/**
 * 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,
  AuthenticatedContext,
  LoginRequestContext,
} from "../../context.js";
import { afterAll, beforeAll, describe, expect, test } from "bun:test";
import { call } from "@orpc/server";
import { VirtualAuthenticator } from "@reviq/virtual-authenticator";
import { router } from "../../router.js";
import { getUserPasskeys } from "../../utils/webauthn.js";
import { KNOWN_AAGUIDS, TEST_RP } from "../helpers/test-constants.js";
import {
  createTestDb,
  createTestUser,
  destroyTestDb,
  runMigrations,
  truncateAllTables,
} from "../helpers/test-db.js";

let db: Kysely<Database> | undefined;

/**
 * Get the database connection, throwing if not initialized
 */
function getDb(): Kysely<Database> {
  if (!db) {
    throw new Error("Database not initialized");
  }
  return db;
}

/**
 * Create an API context (for public endpoints)
 */
function createAPIContext(): APIContext {
  return {
    db: getDb(),
    origin: TEST_RP.origin,
    allowedOrigins: [...TEST_RP.allowedOrigins],
    rpName: TEST_RP.rpName,
    reqHeaders: new Headers(),
    resHeaders: new Headers(),
  };
}

/**
 * Create an authenticated context (for protected endpoints)
 */
function createAuthenticatedContext(
  userId: number,
  email: string,
): AuthenticatedContext {
  return {
    ...createAPIContext(),
    user: {
      id: userId,
      email,
      displayName: null,
      emailVerifiedAt: null,
      isSuperuser: false,
    },
    session: {
      id: "1",
      trustedMode: false,
      createdAt: new Date(),
    },
  };
}

/**
 * Create a login request context (for login flow endpoints)
 */
function createLoginRequestContext(
  userId: number,
  email: string,
): LoginRequestContext {
  return {
    ...createAPIContext(),
    loginRequestId: 1,
    user: {
      id: userId,
      email,
      displayName: null,
      emailVerifiedAt: null,
      isSuperuser: false,
    },
  };
}

/**
 * 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(
  userId: number,
  email: string,
  authenticator: VirtualAuthenticator,
) {
  const apiCtx = createAPIContext();
  const authCtx = createAuthenticatedContext(userId, email);

  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(
  userId: number,
  email: string,
  authenticator: VirtualAuthenticator,
) {
  const loginCtx = createLoginRequestContext(userId, email);

  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 },
  );
}

beforeAll(async () => {
  // Run migrations and create test database connection
  await runMigrations();
  db = createTestDb();
});

afterAll(async () => {
  if (db) {
    await destroyTestDb(db);
  }
});

describe("registration flow", () => {
  beforeAll(async () => {
    await truncateAllTables(getDb());
  });

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

    // 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", "=", String(challengeId))
      .executeTakeFirst();

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

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

    // Create registration options via router
    const apiCtx = createAPIContext();
    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
    const authCtx = createAuthenticatedContext(user.id, user.email);
    await call(
      router.auth.webauthn.verifyRegistration,
      { challengeId, response },
      { context: authCtx },
    );

    // Verify passkey is stored in database
    const passkeys = await getUserPasskeys(getDb(), 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 () => {
    const user = await createTestUser(getDb(), {
      email: "exclude-test@test.com",
    });
    const authenticator = new VirtualAuthenticator({ origin: TEST_RP.origin });
    const apiCtx = createAPIContext();
    const authCtx = createAuthenticatedContext(user.id, user.email);

    // 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 () => {
    const user = await createTestUser(getDb(), {
      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();
    const authCtx = createAuthenticatedContext(user.id, user.email);

    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(getDb(), 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 () => {
    const user = await createTestUser(getDb(), {
      email: "cleanup-test@test.com",
    });
    const authenticator = new VirtualAuthenticator({ origin: TEST_RP.origin });
    const apiCtx = createAPIContext();
    const authCtx = createAuthenticatedContext(user.id, user.email);

    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", "=", String(challengeId))
      .executeTakeFirst();

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

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

    // 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", () => {
  beforeAll(async () => {
    await truncateAllTables(getDb());
  });

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

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

    // Create authentication options via router
    const loginCtx = createLoginRequestContext(user.id, user.email);
    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 () => {
    const user = await createTestUser(getDb(), {
      email: "auth-verify@test.com",
    });
    const authenticator = new VirtualAuthenticator({ origin: TEST_RP.origin });

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

    // Authenticate via router
    const loginCtx = createLoginRequestContext(user.id, user.email);
    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(getDb(), user.id);
    const firstPasskey = expectFirst(passkeys, "Expected passkey to exist");
    expect(firstPasskey.counter).toBe(1);
  });

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

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

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

    // Authenticate via router
    const loginCtx = createLoginRequestContext(user.id, user.email);
    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(getDb(), user.id);
    firstPasskey = expectFirst(passkeys, "Expected passkey to exist");
    expect(firstPasskey.lastUsedAt).not.toBeNull();
  });

