feat: add 洛谷日报文章全文 (#5503)

docs/programming.md

@@ -564,13 +564,11 @@ GitHub 官方也提供了一些 RSS:
 
 ### 日报
 
-<Route author="LogicJake prnake" example="/luogu/daily" path="/luogu/daily/:id?" :paramsDesc="['年度日报所在帖子id，可在 URL 中找到，不填默认为2020年日报']">
-</Route>
+<Route author="LogicJake prnake nczitzk" example="/luogu/daily" path="/luogu/daily/:id?" :paramsDesc="['年度日报所在帖子id，可在 URL 中找到，不填默认为2020年日报']"/>
 
 ### 近期比赛
 
-<Route author="prnake" example="/luogu/contest" path="/luogu/contest">
-</Route>
+<Route author="prnake" example="/luogu/contest" path="/luogu/contest"/>
 
 ## 码农俱乐部
 

lib/routes/luogu/daily.js

@@ -13,16 +13,42 @@ module.exports = async (ctx) => {
         .map(function () {
             const info = {
                 title: $(this).find('strong').text() || $(this).text(),
-                description: $(this).html(),
                 link: $(this).find('a').attr('href'),
             };
             return info;
         })
         .get();
 
+    const items = await Promise.all(
+        out.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);
+                    const timeRegExp = new RegExp(/(?<=([1-9]\d{3}-(0[1-9]|1[0-2])-(0[1-9]|[1-2][0-9]|3[0-1])\s+(20|21|22|23|[0-1]\d):[0-5]\d:[0-5]\d))/);
+
+                    item.description = content('#article-content').html();
+
+                    content('#article-content').remove();
+
+                    const line = content
+                        .html()
+                        .split('\n')
+                        .find((line) => timeRegExp.test(line));
+
+                    item.pubDate = new Date(line.match(timeRegExp)[1] + ' GMT+8').toUTCString();
+
+                    return item;
+                })
+        )
+    );
+
     ctx.state.data = {
         title: title,
         link: link,
-        item: out,
+        item: items,
     };
 };