content: {-# OPTIONS_GHC -fno-warn-orphans #-}
  module Application
      ( getApplicationDev
      , appMain
      , develMain
      , makeFoundation
      -- * for DevelMain
      , getApplicationRepl
      , shutdownApp
      -- * for GHCI
      , handler
      , db
      ) where
  
  import Control.Monad.Logger                 (liftLoc, runLoggingT)
  import Database.Persist.Postgresql          (createPostgresqlPool, pgConnStr,
                                               pgPoolSize, runSqlPool)
  import Import
  import Language.Haskell.TH.Syntax           (qLocation)
  import Network.Wai (Middleware)
  import Network.Wai.Handler.Warp             (Settings, defaultSettings,
                                               defaultShouldDisplayException,
                                               runSettings, setHost,
                                               setOnException, setPort, getPort)
  import Network.Wai.Middleware.RequestLogger (Destination (Logger),
                                               IPAddrSource (..),
                                               OutputFormat (..), destination,
                                               mkRequestLogger, outputFormat)
  import System.Log.FastLogger                (defaultBufSize, newStdoutLoggerSet,
                                               toLogStr)
  
  -- Used only in Application.hs
  import qualified Data.Map as Map
  
  import Control.Monad.Reader        (ReaderT (..))
  import Database.Persist.Sql        (runMigration)
  import Network.HTTP.Client.Conduit (newManager)
  import Data.Default                (def)
  
  -- Import all relevant handler modules here.
  -- Don't forget to add new modules to your cabal file!
  import Handler.Common
  import Handler.Home
  import Handler.Help
  import Handler.Thread
  import Handler.Board
  import Handler.Catalog
  import Handler.Bookmarks
  import Handler.Edit
  import Handler.Feed
  import Handler.Delete
  import Handler.EventSource
  import Handler.Admin
  import Handler.Admin.Ban
  import Handler.Admin.Hellban 
  import Handler.Admin.Board
  import Handler.Admin.Config
  import Handler.Admin.Group
  import Handler.Admin.User
  import Handler.Admin.Modlog
  import Handler.Admin.Search
  import Handler.Admin.Delete
  import Handler.Admin.Wordfilter
  import Handler.Admin.Reports
  import Handler.Ajax
  import Handler.Settings
  import Handler.Captcha
  import Handler.RSS
  import Handler.Search
  import Handler.API
  
  -- 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 return a foundation datatype value. This is also
  -- the place to put your migrate statements to have automatic database
  -- migrations handled by Yesod.
  makeFoundation :: AppSettings -> IO App
  makeFoundation appSettings = do
      -- Some basic initializations: HTTP connection manager, logger, and static
      -- subsite.
      appHttpManager <- newManager
      appLogger <- newStdoutLoggerSet defaultBufSize >>= makeYesodLogger
      appStatic <-
          (if appMutableStatic appSettings then staticDevel else static)
          (appStaticDir appSettings)
      appSSEClients <- newTVarIO Map.empty
      appSSEChan    <- atomically newBroadcastTChan
  
      -- We need a log function to create a connection pool. We need a connection
      -- pool to create our foundation. And we need our foundation to get a
      -- logging function. To get out of this loop, we initially create a
      -- temporary foundation without a real connection pool, get a log function
      -- from there, and then create the real foundation.
      let mkFoundation appConnPool = App {..}
          -- The App {..} syntax is an example of record wild cards. For more
          -- information, see:
          -- https://ocharles.org.uk/blog/posts/2014-12-04-record-wildcards.html
          tempFoundation = mkFoundation $ error "connPool forced in tempFoundation"
          logFunc = messageLoggerSource tempFoundation appLogger
  
      -- Create the database connection pool
      pool <- flip runLoggingT logFunc $ createPostgresqlPool
          (pgConnStr  $ appDatabaseConf appSettings)
          (pgPoolSize $ appDatabaseConf appSettings)
  
      -- Perform database migration using our application's logging settings.
      runLoggingT (runSqlPool (runMigration migrateAll) pool) logFunc
  
      -- Return the foundation
      return $ mkFoundation pool
  
  makeApplication :: App -> IO Application
  makeApplication foundation = do
      logWare <- makeLogWare foundation
      -- Create the WAI application and apply middlewares
      appPlain <- toWaiAppPlain foundation
      return $ logWare $ defaultMiddlewaresNoLogging appPlain
  
  
  makeLogWare :: App -> IO Middleware
  makeLogWare foundation =
      mkRequestLogger def
          { outputFormat =
              if appDetailedRequestLogging $ appSettings foundation
                  then Detailed True
                  else Apache
                          (if appIpFromHeader $ appSettings foundation
                              then FromFallback
                              else FromSocket)
          , destination = Logger $ loggerSet $ appLogger foundation
          }
  
  
  -- | Warp settings for the given foundation value.
  warpSettings :: App -> Settings
  warpSettings foundation =
        setPort (appPort $ appSettings foundation)
      $ setHost (appHost $ appSettings foundation)
      $ setOnException (\_req e ->
          when (defaultShouldDisplayException e) $ messageLoggerSource
              foundation
              (appLogger foundation)
              $(qLocation >>= liftLoc)
              "yesod"
              LevelError
              (toLogStr $ "Exception from Warp: " ++ show e))
        defaultSettings
  
  -- | For yesod devel, return the Warp settings and WAI Application.
  getApplicationDev :: IO (Settings, Application)
  getApplicationDev = do
      settings <- getAppSettings
      foundation <- makeFoundation settings
      wsettings <- getDevSettings $ warpSettings foundation
      app <- makeApplication foundation
      return (wsettings, app)
  
  getAppSettings :: IO AppSettings
  getAppSettings = loadYamlSettings [configSettingsYml] [] useEnv
  
  -- | main function for use by yesod devel
  develMain :: IO ()
  develMain = develMainHelper getApplicationDev
  
  -- | The @main@ function for an executable running this site.
  appMain :: IO ()
  appMain = do
      -- Get the settings from all relevant sources
      settings <- loadYamlSettingsArgs
          -- fall back to compile-time values, set to [] to require values at runtime
          [configSettingsYmlValue]
  
          -- allow environment variables to override
          useEnv
  
      -- Generate the foundation from the settings
      foundation <- makeFoundation settings
  
      -- Generate a WAI Application from the foundation
      app <- makeApplication foundation
  
      -- Run the application with Warp
      runSettings (warpSettings foundation) app
  
  
  --------------------------------------------------------------
  -- Functions for DevelMain.hs (a way to run the app from GHCi)
  --------------------------------------------------------------
  getApplicationRepl :: IO (Int, App, Application)
  getApplicationRepl = do
      settings <- getAppSettings
      foundation <- makeFoundation settings
      wsettings <- getDevSettings $ warpSettings foundation
      app1 <- makeApplication foundation
      return (getPort wsettings, foundation, app1)
  
  shutdownApp :: App -> IO ()
  shutdownApp _ = return ()
  
  
  ---------------------------------------------
  -- Functions for use in development with GHCi
  ---------------------------------------------
  
  -- | Run a handler
  handler :: Handler a -> IO a
  handler h = getAppSettings >>= makeFoundation >>= flip unsafeHandler h
  
  -- | Run DB queries
  db :: ReaderT SqlBackend (HandlerFor App) a -> IO a
  db = handler . runDB
  