Function renderTopicIndex

tools/scripts/sync-algomooc-index.js:152–185

(items)

}

function renderTopicIndex(items) {
  const groups = new Map();
  for (const item of items) {
    for (const topic of item.topicsZh) {
      if (!groups.has(topic)) groups.set(topic, []);
      groups.get(topic).push(item);
    }
  }

  const sections = Array.from(groups.entries())
    .sort((a, b) => b[1].length - a[1].length || a[0].localeCompare(b[0]))
    .map(([topic, topicItems]) => {
      const rows = topicItems
        .sort((a, b) => a.leetcodeId - b.leetcodeId)
        .map((item) => `| ${item.leetcodeId} | ${item.titleZh} | ${difficultyZh(item.difficulty)} | ${item.categoryZh} | [${item.slug}](${item.siteUrl}) |`);
      return `## ${topic}（${topicItems.length}）

| # | 题目 | 难度 | 分类 | 网站路径 |
| :-- | :-- | :-- | :-- | :-- |
${rows.join("\n")}
`;
    });

  return `# LeetCode 动画专题索引

本文件由 \`tools/scripts/sync-algomooc-index.js\` 生成，按 \`docs/data/manifest.json\` 中的 \`topicsZh\` 分组。

- LeetCode 题数：${items.length}
- 专题数量：${groups.size}
- 按题号查看：[\`docs/leetcode-animation-index.md\`](leetcode-animation-index.md)

${sections.join("\n").trimEnd()}
`;
}

function manifestText(items) {
  return `${JSON.stringify(items, null, 2)}\n`;