const MarkdownRenderer = {
    init() {
        // 配置 marked.js
        marked.setOptions({
            highlight: function(code, lang) {
                if (lang && hljs.getLanguage(lang)) {
                    return hljs.highlight(code, { language: lang }).value;
                }
                return hljs.highlightAuto(code).value;
            },
            breaks: true,
            gfm: true
        });
    },

    render(text) {
        if (!text) return '';
        let html = marked.parse(text);
        // 为代码块添加复制按钮
        html = html.replace(/<pre><code/g, '<pre><button class="copy-btn" onclick="MarkdownRenderer.copyCode(this)">复制</button><code');
        return html;
    },

    copyCode(btn) {
        const code = btn.nextElementSibling;
        navigator.clipboard.writeText(code.textContent).then(() => {
            btn.textContent = '已复制';
            setTimeout(() => { btn.textContent = '复制'; }, 2000);
        });
    }
};

// 初始化
MarkdownRenderer.init();