feat(route): add Deepseek news route (#17967)

* feat(route): add Deepseek news route

* Fix news.ts

* Add cache

* Fix news.ts

移除 async

* Update news.ts

lib/routes/deepseek/namespace.ts

@@ -0,0 +1,8 @@
+import type { Namespace } from '@/types';
+
+export const namespace: Namespace = {
+    name: 'Deepseek',
+    url: 'api-docs.deepseek.com',
+    description: 'Deepseek API 文档。',
+    lang: 'zh-CN',
+};

lib/routes/deepseek/news.ts

@@ -0,0 +1,95 @@
+import { Route, Data, DataItem } from '@/types';
+import ofetch from '@/utils/ofetch';
+import { load } from 'cheerio';
+import cache from '@/utils/cache';
+
+const ROOT_URL = 'https://api-docs.deepseek.com/zh-cn';
+
+const NEWS_LIST_SELECTOR = 'ul.menu__list > li:nth-child(2) ul > li.theme-doc-sidebar-item-link';
+const ARTICLE_CONTENT_SELECTOR = '.theme-doc-markdown > div > div';
+const ARTICLE_TITLE_SELECTOR = ARTICLE_CONTENT_SELECTOR + ' > h1';
+
+
+// 获取消息列表 / get article list
+const fetchPageContent = async (url: string) => {
+    const response = await ofetch(url);
+    return load(response);
+};
+
+// 提取正文内容 / extract article content
+const extractArticleInfo = ($article: cheerio.Root, pageURL: string) => {
+    const contentElement = $article(ARTICLE_CONTENT_SELECTOR);
+    const title = $article(ARTICLE_TITLE_SELECTOR).text();
+    $article(ARTICLE_TITLE_SELECTOR).remove();  // 移除标题，避免重复 / remove title to avoid duplication
+    const content = contentElement.html();
+    return { title, content, pageURL };
+};
+
+const parseDateString = (dateString: string) => {
+    const pubDate = new Date(dateString);
+    return pubDate.toUTCString();
+};
+
+
+// 创建消息 / create article
+const createDataItem = (item: cheerio.Element, $: cheerio.Root): Promise<DataItem> => {
+    const $item = $(item);
+    const link = $item.find('a').attr('href');
+    const dateString = $item.find('a').text().split(' ').at(-1);
+    const pageURL = new URL(link || '', ROOT_URL).href;
+
+    return cache.tryGet(
+        pageURL,
+        async () => {
+            const $article = await fetchPageContent(pageURL);
+            const { title, content } = extractArticleInfo($article, pageURL);
+            const pubDate = parseDateString(dateString);
+
+            return {
+                title,
+                link: pageURL,
+                pubDate,
+                description: content || undefined,
+            };
+        },
+    );
+};
+
+const handler = async (): Promise<Data> => {
+    const $ = await fetchPageContent(ROOT_URL);
+    const newsList = $(NEWS_LIST_SELECTOR);
+
+    const items: DataItem[] = await Promise.all(
+        newsList.toArray().map((li) => createDataItem(li, $))
+    );
+
+    return {
+        title: 'DeepSeek 新闻',
+        link: ROOT_URL,
+        item: items,
+        allowEmpty: true,
+    };
+};
+
+export const route: Route = {
+    path: '/news',
+    categories: ['programming'],
+    example: '/deepseek/news',
+    features: {
+        requireConfig: false,
+        requirePuppeteer: false,
+        antiCrawler: false,
+        supportBT: false,
+        supportPodcast: false,
+        supportScihub: false,
+    },
+    radar: [
+        {
+            source: ['api-docs.deepseek.com'],
+            target: '/news',
+        },
+    ],
+    name: '新闻',
+    maintainers: ['1837634311'],
+    handler,
+};