import fs from 'node:fs';

import path from 'node:path';

const rootDir = process.cwd();

const distDir = path.join(rootDir, 'dist');

if (!fs.existsSync(distDir)) {

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

}

// 1. 读取基础配置与静态资源

const deckPath = path.join(rootDir, 'deck.json');

const deck = JSON.parse(fs.readFileSync(deckPath, 'utf8'));

const cssPath = path.join(rootDir, 'css', 'main.css');

const cssContent = fs.readFileSync(cssPath, 'utf8');

const playerPath = path.join(rootDir, 'js', 'player.js');

const playerJs = fs.readFileSync(playerPath, 'utf8');

const indexPath = path.join(rootDir, 'index.html');

let indexHtml = fs.readFileSync(indexPath, 'utf8');

// 2. 收集所有页面 HTML 片段

const fragments = {};

for (const page of deck.pages) {

const filePath = path.join(rootDir, page.path);

if (fs.existsSync(filePath)) {

fragments[page.path] = fs.readFileSync(filePath, 'utf8');

} else {

console.warn(`[WARN] Page not found: ${page.path}`);

}

}

// 3. 收集所有自定义交互模块代码

const modules = {};

for (const page of deck.pages) {

if (page.module) {

const modPath = path.join(rootDir, page.module);

if (fs.existsSync(modPath)) {

modules[page.module] = fs.readFileSync(modPath, 'utf8');

}

}

}

// 4. 构建嵌入式执行脚本

const modulesCode = Object.entries(modules)

.map(([modName, code]) => {

// 将 ES 模块转换成自执行工厂函数挂载

const cleanCode = code

.replace(/export\s+default\s+/, 'return ')

.replace(/export\s+const\s+(\w+)\s*=/, 'const $1 =')

.replace(/export\s+function\s+(\w+)/, 'function $1');

return `"${modName}": (() => { ${cleanCode}; return typeof init === 'function' ? { init } : {}; })()`;

})

.join(',\n');

const inlineScript = `

<script type="module">

window.__EMBEDDED_DECK__ = ${JSON.stringify(deck)};

window.__EMBEDDED_FRAGMENTS__ = ${JSON.stringify(fragments)};

window.__EMBEDDED_MODULES__ = { ${modulesCode} };

${playerJs}

</script>

`;

// 5. 组装为自包含的单个 HTML 文件

indexHtml = indexHtml.replace(

/<link rel="stylesheet" href="css\/main\.css[^"]*">/,

`<style>\n${cssContent}\n</style>`

);

indexHtml = indexHtml.replace(

/<script type="module" src="js\/player\.js[^"]*"><\/script>/,

inlineScript

);

const outputPath = path.join(distDir, 'deck-standalone.html');

fs.writeFileSync(outputPath, indexHtml, 'utf8');

const stats = fs.statSync(outputPath);

const sizeKb = (stats.size / 1024).toFixed(1);

console.log(`✓ Single-file standalone deck generated: dist/deck-standalone.html (${sizeKb} KB)`);

console.log(` 可以直接双击本地打开，无需任何 Web 服务器，随时发微信/飞书分享！`);