From 66a30af77788361a569f8786e50f6afacf937a68 Mon Sep 17 00:00:00 2001
From: Joe Carstairs <65492573+Sycamost@users.noreply.github.com>
Date: Thu, 7 Mar 2024 23:06:41 +0000
Subject: Can list and unsubscribe

---
 src/db.js | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'src/db.js')

diff --git a/src/db.js b/src/db.js
index 52652fd..f96f0a0 100644
--- a/src/db.js
+++ b/src/db.js
@@ -40,6 +40,17 @@ function getSubscriptionFromNumber(number) {
   return subscriptions.find(sub => sub.number === number);
 }
 
+/**
+ * @param {string} number
+ */
+function unsubscribe(number) {
+  const index = subscriptions.findIndex(sub => sub.number === number);
+  if (index === -1) {
+    return null;
+  }
+  return subscriptions.splice(index, 1)[0];
+}
+
 async function save() {
   try {
     await fs.promises.writeFile('./data.json', JSON.stringify({ subscriptions }));
@@ -69,6 +80,7 @@ function load() {
 
 module.exports = {
   subscribe,
+  unsubscribe,
   isSubscribed,
   getSubscriptions,
   getSubscriptionFromNumber,
-- 
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