const sharp = require('sharp');
const path = require('path');
const fs = require('fs');

const svgPath = path.resolve(__dirname, '../client/public/favicon.svg');
const iconsDir = path.resolve(__dirname, '../client/public/icons');

// Standard icon sizes for web/electron apps
const iconSizes = [16, 24, 32, 48, 64, 128, 256, 512];

// Tray icon sizes (simpler variant needed at 16 and 32)
const traySizes = [
  { name: 'tray-icon.png', size: 16 },
  { name: 'tray-icon@2x.png', size: 32 },
];

// Logo (512px)
const logoSize = { name: 'logo.png', size: 512 };

async function generate() {
  if (!fs.existsSync(svgPath)) {
    console.error(`SVG not found: ${svgPath}`);
    process.exit(1);
  }

  fs.mkdirSync(iconsDir, { recursive: true });

  const svgBuffer = fs.readFileSync(svgPath);

  // Generate standard icon sizes
  for (const size of iconSizes) {
    const outPath = path.join(iconsDir, `icon-${size}.png`);
    await sharp(svgBuffer)
      .resize(size, size)
      .png()
      .toFile(outPath);
    console.log(`  ✓ icon-${size}.png (${size}x${size})`);
  }

  // Generate tray icons (smaller, may need simplification - use same source)
  for (const { name, size } of traySizes) {
    const outPath = path.join(iconsDir, name);
    await sharp(svgBuffer)
      .resize(size, size)
      .png()
      .toFile(outPath);
    console.log(`  ✓ ${name} (${size}x${size})`);
  }

  // Generate logo
  const logoPath = path.join(iconsDir, logoSize.name);
  await sharp(svgBuffer)
    .resize(logoSize.size, logoSize.size)
    .png()
    .toFile(logoPath);
  console.log(`  ✓ ${logoSize.name} (${logoSize.size}x${logoSize.size})`);

  console.log(`\nDone! All icons generated in ${iconsDir}`);
}

generate().catch(err => {
  console.error('Failed:', err);
  process.exit(1);
});