/**
 * End-to-end tests for WebAuthn functionality
 *
 * These tests use a real PostgreSQL database and a virtual authenticator
 * to exercise the full WebAuthn registration and authentication flows.
 *
 * All tests call router handlers directly via `call()` from @orpc/server.
 */

import type { Database } from "@reviq/db-schema";
import type { Kysely } from "kysely";
import type { APIContext } from "../../context.js";
import { afterAll, beforeAll, describe, expect, test } from "bun:test";
import { call } from "@orpc/server";
import {
  createTestUser,
  describeE2E,
  destroySharedDb,
  getSharedDb,
  initTestDb,
  KNOWN_AAGUIDS,
  TEST_RP,
  uniqueTestId,
  withTestTransaction,
} from "@reviq/test-helpers";
import { VirtualAuthenticator } from "@reviq/virtual-authenticator";
import { router } from "../../router.js";
import { COOKIE_NAMES } from "../../utils/cookies.js";
import { hashToken } from "../../utils/crypto.js";
import { getUserPasskeys } from "../../utils/webauthn.js";

/** Session expiry duration: 24 hours in milliseconds */
const SESSION_EXPIRY_MS = 24 * 60 * 60 * 1000;

/**
 * Create an API context with optional session token
 */
function createAPIContext(
  db: Kysely<Database>,
  sessionToken?: string,
): APIContext {
  const reqHeaders = new Headers();
  if (sessionToken) {
    reqHeaders.set("cookie", `${COOKIE_NAMES.SESSION_TOKEN}=${sessionToken}`);
  }

  return {
    db,
    origin: TEST_RP.origin,
    allowedOrigins: [...TEST_RP.allowedOrigins],
    rpName: TEST_RP.rpName,
    reqHeaders,
    resHeaders: new Headers(),
  };
}

/**
 * Create a real session in the database and return the token
 */
async function createSession(
  db: Kysely<Database>,
  userId: number,
): Promise<string> {
  const token = `test-session-${uniqueTestId()}`;
  const tokenHashValue = await hashToken(token);
  const expiresAt = new Date(Date.now() + SESSION_EXPIRY_MS);

  await db
    .insertInto("sessions")
    .values({
      user_id: userId,
      token_hash: tokenHashValue,
      ip_address: "127.0.0.1",
      user_agent: "test-agent",
      expires_at: expiresAt,
      trusted_mode: false,
    })
    .execute();

  return token;
}

/**
 * Create a login request in the database and return ID and token
 */
async function createLoginRequest(
  db: Kysely<Database>,
  userId: number,
  email: string,
): Promise<{ id: number; token: string }> {
  const token = `test-login-${uniqueTestId()}`;
  const expiresAt = new Date(Date.now() + 10 * 60 * 1000); // 10 minutes

  const result = await db
    .insertInto("login_requests")
    .values({
      user_id: userId,
      email,
      token,
      expires_at: expiresAt,
    })
    .returning("id")
    .executeTakeFirstOrThrow();

  return { id: Number(result.id), token };
}

/**
 * Create an authenticated API context for a user (creates session + context)
 */
async function createUserAPIContext(
  db: Kysely<Database>,
  userId: number,
): Promise<APIContext> {
  const sessionToken = await createSession(db, userId);
  return createAPIContext(db, sessionToken);
}

/**
 * Create an API context with login request cookie
 */
function createLoginRequestContext(
  db: Kysely<Database>,
  loginToken: string,
): APIContext {
  const reqHeaders = new Headers();
  reqHeaders.set("cookie", `${COOKIE_NAMES.LOGIN_REQUEST_TOKEN}=${loginToken}`);

  return {
    db,
    origin: TEST_RP.origin,
    allowedOrigins: [...TEST_RP.allowedOrigins],
    rpName: TEST_RP.rpName,
    reqHeaders,
    resHeaders: new Headers(),
  };
}

/**
 * Helper to get the first element of an array, throwing if empty.
 * Provides consistent null checking across tests.
 */
function expectFirst<T>(arr: T[], message: string): T {
  const first = arr[0];
  if (!first) {
    throw new Error(message);
  }
  return first;
}

/**
 * Register a passkey using router handlers.
 * Shared helper to avoid duplication across test suites.
 */
async function registerPasskey(
  db: Kysely<Database>,
  userId: number,
  email: string,
  authenticator: VirtualAuthenticator,
) {
  const apiCtx = createAPIContext(db);
  const authCtx = await createUserAPIContext(db, userId);

  const { options, challengeId } = await call(
    router.auth.webauthn.createRegistrationOptions,
    { email },
    { context: apiCtx },
  );
  const response = authenticator.createCredential(options);
  await call(
    router.auth.webauthn.verifyRegistration,
    { challengeId, response },
    { context: authCtx },
  );
  return response;
}

