#!/usr/bin/env node
import { mkdir, readFile } from 'node:fs/promises'
import path from 'node:path'
import sharp from 'sharp'
import { fileURLToPath } from 'node:url'

const __filename = fileURLToPath(import.meta.url)
const __dirname = path.dirname(__filename)
const rootDir = path.resolve(__dirname, '..')
const logoSrc = path.join(rootDir, 'public', 'images', 'logos', 'Harheimer TC.svg')
const outDir = path.join(rootDir, 'android-app', 'playstore-assets', 'generated')

const iconOut = path.join(outDir, 'playstore-icon-512.png')
const featureOut = path.join(outDir, 'playstore-feature-graphic-1024x500.png')

const featureOverlaySvg = `
<svg width="1024" height="500" xmlns="http://www.w3.org/2000/svg">
  <defs>
    <linearGradient id="bg" x1="0" y1="0" x2="1" y2="1">
      <stop offset="0%" stop-color="#0f172a"/>
      <stop offset="100%" stop-color="#1e293b"/>
    </linearGradient>
  </defs>
  <rect width="1024" height="500" fill="url(#bg)"/>
  <text x="430" y="185" font-size="66" font-family="DejaVu Sans, Arial, sans-serif" font-weight="700" fill="#e5e7eb">Harheimer TC</text>
  <text x="430" y="250" font-size="30" font-family="DejaVu Sans, Arial, sans-serif" fill="#cbd5e1">Tischtennis in Frankfurt-Harheim</text>
</svg>
`

async function generateAssets() {
  await mkdir(outDir, { recursive: true })

  const logoBuffer = await readFile(logoSrc)
  const resizedLogoForIcon = await sharp(logoBuffer)
    .resize(440, 440, { fit: 'contain' })
    .png()
    .toBuffer()

  await sharp({
    create: {
      width: 512,
      height: 512,
      channels: 4,
      background: { r: 0, g: 0, b: 0, alpha: 0 },
    },
  })
    .composite([{ input: resizedLogoForIcon, gravity: 'center' }])
    .png()
    .toFile(iconOut)

  const resizedLogoForFeature = await sharp(logoBuffer)
    .resize(320, 320, { fit: 'contain' })
    .png()
    .toBuffer()

  await sharp(Buffer.from(featureOverlaySvg))
    .composite([{ input: resizedLogoForFeature, left: 72, top: 90 }])
    .png()
    .toFile(featureOut)

  console.log(`Fertig. Assets erzeugt in: ${outDir}`)
  console.log(`- ${path.basename(iconOut)}`)
  console.log(`- ${path.basename(featureOut)}`)
}

generateAssets().catch((error) => {
  console.error('Fehler bei der Asset-Generierung:', error)
  process.exitCode = 1
})