feat: add blog_options and rss feed generation

app/index.js

@@ -8,6 +8,42 @@ import app from './server/app.js';
 import debug from 'debug';
 debug('pathtoglory:server');
 import http from 'http';
+import rssGenerator from './server/rss/index.js';
+import PostController from './server/controllers/Post.controller.js';
+import OptionController from './server/controllers/Option.controller.js';
+
+// Check needed options
+Promise.all([
+  OptionController.get('blog_name'),
+  OptionController.get('blog_description'),
+  `https://${process.env.RP_ID}/`,
+  PostController.getAll()
+])
+  .then(([name, description, link, posts]) => {
+    rssGenerator.setChannel(
+      name || process.env.RP_NAME,
+      description || '',
+      link,
+      posts[0] ? new Date(posts[0].updated_at) : new Date()
+    );
+
+    posts 
+      .map(post => {
+        return {
+          title: post.title,
+          description: post.content.slice(0, 255),
+          link: `${link}/posts/${post.id}`,
+        }
+      })
+      .forEach(post => {
+        rssGenerator.addItem(post);
+      });
+
+    rssGenerator.generateFile();
+  })
+  .catch(err => {
+    console.error(err);
+  });
 
 /**
  * Get port from environment and store in Express.