/**
 * Authenticate using router handlers.
 * Shared helper to avoid duplication across test suites.
 */
async function authenticate(
  db: Kysely<Database>,
  userId: number,
  email: string,
  authenticator: VirtualAuthenticator,
) {
  const { token: loginToken } = await createLoginRequest(db, userId, email);
  const loginCtx = createLoginRequestContext(db, loginToken);

  const { options, challengeId } = await call(
    router.auth.webauthn.createAuthenticationOptions,
    undefined,
    { context: loginCtx },
  );
  const response = authenticator.getAssertion(options);
  await call(
    router.auth.webauthn.verifyAuthentication,
    { challengeId, response },
    { context: loginCtx },
  );
}

describeE2E("webauthn", () => {
  beforeAll(async () => {
    await initTestDb();
  });

  afterAll(async () => {
    await destroySharedDb();
  });

  describe("registration flow", () => {
    test("creates registration options with challenge stored in DB via router", async () => {
      await withTestTransaction(getSharedDb(), async (db) => {
        const user = await createTestUser(db, {
          email: "reg-options@test.com",
        });
        const ctx = createAPIContext(db);

        // Call router handler directly
        const { options, challengeId } = await call(
          router.auth.webauthn.createRegistrationOptions,
          { email: user.email },
          { context: ctx },
        );

        // Verify options structure
        expect(options.challenge).toBeDefined();
        expect(options.rp.name).toBe(TEST_RP.rpName);
        expect(options.rp.id).toBe(TEST_RP.rpID);
        // user.name is displayName if available, otherwise email
        expect(options.user.name).toBe("Test User");
        expect(challengeId).toBeGreaterThan(0);

        // Verify challenge is stored in database
        const challengeRow = await db
          .selectFrom("webauthn_challenges")
          .select("id")
          .where("id", "=", challengeId.toString())
          .executeTakeFirst();

        expect(challengeRow).toBeDefined();
      });
    });

    test("verifies valid registration and stores passkey via router", async () => {
      await withTestTransaction(getSharedDb(), async (db) => {
        const user = await createTestUser(db, {
          email: "reg-verify@test.com",
        });
        const authenticator = new VirtualAuthenticator({
          origin: TEST_RP.origin,
        });

        // Create registration options via router
        const apiCtx = createAPIContext(db);
        const { options, challengeId } = await call(
          router.auth.webauthn.createRegistrationOptions,
          { email: user.email },
          { context: apiCtx },
        );

        // Create credential with virtual authenticator
        const response = authenticator.createCredential(options);

        // Verify registration via router (requires authenticated session)
        const authCtx = await createUserAPIContext(db, user.id);
        await call(
          router.auth.webauthn.verifyRegistration,
          { challengeId, response },
          { context: authCtx },
        );

        // Verify passkey is stored in database
        const passkeys = await getUserPasskeys(db, user.id);
        expect(passkeys).toHaveLength(1);
        const firstPasskey = expectFirst(passkeys, "Expected passkey to exist");
        expect(firstPasskey.rpid).toBe(TEST_RP.rpID);
        expect(firstPasskey.counter).toBe(0);
      });
    });

    test("excludes existing passkeys for returning users via router", async () => {
      await withTestTransaction(getSharedDb(), async (db) => {
        const user = await createTestUser(db, {
          email: "exclude-test@test.com",
        });
        const authenticator = new VirtualAuthenticator({
          origin: TEST_RP.origin,
        });
        const apiCtx = createAPIContext(db);
        const authCtx = await createUserAPIContext(db, user.id);

        // Register first passkey via router
        const { options: options1, challengeId: challengeId1 } = await call(
          router.auth.webauthn.createRegistrationOptions,
          { email: user.email },
          { context: apiCtx },
        );
        const response1 = authenticator.createCredential(options1);
        await call(
          router.auth.webauthn.verifyRegistration,
          { challengeId: challengeId1, response: response1 },
          { context: authCtx },
        );

        // Get second registration options via router
        const { options: options2 } = await call(
          router.auth.webauthn.createRegistrationOptions,
          { email: user.email },
          { context: apiCtx },
        );

        // Should have excludeCredentials with the first passkey
        expect(options2.excludeCredentials).toHaveLength(1);
        const excludedCred = expectFirst(
          options2.excludeCredentials ?? [],
          "Expected excluded credential to exist",
        );
        expect(excludedCred.id).toBe(response1.id);
      });
    });

    test("assigns friendly name from known AAGUID via router", async () => {
      await withTestTransaction(getSharedDb(), async (db) => {
        const user = await createTestUser(db, {
          email: "aaguid-test@test.com",
        });

