import { describe, expect, it, beforeEach } from 'vitest';

import { makeMockClient } from './__tests__/mockClient';
import {
  fetchUserKeyBlob,
  uploadUserKeyBlob,
  tryUnlockUserKey,
  recordPinAttempt,
  resetUserKey,
} from './userKey';

const USER_ID = '22222222-2222-2222-2222-222222222222';

describe('auth/userKey', () => {
  let mock: ReturnType<typeof makeMockClient>;
  beforeEach(() => { mock = makeMockClient(USER_ID); });

  it('tryUnlockUserKey reports exists=false when row missing', async () => {
    mock.setRpcResponse('try_unlock_user_key', { data: { exists: false }, error: null });
    const res = await tryUnlockUserKey(mock.client, USER_ID);
    expect(res.exists).toBe(false);
    expect(mock.rpcCalls).toEqual([{ name: 'try_unlock_user_key', params: { p_user_id: USER_ID } }]);
  });

  it('tryUnlockUserKey returns ciphertext + salt when unlocked', async () => {
    mock.setRpcResponse('try_unlock_user_key', {
      data: {
        exists: true, locked: false,
        sealed_private_key: 'AAA=', salt: 'BBB=',
        kdf_params: { algo: 'argon2id', preset: 'moderate', opslimit: 3, memlimit: 268435456 },
        recovery_sealed_private_key: null, recovery_salt: null,
        failed_attempts: 0, failed_recovery_attempts: 0,
        recovery_locked_until: null, key_version: 1,
      },
      error: null,
    });
    const res = await tryUnlockUserKey(mock.client, USER_ID);
    expect(res.exists).toBe(true); if (!res.exists) throw new Error();
    expect(res.locked).toBe(false); if (res.locked) throw new Error();
    expect(res.sealedPrivateKey).toBeInstanceOf(Uint8Array);
    expect(res.salt).toBeInstanceOf(Uint8Array);
    expect(res.kdfParams.preset).toBe('moderate');
  });

  it('tryUnlockUserKey returns lockout state without ciphertext', async () => {
    const lockedUntil = '2026-05-16T00:00:00Z';
    mock.setRpcResponse('try_unlock_user_key', {
      data: { exists: true, locked: true, locked_until: lockedUntil },
      error: null,
    });
    const res = await tryUnlockUserKey(mock.client, USER_ID);
    expect(res.exists).toBe(true); if (!res.exists) throw new Error();
    expect(res.locked).toBe(true); if (!res.locked) throw new Error();
    expect(res.lockedUntil).toBe(lockedUntil);
  });

  it('uploadUserKeyBlob upserts via reset_user_key RPC', async () => {
    mock.setRpcResponse('reset_user_key', { data: 0, error: null });
    await uploadUserKeyBlob(mock.client, {
      userId: USER_ID,
      publicKey: new Uint8Array([1, 2, 3]),
      sealedPrivateKey: new Uint8Array([4, 5]),
      salt: new Uint8Array([6]),
      kdfParams: { algo: 'argon2id', preset: 'moderate', opslimit: 3, memlimit: 268435456 },
    });
    const params = mock.rpcCalls.at(-1)?.params as Record<string, unknown>;
    expect(mock.rpcCalls.at(-1)?.name).toBe('reset_user_key');
    expect(params.p_user_id).toBe(USER_ID);
    expect(params.p_public_key_b64).toBe('AQID');
    expect(params.p_sealed_private_b64).toBe('BAU=');
    expect(params.p_salt_b64).toBe('Bg==');
    expect(params.p_recovery_sealed_b64).toBeNull();
  });

  it('recordPinAttempt forwards success/recovery flags', async () => {
    mock.setRpcResponse('record_pin_attempt', { data: { failed_attempts: 0 }, error: null });
    await recordPinAttempt(mock.client, USER_ID, false, false);
    expect(mock.rpcCalls.at(-1)?.params).toEqual({
      p_user_id: USER_ID, p_success: false, p_recovery: false,
    });
  });

  it('fetchUserKeyBlob returns null when exists=false', async () => {
    mock.setRpcResponse('try_unlock_user_key', { data: { exists: false }, error: null });
    const res = await fetchUserKeyBlob(mock.client, USER_ID);
    expect(res).toBeNull();
  });

  it('resetUserKey forwards recovery params', async () => {
    mock.setRpcResponse('reset_user_key', { data: 5, error: null });
    const deleted = await resetUserKey(mock.client, {
      userId: USER_ID,
      publicKey: new Uint8Array([1]),
      sealedPrivateKey: new Uint8Array([2]),
      salt: new Uint8Array([3]),
      kdfParams: { algo: 'argon2id', preset: 'moderate', opslimit: 3, memlimit: 1 },
      recoverySealedPrivateKey: new Uint8Array([4]),
      recoverySalt: new Uint8Array([5]),
    });
    expect(deleted).toBe(5);
    const params = mock.rpcCalls.at(-1)?.params as Record<string, unknown>;
    expect(params.p_recovery_sealed_b64).toBe('BA==');
    expect(params.p_recovery_salt_b64).toBe('BQ==');
  });
});