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{-# LANGUAGE OverloadedStrings #-}
module Notification
( notifyTodayAndNextWeek
) where
import qualified Data.Text as T
import SendMail (sendMail)
import Time (formatCurrentLocale)
import Model.Date (getCurrentDate, getNextWeek, SuccessiveDates)
import Model.Birthdate (Birthdate, filterBirthdayAt, filterBirthdayInside)
import Model.Mail (mailSubject, mailBody)
import Model.Config
notifyTodayAndNextWeek :: [Birthdate] -> Config -> IO ()
notifyTodayAndNextWeek birthdates config = do
currentDate <- getCurrentDate
let birthdaysToday = filterBirthdayAt currentDate birthdates
nextWeek <- getNextWeek
birthdaysNextWeek <- filterBirthdaysNextWeek config nextWeek birthdates
if length birthdaysToday > 0 || length birthdaysNextWeek > 0
then
sendMail
(mailTo config)
(mailFrom config)
(mailSubject birthdaysToday birthdaysNextWeek)
(mailBody currentDate nextWeek birthdaysToday birthdaysNextWeek)
else
return ()
filterBirthdaysNextWeek :: Config -> SuccessiveDates -> [Birthdate] -> IO [Birthdate]
filterBirthdaysNextWeek config nextWeek birthdates =
(\currentDayOfWeek ->
if T.toLower currentDayOfWeek == T.toLower (dayForNextWeekNotification config)
then filterBirthdayInside nextWeek birthdates
else []
) <$> formatCurrentLocale "%A"
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