        // Use iCloud Keychain AAGUID
        const authenticator = new VirtualAuthenticator({
          origin: TEST_RP.origin,
          aaguid: KNOWN_AAGUIDS.ICLOUD_KEYCHAIN,
        });

        const apiCtx = createAPIContext(db);
        const authCtx = await createUserAPIContext(db, user.id);

        const { options, challengeId } = await call(
          router.auth.webauthn.createRegistrationOptions,
          { email: user.email },
          { context: apiCtx },
        );
        const response = authenticator.createCredential(options);
        await call(
          router.auth.webauthn.verifyRegistration,
          { challengeId, response },
          { context: authCtx },
        );

        const passkeys = await getUserPasskeys(db, user.id);
        expect(passkeys).toHaveLength(1);
        const firstPasskey = expectFirst(passkeys, "Expected passkey to exist");
        expect(firstPasskey.name).toBe("iCloud Keychain");
      });
    });

    test("cleans up challenge after verification via router", async () => {
      await withTestTransaction(getSharedDb(), async (db) => {
        const user = await createTestUser(db, {
          email: "cleanup-test@test.com",
        });
        const authenticator = new VirtualAuthenticator({
          origin: TEST_RP.origin,
        });
        const apiCtx = createAPIContext(db);
        const authCtx = await createUserAPIContext(db, user.id);

        const { options, challengeId } = await call(
          router.auth.webauthn.createRegistrationOptions,
          { email: user.email },
          { context: apiCtx },
        );
        const response = authenticator.createCredential(options);
        await call(
          router.auth.webauthn.verifyRegistration,
          { challengeId, response },
          { context: authCtx },
        );

        // Challenge should be deleted
        const challengeRow = await db
          .selectFrom("webauthn_challenges")
          .select("id")
          .where("id", "=", challengeId.toString())
          .executeTakeFirst();

        expect(challengeRow).toBeUndefined();
      });
    });

    test("rejects expired/missing challenges via router", async () => {
      await withTestTransaction(getSharedDb(), async (db) => {
        const user = await createTestUser(db, {
          email: "expired-test@test.com",
        });
        const authenticator = new VirtualAuthenticator({
          origin: TEST_RP.origin,
        });
        const apiCtx = createAPIContext(db);
        const authCtx = await createUserAPIContext(db, user.id);

        // Create options via router
        const { options } = await call(
          router.auth.webauthn.createRegistrationOptions,
          { email: user.email },
          { context: apiCtx },
        );
        const response = authenticator.createCredential(options);

        // Use a non-existent challenge ID - should fail
        try {
          await call(
            router.auth.webauthn.verifyRegistration,
            { challengeId: 999999, response },
            { context: authCtx },
          );
          throw new Error("Expected verification to fail");
        } catch (error) {
          expect(error).toBeInstanceOf(Error);
          expect((error as Error).message).toContain("Registration timed out");
        }
      });
    });
  });

  describe("authentication flow", () => {
    test("creates authentication options with user's passkeys via router", async () => {
      await withTestTransaction(getSharedDb(), async (db) => {
        const user = await createTestUser(db, {
          email: "auth-options@test.com",
        });
        const authenticator = new VirtualAuthenticator({
          origin: TEST_RP.origin,
        });

        // Register a passkey first via router
        const regResponse = await registerPasskey(
          db,
          user.id,
          user.email,
          authenticator,
        );

        // Create authentication options via router
        const { token: loginToken } = await createLoginRequest(
          db,
          user.id,
          user.email,
        );
        const loginCtx = createLoginRequestContext(db, loginToken);
        const { options, challengeId } = await call(
          router.auth.webauthn.createAuthenticationOptions,
          undefined,
          { context: loginCtx },
        );

        expect(options.challenge).toBeDefined();
        expect(options.rpId).toBe(TEST_RP.rpID);
        expect(options.allowCredentials).toHaveLength(1);
        const allowedCred = expectFirst(
          options.allowCredentials ?? [],
          "Expected allowed credential to exist",
        );
        expect(allowedCred.id).toBe(regResponse.id);
        expect(challengeId).toBeGreaterThan(0);
      });
    });

    test("verifies valid authentication and updates counter via router", async () => {
      await withTestTransaction(getSharedDb(), async (db) => {
        const user = await createTestUser(db, {
          email: "auth-verify@test.com",
        });
        const authenticator = new VirtualAuthenticator({
          origin: TEST_RP.origin,
        });

        // Register passkey via router
        await registerPasskey(db, user.id, user.email, authenticator);

        // Authenticate via router
        const { token: loginToken } = await createLoginRequest(
          db,
          user.id,
          user.email,
        );
        const loginCtx = createLoginRequestContext(db, loginToken);
        const { options: authOptions, challengeId: authChallengeId } =
          await call(
            router.auth.webauthn.createAuthenticationOptions,
            undefined,
            { context: loginCtx },
          );
        const authResponse = authenticator.getAssertion(authOptions);

        await call(
          router.auth.webauthn.verifyAuthentication,
          { challengeId: authChallengeId, response: authResponse },
          { context: loginCtx },
        );

