@applitools/utils/dist/uuid.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.uuid = void 0;
const isNode = () => typeof process !== 'undefined' && process.versions != null && process.versions.node != null;
const isWebCryptoAvailable = () => typeof window !== 'undefined' && window.crypto != null && typeof window.crypto.randomUUID === 'function';
const generateNodeUUID = () => {
    // We use a dynamic require('crypto') here to ensure this code doesn't break
    // when bundled for a browser environment, which does not have a 'crypto' module.
    // A static, top-level `import crypto from 'crypto'` would cause bundler errors.
    const cryptoModule = 'crypto';
    const crypto = require(cryptoModule);
    // Use the modern, fast method if available (Node.js >= 14.17.0)
    if (typeof crypto.randomUUID === 'function') {
        return crypto.randomUUID();
    }
    // Fallback for older Node.js versions using the still-secure randomBytes.
    const bytes = crypto.randomBytes(16);
    // Set the version to 4 as per RFC 4122
    bytes[6] = (bytes[6] & 0x0f) | 0x40;
    // Set the variant to RFC 4122
    bytes[8] = (bytes[8] & 0x3f) | 0x80;
    const hex = bytes.toString('hex');
    return [
        hex.substring(0, 8),
        hex.substring(8, 12),
        hex.substring(12, 16),
        hex.substring(16, 20),
        hex.substring(20),
    ].join('-');
};
const generateFallbackUUID = () => {
    return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, c => {
        const r = (Math.random() * 16) | 0;
        const v = c === 'x' ? r : (r & 0x3) | 0x8;
        return v.toString(16);
    });
};
/**
 * Generates a UUID v4 string (cryptographically secure if possible).
 */
const uuid = () => {
    if (isNode())
        return generateNodeUUID();
    if (isWebCryptoAvailable())
        return window.crypto.randomUUID();
    return generateFallbackUUID();
};
exports.uuid = uuid;