From 991c5313c5aff5a3f9f2ba828355e9928c710308 Mon Sep 17 00:00:00 2001
From: Mylloon <kennel.anri@tutanota.com>
Date: Thu, 23 Jun 2022 02:54:42 +0200
Subject: [PATCH] cache readme data

---
 src/routes/index.js |  2 +-
 src/utils/readme.js | 27 +++++++++++++++++++++++----
 2 files changed, 24 insertions(+), 5 deletions(-)

diff --git a/src/routes/index.js b/src/routes/index.js
index 240e5a5..d4fbba4 100644
--- a/src/routes/index.js
+++ b/src/routes/index.js
@@ -5,7 +5,7 @@ const readme = require('../utils/readme')
 
 // Home Page
 router.get('/', (_, res) => {
-    readme.data()
+    readme.get()
         .then(data => res.render('index', { readme: marked.parse(data) }))
 })
 
diff --git a/src/utils/readme.js b/src/utils/readme.js
index 05b9917..2acfb03 100644
--- a/src/utils/readme.js
+++ b/src/utils/readme.js
@@ -1,10 +1,29 @@
 const fetch = require('node-fetch')
 
-async function data () {
-    return await fetch('https://git.kennel.ml/Anri/Constnium/raw/branch/main/README.md')
-        .then(res => res.text())
+// URL of the repo
+const repoURL = 'https://git.kennel.ml/Anri/Constnium/raw/branch/main/README.md'
+
+// Store the data from the repo
+let data = null
+
+// Store last time data as been pulled from the repo
+let timestamp = 0
+
+// Retrieve the data from the repo
+async function get () {
+    const now = Date.now()
+    // If data is older than one day, refresh it
+    if (Math.ceil(Math.abs(now - timestamp) / (1000 * 3600 * 24)) > 2 || data === null) {
+        await fetch(repoURL)
+            .then(res => {
+                data = res.text()
+                timestamp = now
+            })
+    }
+
+    return data
 }
 
 module.exports = {
-    data
+    get
 }