        // Verify counter was updated
        const passkeys = await getUserPasskeys(db, user.id);
        const firstPasskey = expectFirst(passkeys, "Expected passkey to exist");
        expect(firstPasskey.counter).toBe(1);
      });
    });

    test("updates last_used_at timestamp via router", async () => {
      await withTestTransaction(getSharedDb(), async (db) => {
        const user = await createTestUser(db, { email: "last-used@test.com" });
        const authenticator = new VirtualAuthenticator({
          origin: TEST_RP.origin,
        });

        // Register passkey via router
        await registerPasskey(db, user.id, user.email, authenticator);

        // Check initial state
        let passkeys = await getUserPasskeys(db, user.id);
        let firstPasskey = expectFirst(passkeys, "Expected passkey to exist");
        expect(firstPasskey.lastUsedAt).toBeNull();

        // Authenticate via router
        const { token: loginToken } = await createLoginRequest(
          db,
          user.id,
          user.email,
        );
        const loginCtx = createLoginRequestContext(db, loginToken);
        const { options: authOptions, challengeId: authChallengeId } =
          await call(
            router.auth.webauthn.createAuthenticationOptions,
            undefined,
            { context: loginCtx },
          );
        const authResponse = authenticator.getAssertion(authOptions);
        await call(
          router.auth.webauthn.verifyAuthentication,
          { challengeId: authChallengeId, response: authResponse },
          { context: loginCtx },
        );

        // Check last_used_at is now set
        passkeys = await getUserPasskeys(db, user.id);
        firstPasskey = expectFirst(passkeys, "Expected passkey to exist");
        expect(firstPasskey.lastUsedAt).not.toBeNull();
      });
    });

    test("cleans up challenge after authentication via router", async () => {
      await withTestTransaction(getSharedDb(), async (db) => {
        const user = await createTestUser(db, {
          email: "auth-cleanup@test.com",
        });
        const authenticator = new VirtualAuthenticator({
          origin: TEST_RP.origin,
        });

        // Register passkey via router
        await registerPasskey(db, user.id, user.email, authenticator);

        // Authenticate via router
        const { token: loginToken } = await createLoginRequest(
          db,
          user.id,
          user.email,
        );
        const loginCtx = createLoginRequestContext(db, loginToken);
        const { options: authOptions, challengeId: authChallengeId } =
          await call(
            router.auth.webauthn.createAuthenticationOptions,
            undefined,
            { context: loginCtx },
          );
        const authResponse = authenticator.getAssertion(authOptions);
        await call(
          router.auth.webauthn.verifyAuthentication,
          { challengeId: authChallengeId, response: authResponse },
          { context: loginCtx },
        );

        // Challenge should be deleted
        const challengeRow = await db
          .selectFrom("webauthn_challenges")
          .select("id")
          .where("id", "=", authChallengeId.toString())
          .executeTakeFirst();

        expect(challengeRow).toBeUndefined();
      });
    });

    test("rejects unknown credential IDs", async () => {
      await withTestTransaction(getSharedDb(), async (db) => {
        const user = await createTestUser(db, {
          email: "unknown-cred@test.com",
        });
        const authenticator = new VirtualAuthenticator({
          origin: TEST_RP.origin,
        });

        // Register passkey via router
        await registerPasskey(db, user.id, user.email, authenticator);

        // Create auth options via router
        const { token: loginToken } = await createLoginRequest(
          db,
          user.id,
          user.email,
        );
        const loginCtx = createLoginRequestContext(db, loginToken);
        const { options: authOptions } = await call(
          router.auth.webauthn.createAuthenticationOptions,
          undefined,
          { context: loginCtx },
        );

        // Use a fresh authenticator that doesn't have the registered credential
        const freshAuthenticator = new VirtualAuthenticator({
          origin: TEST_RP.origin,
        });
        // First create a credential so the authenticator has something (use same registration options)
        const apiCtx = createAPIContext(db);
        const { options: regOptions } = await call(
          router.auth.webauthn.createRegistrationOptions,
          { email: user.email },
          { context: apiCtx },
        );
        freshAuthenticator.createCredential(regOptions);

        // This should fail because the fresh authenticator doesn't have the right credential
        try {
          freshAuthenticator.getAssertion(authOptions);
          throw new Error("Expected assertion to fail");
        } catch (error) {
          expect(error).toBeInstanceOf(Error);
          expect((error as Error).message).toContain(
            "No matching credential found",
          );
        }
      });
    });
  });

  describe("security tests", () => {
    test("rejects replayed credentials (counter check) via router", async () => {
      await withTestTransaction(getSharedDb(), async (db) => {
        const user = await createTestUser(db, {
          email: "counter-replay@test.com",
        });
        const authenticator = new VirtualAuthenticator({
          origin: TEST_RP.origin,
        });

