import fs from 'node:fs'
import { Worker } from 'node:worker_threads'

export default defineEventHandler(async event => {
    const offers = await $fetch('/api/offers')

    setResponseHeaders(event, { 'Content-Type': 'application/pdf' })

    return new Promise((resolve, reject) => {
        const worker = new Worker(process.cwd() + '/workers/pdf.js', {
            workerData: {
                offers,
            },
        })
        worker.on('message', ({ file }) => {
            const absoluteFile = process.cwd() + '/' + file
            const stream = sendStream(event, fs.createReadStream(absoluteFile))
            stream.finally(() => fs.unlinkSync(absoluteFile))
            resolve(stream)
        })
        worker.on('error', reject)
        worker.on('exit', code => {
            if (code != 0) {
                reject(new Error(`PDF worker stopped with exit code ${code}`))
            }
        })
    })
})

import fs from 'node:fs'
import path from 'node:path'
import { workerData, parentPort } from 'node:worker_threads'
import muhammara from 'muhammara'

// This import doesn't work
// import someFunc from '~/utils/someFunction.js'

const outputFileRelativePath = 'data/temp/pdf/' + Date.now() + '-' + process.hrtime.bigint().toString() + '.pdf'
const outputFileAbsolutePath = process.cwd() + '/' + outputFileRelativePath

fs.mkdirSync(path.dirname(outputFileAbsolutePath), { recursive: true })

const pdf = new muhammara.Recipe('new', outputFileAbsolutePath)
pdf.createPage('A4', 90)
pdf.text('Offers count: ' + workerData.offers.length, 100, 100)
pdf.endPDF()

parentPort.postMessage({ file: outputFileRelativePath })

{
    "name": "",
    "private": true,
    "type": "module",
    "scripts": {
        "build": "nuxt build",
        "dev": "nuxt dev",
        "generate": "nuxt generate",
        "preview": "nuxt preview",
        "postinstall": "nuxt prepare"
    },
    "dependencies": {
        "muhammara": "~4.1"
    },
    "devDependencies": {
        "vue": "~3.4",
        "vue-router": "~4.4",
        "nuxt": "~3.12"
    }
}