"use strict";

const test = require("node:test");
const assert = require("node:assert/strict");
const { extractArticleFromParent } = require("../src/lib/article");

test("returns not_article when parent has no article payload", () => {
  const result = extractArticleFromParent({ id: "p1", text: "hello" });
  assert.equal(result.ok, false);
  assert.equal(result.error, "not_article");
});

test("extracts article body and char count", () => {
  const result = extractArticleFromParent({
    id: "p1",
    authorId: "author-1",
    article: {
      id: "art-1",
      title: "My Article",
      body: "  Hello   world\n\nfrom X article. ",
    },
  });

  assert.equal(result.ok, true);
  assert.equal(result.article.title, "My Article");
  assert.equal(result.article.content, "Hello world from X article.");
  assert.equal(result.article.charCount, "Hello world from X article.".length);
});

test("returns empty_article when body is blank", () => {
  const result = extractArticleFromParent({
    id: "p1",
    article: {
      body: "   \n\n\t",
    },
  });

  assert.equal(result.ok, false);
  assert.equal(result.error, "empty_article");
});