        // Register passkey via router
        const regResponse = await registerPasskey(
          db,
          user.id,
          user.email,
          authenticator,
        );

        // First authentication should succeed
        await authenticate(db, user.id, user.email, authenticator);

        // Verify counter was updated to 1
        let passkeys = await getUserPasskeys(db, user.id);
        let firstPasskey = expectFirst(passkeys, "Expected passkey to exist");
        expect(firstPasskey.counter).toBe(1);

        // Reset the authenticator's sign count to 0 (simulating replay attack)
        authenticator.setSignCount(regResponse.id, 0);

        // Create a new authentication challenge
        const { token: loginToken } = await createLoginRequest(
          db,
          user.id,
          user.email,
        );
        const loginCtx = createLoginRequestContext(db, loginToken);
        const { options, challengeId } = await call(
          router.auth.webauthn.createAuthenticationOptions,
          undefined,
          { context: loginCtx },
        );

        // Get assertion with replayed (lower) counter
        const authResponse = authenticator.getAssertion(options);

        // Verify authentication should fail due to counter replay (throws an error)
        try {
          await call(
            router.auth.webauthn.verifyAuthentication,
            { challengeId, response: authResponse },
            { context: loginCtx },
          );
          throw new Error("Expected verification to fail");
        } catch (error) {
          expect(error).toBeInstanceOf(Error);
          expect((error as Error).message).toContain("counter");
        }

        // Counter should not have changed
        passkeys = await getUserPasskeys(db, user.id);
        firstPasskey = expectFirst(passkeys, "Expected passkey to exist");
        expect(firstPasskey.counter).toBe(1);
      });
    });

    test("rejects tampered authentication response", async () => {
      await withTestTransaction(getSharedDb(), async (db) => {
        const user = await createTestUser(db, {
          email: "tampered-response@test.com",
        });
        const authenticator = new VirtualAuthenticator({
          origin: TEST_RP.origin,
        });

        // Register passkey via router
        await registerPasskey(db, user.id, user.email, authenticator);

        // Create authentication challenge
        const { token: loginToken } = await createLoginRequest(
          db,
          user.id,
          user.email,
        );
        const loginCtx = createLoginRequestContext(db, loginToken);
        const { options, challengeId } = await call(
          router.auth.webauthn.createAuthenticationOptions,
          undefined,
          { context: loginCtx },
        );

        // Get valid assertion
        const authResponse = authenticator.getAssertion(options);

        // Tamper with the authenticatorData (flip some bits in the middle)
        // This causes signature verification to fail without breaking ASN.1 parsing
        const tamperedAuthData = Buffer.from(
          authResponse.response.authenticatorData,
          "base64url",
        );
        // Ensure buffer is long enough (authenticatorData is always > 37 bytes)
        if (tamperedAuthData.length < 21) {
          throw new Error("authenticatorData too short for tampering");
        }
        const originalByte = tamperedAuthData[20];
        if (originalByte === undefined) {
          throw new Error("Failed to read byte at index 20");
        }
        tamperedAuthData[20] = originalByte ^ 0xff; // Flip bits in a byte (within rpIdHash)
        const tamperedResponse = {
          ...authResponse,
          response: {
            ...authResponse.response,
            authenticatorData: tamperedAuthData.toString("base64url"),
          },
        };

        // Verify authentication should fail due to tampering (throws an error)
        try {
          await call(
            router.auth.webauthn.verifyAuthentication,
            { challengeId, response: tamperedResponse },
            { context: loginCtx },
          );
          throw new Error("Expected verification to fail");
        } catch (error) {
          // Tampering should cause verification to fail with an error
          expect(error).toBeInstanceOf(Error);
          // Should not be our sentinel error
          expect((error as Error).message).not.toBe(
            "Expected verification to fail",
          );
        }
      });
    });
  });

  describe("full passkey lifecycle", () => {
    test("register → authenticate → add second passkey → authenticate with either via router", async () => {
      await withTestTransaction(getSharedDb(), async (db) => {
        const user = await createTestUser(db, { email: "lifecycle@test.com" });
        const authenticator1 = new VirtualAuthenticator({
          origin: TEST_RP.origin,
        });
        const authenticator2 = new VirtualAuthenticator({
          origin: TEST_RP.origin,
        });

        // Register first passkey via router
        await registerPasskey(db, user.id, user.email, authenticator1);

        // Authenticate with first passkey via router
        await authenticate(db, user.id, user.email, authenticator1);

        // Register second passkey via router
        await registerPasskey(db, user.id, user.email, authenticator2);

        // Verify user now has 2 passkeys
        const passkeys = await getUserPasskeys(db, user.id);
        expect(passkeys).toHaveLength(2);

        // Authenticate with second passkey via router
        await authenticate(db, user.id, user.email, authenticator2);

