module Jobs.Handler.TransactionLog
  ( dispatchJobTruncateTransactionLog
  , dispatchJobDeleteTransactionLogIPs
  ) where

import Import hiding (currentYear)
import Handler.Utils.DateTime

import Database.Persist.Sql (updateWhereCount, deleteWhereCount)

dispatchJobTruncateTransactionLog, dispatchJobDeleteTransactionLogIPs :: Handler ()
dispatchJobTruncateTransactionLog = do
  now <- liftIO getCurrentTime
  let localNow = utcToLocalTime now
      (localCurrentYear, _, _) = toGregorian $ localDay localNow
      localStartOfPreviousYear = LocalTime (fromGregorian (pred localCurrentYear) 1 1) midnight
      (currentYear, _, _) = toGregorian $ utctDay now
      startOfPreviousYear = UTCTime (fromGregorian (pred currentYear) 1 1) 0
      startOfPreviousYear' = case localTimeToUTC localStartOfPreviousYear of
        LTUUnique utc' _ -> utc'
        _other           -> startOfPreviousYear

  n <- runDB $ deleteWhereCount [ TransactionLogTime <. startOfPreviousYear' ]
  $logInfoS "TruncateTransactionLog" [st|Deleted #{n} transaction log entries|]
dispatchJobDeleteTransactionLogIPs = do
  now <- liftIO getCurrentTime
  retentionTime <- getsYesod $ view _appTransactionLogIPRetentionTime
  let cutoff = addUTCTime (- retentionTime) now

  n <- runDB $ updateWhereCount [ TransactionLogTime <. cutoff ] [ TransactionLogRemote =. Nothing ]
  $logInfoS "DeleteTransactionLogIPs" [st|Deleted #{n} IP entries from transaction log|]