import assert from 'node:assert/strict';
import test from 'node:test';
import {
  attachPortalMindSpacePageCoreRoutes,
  createMindSpacePageListSyncScheduler,
} from './portal-mindspace-page-core-routes.mjs';

function createRouterRecorder() {
  const routes = new Map();
  return {
    routes,
    get(path, handler) {
      routes.set(`GET ${path}`, handler);
    },
    post(path, handler) {
      routes.set(`POST ${path}`, handler);
    },
    put(path, handler) {
      routes.set(`PUT ${path}`, handler);
    },
    delete(path, handler) {
      routes.set(`DELETE ${path}`, handler);
    },
  };
}

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

function createRequest(overrides = {}) {
  return {
    body: {},
    query: {},
    params: { pageId: 'page-1' },
    currentUser: { id: 'user-1' },
    ip: '127.0.0.1',
    ...overrides,
  };
}

function createDependencies(overrides = {}) {
  const calls = {
    data: [],
    errors: [],
    routeErrors: [],
    sync: [],
    enabled: [],
  };
  return {
    calls,
    dependencies: {
      getMindSpacePages: () => ({}),
      getMindSpacePublications: () => null,
      getMindSpace: () => ({ getQuota: async () => ({ used: 1 }) }),
      getMindSpaceAudit: () => null,
      getMindSpacePageLiveEdit: () => ({}),
      getMindSpacePageEditSession: () => ({}),
      getUserAuth: () => ({ canUseChat: async () => ({ ok: true }) }),
      async syncUserGeneratedPages(userId) {
        calls.sync.push(userId);
      },
      ownsAgentSession: async () => true,
      ensureMindSpaceEnabled(res, req) {
        calls.enabled.push({ res, req });
        return true;
      },
      sendData(res, req, data, status = 200) {
        calls.data.push({ res, req, data, status });
        return res.status(status).json({ data });
      },
      sendError(res, req, status, code, message) {
        calls.errors.push({ res, req, status, code, message });
        return res.status(status).json({ error: { code, message } });
      },
      handleMindSpaceError(res, req, error) {
        calls.routeErrors.push({ res, req, error });
        return res.status(418).json({ mapped: error.message });
      },
      ...overrides,
    },
  };
}

test('page core module preserves route inventory and order', () => {
  const api = createRouterRecorder();
  attachPortalMindSpacePageCoreRoutes(
    api,
    createDependencies().dependencies,
  );
  assert.deepEqual([...api.routes.keys()], [
    'POST /mindspace/v1/pages',
    'GET /mindspace/v1/pages',
    'GET /mindspace/v1/pages/:pageId',
    'DELETE /mindspace/v1/pages/:pageId',
    'GET /mindspace/v1/pages/:pageId/delete-preview',
    'PUT /mindspace/v1/pages/:pageId',
    'POST /mindspace/v1/pages/:pageId/live-edit/bind',
    'POST /mindspace/v1/pages/:pageId/live-edit/fork-session',
    'POST /mindspace/v1/pages/:pageId/live-edit/close-session',
    'GET /mindspace/v1/pages/:pageId/live-edit/revision',
  ]);
});

test('create and list preserve payload mapping, sync, and pagination envelope', async () => {
  const received = [];
  const api = createRouterRecorder();
  const setup = createDependencies({
    getMindSpacePages: () => ({
      async createPage(userId, input) {
        received.push({ kind: 'create', userId, input });
        return { id: 'page-1' };
      },
      async listPages(userId, input) {
        received.push({ kind: 'list', userId, input });
        return {
          items: [{ id: 'page-1' }],
          total: 1,
          limit: 20,
          offset: 4,
          hasMore: false,
        };
      },
    }),
  });
  attachPortalMindSpacePageCoreRoutes(api, setup.dependencies);

  const createRes = createResponseRecorder();
  await api.routes.get('POST /mindspace/v1/pages')(
    createRequest({
      body: {
        title: 'Title',
        summary: 'Summary',
        content: '<h1>Page</h1>',
        content_format: 'html',
        template_id: 'template-1',
        page_type: 'html',
        category_code: 'draft',
      },
    }),
    createRes,
  );
  assert.equal(createRes.statusCode, 201);
  assert.equal(received[0].input.contentFormat, 'html');

  const listRes = createResponseRecorder();
  await api.routes.get('GET /mindspace/v1/pages')(
    createRequest({
      query: {
        status: 'active',
        category_code: 'draft',
        limit: '20',
        offset: '4',
      },
    }),
    listRes,
  );
  assert.deepEqual(setup.calls.sync, ['user-1']);
  assert.deepEqual(received[1].input, {
    status: 'active',
    categoryCode: 'draft',
    limit: 20,
    offset: 4,
  });
  assert.deepEqual(listRes.body.page, {
    total: 1,
    limit: 20,
    offset: 4,
    has_more: false,
    next_cursor: null,
  });
});

