From ad393f4243a10f9a5ab0ecd8afa5e6c07a088f5d Mon Sep 17 00:00:00 2001
From: eug-vs <eugene@eug-vs.xyz>
Date: Sun, 23 Oct 2022 01:30:18 +0300
Subject: feat: add pre-render hook

---
 src/config.ts | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'src/config.ts')

diff --git a/src/config.ts b/src/config.ts
index 544d15c..ab0ec12 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -1,3 +1,4 @@
+import _ from 'lodash';
 import { BenzinConfig  } from './lib/types';
 import nginxAdapter from './lib/nginxAdapter';
 
@@ -11,6 +12,24 @@ const config: BenzinConfig = {
     emojiRoot: '/public/emoji',
     css: '/public/style.css?h=benzin-next-cdn',
   },
+  hooks: {
+    async preRender(path, data, adapter, cdn) {
+      if (path.length === 1 && path[0] === 'index') {
+        // Inject blog preview into home page
+        const blog = await adapter.getMarkdownSource(cdn, ['blog', 'index']);
+        const previewContent = blog
+        .split('\n')
+        .filter(line => line.startsWith('-'))
+        .slice(0, 4)
+        .join('\n');
+
+        const split = data.split('# Recent blog posts');
+        return [split[0], '# Recent blog posts\n', previewContent, split[1]].join('');
+      }
+
+      return data;
+    }
+  },
 };
 
 export default config;
-- 
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