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Diffstat (limited to '')
-rw-r--r-- | lib/Server/Util.hs | 49 |
1 files changed, 44 insertions, 5 deletions
diff --git a/lib/Server/Util.hs b/lib/Server/Util.hs index 5ffb829..0106428 100644 --- a/lib/Server/Util.hs +++ b/lib/Server/Util.hs @@ -1,28 +1,67 @@ +{-# LANGUAGE BlockArguments #-} +{-# LANGUAGE RecordWildCards #-} -- | mostly the monad the service runs in -module Server.Util (Service, ServiceM, runService, sendErrorMsg, secondsNow, utcToSeconds) where +module Server.Util (Service, ServiceM, runService, sendErrorMsg, secondsNow, utcToSeconds, runLogging) where +import Config (LoggingConfig (..)) +import Control.Exception (handle, try) +import Control.Monad.Extra (void, whenJust) import Control.Monad.IO.Class (MonadIO (liftIO)) -import Control.Monad.Logger (LoggingT, runStderrLoggingT) +import Control.Monad.Logger (Loc, LogLevel (..), LogSource, LogStr, + LoggingT (..), defaultOutput, + fromLogStr, runStderrLoggingT) +import Control.Monad.Reader (ReaderT (..)) import qualified Data.Aeson as A import Data.ByteString (ByteString) +import qualified Data.ByteString as C8 import Data.Text (Text) +import qualified Data.Text as T +import Data.Text.Encoding (decodeUtf8Lenient) import Data.Time (Day, UTCTime (..), diffUTCTime, getCurrentTime, nominalDiffTimeToSeconds) +import Fmt ((+|), (|+)) +import GHC.IO.Exception (IOException (IOError)) import GTFS (Seconds (..)) import Prometheus (MonadMonitor (doIO)) import Servant (Handler, ServerError, ServerT, err404, errBody, errHeaders, throwError) +import System.IO (stderr) +import System.Process.Extra (callProcess) -type ServiceM = LoggingT Handler +type ServiceM = LoggingT (ReaderT LoggingConfig Handler) type Service api = ServerT api ServiceM -runService :: ServiceM a -> Handler a -runService = runStderrLoggingT +runService :: LoggingConfig -> ServiceM a -> Handler a +runService conf m = runReaderT (runLogging conf m) conf instance MonadMonitor ServiceM where doIO = liftIO +runLogging :: MonadIO m => LoggingConfig -> LoggingT m a -> m a +runLogging LoggingConfig{..} logging = runLoggingT logging printLogMsg + where printLogMsg loc source level msg = do + -- this is what runStderrLoggingT does + defaultOutput stderr loc source level msg + + whenJust loggingConfigNtfyToken \token -> handle ntfyFailed do + callProcess "ntfy" + [ "send" + , "--token=" <> T.unpack token + , "--title="+|loggingConfigHostname|+"/"+|"tracktrain" + , "--priority="+|show (ntfyPriority level)|+"" + , T.unpack loggingConfigNtfyTopic + , T.unpack (decodeUtf8Lenient (fromLogStr msg)) ] + + ntfyFailed (e :: IOError) = + putStrLn ("calling ntfy failed:"+|show e|+".") + ntfyPriority level = case level of + LevelDebug -> 2 + LevelInfo -> 3 + LevelWarn -> 4 + LevelError -> 5 + LevelOther _ -> 0 + sendErrorMsg :: Text -> ServiceM a sendErrorMsg msg = throwError err404 |