darkwave/lib/posts.ts

import fs from 'fs';
import path from 'path';
import matter from 'gray-matter';
import { remark } from 'remark';
import html from 'remark-html';
import { unified } from 'unified';
import remarkParse from 'remark-parse';
import remarkGfm from 'remark-gfm';
import remarkRehype from 'remark-rehype';
import rehypeRaw from 'rehype-raw';
import rehypeStringify from 'rehype-stringify';

const postsDirectory = path.join(process.cwd(), 'posts');

export interface PostData {
  slug: string;
  title: string;
  date: string;
  tags: string[];
  contentHtml: string;
  description: string;
}

export function getAllPostSlugs(): string[] {
  const fileNames = fs.readdirSync(postsDirectory);
  return fileNames.map((fileName) => fileName.replace(/\.md$/, ''));
}

export function getSortedPostsData(): Omit<PostData, 'contentHtml'>[] {
  const fileNames = fs.readdirSync(postsDirectory);
  const allPostsData = fileNames.map((fileName) => {
    const slug = fileName.replace(/\.md$/, '');
    const fullPath = path.join(postsDirectory, fileName);
    const fileContents = fs.readFileSync(fullPath, 'utf8');
    const matterResult = matter(fileContents);

    return {
      slug,
      title: matterResult.data.title,
      date: matterResult.data.date,
      tags: matterResult.data.tags || [],
      description: matterResult.data.description || '',
    };
  });

  return allPostsData.sort((a, b) => {
    if (a.date < b.date) {
      return 1;
    } else {
      return -1;
    }
  });
}

export async function getPostData(slug: string): Promise<PostData | null> {
  try {
    const fullPath = path.join(postsDirectory, `${slug}.md`);
    
    if (!fs.existsSync(fullPath)) {
      console.error(`Файл не найден: ${fullPath}`);
      return null;
    }
    
    const fileContents = fs.readFileSync(fullPath, 'utf8');
    const matterResult = matter(fileContents);
    
    // Используем unified pipeline для более полной поддержки Markdown
    const processedContent = await unified()
      .use(remarkParse) // парсим Markdown
      .use(remarkGfm) // добавляем поддержку GFM (таблицы, задачи и т.д.)
      .use(remarkRehype, { allowDangerousHtml: true }) // конвертируем в HTML
      .use(rehypeRaw) // разрешаем raw HTML
      .use(rehypeStringify) // сериализуем в строку
      .process(matterResult.content || '');
    
    const contentHtml = processedContent.toString();

    return {
      slug,
      contentHtml,
      title: matterResult.data.title || 'Без названия',
      date: matterResult.data.date || new Date().toISOString().split('T')[0],
      tags: matterResult.data.tags || [],
      description: matterResult.data.description || '',
    };
  } catch (error) {
    console.error(`Ошибка при загрузке поста ${slug}:`, error);
    return null;
  }
}