log-warper-0.4: examples/Playground.hs

-- | Testing module to play with logging.

module Main where

import           Control.Exception (bracket_)

import           Data.Monoid       ((<>))
import qualified Data.Text         as T (pack)

import           System.Wlog       (CanLog, buildAndSetupYamlLogging, dispatchEvents,
                                    logDebug, logError, logInfo, logNotice, logWarning,
                                    modifyLoggerName, prefixB, productionB,
                                    releaseAllHandlers, runPureLog, usingLoggerName)

testLogging :: (CanLog m) => m ()
testLogging = usingLoggerName "node" $ do
    logDebug   "skovoroda"
    logInfo    "patak"
    logNotice  "boroda"
    logWarning "haha"

    modifyLoggerName (<> "server") $ do
        logDebug  "provoda"
        logNotice "Ggurda"

    logError   "BARDAQ"

showPureLog :: IO ()
showPureLog = do
    (res, pureLog) <- runPureLog testLogging
    putStrLn "Pure log:"
    usingLoggerName "naked" $ do
        logWarning $ "Pure log for result = " <> (T.pack $ show res) <> ":"
        dispatchEvents pureLog

main :: IO ()
main = bracket_
           (buildAndSetupYamlLogging (productionB <> prefixB "logs") "logger-config-example.yaml")
           releaseAllHandlers
           (testLogging >> showPureLog)