import assert from 'node:assert/strict';
import fs from 'node:fs';
import os from 'node:os';
import path from 'node:path';
import test from 'node:test';
import express from 'express';
import { attachPageDataRoutes, isLegacyPageDataApiPath } from './page-data-routes.mjs';
import { createPageDataService } from './page-data-service.mjs';
import { createUserDataSpaceService } from './user-data-space-service.mjs';

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

function createApiApp({ workspaceRoot, user }) {
  const api = express.Router();
  api.use(express.json());
  api.use((req, _res, next) => {
    req.currentUser = user;
    next();
  });
  const pageDataService = createPageDataService({
    resolveWorkspaceRoot: async () => workspaceRoot,
  });
  attachPageDataRoutes(api, {
    sendData: (res, _req, data, status = 200) => res.status(status).json({ data }),
    sendError: (res, _req, status, code, message) => res.status(status).json({ error: { code, message } }),
    getPageDataService: () => pageDataService,
  });
  const app = express();
  app.use('/api', api);
  return app;
}

async function requestJson(app, method, url, body) {
  const server = app.listen(0);
  try {
    const { port } = server.address();
    const response = await fetch(`http://127.0.0.1:${port}${url}`, {
      method,
      headers: body ? { 'content-type': 'application/json' } : undefined,
      body: body ? JSON.stringify(body) : undefined,
    });
    const payload = await response.json();
    return { status: response.status, body: payload };
  } finally {
    await new Promise((resolve) => server.close(resolve));
  }
}

test('page data routes allow logged-in owner to read and insert dataset rows', async () => {
  const workspaceRoot = fs.mkdtempSync(path.join(os.tmpdir(), 'page-data-api-'));
  const service = createUserDataSpaceService({ workspaceRoot });
  await service.executeSql(`CREATE TABLE feedback (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    message TEXT NOT NULL,
    created_at TEXT
  );`);
  await service.upsertDataset({
    name: 'feedback',
    table: 'feedback',
    actions: ['read', 'insert'],
    columns: {
      read: ['id', 'message', 'created_at'],
      insert: ['message'],
    },
  });

  const app = createApiApp({
    workspaceRoot,
    user: { id: 'user-1', workspaceRoot },
  });

  const inserted = await requestJson(app, 'POST', '/api/admin/page-data/feedback/rows', {
    message: '很好用',
  });
  assert.equal(inserted.status, 201);
  assert.equal(inserted.body.data.row.message, '很好用');

  const listed = await requestJson(app, 'GET', '/api/admin/page-data/feedback?limit=10');
  assert.equal(listed.status, 200);
  assert.equal(listed.body.data.rows.length, 1);

  const schema = await requestJson(app, 'GET', '/api/admin/page-data/feedback/schema');
  assert.equal(schema.status, 200);
  assert.equal(schema.body.data.dataset.name, 'feedback');

  const stats = await requestJson(app, 'GET', '/api/admin/page-data/feedback/stats');
  assert.equal(stats.status, 200);
  assert.equal(stats.body.data.total, 1);
});

test('page data routes allow owner update and soft delete', async () => {
  const workspaceRoot = fs.mkdtempSync(path.join(os.tmpdir(), 'page-data-api-crud-'));
  const service = createUserDataSpaceService({ workspaceRoot });
  await service.executeSql(`CREATE TABLE tasks (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    title TEXT NOT NULL,
    status TEXT DEFAULT 'open',
    created_at TEXT,
    deleted_at TEXT,
    deleted_by TEXT,
    updated_at TEXT
  );`);
  await service.upsertDataset({
    name: 'tasks',
    table: 'tasks',
    actions: ['read', 'insert', 'update', 'soft_delete'],
    columns: {
      read: ['id', 'title', 'status', 'created_at'],
      insert: ['title'],
      update: ['status'],
      soft_delete: ['id'],
    },
  });

  const app = createApiApp({
    workspaceRoot,
    user: { id: 'user-1', workspaceRoot },
  });

  const inserted = await requestJson(app, 'POST', '/api/admin/page-data/tasks/rows', { title: '待办' });
  assert.equal(inserted.status, 201);
  const rowId = inserted.body.data.row.id;

  const updated = await requestJson(app, 'PATCH', `/api/admin/page-data/tasks/rows/${rowId}`, {
    status: 'done',
  });
  assert.equal(updated.status, 200);
  assert.equal(updated.body.data.row.status, 'done');

  const deleted = await requestJson(app, 'DELETE', `/api/admin/page-data/tasks/rows/${rowId}`);
  assert.equal(deleted.status, 200);
  assert.equal(deleted.body.data.deleted, true);

  const listed = await requestJson(app, 'GET', '/api/admin/page-data/tasks?limit=10');
  assert.equal(listed.status, 200);
  assert.equal(listed.body.data.rows.length, 0);
});

test('page data routes reject unauthorized dataset action', async () => {
  const workspaceRoot = fs.mkdtempSync(path.join(os.tmpdir(), 'page-data-api-deny-'));
  const service = createUserDataSpaceService({ workspaceRoot });
  await service.executeSql(`CREATE TABLE hidden (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    secret TEXT NOT NULL
  );`);
  await service.upsertDataset({
    name: 'hidden',
    table: 'hidden',
    actions: ['insert'],
    columns: { insert: ['secret'] },
  });

  const app = createApiApp({
    workspaceRoot,
    user: { id: 'user-1', workspaceRoot },
  });

  const denied = await requestJson(app, 'GET', '/api/admin/page-data/hidden');
  assert.equal(denied.status, 403);
  assert.equal(denied.body.error.code, 'action_not_allowed');
});

test('legacy page data API is permanently unavailable', async () => {
  const workspaceRoot = fs.mkdtempSync(path.join(os.tmpdir(), 'page-data-api-legacy-'));
  const app = createApiApp({ workspaceRoot, user: { id: 'user-1', workspaceRoot } });

  const blocked = await requestJson(app, 'POST', '/api/page-data/notes/rows', { content: '旧页面' });
  assert.equal(blocked.status, 410);
  assert.equal(blocked.body.error.code, 'legacy_page_data_api_removed');
});

test('legacy API path detector does not include the admin namespace', () => {
  assert.equal(isLegacyPageDataApiPath('/page-data/notes/rows'), true);
  assert.equal(isLegacyPageDataApiPath('/admin/page-data/notes/rows'), false);
});

test('page data routes require login', async () => {
  const api = express.Router();
  attachPageDataRoutes(api, {
    sendData: (res, _req, data) => res.json({ data }),
    sendError: (res, _req, status, code, message) => res.status(status).json({ error: { code, message } }),
    getPageDataService: () => createPageDataService({ resolveWorkspaceRoot: async () => '/tmp' }),
  });
  const handler = api.stack.find((layer) => layer.route?.path === '/admin/page-data/:dataset')?.route.stack[0].handle;
  const res = createResponseRecorder();
  await handler({ params: { dataset: 'demo' } }, res);
  assert.equal(res.statusCode, 401);
  assert.equal(res.body.error.code, 'unauthorized');
});