#!/usr/bin/env node
/**
 * Local-only E2E proof for the questionnaire -> Page Data API -> PostgreSQL path.
 *
 * The probe uses an existing local user space, creates a uniquely named survey
 * table/dataset and page policy, submits one answer through the public HTTP API,
 * verifies the row directly in PostgreSQL, and removes all probe objects.
 */
import assert from 'node:assert/strict';
import fs from 'node:fs';
import path from 'node:path';
import { fileURLToPath } from 'node:url';
import express from 'express';
import pg from 'pg';
import { attachPageDataRoutes } from '../page-data-routes.mjs';
import { createPageDataService } from '../page-data-service.mjs';
import { createPageDataPublicService } from '../page-data-public-service.mjs';
import { deletePageAccessPolicy, writePageAccessPolicy } from '../page-data-policy-store.mjs';
import { createUserDataSpaceService } from '../user-data-space-service.mjs';
import { deriveUserSpaceNames, quotePgIdentifier } from '../mindspace-userdata-postgres.mjs';
import { loadH5Environment } from './load-env.mjs';

loadH5Environment(import.meta.dirname);

const repoRoot = path.resolve(path.dirname(fileURLToPath(import.meta.url)), '..');
const userId = process.argv[2] ?? '1c99b83b-0454-474f-a5d2-129d34506a32';
const workspaceRoot = path.join(repoRoot, 'MindSpace', userId);
const suffix = `${Date.now()}_${process.pid}`;
const tableName = `survey_e2e_${suffix}`;
const datasetName = tableName;
const pageId = `page-survey-e2e-${suffix}`;
const names = deriveUserSpaceNames(userId);
const policyPath = path.join(workspaceRoot, '.mindspace', 'page-data-policies', `${pageId}.json`);
const logPath = path.join(workspaceRoot, '.mindspace', 'page-data-logs', `${pageId}.jsonl`);

assert.equal(process.env.MINDSPACE_USERDATA_BACKEND, 'postgres', '本机未启用 PostgreSQL 用户数据后端');
assert.ok(fs.existsSync(workspaceRoot), `用户工作区不存在: ${workspaceRoot}`);

const pgPool = new pg.Pool({
  host: process.env.MINDSPACE_USERDATA_PG_HOST ?? '/tmp',
  port: Number(process.env.MINDSPACE_USERDATA_PG_PORT ?? 5433),
  database: process.env.MINDSPACE_USERDATA_PG_DATABASE ?? 'mindspace_userdata_dev',
  user: process.env.MINDSPACE_USERDATA_PG_USER ?? process.env.USER,
  max: 2,
});

function publicationPool() {
  return {
    async query(sql) {
      if (sql.includes('FROM h5_publish_records')) {
        return [[{
          id: `publication-${suffix}`,
          user_id: userId,
          page_id: pageId,
          access_mode: 'public',
          password_hash: null,
          status: 'online',
          expires_at: null,
        }]];
      }
      return [[]];
    },
  };
}

function buildApp() {
  const fakePublicationPool = publicationPool();
  const publicService = createPageDataPublicService({
    getPool: () => fakePublicationPool,
    resolveWorkspaceRootForOwner: () => workspaceRoot,
  });
  const api = express.Router();
  api.use(express.json());
  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: () => createPageDataService({ resolveWorkspaceRoot: async () => workspaceRoot }),
    getPageDataPublicService: () => publicService,
  });
  const app = express();
  app.set('trust proxy', true);
  app.use('/api', api);
  return app;
}

async function submitQuestionnaire(app, row) {
  const server = app.listen(0, '127.0.0.1');
  await new Promise((resolve, reject) => {
    server.once('listening', resolve);
    server.once('error', reject);
  });
  try {
    const { port } = server.address();
    const apiPath = `/api/public/pages/${pageId}/data/${datasetName}/rows`;
    const response = await fetch(`http://127.0.0.1:${port}${apiPath}`, {
      method: 'POST',
      headers: { 'content-type': 'application/json' },
      body: JSON.stringify(row),
    });
    return { apiPath, status: response.status, body: await response.json() };
  } finally {
    await new Promise((resolve) => server.close(resolve));
  }
}

