import assert from 'node:assert/strict';
import test from 'node:test';

import { buildApp } from '../../src/app/build-app.js';

const userId = '464e9b49-8617-4d00-af3c-78b3294e1d70';
const methodId = '6833868a-2a1b-4d33-90d1-fc9f2b7be869';
const headers = {
  cookie: 'pokemon_inventory_session=session-token',
  'x-csrf-token': 'csrf-token',
};

function createTestApp(mfaService) {
  return buildApp({
    authenticationService: {
      async authorizeUnsafeRequest(sessionToken, csrfToken) {
        assert.equal(sessionToken, 'session-token');
        assert.equal(csrfToken, 'csrf-token');
        return { userId };
      },
    },
    loginRateLimiter: { async consume() { return { allowed: true }; } },
    mfaService,
  });
}

test('enrolls MFA only for the authenticated user and returns its provisioning URI', async (testContext) => {
  const app = createTestApp({
    async enroll(input) {
      assert.deepEqual(input, { userId, name: 'Authenticator' });
      return { id: methodId, provisioningUri: 'otpauth://totp/example' };
    },
  });
  testContext.after(() => app.close());

  const response = await app.inject({
    method: 'POST',
    url: '/api/v1/auth/mfa/enroll',
    headers,
    payload: { name: 'Authenticator' },
  });

  assert.equal(response.statusCode, 201);
  assert.equal(response.json().data.provisioningUri, 'otpauth://totp/example');
});

test('verifies MFA with CSRF protection and does not expose secret material', async (testContext) => {
  const app = createTestApp({
    async verifyEnrollment(input) {
      assert.deepEqual(input, { userId, methodId, code: '123456' });
      return { id: methodId, name: 'Authenticator', type: 'TOTP', secretCiphertext: 'hidden' };
    },
  });
  testContext.after(() => app.close());

  const response = await app.inject({
    method: 'POST',
    url: '/api/v1/auth/mfa/verify',
    headers,
    payload: { methodId, code: '123456' },
  });

  assert.equal(response.statusCode, 200);
  assert.equal(response.json().data.secretCiphertext, undefined);
  assert.equal(response.json().data.type, 'TOTP');
});

test('rejects MFA enrollment without CSRF validation', async (testContext) => {
  const app = buildApp({
    authenticationService: {
      async authorizeUnsafeRequest() {
        const error = new Error('CSRF validation failed.');
        error.code = 'FORBIDDEN';
        error.statusCode = 403;
        throw error;
      },
    },
    loginRateLimiter: { async consume() { return { allowed: true }; } },
    mfaService: { async enroll() {} },
  });
  testContext.after(() => app.close());

  const response = await app.inject({
    method: 'POST',
    url: '/api/v1/auth/mfa/enroll',
    payload: { name: 'Authenticator' },
  });

  assert.equal(response.statusCode, 403);
  assert.equal(response.json().error.code, 'FORBIDDEN');
});