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

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

    // Authenticate via router
    const loginCtx = createLoginRequestContext(user.id, user.email);
    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", "=", String(authChallengeId))
      .executeTakeFirst();

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

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

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

    // Create auth options via router
    const loginCtx = createLoginRequestContext(user.id, user.email);
    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();
    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", () => {
  beforeAll(async () => {
    await truncateAllTables(getDb());
  });

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

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

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

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

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

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

    // Create authentication challenge
    const loginCtx = createLoginRequestContext(user.id, user.email);
    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", () => {
  beforeAll(async () => {
    await truncateAllTables(getDb());
  });

  test("register → authenticate → add second passkey → authenticate with either via router", async () => {
    const user = await createTestUser(getDb(), { 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(user.id, user.email, authenticator1);

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

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

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

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

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

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

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

    // Verify initial counter
    let passkeys = await getUserPasskeys(getDb(), 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(user.id, user.email, authenticator);

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

describe("passkey management", () => {
  beforeAll(async () => {
    await truncateAllTables(getDb());
  });

  test("lists passkeys with correct data via router", async () => {
    const user = await createTestUser(getDb(), {
      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(user.id, user.email, authenticator1);
    await registerPasskey(user.id, user.email, authenticator2);

    // List passkeys via router handler
    const ctx = createAuthenticatedContext(user.id, user.email);
    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 () => {
    const user = await createTestUser(getDb(), {
      email: "device-type@test.com",
    });
    const authenticator = new VirtualAuthenticator({ origin: TEST_RP.origin });

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

    const passkeys = await getUserPasskeys(getDb(), 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 () => {
    const user = await createTestUser(getDb(), {
      email: "rename-test@test.com",
    });
    const authenticator = new VirtualAuthenticator({ origin: TEST_RP.origin });

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

    const ctx = createAuthenticatedContext(user.id, user.email);
    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 () => {
    const user1 = await createTestUser(getDb(), {
      email: "rename-user1@test.com",
    });
    const user2 = await createTestUser(getDb(), {
      email: "rename-user2@test.com",
    });
    const auth1 = new VirtualAuthenticator({ origin: TEST_RP.origin });
    const auth2 = new VirtualAuthenticator({ origin: TEST_RP.origin });

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

    const ctx1 = createAuthenticatedContext(user1.id, user1.email);
    const ctx2 = createAuthenticatedContext(user2.id, user2.email);

    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 not work)
    await call(
      router.me.passkeys.rename,
      { passkeyId: user2FirstPasskey.id, name: "Hacked Name" },
      { context: ctx1 },
    );

    // 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);
  });

  test("deletes passkey when user has password via router", async () => {
    const user = await createTestUser(getDb(), {
      email: "delete-with-password@test.com",
      passwordHash: "fake-password-hash",
    });
    const authenticator = new VirtualAuthenticator({ origin: TEST_RP.origin });

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

    const ctx = createAuthenticatedContext(user.id, user.email);
    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);
  });

  test("deletes passkey when user has multiple passkeys via router", async () => {
    const user = await createTestUser(getDb(), {
      email: "delete-multi@test.com",
    });
    const auth1 = new VirtualAuthenticator({ origin: TEST_RP.origin });
    const auth2 = new VirtualAuthenticator({ origin: TEST_RP.origin });

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

    const ctx = createAuthenticatedContext(user.id, user.email);
    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);
  });

  test("prevents deleting last passkey without password via router", async () => {
    const user = await createTestUser(getDb(), {
      email: "delete-last@test.com",
      // No password set
    });
    const authenticator = new VirtualAuthenticator({ origin: TEST_RP.origin });

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

    const ctx = createAuthenticatedContext(user.id, user.email);
    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);
  });

  test("delete does not affect other user's passkeys via router", async () => {
    const user1 = await createTestUser(getDb(), {
      email: "delete-user1@test.com",
      passwordHash: "fake-hash",
    });
    const user2 = await createTestUser(getDb(), {
      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(user1.id, user1.email, auth1);
    await registerPasskey(user2.id, user2.email, auth2);

    const ctx1 = createAuthenticatedContext(user1.id, user1.email);
    const ctx2 = createAuthenticatedContext(user2.id, user2.email);

    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 not affect user2)
    await call(
      router.me.passkeys.delete,
      { passkeyId: user2FirstPasskey.id },
      { context: ctx1 },
    );

    // 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 () => {
    const user = await createTestUser(getDb(), {
      email: "credential-id@test.com",
    });
    const auth1 = new VirtualAuthenticator({ origin: TEST_RP.origin });
    const auth2 = new VirtualAuthenticator({ origin: TEST_RP.origin });

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

    const passkeys = await getUserPasskeys(getDb(), 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 () => {
    const user = await createTestUser(getDb(), {
      email: "transports@test.com",
    });
    const authenticator = new VirtualAuthenticator({ origin: TEST_RP.origin });

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

    const passkeys = await getUserPasskeys(getDb(), 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");
  });
});