import assert from "node:assert/strict";
import { afterEach, describe, it } from "node:test";
import { discussionJsonLd, questionJsonLd, serializeJsonLd } from "./jsonLd.ts";

const prev = {
  SITE_URL: process.env.SITE_URL,
  NODE_ENV: process.env.NODE_ENV,
};

afterEach(() => {
  if (prev.SITE_URL === undefined) delete process.env.SITE_URL;
  else process.env.SITE_URL = prev.SITE_URL;
  process.env.NODE_ENV = prev.NODE_ENV;
});

describe("serializeJsonLd", () => {
  it("尖括号不会提前闭合 script", () => {
    const raw = serializeJsonLd({ text: `a</script><script>alert(1)` });
    assert.equal(raw.includes("</script>"), false);
    assert.equal(raw.includes("\\u003c"), true);
    const parsed = JSON.parse(raw);
    assert.equal(parsed.text, "a</script><script>alert(1)");
  });
});

describe("questionJsonLd", () => {
  it("采纳答案不重复进 suggestedAnswer", () => {
    process.env.SITE_URL = "https://bbs.example.com";
    process.env.NODE_ENV = "production";
    const data = questionJsonLd({
      title: "怎么排序",
      text: "正文",
      createdAt: "2026-09-01T00:00:00Z",
      author: { id: 3, name: "甲" },
      postId: 9,
      accepted: { id: 4, content: "用索引", created_at: "2026-09-02T00:00:00Z", author: { id: 5, name: "乙" } },
      answers: [
        { id: 4, content: "用索引", created_at: "2026-09-02T00:00:00Z", author: { id: 5, name: "乙" } },
        { id: 6, content: "先 EXPLAIN", created_at: "2026-09-03T00:00:00Z" },
      ],
    });
    assert.ok(data);
    const q = data.mainEntity as { acceptedAnswer: { text: string }; suggestedAnswer: { text: string }[] };
    assert.equal(q.acceptedAnswer.text, "用索引");
    assert.deepEqual(q.suggestedAnswer.map((a) => a.text), ["先 EXPLAIN"]);
    assert.equal(data["@type"], "QAPage");
  });
});

describe("discussionJsonLd", () => {
  it("评论分页不改讨论实体地址", () => {
    process.env.SITE_URL = "https://bbs.example.com";
    process.env.NODE_ENV = "production";
    const data = discussionJsonLd({
      title: "闲聊",
      createdAt: "2026-09-01T00:00:00Z",
      author: { id: 1, name: "丙" },
      postId: 8,
      pageUrl: "https://bbs.example.com/post/8?page=2",
      comments: [{ id: 2, content: "可见楼层", created_at: "2026-09-01T01:00:00Z" }],
    });
    assert.equal(data?.url, "https://bbs.example.com/post/8");
    const page = data?.mainEntityOfPage as { url: string };
    assert.equal(page.url, "https://bbs.example.com/post/8?page=2");
    assert.equal((data?.comment as { text: string }[])[0].text, "可见楼层");
  });
});