#!/usr/bin/env bun
// SPDX-License-Identifier: MIT
// Copyright (c) 2026 sol pbc

import { Command } from 'commander';

const program = new Command();
program
  .name('plc-verify')
  .description('Verify PLC directory entry for a DID')
  .requiredOption('--did <did>', 'DID to check (required)')
  .option('-v, --verbose', 'Show full API responses')
  .action(async (opts) => {
    try {
      const did = opts.did;

      if (!did.startsWith('did:plc:')) {
        throw new Error(`Expected a did:plc: identifier, got: ${did}`);
      }

      console.log(`Checking DID: ${did}\n`);

      const docUrl = `https://plc.directory/${did}`;
      const docRes = await fetch(docUrl);
      if (!docRes.ok) {
        throw new Error(`PLC directory returned ${docRes.status} for ${docUrl}`);
      }
      const doc = await docRes.json();

      if (opts.verbose) {
        console.log('[verbose] DID document:');
        console.log(JSON.stringify(doc, null, 2));
        console.log();
      }

      const handles = doc.alsoKnownAs ?? [];
      const services = doc.service ?? [];
      const verificationMethods = doc.verificationMethod ?? [];

      console.log(`DID document:`);
      console.log(`  id: ${doc.id}`);
      console.log(`  handles: ${handles.join(', ') || '(none)'}`);
      console.log(`  services: ${services.map(s => `${s.id} (${s.type})`).join(', ') || '(none)'}`);
      console.log(`  verification methods: ${verificationMethods.length}`);
      console.log();

      const auditUrl = `https://plc.directory/${did}/log/audit`;
      const auditRes = await fetch(auditUrl);
      if (!auditRes.ok) {
        throw new Error(`PLC directory returned ${auditRes.status} for ${auditUrl}`);
      }
      const auditLog = await auditRes.json();

      if (opts.verbose) {
        console.log('[verbose] Audit log:');
        console.log(JSON.stringify(auditLog, null, 2));
        console.log();
      }

      console.log(`Audit log: ${auditLog.length} operation(s)`);
      if (auditLog.length > 0) {
        const first = auditLog[0];
        const last = auditLog[auditLog.length - 1];
        console.log(`  first: ${first.createdAt}`);
        if (auditLog.length > 1) {
          console.log(`  latest: ${last.createdAt}`);
        }
      }
      console.log();

      console.log('All checks passed.');
    } catch (err) {
      console.error(err instanceof Error ? err.message : String(err));
      process.exitCode = 1;
    }
  });

program.parse();