feat: add 半月谈时事大事库 (#6711)

* feat: add 半月谈时事大事库

* fix: fetch 10 posts each time

docs/new-media.md

@@ -684,6 +684,18 @@ Supported sub-sites:
 
 <Route author="nwindz" example="/hinatazaka46/blog" path="/hinatazaka46/blog" />
 
+## 半月谈
+
+### 时事大事库
+
+<Route author="nczitzk" example="/banyuetan/byt" path="/banyuetan/byt/:time?" :paramsDesc="['时间，见下表，默认为每周']">
+
+| 每周          | 每月  |
+| ------------- | ----- |
+| shishidashiku | yiyue |
+
+</Route>
+
 ## 報導者
 
 ### 最新

lib/router.js

@@ -1536,6 +1536,7 @@ router.get('/zjgsu/xszq', require('./routes/universities/zjgsu/xszq/scripts'));
 router.get('/dianping/user/:id?', require('./routes/dianping/user'));
 
 // 半月谈
+router.get('/banyuetan/byt/:time?', require('./routes/banyuetan/byt'));
 router.get('/banyuetan/:name', require('./routes/banyuetan'));
 
 // 人民日报

lib/routes/banyuetan/byt.js

@@ -0,0 +1,51 @@
+const got = require('@/utils/got');
+const cheerio = require('cheerio');
+
+module.exports = async (ctx) => {
+    const time = ctx.params.time || 'shishidashiku';
+
+    const rootUrl = 'http://www.banyuetan.org';
+    const currentUrl = `${rootUrl}/byt/${time}/index.html`;
+    const response = await got({
+        method: 'get',
+        url: currentUrl,
+    });
+
+    const $ = cheerio.load(response.data);
+
+    const list = $('.byt_mian_image_list_con ul li a')
+        .slice(0, 10)
+        .map((_, item) => {
+            item = $(item);
+            return {
+                link: item.attr('href'),
+                title: item.attr('title'),
+            };
+        })
+        .get();
+
+    const items = await Promise.all(
+        list.map(
+            async (item) =>
+                await ctx.cache.tryGet(item.link, async () => {
+                    const detailResponse = await got({
+                        method: 'get',
+                        url: item.link,
+                    });
+                    const content = cheerio.load(detailResponse.data);
+
+                    item.description = content('#detail_content').html();
+                    item.author = content('.detail_tit_source').text().replace('来源：', '');
+                    item.pubDate = new Date(content('meta[property="og:release_date"]').attr('content')).toUTCString();
+
+                    return item;
+                })
+        )
+    );
+
+    ctx.state.data = {
+        title: $('title').text(),
+        link: currentUrl,
+        item: items,
+    };
+};