feat: infoq richContent simple render (#4684)

lib/routes/infoq/utils.js

@@ -26,7 +26,7 @@ const ProcessFeed = async (list, cache) => {
 
                 return {
                     title: data.article_title,
-                    description: data.content,
+                    description: parseContent(data.content),
                     pubDate,
                     author: author,
                     link,
@@ -40,6 +40,60 @@ const ProcessFeed = async (list, cache) => {
     return items;
 };
 
+const parseToSimpleText = (content) => parseToSimpleTexts(content).join('');
+const parseToSimpleTexts = (content) =>
+    content.map((i) => {
+        const funcMaps = {
+            doc: () =>
+                parseToSimpleTexts(i.content)
+                    .map((v) => `<p>${v}</p>`)
+                    .join(''),
+            text: () => i.text,
+            heading: () => {
+                const level = i.attrs.level;
+                const text = parseToSimpleText(i.content);
+                return `<h${level}>${text}</h${level}>`;
+            },
+            blockquote: () => {
+                const text = parseToSimpleText(i.content);
+                return `<blockquote>${text}</blockquote>`;
+            },
+            image: () => {
+                const img = i.attrs.src;
+                return `<img src="${img}"></img>`;
+            },
+            codeblock: () => {
+                const lang = i.attrs.lang;
+                const code = parseToSimpleText(i.content);
+                return `<code lang="${lang}">${code}</code>`;
+            },
+            link: () => {
+                const href = i.attrs.href;
+                const text = parseToSimpleText(i.content);
+                return `<a href="${href}">${text}</a>"`;
+            },
+        };
+
+        if (i.type in funcMaps) {
+            return funcMaps[i.type]();
+        }
+
+        if (!i.content) {
+            return '';
+        }
+
+        return parseToSimpleText(i.content);
+    });
+
+function parseContent(content) {
+    const isRichContent = content.startsWith(`{"`);
+    if (!isRichContent) {
+        return content;
+    }
+
+    return parseToSimpleText([JSON.parse(content)]);
+}
+
 module.exports = {
     ProcessFeed,
 };