From 34af666b5fbed6a6dd49292b6849ce6f1ea44d3c Mon Sep 17 00:00:00 2001
From: Aaryan Khandelwal <65252264+aaryan610@users.noreply.github.com>
Date: Thu, 28 Sep 2023 13:17:46 +0530
Subject: [PATCH] chore: fetch issues from previous and next month in the
 calendar view (#2282)

---
 web/hooks/use-calendar-issues-view.tsx | 28 ++++++++++++++++++++++----
 1 file changed, 24 insertions(+), 4 deletions(-)

diff --git a/web/hooks/use-calendar-issues-view.tsx b/web/hooks/use-calendar-issues-view.tsx
index 1f6f04ea8..5f21d63c5 100644
--- a/web/hooks/use-calendar-issues-view.tsx
+++ b/web/hooks/use-calendar-issues-view.tsx
@@ -33,8 +33,28 @@ const useCalendarIssuesView = () => {
 
   const [activeMonthDate, setActiveMonthDate] = useState(new Date());
 
-  const firstDayOfMonth = new Date(activeMonthDate.getFullYear(), activeMonthDate.getMonth(), 1);
-  const lastDayOfMonth = new Date(activeMonthDate.getFullYear(), activeMonthDate.getMonth() + 1, 0);
+  // previous month's first date
+  const previousMonthYear =
+    activeMonthDate.getMonth() === 0
+      ? activeMonthDate.getFullYear() - 1
+      : activeMonthDate.getFullYear();
+  const previousMonthMonth = activeMonthDate.getMonth() === 0 ? 11 : activeMonthDate.getMonth() - 1;
+
+  const previousMonthFirstDate = new Date(previousMonthYear, previousMonthMonth, 1);
+
+  // next month's last date
+  const nextMonthYear =
+    activeMonthDate.getMonth() === 11
+      ? activeMonthDate.getFullYear() + 1
+      : activeMonthDate.getFullYear();
+  const nextMonthMonth = (activeMonthDate.getMonth() + 1) % 12;
+  const nextMonthFirstDate = new Date(nextMonthYear, nextMonthMonth, 1);
+
+  const nextMonthLastDate = new Date(
+    nextMonthFirstDate.getFullYear(),
+    nextMonthFirstDate.getMonth() + 1,
+    0
+  );
 
   const router = useRouter();
   const { workspaceSlug, projectId, cycleId, moduleId, viewId } = router.query;
@@ -47,8 +67,8 @@ const useCalendarIssuesView = () => {
     labels: filters?.labels ? filters?.labels.join(",") : undefined,
     created_by: filters?.created_by ? filters?.created_by.join(",") : undefined,
     start_date: filters?.start_date ? filters?.start_date.join(",") : undefined,
-    target_date: `${renderDateFormat(firstDayOfMonth)};after,${renderDateFormat(
-      lastDayOfMonth
+    target_date: `${renderDateFormat(previousMonthFirstDate)};after,${renderDateFormat(
+      nextMonthLastDate
     )};before`,
   };