"use strict";Object.defineProperty(exports, "__esModule", { value: true });exports.generatePKCE = generatePKCE; /**
 * PKCE utilities using Web Crypto API.
 * Works in both Node.js 20+ and browsers.
 */
/**
 * Encode bytes as base64url string.
 */
function base64urlEncode(bytes) {
  let binary = "";
  for (const byte of bytes) {
    binary += String.fromCharCode(byte);
  }
  return btoa(binary).replace(/\+/g, "-").replace(/\//g, "_").replace(/=/g, "");
}
/**
 * Generate PKCE code verifier and challenge.
 * Uses Web Crypto API for cross-platform compatibility.
 */
async function generatePKCE() {
  // Generate random verifier
  const verifierBytes = new Uint8Array(32);
  crypto.getRandomValues(verifierBytes);
  const verifier = base64urlEncode(verifierBytes);
  // Compute SHA-256 challenge
  const encoder = new TextEncoder();
  const data = encoder.encode(verifier);
  const hashBuffer = await crypto.subtle.digest("SHA-256", data);
  const challenge = base64urlEncode(new Uint8Array(hashBuffer));
  return { verifier, challenge };
} /* v9-74ba9b9a80a408bf */