Get next week birthdays and send an empty mail for the moment

1 files changed, 49 insertions, 0 deletions

diff --git a/src/Notification.hs b/src/Notification.hs
new file mode 100644
index 0000000..de4a591
--- /dev/null
+++ b/src/Notification.hs
@@ -0,0 +1,49 @@
+{-# LANGUAGE OverloadedStrings #-}
+
+module Notification
+  ( today
+  , nextWeek
+  ) where
+
+import qualified Data.Text as T
+
+import SendMail (sendMail)
+import Time (formatCurrentLocale)
+
+import Model.Date (getCurrentDate, getNextWeek)
+import Model.Birthdate (Birthdate, filterBirthdayAt, filterBirthdayBetween)
+import Model.Mail (mailSubject, mailBody)
+import Model.Config
+
+today :: [Birthdate] -> Config -> IO ()
+today birthdates config = do
+  currentDate <- getCurrentDate
+  let birthdays = filterBirthdayAt currentDate birthdates
+  if not (null birthdays)
+    then
+      sendMail
+        (mailTo config)
+        (mailFrom config)
+        (mailSubject birthdays)
+        (mailBody currentDate birthdays)
+    else
+      return ()
+
+nextWeek :: [Birthdate] -> Config -> IO ()
+nextWeek birthdates config = do
+  currentDayOfWeek <- formatCurrentLocale "%A"
+  if T.toLower currentDayOfWeek == T.toLower (dayForNextWeekNotification config)
+    then do
+      (begin, end) <- getNextWeek
+      let birthdays = filterBirthdayBetween begin end birthdates
+      if not (null birthdays)
+        then
+          sendMail
+            (mailTo config)
+            (mailFrom config)
+            ""
+            ""
+        else
+          return ()
+    else
+      return ()