#!/usr/bin/env node
/**
 * 扫描并补绑工作区中未完整交付的 Page Data 问卷页（publication + policy + dataset）。
 *
 * Usage:
 *   node scripts/repair-page-data-workspace-bindings.mjs
 *   node scripts/repair-page-data-workspace-bindings.mjs --user-id <uuid>
 *   node scripts/repair-page-data-workspace-bindings.mjs --dry-run
 */
import fs from 'node:fs';
import path from 'node:path';
import { fileURLToPath } from 'node:url';
import { loadH5Environment } from './load-env.mjs';
import { createDbPool } from '../db.mjs';
import { buildPublicUrl, PUBLISH_ROOT_DIR, resolvePublicBaseUrl } from '../user-publish.mjs';
import { resolveMindSpaceStorageRoot } from '../mindspace-runtime-config.mjs';
import { createPageService } from '../mindspace-pages.mjs';
import { assessPageDataHtmlBinding } from '../page-data-delivery-assess.mjs';
import {
  collectPageDataPublicHtmlFiles,
  maybeAutoBindPageDataHtmlPages,
} from '../mindspace-page-data-finish-guard.mjs';

const repoRoot = path.join(path.dirname(fileURLToPath(import.meta.url)), '..');
loadH5Environment(import.meta.dirname);

function parseArgs(argv) {
  const options = { userId: null, dryRun: false };
  for (let i = 2; i < argv.length; i += 1) {
    const arg = argv[i];
    if (arg === '--dry-run') options.dryRun = true;
    else if (arg === '--user-id' && argv[i + 1]) options.userId = argv[++i];
    else if (arg === '-h' || arg === '--help') {
      console.log('Usage: node scripts/repair-page-data-workspace-bindings.mjs [--user-id <uuid>] [--dry-run]');
      process.exit(0);
    } else {
      throw new Error(`未知参数: ${arg}`);
    }
  }
  return options;
}

function listWorkspaceUserIds(mindspaceRoot) {
  if (!fs.existsSync(mindspaceRoot)) return [];
  return fs
    .readdirSync(mindspaceRoot, { withFileTypes: true })
    .filter((entry) => entry.isDirectory() && /^[0-9a-f-]{36}$/i.test(entry.name))
    .map((entry) => entry.name);
}

async function assessUserWorkspace({ userId, pool, h5Root, storageRoot, publicBaseUrl }) {
  const publishDir = path.join(h5Root, 'MindSpace', userId);
  if (!fs.existsSync(publishDir)) return [];
  const pageService = createPageService(pool, { h5Root, storageRoot });
  const broken = [];
  for (const file of collectPageDataPublicHtmlFiles(publishDir)) {
    if (file.evaluation.usage?.size === 0) continue;
    const assessment = await assessPageDataHtmlBinding({
      pool,
      userId,
      publishDir,
      relativePath: file.relativePath,
      html: file.content,
      findPageByRelativePath: pageService.findPageByRelativePath.bind(pageService),
    });
    if (!assessment.bound) {
      broken.push({
        userId,
        relativePath: file.relativePath,
        url: buildPublicUrl(publicBaseUrl, userId, file.relativePath),
        reasons: assessment.reasons,
        pageId: assessment.pageId,
      });
    }
  }
  return broken;
}

async function main() {
  const options = parseArgs(process.argv);
  const pool = createDbPool();
  const h5Root = repoRoot;
  const storageRoot = resolveMindSpaceStorageRoot(h5Root);
  const publicBaseUrl = resolvePublicBaseUrl();
  const userIds = options.userId ? [options.userId] : listWorkspaceUserIds(path.join(h5Root, 'MindSpace'));

  const allBroken = [];
  for (const userId of userIds) {
    const broken = await assessUserWorkspace({
      userId,
      pool,
      h5Root,
      storageRoot,
      publicBaseUrl,
    });
    allBroken.push(...broken);
  }

  if (!allBroken.length) {
    console.log('未发现需要补绑的 Page Data 页面。');
    await pool.end();
    return;
  }

  console.log(`发现 ${allBroken.length} 个未完整绑定的 Page Data 页面：`);
  for (const item of allBroken) {
    console.log(`- [${item.userId}] ${item.relativePath}`);
    console.log(`  url: ${item.url}`);
    console.log(`  reasons: ${item.reasons.join(', ')}`);
  }

  if (options.dryRun) {
    console.log('\n(dry-run) 未执行补绑。');
    await pool.end();
    return;
  }

  const byUser = new Map();
  for (const item of allBroken) {
    const list = byUser.get(item.userId) ?? [];
    list.push(item.relativePath);
    byUser.set(item.userId, list);
  }

  for (const [userId, relativePaths] of byUser.entries()) {
    const publishDir = path.join(h5Root, 'MindSpace', userId);
    const pageService = createPageService(pool, { h5Root, storageRoot });
    const result = await maybeAutoBindPageDataHtmlPages({
      pool,
      userId,
      publishDir,
      h5Root,
      storageRoot,
      onlyRelativePaths: relativePaths,
      findPageByRelativePath: pageService.findPageByRelativePath.bind(pageService),
    });
    console.log(
      `\n[user ${userId}] bound=${result.bound.length} skipped=${result.skipped.length} errors=${result.errors.length}`,
    );
    for (const item of result.bound) {
      console.log(`  ✓ ${item.relativePath} -> ${item.pageId}`);
    }
    for (const item of result.errors) {
      console.log(`  ✗ ${item.relativePath}: ${item.message}`);
    }
  }

  await pool.end();
}

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