feat: 优化"王垠的博客-当然我在扯淡" (#2646)

* feat: 优化"王垠的博客-当然我在扯淡"

* 删除文章数量参数

lib/routes/blogs/wangyin.js

@@ -3,27 +3,45 @@ const cheerio = require('cheerio');
 
 module.exports = async (ctx) => {
     const url = 'https://www.yinwang.org';
-    const response = await got({
-        method: 'get',
-        url,
-    });
+    const response = await got({ method: 'get', url });
     const $ = cheerio.load(response.data);
-    const resultItem = $("li[class='list-group-item title']")
-        .map((index, elem) => {
-            elem = $(elem);
+
+    const list = $("li[class='list-group-item title']")
+        .map((i, e) => {
+            const element = $(e);
+            const title = element.find('a').text();
+            const link = url + element.find('a').attr('href');
 
             return {
-                title: elem.find('a').text(),
-                description: elem.find('a').text(),
-                link: url + elem.find('a').attr('href'),
+                title: title,
+                description: '',
+                link: link,
                 author: '王垠',
             };
         })
         .get();
 
+    const result = await Promise.all(
+        list.map(async (item) => {
+            const link = item.link;
+
+            const cache = await ctx.cache.get(link);
+            if (cache) {
+                return Promise.resolve(JSON.parse(cache));
+            }
+
+            const itemReponse = await got.get(link);
+            const itemElement = cheerio.load(itemReponse.data);
+            item.description = itemElement('.inner').html();
+
+            ctx.cache.set(link, JSON.stringify(item));
+            return Promise.resolve(item);
+        })
+    );
+
     ctx.state.data = {
-        title: '王垠的博客-当然我在扯淡',
+        title: '王垠的博客 - 当然我在扯淡',
         link: url,
-        item: resultItem,
+        item: result,
     };
 };