<?php
namespace Mince;

final class Remote {
    private static string $url = '';
    private static string $secret = '';

    public static function setUrl(string $url): void {
        self::$url = $url;
    }

    public static function setSecret(string $secret): void {
        self::$secret = $secret;
    }

    public static function call(string $mode, string $name): string {
        $time = (string)floor(time() / 120);
        $sign = hash_hmac('sha256', "{$time}#{$mode}#{$name}", self::$secret, true);

        $request = curl_init(self::$url);
        curl_setopt_array($request, [
            CURLOPT_AUTOREFERER => false,
            CURLOPT_FAILONERROR => false,
            CURLOPT_FOLLOWLOCATION => true,
            CURLOPT_HEADER => false,
            CURLOPT_POST => true,
            CURLOPT_POSTFIELDS => [
                'm' => $mode,
                's' => $sign,
                'n' => $name,
            ],
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_TCP_FASTOPEN => true,
            CURLOPT_CONNECTTIMEOUT => 2,
            CURLOPT_MAXREDIRS => 2,
            CURLOPT_PROTOCOLS => CURLPROTO_HTTP | CURLPROTO_HTTPS,
            CURLOPT_TIMEOUT => 5,
            CURLOPT_USERAGENT => 'mc.flashii.net',
        ]);
        $response = curl_exec($request);
        curl_close($request);

        return $response;
    }
}