From f3be3b1f3c2c6b15ffce320e3050f6bd92dacf9d Mon Sep 17 00:00:00 2001
From: Ian Philips <iansphilips@gmail.com>
Date: Wed, 25 May 2022 15:55:50 -0600
Subject: [PATCH] Maybe free market countdown will work now, beats me

---
 web/hooks/use-has-created-contract-today.ts | 35 ++++++++++++++++-----
 1 file changed, 27 insertions(+), 8 deletions(-)

diff --git a/web/hooks/use-has-created-contract-today.ts b/web/hooks/use-has-created-contract-today.ts
index f63f5ac1..8f05287c 100644
--- a/web/hooks/use-has-created-contract-today.ts
+++ b/web/hooks/use-has-created-contract-today.ts
@@ -1,17 +1,36 @@
 import { listContracts } from 'web/lib/firebase/contracts'
 import { useEffect, useState } from 'react'
 import { User } from 'common/user'
+import dayjs from 'dayjs'
+import utc from 'dayjs/plugin/utc'
+dayjs.extend(utc)
 
 let sessionCreatedContractToday = true
 
-export function getUtcFreeMarketResetTime(yesterday: boolean) {
-  // Uses utc time like the server.
-  const utcFreeMarketResetTime = new Date()
-  utcFreeMarketResetTime.setUTCDate(
-    utcFreeMarketResetTime.getUTCDate() - (yesterday ? 1 : 0)
-  )
-  const utcFreeMarketMS = utcFreeMarketResetTime.setUTCHours(16, 0, 0, 0)
-  return utcFreeMarketMS
+export function getUtcFreeMarketResetTime(previous: boolean) {
+  const localTimeNow = new Date()
+  const utc4pmToday = dayjs()
+    .utc()
+    .set('hour', 16)
+    .set('minute', 0)
+    .set('second', 0)
+    .set('millisecond', 0)
+
+  // if it's after 4pm UTC today
+  if (localTimeNow.getTime() > utc4pmToday.valueOf()) {
+    return previous
+      ? // Return it as it is
+        utc4pmToday.valueOf()
+      : // Or add 24 hours to get the next 4pm UTC time:
+        utc4pmToday.valueOf() + 24 * 60 * 60 * 1000
+  }
+
+  // 4pm UTC today is coming up
+  return previous
+    ? // Subtract 24 hours to get the previous 4pm UTC time:
+      utc4pmToday.valueOf() - 24 * 60 * 60 * 1000
+    : // Return it as it is
+      utc4pmToday.valueOf()
 }
 
 export const useHasCreatedContractToday = (user: User | null | undefined) => {