import { markdownToPngBuffer } from 'markdown2png';
import fs from 'fs';

const markdown = `
# 🎨 Hello World

This is a **markdown** text with some *italic* and a [link](https://example.com).

> 这是一个引用块，展示了美化后的样式效果。

## 特性列表
- ✨ 美观的渐变背景
- 🎯 现代化的排版设计  
- 🌈 丰富的颜色搭配

\`\`\`javascript
function hello() {
    console.log("Hello, World!");
    return "Beautiful Markdown";
}
\`\`\`
`;

// 加载字体（Windows 示例）
const loadFont = (path: string): Buffer => {
    try {
        return fs.readFileSync(path);
    } catch {
        throw new Error(`Font not found: ${path}`);
    }
};

const fonts = [
    {
        name: "Chinese Font",
        data: loadFont("C:/Windows/Fonts/msyh.ttf"), // 微软雅黑
        weight: 400,
        style: "normal",
    },
    {
        name: "Emoji Font", 
        data: loadFont("C:/Windows/Fonts/seguiemj.ttf"), // Emoji 字体
        weight: 400,
        style: "normal",
    }
];

// 生成 PNG
const pngBuffer = await markdownToPngBuffer(markdown, fonts, 1000);
fs.writeFileSync("output.png", pngBuffer);

// 自定义宽度
const pngBuffer = await markdownToPngBuffer(markdown, fonts, 1200);

// 使用多种字体
const fonts = [
    {
        name: "Noto Sans",
        data: loadFont("/path/to/NotoSans-Regular.ttf"),
        weight: 400,
        style: "normal",
    },
    {
        name: "Noto Sans",
        data: loadFont("/path/to/NotoSans-Bold.ttf"),
        weight: 700, 
        style: "normal",
    }
];