{-# LANGUAGE CPP, PatternSignatures #-}

module NetRoutines where

import Network

import Network.Socket

import System.IO

import Control.Concurrent

import Control.Concurrent.Chan

import Control.Concurrent.STM

#if defined(NEW_EXCEPTIONS)

import qualified Control.OldException as Exception

#else

import qualified Control.Exception as Exception

#endif

import Data.Time

-----------------------------

import CoreTypes

import ClientIO

import Utils

acceptLoop :: Socket -> Chan CoreMessage -> Int -> IO ()

acceptLoop servSock coreChan clientCounter = do

	Exception.handle

		(\(_ :: Exception.Exception) -> putStrLn "exception on connect") $

		do

		(socket, sockAddr) <- Network.Socket.accept servSock

		cHandle <- socketToHandle socket ReadWriteMode

		hSetBuffering cHandle LineBuffering

		clientHost <- sockAddr2String sockAddr

		currentTime <- getCurrentTime

		sendChan <- newChan

		let newClient =

				(ClientInfo

					nextID

					sendChan

					cHandle

					clientHost

					currentTime

					""

					""

					False

					0

					0

					0

					False

					False

					False

					undefined

					)

		writeChan coreChan $ Accept newClient

		forkIO $ clientRecvLoop cHandle coreChan nextID

		forkIO $ clientSendLoop cHandle coreChan sendChan nextID

		return ()

	acceptLoop servSock coreChan nextID

	where

		nextID = clientCounter + 1