test('list pages responds without waiting for background workspace sync', async () => {
  let syncStarted = 0;
  let resolveSync;
  const received = [];
  const api = createRouterRecorder();
  const setup = createDependencies({
    getMindSpacePages: () => ({
      async listPages(userId, input) {
        received.push({ userId, input });
        return {
          items: [{ id: 'page-1' }],
          total: 1,
          limit: 6,
          offset: 0,
          hasMore: false,
        };
      },
    }),
    syncUserGeneratedPages() {
      syncStarted += 1;
      return new Promise((resolve) => {
        resolveSync = resolve;
      });
    },
  });
  attachPortalMindSpacePageCoreRoutes(api, setup.dependencies);

  const listRes = createResponseRecorder();
  await api.routes.get('GET /mindspace/v1/pages')(
    createRequest({ query: { limit: '6', offset: '0' } }),
    listRes,
  );

  assert.equal(syncStarted, 1);
  assert.equal(received.length, 1);
  assert.deepEqual(listRes.body.data, [{ id: 'page-1' }]);

  resolveSync?.({ created: 0, updated: 0, skipped: 0 });
});

test('page list background sync coalesces in-flight and throttled requests', async () => {
  let currentTime = 1_000;
  const calls = [];
  const resolvers = [];
  const scheduler = createMindSpacePageListSyncScheduler({
    now: () => currentTime,
    minIntervalMs: 30_000,
    syncUserGeneratedPages(userId) {
      calls.push(userId);
      return new Promise((resolve) => {
        resolvers.push(resolve);
      });
    },
  });

  const first = scheduler('user-1');
  const second = scheduler('user-1');
  assert.equal(first, second);
  await Promise.resolve();
  assert.deepEqual(calls, ['user-1']);

  resolvers.shift()?.({ created: 0, updated: 0, skipped: 0 });
  await first;

  currentTime += 1_000;
  assert.equal(scheduler('user-1'), null);
  assert.deepEqual(calls, ['user-1']);

  currentTime += 30_000;
  const third = scheduler('user-1');
  await Promise.resolve();
  assert.deepEqual(calls, ['user-1', 'user-1']);
  resolvers.shift()?.({ created: 0, updated: 0, skipped: 0 });
  await third;
});

test('get and update preserve parallel lookup and version mapping', async () => {
  const api = createRouterRecorder();
  const setup = createDependencies({
    getMindSpacePages: () => ({
      getPage: async () => ({ id: 'page-1', title: 'Page' }),
      listVersions: async () => [{ id: 'version-1' }],
      async updatePage(userId, pageId, input) {
        assert.equal(userId, 'user-1');
        assert.equal(pageId, 'page-1');
        assert.deepEqual(input, {
          expectedVersion: 2,
          title: 'Updated',
          summary: undefined,
          content: 'Body',
          templateId: undefined,
          pageType: undefined,
          changeNote: 'edit',
        });
        return { id: pageId, versionNo: 3 };
      },
    }),
    getMindSpacePublications: () => ({
      getCurrent: async () => ({ id: 'publication-1' }),
    }),
  });
  attachPortalMindSpacePageCoreRoutes(api, setup.dependencies);

  const getRes = createResponseRecorder();
  await api.routes.get('GET /mindspace/v1/pages/:pageId')(
    createRequest(),
    getRes,
  );
  assert.equal(getRes.body.data.publication.id, 'publication-1');
  assert.equal(getRes.body.data.versions[0].id, 'version-1');

  const updateRes = createResponseRecorder();
  await api.routes.get('PUT /mindspace/v1/pages/:pageId')(
    createRequest({
      body: {
        expected_version: 2,
        title: 'Updated',
        content: 'Body',
        change_note: 'edit',
      },
    }),
    updateRes,
  );
  assert.equal(updateRes.body.data.versionNo, 3);
});

test('delete and delete-preview preserve cleanup, quota, audit, and feature gate', async () => {
  const audit = [];
  const api = createRouterRecorder();
  const setup = createDependencies({
    getMindSpacePages: () => ({
      async deletePage(userId, pageId, options) {
        assert.equal(userId, 'user-1');
        assert.equal(pageId, 'page-1');
        assert.deepEqual(options, { removeFromPlaza: true });
        return {
          offlinedPublicationCount: 1,
          hiddenPlazaPostCount: 2,
          deletedAssetCount: 3,
          freedBytes: 4,
        };
      },
      async getDeletePreview() {
        return { pageId: 'page-1', assetCount: 3 };
      },
    }),
    getMindSpaceAudit: () => ({
      async write(entry) {
        audit.push(entry);
      },
    }),
  });
  attachPortalMindSpacePageCoreRoutes(api, setup.dependencies);

  const deleteRes = createResponseRecorder();
  await api.routes.get('DELETE /mindspace/v1/pages/:pageId')(
    createRequest({ query: { remove_from_plaza: '1' } }),
    deleteRes,
  );
  assert.equal(deleteRes.body.data.quota.used, 1);
  assert.equal(audit[0].action, 'page.delete');
  assert.deepEqual(audit[0].detail, {
    offlinedPublicationCount: 1,
    hiddenPlazaPostCount: 2,
    deletedAssetCount: 3,
    freedBytes: 4,
  });

