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module MonthlyPaymentJob
( monthlyPaymentJobListener
) where
import Control.Monad.IO.Class (liftIO)
import Data.Time.Clock
import Data.Time.LocalTime
import Data.Time.Calendar
import Database.Persist (entityVal, insert)
import Job (jobListener)
import Model.Database
import Model.Payment (getMonthlyPayments)
import Model.JobKind
import Model.Frequency
monthlyPaymentJobListener :: IO ()
monthlyPaymentJobListener =
let lastExecutionTooOld = fmap not . belongToCurrentMonth
runJob () = monthlyPaymentJob
msDelay = 1000000 * 60 * 60
in jobListener MonthlyPaymentJob lastExecutionTooOld runJob msDelay
belongToCurrentMonth :: UTCTime -> IO Bool
belongToCurrentMonth time = do
month <- getLocalMonth time
actualMonth <- getCurrentTime >>= getLocalMonth
return (month == actualMonth)
getLocalMonth :: UTCTime -> IO Int
getLocalMonth time = do
timeZone <- getCurrentTimeZone
let (_, month, _) = toGregorian . localDay $ utcToLocalTime timeZone time
return month
monthlyPaymentJob :: Persist ()
monthlyPaymentJob = do
monthlyPayments <- map entityVal <$> getMonthlyPayments
now <- liftIO $ getCurrentTime
let punctualPayments = map (\p -> p { paymentFrequency = Punctual, paymentCreation = now }) monthlyPayments
sequence_ $ map insert punctualPayments
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