import {
  canonicalize,
  generateManifest,
  verifyManifest,
  readManifest,
  writeManifest,
} from "@parmanasystems/bundle";

// Canonical JSON serialization (recursive key sort - deterministic across environments)
const canonical = canonicalize({ z: 1, a: 2 });
// '{"a":2,"z":1}'

// Generate a content-addressed manifest for a policy directory
const manifest = generateManifest(
  "loan-approval",  // policyId
  "1.0.0",          // policyVersion
  "./policies/loan-approval/1.0.0"
);
console.log(manifest.bundle_hash); // SHA-256 hex digest of all artifacts

// Write manifest to disk
writeManifest(manifest, "./policies/loan-approval/1.0.0");
// → writes ./policies/loan-approval/1.0.0/bundle.manifest.json

// Read a previously written manifest
const loaded = readManifest("./policies/loan-approval/1.0.0/bundle.manifest.json");

// Verify a bundle directory against its manifest
const result = verifyManifest(
  "./policies/loan-approval/1.0.0",
  loaded
);
console.log(result.valid);                // true or false
console.log(result.actual_bundle_hash);   // recomputed hash from disk
console.log(result.expected_bundle_hash); // hash recorded in manifest