        // Authenticate with first passkey again via router
        await authenticate(db, user.id, user.email, authenticator1);
      });
    });

    test("register → authenticate multiple times → counter increments via router", async () => {
      await withTestTransaction(getSharedDb(), async (db) => {
        const user = await createTestUser(db, {
          email: "counter-test@test.com",
        });
        const authenticator = new VirtualAuthenticator({
          origin: TEST_RP.origin,
        });

        // Register passkey via router
        await registerPasskey(db, user.id, user.email, authenticator);

        // Verify initial counter
        let passkeys = await getUserPasskeys(db, user.id);
        let firstPasskey = expectFirst(passkeys, "Expected passkey to exist");
        expect(firstPasskey.counter).toBe(0);

        // Authenticate 5 times via router
        for (let i = 1; i <= 5; i++) {
          await authenticate(db, user.id, user.email, authenticator);

          // Verify counter incremented
          passkeys = await getUserPasskeys(db, user.id);
          firstPasskey = expectFirst(passkeys, "Expected passkey to exist");
          expect(firstPasskey.counter).toBe(i);
        }
      });
    });
  });

  describe("passkey management", () => {
    test("lists passkeys with correct data via router", async () => {
      await withTestTransaction(getSharedDb(), async (db) => {
        const user = await createTestUser(db, {
          email: "list-passkeys@test.com",
        });
        const authenticator1 = new VirtualAuthenticator({
          origin: TEST_RP.origin,
          aaguid: KNOWN_AAGUIDS.ICLOUD_KEYCHAIN,
        });
        const authenticator2 = new VirtualAuthenticator({
          origin: TEST_RP.origin,
          aaguid: KNOWN_AAGUIDS.GOOGLE_PASSWORD_MANAGER,
        });

        // Register two passkeys
        await registerPasskey(db, user.id, user.email, authenticator1);
        await registerPasskey(db, user.id, user.email, authenticator2);

        // List passkeys via router handler
        const ctx = await createUserAPIContext(db, user.id);
        const passkeys = await call(router.me.passkeys.list, undefined, {
          context: ctx,
        });

        expect(passkeys).toHaveLength(2);

        // Verify first passkey data (router returns id, name, createdAt, lastUsedAt)
        const icloudPasskey = passkeys.find(
          (p) => p.name === "iCloud Keychain",
        );
        if (!icloudPasskey) {
          throw new Error("Expected iCloud Keychain passkey to exist");
        }
        expect(icloudPasskey.id).toBeGreaterThan(0);
        expect(icloudPasskey.createdAt).toBeInstanceOf(Date);
        expect(icloudPasskey.lastUsedAt).toBeNull();

        // Verify second passkey data
        const googlePasskey = passkeys.find(
          (p) => p.name === "Google Password Manager",
        );
        if (!googlePasskey) {
          throw new Error("Expected Google Password Manager passkey to exist");
        }
      });
    });

    test("passkey stores correct device type and backup status", async () => {
      await withTestTransaction(getSharedDb(), async (db) => {
        const user = await createTestUser(db, {
          email: "device-type@test.com",
        });
        const authenticator = new VirtualAuthenticator({
          origin: TEST_RP.origin,
        });

        await registerPasskey(db, user.id, user.email, authenticator);

        const passkeys = await getUserPasskeys(db, user.id);
        expect(passkeys).toHaveLength(1);
        const firstPasskey = expectFirst(passkeys, "Expected passkey to exist");

        // Virtual authenticator creates singleDevice passkeys (no backup flags set)
        expect(firstPasskey.deviceType).toBe("singleDevice");
        expect(firstPasskey.backupEligible).toBe(false);
        expect(firstPasskey.backupStatus).toBe(false);
      });
    });

    test("renames passkey successfully via router", async () => {
      await withTestTransaction(getSharedDb(), async (db) => {
        const user = await createTestUser(db, {
          email: "rename-test@test.com",
        });
        const authenticator = new VirtualAuthenticator({
          origin: TEST_RP.origin,
        });

        await registerPasskey(db, user.id, user.email, authenticator);

        const ctx = await createUserAPIContext(db, user.id);
        let passkeys = await call(router.me.passkeys.list, undefined, {
          context: ctx,
        });
        let firstPasskey = expectFirst(passkeys, "Expected passkey to exist");
        const passkeyId = firstPasskey.id;
        const originalName = firstPasskey.name;

        // Rename the passkey via router handler
        const newName = "My MacBook Pro";
        await call(
          router.me.passkeys.rename,
          { passkeyId, name: newName },
          { context: ctx },
        );

