search-index.astro

---
import { splitTextByHeadings } from "../scripts/split-text-by-headings"
import { MarkdownInstance } from "astro"
import fs from "node:fs"

const pagesGlob = import.meta.glob("./**/*.astro", { eager: true })
const pages = Object.values(pagesGlob)

const postsMdxGlob = import.meta.glob<MarkdownInstance<Record<string, any>>>("../content/**/*.mdx", { eager: true })
const postsMdx = Object.values(postsMdxGlob).filter((post) => !post.frontmatter.draft)

const postsMdxWithContent = postsMdx.map((post) => {
  const url = new URL(post.file, import.meta.url)
  const content = fs.readFileSync(url, "utf-8")
  const splittedContent = splitTextByHeadings(content)
  const chunks = splittedContent.map((chunk) => ({
    ...post,
    rawContent: () => chunk,
  }))

  return chunks
})

const markDownFiles = postsMdxWithContent.flat()

const transformMarkdownInstancesToIndexes = async (instances: MarkdownInstance<Record<string, any>>[]) => {
  return Promise.all(
    instances.map(async (instance) => {
      const { title, section, metadata } = instance.frontmatter
      const headings = await instance.getHeadings()
      const content = instance.rawContent ? await instance.rawContent() : undefined
      const href = instance.url?.replace("src/content", "").replace(".mdx", "")

      return {
        title,
        headings,
        url: href,
        section,
        description: metadata?.description ?? undefined,
        content,
      }
    })
  )
}

const index = await transformMarkdownInstancesToIndexes(markDownFiles)

const stringifiedJson = JSON.stringify({ index }, null, 2)
fs.writeFileSync(`${process.cwd()}/public/search-index.json`, stringifiedJson)
---

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