message, Database $dbForConsole) use (&$keys, &$counter) {

        $payload = $message->getPayload()['value'];
        $regions = Config::getParam('regions', true);
        $regions = array_filter(
            $regions,
            fn ($region) => App::getEnv('_APP_REGION', 'nyc1') !== $region
                && $region !== 'default',
            ARRAY_FILTER_USE_KEY
        );

        if (!empty($payload['region'])) {
            $regions = array_filter(
                $regions,
                fn ($region) => $payload['region'] === $region,
                ARRAY_FILTER_USE_KEY
            );
        }

        if (!empty($payload['chunk'])) {
            call($dbForConsole, $regions, $payload['chunk']);
            return;
        }

         $keys[$payload['key']] = null;

//        if (count($keys) >= MAX_KEY_COUNT  || ($counter + SUBMITION_INTERVAL) < time()) {
//            call($dbForConsole, $regions, array_keys($keys));
//            $counter = time();
//            $keys = [];
//        }
    });

Runtime::enableCoroutine(SWOOLE_HOOK_ALL);

$server
    ->error()
    ->inject('error')
    ->action(function ($error) {
        echo $error->getMessage() . PHP_EOL;
        echo $error->getLine() . PHP_EOL;
    });

$server
    ->workerStart(function () {
        Timer::tick(1000, function () {
            var_dump(date('m/d/Y H:i:s', time()));
        });
        echo "Out region [" . App::getEnv('_APP_REGION', 'nyc1') . "] cache purging worker Started" . PHP_EOL;
    })
    ->start();