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module DPut where
import Control.Monad.IO.Class
import qualified Data.Map.Strict as Map
import Data.Maybe
import Data.IORef
import System.IO.Unsafe (unsafePerformIO)
import System.Log.Logger
import qualified Data.ByteString.Char8 as B
import qualified Data.Text as T
import qualified Data.Text.Encoding as T
import Debug.Trace
-- | Debug Tags, add more as needed, but ensure XAnnounce is always first, XMisc last
data DebugTag
= XAnnounce
| XBitTorrent
| XDHT
| XLan
| XMan
| XNetCrypto
| XNetCryptoOut
| XOnion
| XRoutes
| XPing
| XRefresh
| XJabber
| XMisc
| XNodeinfoSearch
| XUnused -- Never commit code that uses XUnused.
deriving (Eq, Ord, Show, Read, Enum, Bounded)
appName :: String
appName = "toxmpp"
(<.>) :: String -> String -> String
a <.> b = a ++ "." ++ b
dput :: MonadIO m => DebugTag -> String -> m ()
dput tag msg = liftIO $ debugM (appName <.> show tag) msg
dputB :: MonadIO m => DebugTag -> B.ByteString -> m ()
dputB tag msg = liftIO $ debugM (appName <.> show tag) (T.unpack . T.decodeUtf8 $ msg)
{-# NOINLINE verbosityMap #-}
verbosityMap :: IORef (Map.Map DebugTag Bool)
verbosityMap = unsafePerformIO $ newIORef (Map.empty)
-- | Trace version of 'dput' works in arbitrary monad, using unsafePerformIO.
tput :: Applicative m => DebugTag -> String -> m ()
tput tag msg =
let mp = unsafePerformIO $ readIORef verbosityMap
in if fromMaybe True (Map.lookup tag mp)
then trace msg (pure ())
else pure ()
-- | like 'trace' but parameterized with 'DebugTag'
dtrace :: DebugTag -> String -> a -> a
dtrace tag msg result = let mp = unsafePerformIO $ readIORef verbosityMap
in if fromMaybe True (Map.lookup tag mp)
then trace msg result
else result
setTagLevel :: Priority -> DebugTag -> IO ()
setTagLevel level tag = do
updateGlobalLogger (appName <.> show tag) (setLevel level)
modifyIORef verbosityMap (Map.insert tag (level <= DEBUG))
setQuiet :: DebugTag -> IO ()
setQuiet = setTagLevel WARNING
setVerbose :: DebugTag -> IO ()
setVerbose = setTagLevel DEBUG
getVerbose :: DebugTag -> IO Bool
getVerbose tag = do
logger <- getLogger (appName <.> show tag)
case getLevel logger of
Just p | p <= DEBUG -> return True
_ -> return False
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