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|
{-# LANGUAGE OverloadedStrings #-}
module Main
( main
) where
import System.IO (stderr)
import qualified Data.Text as T
import qualified Data.Text.IO as T
import Date (getCurrentDate)
import Birthdate (readBirthdates, filterBirthday)
import Mail (mailSubject, mailBody)
import SendMail (sendMail)
import Config
birthdatePath :: FilePath
birthdatePath = "birthdates.csv"
configPath :: FilePath
configPath = "config.txt"
main :: IO ()
main = do
eitherBirthdates <- readBirthdates birthdatePath
eitherConfig <- getConfig configPath
case (eitherBirthdates, eitherConfig) of
(Left error, _) ->
T.hPutStr stderr $
T.concat
[ "Error while parsing file "
, T.pack birthdatePath
, ":\n"
, error
]
(_, Left error) ->
T.hPutStr stderr $
T.concat
[ "Error while parsing config file "
, T.pack birthdatePath
, ":\n"
, error
]
(Right birthdates, Right config) -> do
currentDate <- getCurrentDate
let birthdays = filterBirthday currentDate birthdates
sendMail
(mailTo config)
(mailFrom config)
(mailSubject birthdays)
(mailBody currentDate birthdays)
|
