feat: add 巴哈姆特電玩資訊站熱門推薦 (#5826)

Co-authored-by: Henry Wang <hi@henry.wang>

docs/bbs.md

@@ -178,6 +178,12 @@ pageClass: routes
 
 <Route author="liyefox" example="/v2ex/tab/hot" path="/v2ex/tab/:tabid" :paramsDesc="['tab标签ID,在 URL 可以找到']"/>
 
+## 巴哈姆特電玩資訊站
+
+### 熱門推薦
+
+<Route author="nczitzk" example="/gamer/hot/47157" path="/gamer/hot/:bsn" :paramsDesc="['板块 id，在 URL 可以找到']"/>
+
 ## 才符
 
 ### 用户动态

lib/router.js

@@ -3260,6 +3260,9 @@ router.get('/appsales/:caty?/:time?', require('./routes/appsales/index'));
 // CGTN
 router.get('/cgtn/top', require('./routes/cgtn/top'));
 
+// 巴哈姆特電玩資訊站
+router.get('/gamer/hot/:bsn', require('./routes/gamer/hot'));
+
 // iCity
 router.get('/icity/:id', require('./routes/icity/index'));
 

lib/routes/gamer/hot.js

@@ -0,0 +1,49 @@
+const got = require('@/utils/got');
+const cheerio = require('cheerio');
+
+module.exports = async (ctx) => {
+    const rootUrl = `https://forum.gamer.com.tw/A.php?bsn=${ctx.params.bsn}`;
+    const response = await got({
+        method: 'get',
+        url: rootUrl,
+    });
+
+    const $ = cheerio.load(response.data);
+    const list = $('div.FM-abox2A a.FM-abox2B')
+        .slice(0, 10)
+        .map((_, item) => {
+            item = $(item);
+            return {
+                link: `https:${item.attr('href')}`,
+            };
+        })
+        .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);
+
+                    content('div.c-post__body__buttonbar').remove();
+
+                    item.title = content('.c-post__header__title').text();
+                    item.description = content('div.c-post__body').html();
+                    item.author = `${content('a.username').eq(0).text()} (${content('a.userid').eq(0).text()})`;
+                    item.pubDate = new Date(content('a.edittime').eq(0).attr('data-mtime') + ' GMT+8').toUTCString();
+
+                    return item;
+                })
+        )
+    );
+
+    ctx.state.data = {
+        title: $('title').text(),
+        link: rootUrl,
+        item: items,
+    };
+};