{-# OPTIONS_GHC -fno-warn-orphans #-}
{-# LANGUAGE ViewPatterns #-}

module Application
    ( makeApplication
    , getApplicationDev
    , makeFoundation
    ) where

import Import
import Yesod.Default.Config
import Yesod.Default.Main
import Yesod.Default.Handlers
import Network.Wai.Middleware.RequestLogger
    ( mkRequestLogger, outputFormat, OutputFormat (..), IPAddrSource (..), destination
    )
import qualified Network.Wai.Middleware.RequestLogger as RequestLogger
import Network.HTTP.Client.Conduit (newManager)
import System.Log.FastLogger (newStdoutLoggerSet, defaultBufSize)
import Network.Wai.Logger (clockDateCacher)
import Data.Default (def)
import Control.Monad (mzero)
import Yesod.Core.Types (loggerSet, Logger (Logger))

-- Import all relevant handler modules here.
-- Don't forget to add new modules to your cabal file!
import Handler.Home
import Handler.Journal
import Handler.Register

-- This line actually creates our YesodDispatch instance. It is the second half
-- of the call to mkYesodData which occurs in Foundation.hs. Please see the
-- comments there for more details.
mkYesodDispatch "App" resourcesApp

-- This function allocates resources (such as a database connection pool),
-- performs initialization and creates a WAI application. This is also the
-- place to put your migrate statements to have automatic database
-- migrations handled by Yesod.
makeApplication :: AppConfig DefaultEnv Extra -> IO (Application, LogFunc)
makeApplication conf = do
    foundation <- makeFoundation conf

    -- Initialize the logging middleware
    logWare <- mkRequestLogger def
        { outputFormat =
            if development
                then Detailed True
                else Apache FromSocket
        , destination = RequestLogger.Logger $ loggerSet $ appLogger foundation
        }

    -- Create the WAI application and apply middlewares
    app <- toWaiAppPlain foundation
    let logFunc = messageLoggerSource foundation (appLogger foundation)
    return (logWare $ defaultMiddlewaresNoLogging app, logFunc)

-- | Loads up any necessary settings, creates your foundation datatype, and
-- performs some initialization.
makeFoundation :: AppConfig DefaultEnv Extra -> IO App
makeFoundation conf = do
    manager <- newManager
    s <- staticSite
    ledgerconf <- withYamlEnvironment "config/hledger.yml" (appEnv conf) loadLedgerFileList
    loggerSet' <- newStdoutLoggerSet defaultBufSize
    (getter, _) <- clockDateCacher

    let logger = Yesod.Core.Types.Logger loggerSet' getter
        foundation = App conf s manager ledgerconf logger

    return $ foundation
    where
        loadLedgerFileList (Object o) = o .: "ledgers"
        loadLedgerFileList _ = mzero

-- for yesod devel
getApplicationDev :: IO (Int, Application)
getApplicationDev =
    defaultDevelApp loader (fmap fst . makeApplication)
  where
    loader = Yesod.Default.Config.loadConfig (configSettings Development)
        { csParseExtra = parseExtra
        }