// tools/svg-to-png.js
const fs = require('fs');
const path = require('path');
const sharp = require('sharp');

const srcDir = path.join(__dirname, '..', 'static', 'svg'); // 源 svg 目录（按需修改）
const outDir = path.join(__dirname, '..', 'static', 'png'); // 输出目录（按需修改）
const sizes = [128]; // 你想导出的尺寸（可只留一个）

if (!fs.existsSync(outDir)) fs.mkdirSync(outDir, { recursive: true });

function walk(dir){
  return fs.readdirSync(dir, { withFileTypes: true }).flatMap(d => {
    const full = path.join(dir, d.name);
    if (d.isDirectory()) return walk(full);
    return full;
  });
}

const files = walk(srcDir).filter(f => f.endsWith('.svg'));
if (!files.length) {
  console.log('No SVG files found in', srcDir);
  process.exit(0);
}

(async () => {
  for (const f of files) {
    const name = path.basename(f, '.svg');
    for (const size of sizes) {
      const out = path.join(outDir, `${name}-${size}.png`);
      await sharp(f)
        .resize(size)
        .png({ quality: 90 })
        .toFile(out);
      console.log('wrote', out);
    }
  }
  console.log('Done');
})();