import assert from 'node:assert/strict';
import test from 'node:test';
import { attachPortalPlazaDiscoveryRoutes } from './portal-plaza-discovery-routes.mjs';

function createRouterRecorder() {
  const routes = new Map();
  return {
    routes,
    get(path, handler) {
      routes.set(path, handler);
    },
  };
}

function createResponseRecorder() {
  return {
    statusCode: 200,
    body: undefined,
    status(code) {
      this.statusCode = code;
      return this;
    },
    json(body) {
      this.body = body;
      return this;
    },
  };
}

function createRouteDependencies(overrides = {}) {
  const calls = {
    data: [],
    errors: [],
    routeErrors: [],
  };
  return {
    calls,
    dependencies: {
      sendData(res, req, data) {
        calls.data.push({ res, req, data });
        return res.json({ data });
      },
      sendError(res, req, status, code, message) {
        calls.errors.push({ res, req, status, code, message });
        return res.status(status).json({ error: { code, message } });
      },
      handleRouteError(res, req, error) {
        calls.routeErrors.push({ res, req, error });
        return res.status(418).json({ mapped: error.message });
      },
      ...overrides,
    },
  };
}

test('portal Plaza discovery module preserves route inventory and order', () => {
  const api = createRouterRecorder();
  attachPortalPlazaDiscoveryRoutes(api);
  assert.deepEqual(
    [...api.routes.keys()],
    ['/plaza/v1/categories', '/plaza/v1/seo/sitemap'],
  );
});

test('GET /plaza/v1/categories preserves Plaza unavailable response', async () => {
  const api = createRouterRecorder();
  const { calls, dependencies } = createRouteDependencies();
  attachPortalPlazaDiscoveryRoutes(api, dependencies);
  const req = {};
  const res = createResponseRecorder();

  await api.routes.get('/plaza/v1/categories')(req, res);

  assert.equal(res.statusCode, 503);
  assert.deepEqual(res.body, {
    error: { code: 'plaza_unavailable', message: 'Plaza 未启用' },
  });
  assert.deepEqual(calls.errors[0], {
    res,
    req,
    status: 503,
    code: 'plaza_unavailable',
    message: 'Plaza 未启用',
  });
});

test('GET /plaza/v1/categories preserves successful response envelope', async () => {
  const api = createRouterRecorder();
  const categories = [{ slug: 'technology', name: '科技' }];
  const { calls, dependencies } = createRouteDependencies({
    getPlazaPosts: () => ({
      async listCategories() {
        return categories;
      },
    }),
  });
  attachPortalPlazaDiscoveryRoutes(api, dependencies);
  const req = {};
  const res = createResponseRecorder();

  await api.routes.get('/plaza/v1/categories')(req, res);

  assert.deepEqual(calls.data[0], {
    res,
    req,
    data: { categories },
  });
  assert.deepEqual(res.body, { data: { categories } });
});

test('GET /plaza/v1/categories preserves route error mapping', async () => {
  const api = createRouterRecorder();
  const failure = new Error('category query failed');
  const { calls, dependencies } = createRouteDependencies({
    getPlazaPosts: () => ({
      async listCategories() {
        throw failure;
      },
    }),
  });
  attachPortalPlazaDiscoveryRoutes(api, dependencies);
  const req = {};
  const res = createResponseRecorder();

  await api.routes.get('/plaza/v1/categories')(req, res);

  assert.deepEqual(calls.routeErrors[0], { res, req, error: failure });
  assert.equal(res.statusCode, 418);
  assert.deepEqual(res.body, { mapped: 'category query failed' });
});

test('GET /plaza/v1/seo/sitemap preserves Plaza and SEO availability gates', async () => {
  const plazaUnavailableApi = createRouterRecorder();
  const plazaUnavailable = createRouteDependencies();
  attachPortalPlazaDiscoveryRoutes(plazaUnavailableApi, plazaUnavailable.dependencies);
  const plazaUnavailableRes = createResponseRecorder();
  await plazaUnavailableApi.routes.get('/plaza/v1/seo/sitemap')(
    { query: {} },
    plazaUnavailableRes,
  );
  assert.equal(plazaUnavailableRes.statusCode, 503);
  assert.equal(plazaUnavailable.calls.errors[0].message, 'Plaza 未启用');

  const seoUnavailableApi = createRouterRecorder();
  const seoUnavailable = createRouteDependencies({
    getPlazaPosts: () => ({}),
  });
  attachPortalPlazaDiscoveryRoutes(seoUnavailableApi, seoUnavailable.dependencies);
  const seoUnavailableRes = createResponseRecorder();
  await seoUnavailableApi.routes.get('/plaza/v1/seo/sitemap')(
    { query: {} },
    seoUnavailableRes,
  );
  assert.equal(seoUnavailableRes.statusCode, 503);
  assert.equal(seoUnavailable.calls.errors[0].message, 'Plaza SEO 未启用');
});

test('GET /plaza/v1/seo/sitemap preserves query forwarding and response envelope', async () => {
  const api = createRouterRecorder();
  const sitemap = { categories: [], posts: [{ id: 'post-1' }], users: [] };
  let receivedLimits = null;
  const { calls, dependencies } = createRouteDependencies({
    getPlazaPosts: () => ({}),
    getPlazaSeo: () => ({
      async listSitemapData(limits) {
        receivedLimits = limits;
        return sitemap;
      },
    }),
  });
  attachPortalPlazaDiscoveryRoutes(api, dependencies);
  const req = { query: { post_limit: '25', user_limit: '10' } };
  const res = createResponseRecorder();

  await api.routes.get('/plaza/v1/seo/sitemap')(req, res);

  assert.deepEqual(receivedLimits, { postLimit: '25', userLimit: '10' });
  assert.deepEqual(calls.data[0], { res, req, data: sitemap });
  assert.deepEqual(res.body, { data: sitemap });
});

test('GET /plaza/v1/seo/sitemap preserves route error mapping', async () => {
  const api = createRouterRecorder();
  const failure = new Error('sitemap query failed');
  const { calls, dependencies } = createRouteDependencies({
    getPlazaPosts: () => ({}),
    getPlazaSeo: () => ({
      async listSitemapData() {
        throw failure;
      },
    }),
  });
  attachPortalPlazaDiscoveryRoutes(api, dependencies);
  const req = { query: {} };
  const res = createResponseRecorder();

  await api.routes.get('/plaza/v1/seo/sitemap')(req, res);

  assert.deepEqual(calls.routeErrors[0], { res, req, error: failure });
  assert.equal(res.statusCode, 418);
  assert.deepEqual(res.body, { mapped: 'sitemap query failed' });
});