        // Verify name changed
        passkeys = await call(router.me.passkeys.list, undefined, {
          context: ctx,
        });
        firstPasskey = expectFirst(passkeys, "Expected passkey to exist");
        expect(firstPasskey.name).toBe(newName);
        expect(firstPasskey.name).not.toBe(originalName);
      });
    });

    test("rename does not affect other user's passkeys", async () => {
      await withTestTransaction(getSharedDb(), async (db) => {
        const user1 = await createTestUser(db, {
          email: "rename-user1@test.com",
        });
        const user2 = await createTestUser(db, {
          email: "rename-user2@test.com",
        });
        const auth1 = new VirtualAuthenticator({ origin: TEST_RP.origin });
        const auth2 = new VirtualAuthenticator({ origin: TEST_RP.origin });

        await registerPasskey(db, user1.id, user1.email, auth1);
        await registerPasskey(db, user2.id, user2.email, auth2);

        const ctx1 = await createUserAPIContext(db, user1.id);
        const ctx2 = await createUserAPIContext(db, user2.id);

        const user2Passkeys = await call(router.me.passkeys.list, undefined, {
          context: ctx2,
        });
        const user2FirstPasskey = user2Passkeys[0];
        if (!user2FirstPasskey) {
          throw new Error("Expected user2 passkey to exist");
        }

        // Try to rename user2's passkey using user1's context (should throw NOT_FOUND)
        try {
          await call(
            router.me.passkeys.rename,
            { passkeyId: user2FirstPasskey.id, name: "Hacked Name" },
            { context: ctx1 },
          );
          throw new Error("Expected rename to fail with NOT_FOUND");
        } catch (error) {
          expect(error).toBeInstanceOf(Error);
          expect((error as Error).message).toContain("Passkey not found");
        }

        // User2's passkey should be unchanged
        const user2PasskeysAfter = await call(
          router.me.passkeys.list,
          undefined,
          {
            context: ctx2,
          },
        );
        const user2FirstPasskeyAfter = user2PasskeysAfter[0];
        if (!user2FirstPasskeyAfter) {
          throw new Error("Expected user2 passkey to exist after");
        }
        expect(user2FirstPasskeyAfter.name).toBe(user2FirstPasskey.name);
      });
    });

    // Note: This test uses getSharedDb() directly because the delete passkey
    // procedure internally uses db.transaction(), and Kysely doesn't support nested transactions.
    test("deletes passkey when user has password via router", async () => {
      const db = getSharedDb();
      const user = await createTestUser(db, {
        email: "delete-with-password@test.com",
        passwordHash: "fake-password-hash",
      });
      const authenticator = new VirtualAuthenticator({
        origin: TEST_RP.origin,
      });

      await registerPasskey(db, user.id, user.email, authenticator);

      const ctx = await createUserAPIContext(db, user.id);
      let passkeys = await call(router.me.passkeys.list, undefined, {
        context: ctx,
      });
      expect(passkeys).toHaveLength(1);
      const firstPasskey = expectFirst(passkeys, "Expected passkey to exist");
      const passkeyId = firstPasskey.id;

      // Delete the passkey via router (should work because user has password)
      await call(router.me.passkeys.delete, { passkeyId }, { context: ctx });

      // Verify passkey is deleted
      passkeys = await call(router.me.passkeys.list, undefined, {
        context: ctx,
      });
      expect(passkeys).toHaveLength(0);
    });

    // Note: This test uses getSharedDb() directly because the delete passkey
    // procedure internally uses db.transaction(), and Kysely doesn't support nested transactions.
    test("deletes passkey when user has multiple passkeys via router", async () => {
      const db = getSharedDb();
      const user = await createTestUser(db, {
        email: "delete-multi@test.com",
      });
      const auth1 = new VirtualAuthenticator({ origin: TEST_RP.origin });
      const auth2 = new VirtualAuthenticator({ origin: TEST_RP.origin });

      await registerPasskey(db, user.id, user.email, auth1);
      await registerPasskey(db, user.id, user.email, auth2);

      const ctx = await createUserAPIContext(db, user.id);
      let passkeys = await call(router.me.passkeys.list, undefined, {
        context: ctx,
      });
      expect(passkeys).toHaveLength(2);
      let firstPasskey = expectFirst(passkeys, "Expected passkey to exist");
      const firstPasskeyId = firstPasskey.id;

      // Delete first passkey via router (should work because user has another)
      await call(
        router.me.passkeys.delete,
        { passkeyId: firstPasskeyId },
        { context: ctx },
      );

      // Verify only one passkey remains
      passkeys = await call(router.me.passkeys.list, undefined, {
        context: ctx,
      });
      expect(passkeys).toHaveLength(1);
      firstPasskey = expectFirst(passkeys, "Expected passkey to exist");
      expect(firstPasskey.id).not.toBe(firstPasskeyId);
    });

