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module MonthlyPaymentJob
( monthlyPaymentJobListener
) where
import Data.Time.Clock
import Data.Time.LocalTime
import Data.Time.Calendar
import Control.Concurrent (threadDelay)
import Database.Persist (entityVal, insert)
import Model.Database
import Model.Payment (getMonthlyPayments)
import Model.JobKind
import Model.Job
import Model.Frequency
monthlyPaymentJobListener :: IO ()
monthlyPaymentJobListener = do
mbLastExecution <- runDb $ getLastExecution MonthlyPaymentJob
runThisMonth <- case mbLastExecution of
Just lastExecution -> belongToCurrentMonth lastExecution
Nothing -> return False
if not runThisMonth
then runDb (monthlyJob >> actualizeLastExecution MonthlyPaymentJob)
else return ()
sleepOneDay
monthlyPaymentJobListener
monthlyJob :: Persist ()
monthlyJob = do
monthlyPayments <- map entityVal <$> getMonthlyPayments
let punctualPayments = map (\p -> p { paymentFrequency = Punctual }) monthlyPayments
sequence_ $ map insert punctualPayments
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
sleepOneDay :: IO ()
sleepOneDay = threadDelay (1000000 * 60 * 60 * 24)
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