feat: add数英网文章及项目专题 (#2204)

* add 数英网

* fix: 部分标题无法显示

* feat: add数英网文章及项目专题

* remove duplicate route

lib/routes/digitaling/project.js

@@ -0,0 +1,57 @@
+const cheerio = require('cheerio');
+const axios = require('@/utils/axios');
+
+// 分类标题
+const categoryTitle = new Map([
+    ['all', { name: '全部' }],
+    ['weekly', { name: '每周项目精选' }],
+    ['monthly', { name: '每月项目精选' }],
+    ['international', { name: '海外项目精选' }],
+    ['hot', { name: '近期热门项目' }],
+    ['favorite', { name: '近期最多收藏' }],
+]);
+
+module.exports = async (ctx) => {
+    const category = ctx.params.category;
+    const link = `https://www.digitaling.com/projects/${category}`;
+    const res = await axios.get(link);
+    const $ = cheerio.load(res.data);
+    // 标题
+    const title = categoryTitle.get(category).name;
+    // 文章列表
+    const list = $('#pro_list .works_title h3')
+        .find('a')
+        .map((i, e) => $(e).attr('href'))
+        .get();
+
+    const out = await Promise.all(
+        list.map(async (itemUrl) => {
+            const cache = await ctx.cache.get(itemUrl);
+            // 判断缓存
+            if (cache) {
+                return Promise.resolve(JSON.parse(cache));
+            }
+            const res = await axios.get(itemUrl);
+            const $ = cheerio.load(res.data);
+
+            const item = {
+                title: $('.clearfix h2').text(),
+                author: $('#avatar_by')
+                    .find('a')
+                    .text(),
+                link: itemUrl,
+                description: $('#article_con').html(),
+                pubDate: new Date().toUTCString(),
+            };
+            ctx.cache.set(itemUrl, JSON.stringify(item));
+
+            return Promise.resolve(item);
+        })
+    );
+
+    ctx.state.data = {
+        title: `数英网-项目专题-${title}`,
+        link: link,
+        item: out,
+    };
+};