import test from 'node:test';
import assert from 'node:assert/strict';
import { contentHasMath, ensureMathRenderer, renderInlineMarkdown } from './renderMarkdown';
import { sanitizeMermaidCode } from '../components/doc/blocks/MermaidBlockView';

test('renderInlineMarkdown: renders bold, italic, strikethrough', () => {
  const input = '**粗体指标** *斜体说明* ~~废弃版本~~';
  const html = renderInlineMarkdown(input);

  assert.ok(html.includes('<strong>粗体指标</strong>'));
  assert.ok(html.includes('<em>斜体说明</em>'));
  assert.ok(html.includes('<del style="color:var(--text-muted)">废弃版本</del>'));
});

test('renderInlineMarkdown: escapes raw HTML tags to prevent XSS', () => {
  const scriptHtml = renderInlineMarkdown('<script>alert(1)</script>');
  assert.ok(!scriptHtml.includes('<script'));
  assert.ok(scriptHtml.includes('&lt;script&gt;'));

  const forged = renderInlineMarkdown('XMATHTOKENX0XENDX<script>alert(1)</script>');
  assert.ok(!forged.includes('<script'));
  assert.ok(forged.includes('XMATHTOKENX0XENDX'));

  const imgHtml = renderInlineMarkdown('<img src=x onerror=alert(1)>');
  assert.ok(!/<img[\s>]/i.test(imgHtml), 'must not emit executable img tag');
  assert.ok(imgHtml.includes('&lt;img'));

  const underlineHtml = renderInlineMarkdown('<u>重要条款</u>');
  assert.ok(!underlineHtml.includes('<u>'));
  assert.ok(underlineHtml.includes('&lt;u&gt;'));
});

test('renderInlineMarkdown: blocks javascript: link hrefs', () => {
  const html = renderInlineMarkdown('[click me](javascript:alert(1))');
  assert.ok(!html.includes('javascript:'));
  assert.ok(html.includes('href="#"'));
});

test('renderInlineMarkdown: renders inline code and preserved line breaks', () => {
  const input = '配置 `MIPI-CSI2` 接口\n第二行内容';
  const html = renderInlineMarkdown(input, { preserveNewlines: true });

  assert.ok(html.includes('<code'));
  assert.ok(html.includes('MIPI-CSI2'));
  assert.ok(html.includes('<br/>'));
});

test('renderInlineMarkdown: renders headings lists and tables for chat replies', () => {
  const input = `# 标题一
## 小节

- 项目 A
- 项目 B

| 参数 | 值 |
| --- | --- |
| 频率 | 24kHz |

---

**结论**：可行。`;
  const html = renderInlineMarkdown(input, { preserveNewlines: true });

  assert.ok(html.includes('<h1'));
  assert.ok(html.includes('标题一'));
  assert.ok(html.includes('<h2'));
  assert.ok(html.includes('<ul'));
  assert.ok(html.includes('<table'));
  assert.ok(html.includes('24kHz'));
  assert.ok(html.includes('<hr'));
  assert.ok(html.includes('<strong>结论</strong>'));
});

test('renderInlineMarkdown loads katex only after a formula is seen', async () => {
  assert.equal(contentHasMath('报价 12 元'), false);
  const pending = renderInlineMarkdown('能量 $E=mc^2$');
  assert.match(pending, /math-pending/);
  assert.equal(pending.includes('class="katex"'), false);
  await ensureMathRenderer();
  const html = renderInlineMarkdown('能量 $E=mc^2$');
  assert.match(html, /class="katex"/);
});

test('sanitizeMermaidCode: auto wraps unquoted labels containing brackets or comparison operators', () => {
  const rawMermaid = `graph LR
  LaserSource[NIR近红外与白光LED复用光源] --> FPGA[FPGA双路色彩配准与超低延迟融合引擎]
  FPGA --> Display[4K医用级超低延迟监视器 (延时 < 35ms)]
  Display --> CleanNode["已用引号包裹的 (正常节点)"]`;

  const sanitized = sanitizeMermaidCode(rawMermaid);

  // 原有含括号未包裹的节点必须被加上双引号
  assert.ok(sanitized.includes('Display["4K医用级超低延迟监视器 (延时 < 35ms)"]'));
  // 已有双引号的节点保持不变
  assert.ok(sanitized.includes('CleanNode["已用引号包裹的 (正常节点)"]'));
});