'use strict';

var node_crypto = require('node:crypto');

const msToUnixTimestamp = (ms) => Math.floor(ms / 1000).toString();
const getSecureExpire = (options) => {
    if ('expire' in options) {
        return msToUnixTimestamp(new Date(options.expire).getTime());
    }
    return msToUnixTimestamp(Date.now() + options.lifetime);
};
/**
 * Generate a secure signature for signing the upload request to Uploadcare.
 *
 * @param secretKey - The secret key used to generate the signature.
 * @param options - Expiration options for the signature.
 * @see https://uploadcare.com/docs/security/secure-uploads/
 */
const generateSecureSignature = (secret, options) => {
    const hmac = node_crypto.createHmac('sha256', secret);
    const secureExpire = getSecureExpire(options);
    hmac.update(secureExpire);
    const secureSignature = hmac.digest('hex');
    return { secureSignature, secureExpire };
};

exports.generateSecureSignature = generateSecureSignature;