async function main() {
  const ownerService = createUserDataSpaceService({ workspaceRoot, userId });
  let tableCreated = false;
  try {
    // Equivalent to the Agent's private_data_execute + register_dataset + bind policy flow.
    await ownerService.executeSql(`CREATE TABLE ${tableName} (
      id INTEGER PRIMARY KEY AUTOINCREMENT,
      satisfaction TEXT NOT NULL,
      favorite_feature TEXT NOT NULL,
      suggestion TEXT,
      created_at TEXT NOT NULL DEFAULT (datetime('now', 'localtime'))
    )`);
    tableCreated = true;
    const dataset = await ownerService.upsertDataset({
      name: datasetName,
      table: tableName,
      description: '本机 PG 问卷端到端验证',
      actions: ['read', 'insert'],
      columns: {
        read: ['id', 'satisfaction', 'favorite_feature', 'suggestion', 'created_at'],
        insert: ['satisfaction', 'favorite_feature', 'suggestion'],
      },
    });
    writePageAccessPolicy(workspaceRoot, {
      pageId,
      ownerUserId: userId,
      accessMode: 'public',
      datasets: {
        [datasetName]: {
          insert: true,
          read: false,
          columns: { insert: ['satisfaction', 'favorite_feature', 'suggestion'] },
        },
      },
    });

    const answer = {
      satisfaction: '非常满意',
      favorite_feature: '个人数据报表',
      suggestion: '增加按月趋势分析',
    };
    const submitted = await submitQuestionnaire(buildApp(), answer);
    assert.equal(submitted.status, 201, JSON.stringify(submitted.body));
    assert.equal(submitted.body.data.dataset, datasetName);
    assert.equal(submitted.body.data.row.satisfaction, answer.satisfaction);

    const direct = await pgPool.query(
      `SELECT id,satisfaction,favorite_feature,suggestion,created_at
       FROM ${quotePgIdentifier(names.schemaName)}.${quotePgIdentifier(tableName)}
       ORDER BY id DESC LIMIT 1`,
    );
    assert.equal(direct.rowCount, 1);
    assert.equal(direct.rows[0].satisfaction, answer.satisfaction);
    assert.equal(direct.rows[0].favorite_feature, answer.favorite_feature);
    assert.equal(direct.rows[0].suggestion, answer.suggestion);

    const registered = await pgPool.query(
      `SELECT name,table_name FROM ${quotePgIdentifier(names.schemaName)}.__page_data_datasets WHERE name=$1`,
      [datasetName],
    );
    assert.equal(registered.rowCount, 1);

    console.log(JSON.stringify({
      result: 'PASS',
      localOnly: true,
      userId,
      schema: names.schemaName,
      dataset: { name: dataset.name, table: dataset.table, actions: dataset.actions },
      pageDataApi: { method: 'POST', path: submitted.apiPath, status: submitted.status },
      postgresRow: direct.rows[0],
      checks: [
        'Agent-style table creation succeeded in the user schema',
        'Dataset registry was stored in PostgreSQL',
        'Questionnaire submission used the public Page Data HTTP API',
        'Submitted answers matched a direct PostgreSQL query',
      ],
    }, null, 2));
  } finally {
    if (tableCreated) {
      await ownerService.executeSql(`DELETE FROM __page_data_datasets WHERE name='${datasetName}'`).catch(() => {});
      await ownerService.executeSql(`DROP TABLE IF EXISTS ${tableName}`).catch(() => {});
    }
    deletePageAccessPolicy(workspaceRoot, pageId);
    fs.rmSync(logPath, { force: true });
    fs.rmSync(policyPath, { force: true });
    await pgPool.end();
  }
}

main().catch((error) => {
  console.error(error instanceof Error ? error.stack ?? error.message : error);
  process.exitCode = 1;
});