  const previewRes = createResponseRecorder();
  await api.routes.get(
    'GET /mindspace/v1/pages/:pageId/delete-preview',
  )(createRequest(), previewRes);
  assert.equal(previewRes.body.data.assetCount, 3);
  assert.equal(setup.calls.enabled.length, 2);
});

test('live edit bind preserves validation, ownership, page check, and binding', async () => {
  const calls = [];
  const api = createRouterRecorder();
  const setup = createDependencies({
    getMindSpacePages: () => ({
      async getPage(userId, pageId) {
        calls.push({ kind: 'page', userId, pageId });
      },
    }),
    ownsAgentSession: async (userId, sessionId) => {
      calls.push({ kind: 'owns', userId, sessionId });
      return true;
    },
    getMindSpacePageLiveEdit: () => ({
      bindSession(input) {
        calls.push({ kind: 'bind', input });
        return { revision: 1 };
      },
    }),
  });
  attachPortalMindSpacePageCoreRoutes(api, setup.dependencies);
  const res = createResponseRecorder();
  await api.routes.get(
    'POST /mindspace/v1/pages/:pageId/live-edit/bind',
  )(
    createRequest({
      body: {
        session_id: 'session-1',
        parent_session_id: 'parent-1',
      },
    }),
    res,
  );
  assert.deepEqual(calls.map((call) => call.kind), [
    'owns',
    'page',
    'bind',
  ]);
  assert.deepEqual(calls[2].input, {
    userId: 'user-1',
    sessionId: 'session-1',
    pageId: 'page-1',
    parentSessionId: 'parent-1',
  });

  const deniedApi = createRouterRecorder();
  const denied = createDependencies({
    getMindSpacePageLiveEdit: () => ({}),
    ownsAgentSession: async () => false,
  });
  attachPortalMindSpacePageCoreRoutes(
    deniedApi,
    denied.dependencies,
  );
  const deniedRes = createResponseRecorder();
  await deniedApi.routes.get(
    'POST /mindspace/v1/pages/:pageId/live-edit/bind',
  )(
    createRequest({ body: { session_id: 'session-2' } }),
    deniedRes,
  );
  assert.equal(deniedRes.statusCode, 403);
  assert.equal(denied.calls.errors[0].code, 'forbidden');
});

test('live edit fork, close, and revision preserve service contracts', async () => {
  const calls = [];
  const api = createRouterRecorder();
  const setup = createDependencies({
    getUserAuth: () => ({
      async canUseChat(userId) {
        calls.push({ kind: 'gate', userId });
        return { ok: true };
      },
    }),
    getMindSpacePageEditSession: () => ({
      async forkSession(input) {
        calls.push({ kind: 'fork', input });
        return { sessionId: 'fork-1' };
      },
      async closeSession(input) {
        calls.push({ kind: 'close', input });
        return { closed: true };
      },
    }),
    getMindSpacePageLiveEdit: () => ({
      async getRevisionSnapshot(userId, pageId) {
        calls.push({ kind: 'revision', userId, pageId });
        return { revision: 7 };
      },
    }),
  });
  attachPortalMindSpacePageCoreRoutes(api, setup.dependencies);

  await api.routes.get(
    'POST /mindspace/v1/pages/:pageId/live-edit/fork-session',
  )(
    createRequest({
      body: {
        parent_session_id: 'parent-1',
        h5_api_base: ' https://api.example ',
      },
    }),
    createResponseRecorder(),
  );
  assert.equal(calls[1].input.h5ApiBase, 'https://api.example');

  await api.routes.get(
    'POST /mindspace/v1/pages/:pageId/live-edit/close-session',
  )(
    createRequest({
      body: {
        session_id: 'session-1',
        parent_session_id: 'parent-1',
        summary: 'done',
      },
    }),
    createResponseRecorder(),
  );
  assert.equal(calls[2].input.summary, 'done');

  const revisionRes = createResponseRecorder();
  await api.routes.get(
    'GET /mindspace/v1/pages/:pageId/live-edit/revision',
  )(createRequest(), revisionRes);
  assert.equal(revisionRes.body.data.revision, 7);
});

test('page core routes preserve unavailable and mapped error responses', async () => {
  const unavailableApi = createRouterRecorder();
  const unavailable = createDependencies({
    getMindSpacePages: () => null,
  });
  attachPortalMindSpacePageCoreRoutes(
    unavailableApi,
    unavailable.dependencies,
  );
  const unavailableRes = createResponseRecorder();
  await unavailableApi.routes.get('GET /mindspace/v1/pages')(
    createRequest(),
    unavailableRes,
  );
  assert.equal(unavailableRes.statusCode, 503);

  const failureApi = createRouterRecorder();
  const failure = createDependencies({
    getMindSpacePages: () => ({
      async listPages() {
        throw new Error('list failed');
      },
    }),
  });
  attachPortalMindSpacePageCoreRoutes(
    failureApi,
    failure.dependencies,
  );
  const failureRes = createResponseRecorder();
  await failureApi.routes.get('GET /mindspace/v1/pages')(
    createRequest(),
    failureRes,
  );
  assert.equal(failureRes.statusCode, 418);
  assert.equal(failure.calls.routeErrors[0].error.message, 'list failed');
});