update subscription

app/src/i18n.ts

@@ -123,6 +123,7 @@ const resources = {
           3: "3 Months",
           6: "6 Months",
           12: "1 Year",
+          36: "3 Years",
         },
         success: "Subscribe success",
         "success-prompt":
@@ -284,6 +285,7 @@ const resources = {
           3: "3个月",
           6: "半年",
           12: "1年",
+          36: "3年",
         },
         success: "订阅成功",
         "success-prompt": "您已成功订阅 {{month}} 月专业版。",
@@ -449,6 +451,7 @@ const resources = {
           3: "3 месяца",
           6: "6 месяцев",
           12: "1 год",
+          36: "3 года",
         },
         success: "Подписка успешна",
         "success-prompt": "Вы успешно подписались на {{month}} месяцев Pro.",

app/src/routes/Subscription.tsx

@@ -115,6 +115,12 @@ function Upgrade({ children }: UpgradeProps) {
                   {t(`percent`, { cent: 8 })}
                 </Badge>
               </SelectItem>
+              <SelectItem value={"36"}>
+                {t(`sub.time.36`)}
+                <Badge className={`ml-2 cent`}>
+                  {t(`percent`, { cent: 7 })}
+                </Badge>
+              </SelectItem>
             </SelectContent>
           </Select>
           <p className={`price`}>

auth/subscription.go

@@ -9,10 +9,15 @@ import (
 )
 
 func CountSubscriptionPrize(month int) float32 {
-	if month >= 12 {
+	base := 8 * float32(month)
-		return 8 * float32(month) * 0.9
+	if month >= 36 {
+		return base * 0.7
+	} else if month >= 12 {
+		return base * 0.8
+	} else if month >= 6 {
+		return base * 0.9
 	}
-	return 8 * float32(month)
+	return base
 }
 
 func BuySubscription(db *sql.DB, user *User, month int) bool {