switched to approuter

lib/markdown.ts

@@ -0,0 +1,119 @@
+import fs from 'fs';
+import path from 'path';
+import matter from 'gray-matter';
+import { remark } from 'remark';
+import html from 'remark-html';
+import { PostData, PostMetadata } from '@/types';
+
+// Make sure this is only used on the server side
+const postsDirectory = path.join(process.cwd(), 'data/posts');
+
+export function getSortedPostsData(): PostMetadata[] {
+  // Ensure we only run this on the server
+  if (typeof window === 'undefined') {
+    // Get file names under /posts
+    const fileNames = fs.readdirSync(postsDirectory);
+    const allPostsData = fileNames.map((fileName) => {
+      // Remove ".md" from file name to get id
+      const id = fileName.replace(/\.md$/, '');
+
+      // Read markdown file as string
+      const fullPath = path.join(postsDirectory, fileName);
+      const fileContents = fs.readFileSync(fullPath, 'utf8');
+
+      // Use gray-matter to parse the post metadata section
+      const matterResult = matter(fileContents);
+
+      // Combine the data with the id
+      return {
+        id,
+        title: matterResult.data.title || '',
+        date: matterResult.data.date || '',
+        excerpt: matterResult.data.excerpt || '',
+        author: matterResult.data.author || '',
+        tags: matterResult.data.tags || [],
+        coverImage: matterResult.data.coverImage || undefined,
+      } as PostMetadata;
+    });
+
+    // Sort posts by date
+    return allPostsData.sort((a, b) => {
+      if (a.date < b.date) {
+        return 1;
+      } else {
+        return -1;
+      }
+    });
+  }
+  
+  // Return empty array if running on client side
+  return [];
+}
+
+export function getAllPostIds() {
+  // Ensure we only run this on the server
+  if (typeof window === 'undefined') {
+    const fileNames = fs.readdirSync(postsDirectory);
+
+    return fileNames.map((fileName) => {
+      return {
+        params: {
+          id: fileName.replace(/\.md$/, ''),
+        },
+      };
+    });
+  }
+  
+  // Return empty array if running on client side
+  return [];
+}
+
+export async function getPostData(id: string): Promise<PostData> {
+  // Ensure we only run this on the server
+  if (typeof window === 'undefined') {
+    const fullPath = path.join(postsDirectory, `${id}.md`);
+    const fileContents = fs.readFileSync(fullPath, 'utf8');
+
+    // Use gray-matter to parse the post metadata section
+    const matterResult = matter(fileContents);
+
+    // Use remark to convert markdown into HTML string
+    const processedContent = await remark()
+      .use(html, { sanitize: false })
+      .process(matterResult.content);
+    const contentHtml = processedContent.toString();
+
+    // Combine the data with the id and contentHtml
+    return {
+      id,
+      content: contentHtml,
+      title: matterResult.data.title || '',
+      date: matterResult.data.date || '',
+      excerpt: matterResult.data.excerpt || '',
+      author: matterResult.data.author || '',
+      tags: matterResult.data.tags || [],
+      coverImage: matterResult.data.coverImage || undefined,
+    };
+  }
+  
+  // Return empty object if running on client side (should never happen in practice)
+  return {
+    id: '',
+    content: '',
+    title: '',
+    date: '',
+    excerpt: '',
+    author: '',
+    tags: [],
+  };
+}
+
+export function getPostsByTag(tag: string): PostMetadata[] {
+  const allPosts = getSortedPostsData();
+  return allPosts.filter(post => post.tags.includes(tag));
+}
+
+export function getPostsByAuthor(author: string): PostMetadata[] {
+  const allPosts = getSortedPostsData();
+  return allPosts.filter(post => post.author.includes(author));
+}