import fs from 'fs'
import sharp from 'sharp'
import { normalizeWithPreset } from '@/lib/mask/normalize'

async function main() {
  const worker = JSON.parse(fs.readFileSync('/tmp/worker.json', 'utf-8'))
  const maskBuf = Buffer.from(worker.mask, 'base64')
  const { data, info } = await sharp(maskBuf).ensureAlpha().removeAlpha().raw().toBuffer({ resolveWithObject: true })
  const mask = new Uint8Array(data)
  console.log('mask size', info.width, info.height)
  let cov = 0
  for (let i = 0; i < mask.length; i++) if (mask[i] >= 128) cov++
  console.log('cov raw', cov / mask.length)
  const gray = new Uint8Array(mask)
  const res = normalizeWithPreset({ mask, width: info.width, height: info.height, gray, preset: 'tiles-default' })
  let afterCov = 0
  for (let i = 0; i < res.result.data.length; i++) if (res.result.data[i]) afterCov++
  console.log('after cov', afterCov / res.result.data.length)
  console.log(res.result.stats)
}

main().catch(err => { console.error(err); process.exit(1) })