websites/app/blog/utils.ts
2024-05-06 22:35:25 +02:00

92 lines
2.3 KiB
TypeScript

import fs from 'fs'
import path from 'path'
type Metadata = {
title: string
description: string
publishedAt: string
summary: string
image?: string
}
function parseFrontmatter(fileContent: string) {
let frontmatterRegex = /---\s*([\s\S]*?)\s*---/
let match = frontmatterRegex.exec(fileContent)
let frontMatterBlock = match![1]
let content = fileContent.replace(frontmatterRegex, '').trim()
let frontMatterLines = frontMatterBlock.trim().split('\n')
let metadata: Partial<Metadata> = {}
frontMatterLines.forEach((line) => {
let [key, ...valueArr] = line.split(': ')
let value = valueArr.join(': ').trim()
value = value.replace(/^['"](.*)['"]$/, '$1') // Remove quotes
metadata[key.trim() as keyof Metadata] = value
})
return { metadata: metadata as Metadata, content }
}
function getMDXFiles(dir) {
return fs.readdirSync(dir).filter((file) => path.extname(file) === '.mdx')
}
function readMDXFile(filePath) {
let rawContent = fs.readFileSync(filePath, 'utf-8')
return parseFrontmatter(rawContent)
}
function getMDXData(dir) {
let mdxFiles = getMDXFiles(dir)
return mdxFiles.map((file) => {
let { metadata, content } = readMDXFile(path.join(dir, file))
let slug = path.basename(file, path.extname(file))
return {
metadata,
slug,
content,
}
})
}
export function getBlogPosts() {
return getMDXData(path.join(process.cwd(), 'app', 'blog', 'posts'))
}
export function formatDate(date: string, includeRelative = false) {
let currentDate = new Date()
if (!date.includes('T')) {
date = `${date}T00:00:00`
}
let targetDate = new Date(date)
let yearsAgo = currentDate.getFullYear() - targetDate.getFullYear()
let monthsAgo = currentDate.getMonth() - targetDate.getMonth()
let daysAgo = currentDate.getDate() - targetDate.getDate()
let formattedDate = ''
if (yearsAgo > 0) {
formattedDate = `${yearsAgo}y ago`
} else if (monthsAgo > 0) {
formattedDate = `${monthsAgo}mo ago`
} else if (daysAgo > 0) {
formattedDate = `${daysAgo}d ago`
} else {
formattedDate = 'Today'
}
let fullDate = targetDate.toLocaleString('fr-fr', {
month: 'long',
day: 'numeric',
year: 'numeric',
})
if (!includeRelative) {
return fullDate
}
return `${fullDate} (${formattedDate})`
}