/**
 * 将 static/icons 下的 tab 相关 SVG 转为 81x81 PNG，供 tabBar 使用
 * 运行: node scripts/svg-to-png.js
 */
const fs = require('fs');
const path = require('path');

const dir = path.join(__dirname, '..', 'static', 'icons');
const names = [
  'tab-message',
  'tab-message-active',
  'tab-contacts',
  'tab-contacts-active',
  'tab-app',
  'tab-app-active'
];

async function run() {
  let sharp;
  try {
    sharp = require('sharp');
  } catch (e) {
    console.error('请先安装 sharp: npm install sharp');
    process.exit(1);
  }
  const size = 81;
  for (const name of names) {
    const svgPath = path.join(dir, name + '.svg');
    const pngPath = path.join(dir, name + '.png');
    if (!fs.existsSync(svgPath)) {
      console.warn('跳过（不存在）:', svgPath);
      continue;
    }
    const svg = fs.readFileSync(svgPath);
    await sharp(svg)
      .resize(size, size)
      .png()
      .toFile(pngPath);
    console.log('生成:', pngPath);
  }
  // 同步到构建输出目录，避免 tab 图标不更新
  const distDir = path.join(__dirname, '..', 'unpackage', 'dist', 'dev', 'app-plus', 'static', 'icons');
  if (fs.existsSync(distDir)) {
    for (const name of names) {
      const src = path.join(dir, name + '.png');
      const dest = path.join(distDir, name + '.png');
      if (fs.existsSync(src)) fs.copyFileSync(src, dest);
    }
    console.log('已同步到 unpackage/dist/dev/app-plus/static/icons/');
  }
  console.log('完成。');
}

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