/**
 * Génère les PNGs d'icône PWA depuis `public/icon.svg`.
 *
 * Sort :
 *   - public/icon-192.png       (Android mostly, manifest)
 *   - public/icon-512.png       (Android, splashscreen)
 *   - public/apple-touch-icon.png   (iOS, 180×180 — recommandation Apple)
 *
 * À relancer si on touche au design de la gem :
 *   pnpm --filter @rubis/web run icons
 */

import { readFile, writeFile } from 'node:fs/promises'
import { fileURLToPath } from 'node:url'
import { dirname, join } from 'node:path'
import { Resvg } from '@resvg/resvg-js'

const __dirname = dirname(fileURLToPath(import.meta.url))
const ROOT = join(__dirname, '..')
const SRC = join(ROOT, 'public/icon.svg')

async function render(size, out) {
  const svg = await readFile(SRC, 'utf-8')
  const resvg = new Resvg(svg, {
    fitTo: { mode: 'width', value: size },
    background: '#FAF7F2',
  })
  const buf = resvg.render().asPng()
  const dest = join(ROOT, 'public', out)
  await writeFile(dest, buf)
  console.log(`✓ ${out} (${size}×${size}, ${buf.byteLength.toLocaleString()} B)`)
}

await render(192, 'icon-192.png')
await render(512, 'icon-512.png')
await render(180, 'apple-touch-icon.png')