From ce4d0aac614cb01c9dc4a9e24db141431f2b3d60 Mon Sep 17 00:00:00 2001
From: siumairice <nicoleam.go@gmail.com>
Date: Tue, 15 Aug 2023 03:04:08 -0400
Subject: [PATCH] add coin decay cron job

---
 src/components/cron.ts | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/components/cron.ts b/src/components/cron.ts
index 4b8e5ca5..1dab478b 100644
--- a/src/components/cron.ts
+++ b/src/components/cron.ts
@@ -19,6 +19,7 @@ import {
 import { updateMemberRole, getRoleName, loadRoleMembers } from '../utils/roles';
 import { CodeyUserError } from '../codeyUserError';
 import { logger } from '../logger/default';
+import { openDB } from './db';
 
 const NOTIF_CHANNEL_ID: string = vars.NOTIF_CHANNEL_ID;
 const OFFICE_STATUS_CHANNEL_ID: string = vars.OFFICE_STATUS_CHANNEL_ID;
@@ -38,6 +39,7 @@ export const initCrons = async (client: Client): Promise<void> => {
   createCoffeeChatCron(client).start();
   createOfficeStatusCron(client).start();
   assignCodeyRoleForLeaderboard(client).start();
+  createCoinDecayCron().start();
 };
 
 interface officeStatus {
@@ -165,3 +167,10 @@ export const assignCodeyRoleForLeaderboard = (client: Client): CronJob =>
       }
     });
   });
+
+// Decays the Codey Coin Balances on January 1, May 1, and September 1
+export const createCoinDecayCron = (): CronJob =>
+  new CronJob('0 0 1 1,5,9 *', async function () {
+    const db = await openDB();
+    await db.run('UPDATE user_coin SET balance = ROUND(balance / 3)');
+  });