/**
 * End-to-end test for Passkey authentication against amiPro FIDO2 server.
 *
 * Tests:
 * 1. AmiProFIDO2Client connectivity
 * 2. PasskeyPlatformService flow
 * 3. PasskeyServer interactive ceremony (opens browser)
 *
 * Usage: npx tsx test-passkey.ts [register|authenticate]
 */

import { AmiProFIDO2Client } from './src/passkey/amipro-fido2-client.js';
import { PasskeyPlatformService } from './src/passkey/platform-service.js';
import { PasskeyServer } from './src/passkey/passkey-server.js';

const FIDO2_SERVER_URL = 'https://fido2.epk.amipro.me';
const RP_ID = 'a2a-demo.mcplet.ai';
const TEST_USER = 'a2a-test-user';

async function testAmiProClient() {
  console.log('\n=== Test 1: AmiProFIDO2Client Connectivity ===\n');

  const client = new AmiProFIDO2Client(FIDO2_SERVER_URL, RP_ID);

  // Test attestation options (registration)
  console.log('[1a] Getting attestation options...');
  try {
    const attOpts = await client.getAttestationOptions(TEST_USER, 'A2A Test User');
    console.log('  status:', attOpts.status);
    if (attOpts.status !== 'failed') {
      console.log('  challenge:', attOpts.challenge?.substring(0, 30) + '...');
      console.log('  rp:', JSON.stringify(attOpts.rp));
      console.log('  user.id:', attOpts.user?.id?.substring(0, 20) + '...');
      console.log('  pubKeyCredParams:', JSON.stringify(attOpts.pubKeyCredParams));
      console.log('  timeout:', attOpts.timeout);
    } else {
      console.log('  errorMessage:', attOpts.errorMessage);
    }
  } catch (err) {
    console.error('  ERROR:', (err as Error).message);
  }

  // Test assertion options (authentication)
  console.log('\n[1b] Getting assertion options...');
  try {
    const assertOpts = await client.getAssertionOptions(TEST_USER);
    console.log('  status:', assertOpts.status);
    if (assertOpts.status === 'ok') {
      console.log('  challenge:', assertOpts.challenge?.substring(0, 30) + '...');
      console.log('  rpId:', assertOpts.rpId);
      console.log('  timeout:', assertOpts.timeout);
      console.log('  allowCredentials:', assertOpts.allowCredentials?.length, 'entries');
      console.log('  userVerification:', assertOpts.userVerification);
    } else {
      console.log('  errorMessage:', assertOpts.errorMessage);
      console.log('  (Expected: user not registered yet)');
    }
  } catch (err) {
    console.error('  ERROR:', (err as Error).message);
  }
}

async function testPlatformService() {
  console.log('\n=== Test 2: PasskeyPlatformService ===\n');

  const service = new PasskeyPlatformService(RP_ID, FIDO2_SERVER_URL);

  // Test get attestation options
  console.log('[2a] Getting attestation options via service...');
  const attResult = await service.getAttestationOptions(TEST_USER, 'A2A Test User');
  console.log('  success:', attResult.success);
  if (attResult.success) {
    console.log('  challenge present:', !!attResult.options?.challenge);
    console.log('  rp:', JSON.stringify(attResult.options?.rp));
  } else {
    console.log('  error:', attResult.error);
  }

  // Test get assertion options
  console.log('\n[2b] Getting assertion options via service...');
  const assertResult = await service.getAssertionOptions(TEST_USER);
  console.log('  success:', assertResult.success);
  if (assertResult.success) {
    console.log('  challenge present:', !!assertResult.options?.challenge);
    console.log('  allowCredentials:', assertResult.options?.allowCredentials?.length, 'entries');
  } else {
    console.log('  error:', assertResult.error);
    console.log('  (Expected if user not registered yet)');
  }
}

async function testInteractiveCeremony(username?: string) {
  console.log(`\n=== Test 3: Interactive Passkey Ceremony ===\n`);
  console.log(`Opens a browser page that auto-detects register vs authenticate.`);
  console.log(`rpId: ${RP_ID}, FIDO2 server: ${FIDO2_SERVER_URL}`);
  if (username) console.log(`Pre-filled username: ${username}`);
  console.log();

  const server = new PasskeyServer(RP_ID, FIDO2_SERVER_URL, 180_000);

  try {
    const payload = await server.startCeremony(
      `この操作には Passkey 認証が必要です`,
      username,
    );

    console.log('\n  Ceremony succeeded!');
    console.log('  type:', payload.type);
    console.log('  challenge:', payload.challenge?.substring(0, 30) + '...');
    console.log('  session:', (payload as any).session);
    console.log('  username:', (payload as any).username);
  } catch (err) {
    console.error('\n  Ceremony failed:', (err as Error).message);
  }
}

// ─── Main ──────────────────────────────────────────────────────────────

const arg = process.argv[2];

await testAmiProClient();
await testPlatformService();

if (arg === 'test') {
  // Interactive test: opens browser with unified flow
  // Pass a username to pre-fill, or omit to let user enter it
  const username = process.argv[3] || undefined;
  await testInteractiveCeremony(username);
} else if (arg === 'new') {
  // Test with a brand new user (no pre-fill)
  await testInteractiveCeremony();
} else {
  console.log('\n=== Interactive test skipped ===');
  console.log('Usage:');
  console.log('  npx tsx test-passkey.ts test [username]  — unified flow (auto register+auth)');
  console.log('  npx tsx test-passkey.ts new              — new user (empty username field)');
}

console.log('\nDone.');
process.exit(0);