feat: add 新闻联播 (#3004)

* feat: add 新闻联播

* fix: newline

* use dayjs to replace luxon

docs/traditional-media.md

@@ -315,6 +315,12 @@ category 对应的关键词有
 
 ## 央视新闻
 
+### 新闻联播
+
+<Route author="zengxs" example="/cctv/xwlb" path="/cctv/xwlb">
+新闻联播内容摘要。
+</Route>
+
 ### 专题
 
 <Route author="idealclover xyqfer" example="/cctv/world" path="/cctv/:category" :paramsDesc="['分类名']">

lib/router.js

@@ -290,6 +290,8 @@ router.get('/tingshuitz/wuhan', require('./routes/tingshuitz/wuhan'));
 router.get('/mihoyo/bh3/:type', require('./routes/mihoyo/bh3'));
 router.get('/mihoyo/bh2/:type', require('./routes/mihoyo/bh2'));
 
+// 新闻联播
+router.get('/cctv/xwlb', require('./routes/cctv/xwlb'));
 // 央视新闻
 router.get('/cctv/:category', require('./routes/cctv/category'));
 

lib/routes/cctv/xwlb.js

@@ -0,0 +1,55 @@
+const got = require('@/utils/got');
+const date = require('@/utils/date');
+const cheerio = require('cheerio');
+const dayjs = require('dayjs');
+require('dayjs/locale/zh-cn');
+
+module.exports = async (ctx) => {
+    const res = await got({ method: 'get', url: 'http://tv.cctv.com/lm/xwlb/' });
+    const $ = cheerio.load(res.data);
+    // 解析最新一期新闻联播的日期
+    const latestDate = dayjs(
+        date(
+            $('.md .mh_title > a')
+                .text()
+                .replace(/\s/g, '')
+        ),
+        { locale: 'zh-cn' }
+    );
+    const count = [];
+    for (let i = 0; i < 20; i++) {
+        count.push(i);
+    }
+    const resultItems = await Promise.all(
+        count.map(async (i) => {
+            const newsDate = latestDate.subtract(i, 'days').set('hour', 19);
+            const url = `http://tv.cctv.com/lm/xwlb/day/${newsDate.format('YYYYMMDD')}.shtml`;
+            const item = {
+                title: `新闻联播 ${newsDate.format('YYYY/MM/DD')}`,
+                link: url,
+                pubDate: newsDate.toISOString(),
+                description: await ctx.cache.tryGet(url, async () => {
+                    const res = await got.get(url);
+                    const content = cheerio.load(res.data);
+                    const alist = new Array();
+                    content('a').map((i, e) => {
+                        const a = content(e);
+                        const href = a.attr('href');
+                        const title = a.find('.text .title').text();
+                        const dur = a.find('.text .bottom').text();
+                        alist.push(`<a href="${href}">${title} ⏱${dur}</a>`);
+                        return i;
+                    });
+                    return alist.join('<br/>\n');
+                }),
+            };
+            return Promise.resolve(item);
+        })
+    );
+
+    ctx.state.data = {
+        title: 'CCTV 新闻联播',
+        link: 'http://tv.cctv.com/lm/xwlb/',
+        item: resultItems,
+    };
+};