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

// 生成版本号（格式：YYYYMMDD-HHmmss）
function generateVersion() {
    const now = new Date();
    const year = now.getFullYear();
    const month = String(now.getMonth() + 1).padStart(2, '0');
    const day = String(now.getDate()).padStart(2, '0');
    const hours = String(now.getHours()).padStart(2, '0');
    const minutes = String(now.getMinutes()).padStart(2, '0');
    const seconds = String(now.getSeconds()).padStart(2, '0');
    return `${year}${month}${day}-${hours}${minutes}${seconds}`;
}

// 更新 index.html 中的版本号
function updateVersion() {
    const htmlPath = path.join(__dirname, '../index.html');

    if (!fs.existsSync(htmlPath)) {
        console.error('❌ index.html 文件不存在:', htmlPath);
        process.exit(1);
    }

    let html = fs.readFileSync(htmlPath, 'utf8');
    const version = generateVersion();

    // 替换版本号
    if (html.includes('<meta name="version"')) {
        html = html.replace(
            /<meta name="version" content="[^"]*">/,
            `<meta name="version" content="${version}">`
        );
    } else {
        // 如果不存在版本号 meta 标签，在 charset 后面添加
        html = html.replace(
            /<meta charset="UTF-8"\/>/,
            `<meta charset="UTF-8"/>\n    <!-- 版本号：每次发布时自动更新 -->\n    <meta name="version" content="${version}">`
        );
    }

    fs.writeFileSync(htmlPath, html, 'utf8');
    console.log(`✅ 版本号已更新为: ${version}`);
}

updateVersion();