Do not send an email if there is no birthday

1 files changed, 9 insertions, 5 deletions

diff --git a/src/Main.hs b/src/Main.hs
index 9b5541c..29e9698 100644
--- a/src/Main.hs
+++ b/src/Main.hs
@@ -46,8 +46,12 @@ main = do
     (Right birthdates, Right config) -> do
       currentDate <- getCurrentDate
       let birthdays = filterBirthday currentDate birthdates
-      sendMail
-        (mailTo config)
-        (mailFrom config)
-        (mailSubject birthdays)
-        (mailBody currentDate birthdays)
+      if not (null birthdays)
+        then
+          sendMail
+            (mailTo config)
+            (mailFrom config)
+            (mailSubject birthdays)
+            (mailBody currentDate birthdays)
+        else
+          return ()