KnowledgeBase/web/utils/uuid.ts

/**
 * Utility function to generate a UUID.
 * A wrapper for crypto.randomUUID() that provides a fallback for non-secure contexts (HTTP, older browsers, etc.).
 */
export const generateUUID = (): string => {
    // Check if crypto.randomUUID is available (only available in secure contexts like HTTPS/localhost)
    if (typeof crypto !== 'undefined' && typeof crypto.randomUUID === 'function') {
        return crypto.randomUUID();
    }

    // Fallback for non-secure contexts or older browsers (RFC4122 v4 compatible)
    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);
    });
};