jackwener__opencli/clis/lesswrong/comments.ts

import { cli, Strategy } from '../../registry.js';
import { EmptyResultError } from '../../errors.js';
import {
  DOMAIN,
  SITE,
  gqlEscape,
  gqlRequest,
  parsePostId,
  stripHtml,
} from './_helpers.js';

cli({
  site: SITE,
  name: 'comments',
  description: 'Top comments on a post',
  domain: DOMAIN,
  strategy: Strategy.PUBLIC,
  browser: false,
  args: [
    {
      name: 'url-or-id',
      type: 'string',
      required: true,
      positional: true,
      help: 'Post URL or LessWrong post ID',
    },
    { name: 'limit', type: 'int', default: 5, help: 'Number of comments' },
  ],
  columns: ['rank', 'score', 'author', 'text'],
  func: async (_page, kwargs) => {
    const postId = gqlEscape(parsePostId(String(kwargs['url-or-id'])));
    const limit = Number(kwargs.limit ?? 5);

    // Fetch post title and comments in parallel
    const [postData, commentsData] = await Promise.all([
      gqlRequest(`query PostTitle {
        post(input: {selector: {documentId: "${postId}"}}) {
          result { _id title slug }
        }
      }`),
      gqlRequest(`query Comments {
        comments(input: {terms: {view: "postCommentsTop", postId: "${postId}", limit: ${limit}}}) {
          results { _id user { displayName } baseScore htmlBody postedAt }
        }
      }`),
    ]);

    const post = postData?.post?.result;
    if (!post?._id) {
      throw new EmptyResultError('lesswrong comments', `Post "${postId}" not found`);
    }

    const comments = (commentsData?.comments?.results ?? []) as Array<Record<string, unknown>>;
    const rows: Array<Record<string, unknown>> = [];

    // First row: post context
    rows.push({
      rank: '',
      score: '',
      author: '',
      text: `Comments on: ${post.title ?? 'Untitled'} (https://${DOMAIN}/posts/${post._id}/${post.slug})`,
    });

    for (let i = 0; i < comments.length; i++) {
      const item = comments[i];
      const user = item.user as { displayName?: string } | undefined;
      const raw = stripHtml((item.htmlBody as string) ?? '');
      rows.push({
        rank: i + 1,
        score: (item.baseScore as number) ?? 0,
        author: user?.displayName ?? 'Unknown',
        text: raw.length > 500 ? `${raw.slice(0, 500)}...` : raw,
      });
    }

    return rows;
  },
});