"use strict";

function normalizeWhitespace(text) {
  return text.replace(/\s+/g, " ").trim();
}

function extractArticleFromParent(parentPost) {
  if (!parentPost || typeof parentPost !== "object") {
    return { ok: false, error: "parent_post_missing" };
  }

  const article = parentPost.article;
  if (!article || typeof article.body !== "string") {
    return { ok: false, error: "not_article" };
  }

  const rawBody = normalizeWhitespace(article.body);
  if (!rawBody) {
    return { ok: false, error: "empty_article" };
  }

  return {
    ok: true,
    article: {
      xArticleId: article.id || null,
      parentPostId: parentPost.id,
      authorId: parentPost.authorId || null,
      title: article.title || "Untitled",
      content: rawBody,
      charCount: rawBody.length,
    },
  };
}

module.exports = {
  extractArticleFromParent,
};