david_bai
99 lines
3.0 KiB
TypeScript
99 lines
3.0 KiB
TypeScript
// Blog utility functions
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import fs from 'fs'
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import path from 'path'
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import matter from 'gray-matter'
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const POSTS_PATH = path.join(process.cwd(), 'content/blog')
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export interface BlogPost {
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slug: string
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frontmatter: {
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title: string
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description: string
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date: string
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author: string
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cover: string
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tags: string[] // Use the tags array directly
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status: string
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}
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content: string
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}
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export async function getAllPosts(lang: string): Promise<BlogPost[]> {
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const files = fs.readdirSync(POSTS_PATH)
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const posts = await Promise.all(
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files
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.filter((file) => /\.mdx?$/.test(file))
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.map(async (file) => {
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const filePath = path.join(POSTS_PATH, file)
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const source = fs.readFileSync(filePath, 'utf8')
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const { data, content } = matter(source)
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// Validate and transform frontmatter data
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const frontmatter = {
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title: data.title ?? '',
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description: data.description ?? '',
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date: data.date ?? new Date().toISOString(),
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author: data.author ?? '',
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cover: data.cover ?? '',
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tags: Array.isArray(data.tags) ? data.tags : [], // Use the tags array directly
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status: data.status ?? 'draft'
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}
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return {
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slug: file.replace(/\.mdx?$/, ''),
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frontmatter,
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content
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} as BlogPost
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})
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)
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// Filter out draft status blogs
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return posts
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.filter(post => post.frontmatter.status === 'published') // Only keep published status
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.filter(post => {
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// Split slug into an array by '-'
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const parts = post.slug.split('-');
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// Get the last part
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const lastPart = parts[parts.length - 1];
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// Check if the last part equals the target language && if the target language is Chinese, return Chinese blogs, otherwise return English blogs
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const lang_dst = lang === 'zh' ? 'zh':'en';
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return lastPart === lang_dst;
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})
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.sort((a, b) =>
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new Date(b.frontmatter.date).getTime() - new Date(a.frontmatter.date).getTime()
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)
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}
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export async function getPostBySlug(slug: string): Promise<BlogPost | null> {
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try {
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const filePath = path.join(POSTS_PATH, `${slug}.mdx`)
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const source = fs.readFileSync(filePath, 'utf8')
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const { data, content } = matter(source)
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// Validate and transform frontmatter data
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const frontmatter = {
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title: data.title ?? '',
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description: data.description ?? '',
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date: data.date ?? new Date().toISOString(),
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author: data.author ?? '',
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cover: data.cover ?? '',
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tags: Array.isArray(data.tags) ? data.tags : [],
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status: data.status ?? 'draft'
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}
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return {
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slug,
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frontmatter,
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content
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}
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} catch (error) {
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return null
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}
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}
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// Get blog posts by tag
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export async function getPostsByTag(tag: string,lang: string): Promise<BlogPost[]> {
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const allPosts = await getAllPosts(lang)
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return allPosts.filter(post => post.frontmatter.tags.includes(tag))
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} |