nicco.io/src/routes/api/search.json.ts

import lunr from 'lunr'
import type { RequestHandler } from '@sveltejs/kit'
import { BaseAttributes, Call, gql, Page } from '$lib/api'

function removeHTML(s: string) {
  return s.replace(/<.*?>|\s+|&#\d+;/g, ' ').trim()
}

function convertForIdx(type: string, items: Page[]) {
  const keys: (keyof Page)[] = ['title', 'content', 'slug']
  return items.map((item) => ({
    url: `${type}/${item.slug}`,
    data: keys.map((field) => removeHTML(item[field] ?? '')).join(' '),
  }))
}

async function getAll() {
  const all = await Call<Record<'posts' | 'projects' | 'works', { nodes: Page[] }>>(gql`
    query {
      posts(first: 1000) {
        nodes {
          ${BaseAttributes}
        }
      }
      projects(first: 1000) {
        nodes {
          ${BaseAttributes}
        }
      }
      works(first: 1000) {
        nodes {
          ${BaseAttributes}
        }
      }
    }
  `)
  return all
}

export const get: RequestHandler = async () => {
  const all = await getAll()
  const converted = Object.entries(all)
    .map(([type, data]) => convertForIdx(type, data.nodes))
    .flat()

  const idx = lunr(function () {
    this.ref('url')
    this.field('data')
    converted.forEach((doc) => this.add(doc))
  })

  return { body: idx }
}