From d7c3c55c30787ff02916feb8ca76f3502bf5df46 Mon Sep 17 00:00:00 2001
From: noobdy <htommyf12@gmail.com>
Date: Wed, 1 Jan 2025 19:57:35 +0800
Subject: [PATCH] fix bug again

---
 types/semester.go | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/types/semester.go b/types/semester.go
index 515f67c..0dbfd01 100644
--- a/types/semester.go
+++ b/types/semester.go
@@ -30,16 +30,19 @@ type Semester struct {
 }
 
 func TimeToSemester(t time.Time) Semester {
-	if t.Month() >= time.September {
-		return Semester{
-			year:   t.Year(),
-			period: Fall,
-		}
-	} else {
+	switch t.Month() {
+	case time.February, time.March, time.April, time.May, time.June, time.July:
 		return Semester{
 			year:   t.Year() - 1,
 			period: Spring,
 		}
+	case time.August, time.September, time.October, time.November, time.December, time.January:
+		return Semester{
+			year:   t.Year(),
+			period: Fall,
+		}
+	default:
+		panic("impossible case: sum type in golang when")
 	}
 }