    // Note: This test uses getSharedDb() directly because the delete passkey
    // procedure internally uses db.transaction(), and Kysely doesn't support nested transactions.
    test("prevents deleting last passkey without password via router", async () => {
      const db = getSharedDb();
      const user = await createTestUser(db, {
        email: "delete-last@test.com",
        // No password set
      });
      const authenticator = new VirtualAuthenticator({
        origin: TEST_RP.origin,
      });

      await registerPasskey(db, user.id, user.email, authenticator);

      const ctx = await createUserAPIContext(db, user.id);
      const passkeys = await call(router.me.passkeys.list, undefined, {
        context: ctx,
      });
      expect(passkeys).toHaveLength(1);
      const firstPasskey = expectFirst(passkeys, "Expected passkey to exist");
      const passkeyId = firstPasskey.id;

      // Try to delete the only passkey via router (should fail)
      try {
        await call(router.me.passkeys.delete, { passkeyId }, { context: ctx });
        throw new Error("Expected deletion to fail");
      } catch (error) {
        expect(error).toBeInstanceOf(Error);
        expect((error as Error).message).toContain(
          "Cannot delete the last passkey when you have no password set",
        );
      }

      // Verify passkey still exists
      const passkeysAfter = await call(router.me.passkeys.list, undefined, {
        context: ctx,
      });
      expect(passkeysAfter).toHaveLength(1);
    });

    // Note: This test uses getSharedDb() directly because the delete passkey
    // procedure internally uses db.transaction(), and Kysely doesn't support nested transactions.
    test("delete does not affect other user's passkeys via router", async () => {
      const db = getSharedDb();
      const user1 = await createTestUser(db, {
        email: "delete-user1@test.com",
        passwordHash: "fake-hash",
      });
      const user2 = await createTestUser(db, {
        email: "delete-user2@test.com",
        passwordHash: "fake-hash",
      });
      const auth1 = new VirtualAuthenticator({ origin: TEST_RP.origin });
      const auth2 = new VirtualAuthenticator({ origin: TEST_RP.origin });

      await registerPasskey(db, user1.id, user1.email, auth1);
      await registerPasskey(db, user2.id, user2.email, auth2);

      const ctx1 = await createUserAPIContext(db, user1.id);
      const ctx2 = await createUserAPIContext(db, user2.id);

      const user2Passkeys = await call(router.me.passkeys.list, undefined, {
        context: ctx2,
      });
      const user2FirstPasskey = user2Passkeys[0];
      if (!user2FirstPasskey) {
        throw new Error("Expected user2 passkey to exist");
      }

      // Try to delete user2's passkey using user1's context (should throw NOT_FOUND)
      try {
        await call(
          router.me.passkeys.delete,
          { passkeyId: user2FirstPasskey.id },
          { context: ctx1 },
        );
        throw new Error("Expected delete to fail with NOT_FOUND");
      } catch (error) {
        expect(error).toBeInstanceOf(Error);
        expect((error as Error).message).toContain("Passkey not found");
      }

      // User2's passkey should still exist
      const user2PasskeysAfter = await call(
        router.me.passkeys.list,
        undefined,
        {
          context: ctx2,
        },
      );
      expect(user2PasskeysAfter).toHaveLength(1);
    });

    test("passkey credentialId is unique and stored correctly", async () => {
      await withTestTransaction(getSharedDb(), async (db) => {
        const user = await createTestUser(db, {
          email: "credential-id@test.com",
        });
        const auth1 = new VirtualAuthenticator({ origin: TEST_RP.origin });
        const auth2 = new VirtualAuthenticator({ origin: TEST_RP.origin });

        await registerPasskey(db, user.id, user.email, auth1);
        await registerPasskey(db, user.id, user.email, auth2);

        const passkeys = await getUserPasskeys(db, user.id);
        expect(passkeys).toHaveLength(2);
        const firstPasskey = passkeys[0];
        const secondPasskey = passkeys[1];
        if (!(firstPasskey && secondPasskey)) {
          throw new Error("Expected both passkeys to exist");
        }

        // Credential IDs should be unique
        expect(firstPasskey.credentialId).not.toBe(secondPasskey.credentialId);

        // Credential IDs should be base64url encoded
        expect(firstPasskey.credentialId).toMatch(/^[A-Za-z0-9_-]+$/);
        expect(secondPasskey.credentialId).toMatch(/^[A-Za-z0-9_-]+$/);
      });
    });

    test("passkey transports are stored and retrieved correctly", async () => {
      await withTestTransaction(getSharedDb(), async (db) => {
        const user = await createTestUser(db, {
          email: "transports@test.com",
        });
        const authenticator = new VirtualAuthenticator({
          origin: TEST_RP.origin,
        });

        await registerPasskey(db, user.id, user.email, authenticator);

        const passkeys = await getUserPasskeys(db, user.id);
        expect(passkeys).toHaveLength(1);
        const firstPasskey = expectFirst(passkeys, "Expected passkey to exist");

        // Virtual authenticator sets transports to ["internal", "hybrid"]
        expect(firstPasskey.transports).toContain("internal");
        expect(firstPasskey.transports).toContain("hybrid");
      });
    });
  });
}); // Close outer describe.skipIf