module ServerCore where

import Network

import Control.Concurrent

import Control.Concurrent.STM

import Control.Concurrent.Chan

import Control.Monad

import qualified Data.IntMap as IntMap

import System.Log.Logger

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

import CoreTypes

import NetRoutines

import Utils

import HWProtoCore

import Actions

import OfficialServer.DBInteraction

timerLoop :: Int -> Chan CoreMessage -> IO()

timerLoop tick messagesChan = do

	threadDelay (30 * 10^6) -- 30 seconds

	writeChan messagesChan $ TimerAction tick

	timerLoop (tick + 1) messagesChan

firstAway (_, a, b, c) = (a, b, c)

reactCmd :: ServerInfo -> Int -> [String] -> Clients -> Rooms -> IO (ServerInfo, Clients, Rooms)

reactCmd serverInfo clID cmd clients rooms =

	liftM firstAway $ foldM processAction (clID, serverInfo, clients, rooms) $ handleCmd clID clients rooms cmd

mainLoop :: ServerInfo -> Clients -> Rooms -> IO ()

mainLoop serverInfo clients rooms = do

	r <- readChan $ coreChan serverInfo

	(newServerInfo, mClients, mRooms) <-

		case r of

			Accept ci -> do

				liftM firstAway $ processAction

					(clientUID ci, serverInfo, clients, rooms) (AddClient ci)

			ClientMessage (clID, cmd) -> do

				debugM "Clients" $ (show clID) ++ ": " ++ (show cmd)

				if clID `IntMap.member` clients then

					reactCmd serverInfo clID cmd clients rooms

					else

					do

					debugM "Clients" "Message from dead client"

					return (serverInfo, clients, rooms)

			ClientAccountInfo (clID, info) ->

				if clID `IntMap.member` clients then

					liftM firstAway $ processAction

						(clID, serverInfo, clients, rooms)

						(ProcessAccountInfo info)

					else

					do

					debugM "Clients" "Got info for dead client"

					return (serverInfo, clients, rooms)

			TimerAction tick ->

				liftM firstAway $

					foldM processAction (0, serverInfo, clients, rooms) $

						PingAll : if even tick then [StatsAction] else []

	{-			let hadRooms = (not $ null rooms) && (null mrooms)

					in unless ((not $ isDedicated serverInfo) && ((null clientsIn) || hadRooms)) $

						mainLoop serverInfo acceptChan messagesChan clientsIn mrooms -}

	mainLoop newServerInfo mClients mRooms

startServer :: ServerInfo -> Socket -> IO ()

startServer serverInfo serverSocket = do

	putStrLn $ "Listening on port " ++ show (listenPort serverInfo)

	forkIO $

		acceptLoop

			serverSocket

			(coreChan serverInfo)

			0

	return ()

	forkIO $ timerLoop 0 $ coreChan serverInfo

	startDBConnection $ serverInfo

	mainLoop serverInfo IntMap.empty (IntMap.singleton 0 newRoom)