/**
 * # 脚本 导入原站页面级生成 CSS（post-<legacy_id>.css）到 contents.meta.page_css
 *
 * 背景：DB dump 的 meta.elementor 缺少 widget 级 custom_css（如 EAEL infobox 的
 * `.elementor-element-7f1dc73 .eael-infobox .infobox-icon img{width:80px}`），这些规则
 * 只存在于原站 Elementor 生成的页面样式表 post-<post_id>.css 中。
 *
 * 做法：
 * 1. 抓 https://www.dusuniot.com/wp-content/uploads/elementor/css/post-<legacy_id>.css
 * 2. 只保留选择器含 .elementor-element-<id>（id 属于本文档）的规则（含 @media 块内），
 *    把 `.elementor-element.elementor-element-<id>` / `.elementor-element-<id>` 改写为
 *    `[data-el="<id>"]`（与渲染器 DOM 对应），剥掉 `.elementor-<pid>` 页面作用域前缀
 * 3. 拼接后写回 meta.page_css，渲染器（ElementorRenderer pageCss prop）注入 <style>
 *
 * 用法：bun scripts/import-page-css.ts <slug> [<slug> ...]   （缺省 = 全部方案落地页）
 */
import { SQL } from "bun";
import { collectDocIds, filterCssForIds } from "../src/utils/css-translate";

/** # 常量 方案落地页 slug 全集（缺省导入目标） **/
const SOLUTION_SLUGS = [
  "smart-apartment-gateway",
  "smart-apartment-gateway-oem",
  "oil-gas-management-solution",
  "energy-storage-ems-solution",
  "smart-robot-controller-solution",
  "vehicle-iot-solution",
  "smart-building-solution",
  "smart-retail-solution",
  "smart-home-solution",
  "smart-apartment-solution",
  "smart-elderly-care-solution",
  "ble-positioning-solution",
  "ble-mesh-lighting-control-solution",
  "home-assistant-grow-lighting-solution",
];

/** # 常量 原站页面 CSS 地址模板 **/
const CSS_URL = (pid: number) => `https://www.dusuniot.com/wp-content/uploads/elementor/css/post-${pid}.css`;




const sql0 = new SQL("postgres://dusuniot:dusuniot@127.0.0.1:25432/dusuniot", { max: 1 });
// CONTENT_TYPE 环境变量支持产品（product）等其它内容类型；"-all" = 该类型全部已发布内容
const contentType = process.env.CONTENT_TYPE || "post";
let slugs = process.argv.slice(2).length ? process.argv.slice(2) : SOLUTION_SLUGS;
if (slugs.length === 1 && slugs[0] === "-all") {
  const rows0 = await sql0`select slug from contents where type = ${contentType} and status = ${"published"}`;
  slugs = rows0.map((r: any) => r.slug);
}
await sql0.end();
const sql = new SQL("postgres://dusuniot:dusuniot@127.0.0.1:25432/dusuniot", { max: 1 });
/** 已导入过的跳过（断点续传；meta.page_css 键存在即视为完成） */
let done = 0;
let skipped = 0;
for (const slug of slugs) {
  const rows = await sql`select id, legacy_id, meta::text as meta from contents where slug = ${slug} and type = ${contentType} limit 1`;
  const row = rows[0];
  if (!row) {
    skipped++;
    continue;
  }
  const meta = JSON.parse(row.meta);
  if (meta.page_css !== undefined) {
    skipped++;
    continue;
  }
  const ids = collectDocIds(meta.elementor);
  const pid = row.legacy_id;
  if (!pid) {
    skipped++;
    continue;
  }
  // 重试 3 次、间隔 300ms（原站偶发 ECONNRESET/限流）
  let raw: string | null = null;
  for (let attempt = 0; attempt < 3 && raw === null; attempt++) {
    try {
      const res = await fetch(CSS_URL(pid), { headers: { "User-Agent": "Mozilla/5.0" } });
      if (res.ok) raw = await res.text();
      else if (res.status === 404) break;
    } catch {
      await new Promise((r) => setTimeout(r, 300));
    }
  }
  if (raw === null) {
    console.log("SKIP(fetch失败):", slug, pid);
    skipped++;
    continue;
  }
  const pageCss = filterCssForIds(raw, ids, pid);
  meta.page_css = pageCss;
  // ::text::jsonb 双重转换：Bun SQL 绑定字符串直接 ::jsonb 会把整串存成 JSON 字符串值
  await sql`update contents set meta = ${JSON.stringify(meta)}::text::jsonb where id = ${row.id}`;
  done++;
  if (done % 50 === 0) console.log(`... ${done} imported`);
}
console.log("imported:", done, "skipped:", skipped);
await sql.end();