var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
var jws_exports = {};
__export(jws_exports, {
  signing: () => signing,
  verifying: () => verifying
});
module.exports = __toCommonJS(jws_exports);
var import_adapter = require("../../helper/adapter");
var import_encode = require("../encode");
var import_types = require("./types");
var import_utf8 = require("./utf8");
async function signing(privateKey, alg, data) {
  const algorithm = getKeyAlgorithm(alg);
  const cryptoKey = await importPrivateKey(privateKey, algorithm);
  return await crypto.subtle.sign(algorithm, cryptoKey, data);
}
async function verifying(publicKey, alg, signature, data) {
  const algorithm = getKeyAlgorithm(alg);
  const cryptoKey = await importPublicKey(publicKey, algorithm);
  return await crypto.subtle.verify(algorithm, cryptoKey, signature, data);
}
function pemToBinary(pem) {
  return (0, import_encode.decodeBase64)(pem.replace(/-+(BEGIN|END).*/g, "").replace(/\s/g, ""));
}
async function importPrivateKey(key, alg) {
  if (!crypto.subtle || !crypto.subtle.importKey) {
    throw new Error("`crypto.subtle.importKey` is undefined. JWT auth middleware requires it.");
  }
  if (isCryptoKey(key)) {
    if (key.type !== "private" && key.type !== "secret") {
      throw new Error(
        `unexpected key type: CryptoKey.type is ${key.type}, expected private or secret`
      );
    }
    return key;
  }
  const usages = [import_types.CryptoKeyUsage.Sign];
  if (typeof key === "object") {
    return await crypto.subtle.importKey("jwk", key, alg, false, usages);
  }
  if (key.includes("PRIVATE")) {
    return await crypto.subtle.importKey("pkcs8", pemToBinary(key), alg, false, usages);
  }
  return await crypto.subtle.importKey("raw", import_utf8.utf8Encoder.encode(key), alg, false, usages);
}
async function importPublicKey(key, alg) {
  if (!crypto.subtle || !crypto.subtle.importKey) {
    throw new Error("`crypto.subtle.importKey` is undefined. JWT auth middleware requires it.");
  }
  if (isCryptoKey(key)) {
    if (key.type === "public" || key.type === "secret") {
      return key;
    }
    key = await exportPublicJwkFrom(key);
  }
  if (typeof key === "string" && key.includes("PRIVATE")) {
    const privateKey = await crypto.subtle.importKey("pkcs8", pemToBinary(key), alg, true, [
      import_types.CryptoKeyUsage.Sign
    ]);
    key = await exportPublicJwkFrom(privateKey);
  }
  const usages = [import_types.CryptoKeyUsage.Verify];
  if (typeof key === "object") {
    return await crypto.subtle.importKey("jwk", key, alg, false, usages);
  }
  if (key.includes("PUBLIC")) {
    return await crypto.subtle.importKey("spki", pemToBinary(key), alg, false, usages);
  }
  return await crypto.subtle.importKey("raw", import_utf8.utf8Encoder.encode(key), alg, false, usages);
}
async function exportPublicJwkFrom(privateKey) {
  if (privateKey.type !== "private") {
    throw new Error(`unexpected key type: ${privateKey.type}`);
  }
  if (!privateKey.extractable) {
    throw new Error("unexpected private key is unextractable");
  }
  const jwk = await crypto.subtle.exportKey("jwk", privateKey);
  const { kty } = jwk;
  const { alg, e, n } = jwk;
  const { crv, x, y } = jwk;
  return { kty, alg, e, n, crv, x, y, key_ops: [import_types.CryptoKeyUsage.Verify] };
}
function getKeyAlgorithm(name) {
  switch (name) {
    case "HS256":
      return {
        name: "HMAC",
        hash: {
          name: "SHA-256"
        }
      };
    case "HS384":
      return {
        name: "HMAC",
        hash: {
          name: "SHA-384"
        }
      };
    case "HS512":
      return {
        name: "HMAC",
        hash: {
          name: "SHA-512"
        }
      };
    case "RS256":
      return {
        name: "RSASSA-PKCS1-v1_5",
        hash: {
          name: "SHA-256"
        }
      };
    case "RS384":
      return {
        name: "RSASSA-PKCS1-v1_5",
        hash: {
          name: "SHA-384"
        }
      };
    case "RS512":
      return {
        name: "RSASSA-PKCS1-v1_5",
        hash: {
          name: "SHA-512"
        }
      };
    case "PS256":
      return {
        name: "RSA-PSS",
        hash: {
          name: "SHA-256"
        },
        saltLength: 32
        // 256 >> 3
      };
    case "PS384":
      return {
        name: "RSA-PSS",
        hash: {
          name: "SHA-384"
        },
        saltLength: 48
        // 384 >> 3
      };
    case "PS512":
      return {
        name: "RSA-PSS",
        hash: {
          name: "SHA-512"
        },
        saltLength: 64
        // 512 >> 3,
      };
    case "ES256":
      return {
        name: "ECDSA",
        hash: {
          name: "SHA-256"
        },
        namedCurve: "P-256"
      };
    case "ES384":
      return {
        name: "ECDSA",
        hash: {
          name: "SHA-384"
        },
        namedCurve: "P-384"
      };
    case "ES512":
      return {
        name: "ECDSA",
        hash: {
          name: "SHA-512"
        },
        namedCurve: "P-521"
      };
    case "EdDSA":
      return {
        name: "Ed25519",
        namedCurve: "Ed25519"
      };
    default:
      throw new import_types.JwtAlgorithmNotImplemented(name);
  }
}
function isCryptoKey(key) {
  const runtime = (0, import_adapter.getRuntimeKey)();
  if (runtime === "node" && !!crypto.webcrypto) {
    return key instanceof crypto.webcrypto.CryptoKey;
  }
  return key instanceof CryptoKey;
}
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
  signing,
  verifying
});
