#!/usr/bin/env node

const fs = require('fs');
const path = require('path');
const { execSync } = require('child_process');

// 检查是否安装了 sharp
try {
  require.resolve('sharp');
} catch (e) {
  console.log('正在安装 sharp...');
  execSync('npm install sharp', { stdio: 'inherit', cwd: __dirname });
}

const sharp = require('sharp');

const iconsDir = path.join(__dirname, 'miniprogram', 'assets', 'icons');
const svgFiles = [
  'font-size-decrease',
  'font-size-increase', 
  'choose-color',
  'export',
  'export-svg',
  'export-png',
  'font-icon',
  'expand',
  'selectall',
  'unselectall',
  'checkbox'
];

async function convertSvgToPng() {
  console.log('开始转换 SVG 为 PNG...\n');
  
  for (const name of svgFiles) {
    const svgPath = path.join(iconsDir, `${name}.svg`);
    const pngPath = path.join(iconsDir, `${name}.png`);
    
    if (!fs.existsSync(svgPath)) {
      console.log(`⚠️  ${name}.svg 不存在，跳过`);
      continue;
    }
    
    try {
      await sharp(svgPath, { density: 300 })
        .resize(128, 128, { fit: 'contain', background: { r: 0, g: 0, b: 0, alpha: 0 } })
        .png()
        .toFile(pngPath);
      
      console.log(`✅ ${name}.svg -> ${name}.png`);
    } catch (error) {
      console.error(`❌ 转换 ${name}.svg 失败:`, error.message);
    }
  }
  
  console.log('\n转换完成！');
}

convertSvgToPng().catch(console.error);