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module Actions where
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import Control.Concurrent.STM
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import Control.Concurrent.Chan
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import Data.IntMap
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import qualified Data.IntSet as IntSet
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import Monad
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-----------------------------
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import CoreTypes
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data Action =
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AnswerThisClient [String]
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| AnswerAll [String]
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| AnswerAllOthers [String]
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| AnswerThisRoom [String]
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| AnswerOthersInRoom [String]
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| AnswerLobby [String]
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| RoomAddThisClient Int -- roomID
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| RoomRemoveThisClient
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| RemoveRoom
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| UnreadyRoomClients
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| ProtocolError String
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| Warning String
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| ByeClient String
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| ModifyClient (ClientInfo -> ClientInfo)
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| ModifyRoom (RoomInfo -> RoomInfo)
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| AddRoom String String
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| Dump
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type CmdHandler = Int -> Clients -> Rooms -> [String] -> [Action]
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processAction :: (Int, ServerInfo, Clients, Rooms) -> Action -> IO (Int, ServerInfo, Clients, Rooms)
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processAction (clID, serverInfo, clients, rooms) (AnswerThisClient msg) = do
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writeChan (sendChan $ clients ! clID) msg
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return (clID, serverInfo, clients, rooms)
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processAction (clID, serverInfo, clients, rooms) (AnswerAll msg) = do
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mapM_ (\id -> writeChan (sendChan $ clients ! id) msg) (keys clients)
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return (clID, serverInfo, clients, rooms)
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processAction (clID, serverInfo, clients, rooms) (AnswerAllOthers msg) = do
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mapM_ (\id -> writeChan (sendChan $ clients ! id) msg) $ Prelude.filter (/= clID) (keys clients)
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return (clID, serverInfo, clients, rooms)
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processAction (clID, serverInfo, clients, rooms) (AnswerThisRoom msg) = do
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mapM_ (\id -> writeChan (sendChan $ clients ! id) msg) roomClients
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return (clID, serverInfo, clients, rooms)
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where
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roomClients = IntSet.elems $ playersIDs room
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room = rooms ! rID
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rID = roomID client
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client = clients ! clID
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processAction (clID, serverInfo, clients, rooms) (AnswerOthersInRoom msg) = do
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mapM_ (\id -> writeChan (sendChan $ clients ! id) msg) $ Prelude.filter (/= clID) roomClients
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return (clID, serverInfo, clients, rooms)
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where
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roomClients = IntSet.elems $ playersIDs room
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room = rooms ! rID
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rID = roomID client
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client = clients ! clID
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processAction (clID, serverInfo, clients, rooms) (AnswerLobby msg) = do
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mapM_ (\id -> writeChan (sendChan $ clients ! id) msg) roomClients
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return (clID, serverInfo, clients, rooms)
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where
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roomClients = IntSet.elems $ playersIDs room
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room = rooms ! 0
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processAction (clID, serverInfo, clients, rooms) (ProtocolError msg) = do
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writeChan (sendChan $ clients ! clID) ["ERROR", msg]
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return (clID, serverInfo, clients, rooms)
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processAction (clID, serverInfo, clients, rooms) (Warning msg) = do
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writeChan (sendChan $ clients ! clID) ["WARNING", msg]
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return (clID, serverInfo, clients, rooms)
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processAction (clID, serverInfo, clients, rooms) (ByeClient msg) = do
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mapM_ (processAction (clID, serverInfo, clients, rooms)) $ answerOthersQuit ++ answerInformRoom
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writeChan (sendChan $ clients ! clID) ["BYE"]
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return (
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0,
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serverInfo,
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delete clID clients,
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adjust (\r -> r{playersIDs = IntSet.delete clID (playersIDs r), playersIn = (playersIn r) - 1}) rID rooms
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)
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where
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client = clients ! clID
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rID = roomID client
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clientNick = nick client
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answerInformRoom =
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if roomID client /= 0 then
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if not $ Prelude.null msg then
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[AnswerThisRoom ["LEFT", clientNick, msg]]
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else
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[AnswerThisRoom ["LEFT", clientNick]]
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else
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[]
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answerOthersQuit =
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if not $ Prelude.null clientNick then
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if not $ Prelude.null msg then
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[AnswerAll ["LOBBY:LEFT", clientNick, msg]]
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else
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[AnswerAll ["LOBBY:LEFT", clientNick]]
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else
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[]
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processAction (clID, serverInfo, clients, rooms) (ModifyClient func) = do
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return (clID, serverInfo, adjust func clID clients, rooms)
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processAction (clID, serverInfo, clients, rooms) (ModifyRoom func) = do
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return (clID, serverInfo, clients, adjust func rID rooms)
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where
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rID = roomID $ clients ! clID
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processAction (clID, serverInfo, clients, rooms) (RoomAddThisClient rID) = do
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processAction (
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clID,
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serverInfo,
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adjust (\cl -> cl{roomID = rID}) clID clients,
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adjust (\r -> r{playersIDs = IntSet.insert clID (playersIDs r), playersIn = (playersIn r) + 1}) rID $
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adjust (\r -> r{playersIDs = IntSet.delete clID (playersIDs r)}) 0 rooms
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) joinMsg
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where
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client = clients ! clID
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joinMsg = if rID == 0 then
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AnswerAllOthers ["LOBBY:JOINED", nick client]
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else
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AnswerThisRoom ["JOINED", nick client]
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processAction (clID, serverInfo, clients, rooms) (RoomRemoveThisClient) = do
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when (rID /= 0) $ (processAction (clID, serverInfo, clients, rooms) $ AnswerOthersInRoom ["LEFT", nick client, "part"]) >> return ()
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return (
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clID,
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serverInfo,
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adjust (\cl -> cl{roomID = 0}) clID clients,
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adjust (\r -> r{playersIDs = IntSet.delete clID (playersIDs r), playersIn = (playersIn r) - 1}) rID $
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adjust (\r -> r{playersIDs = IntSet.insert clID (playersIDs r)}) 0 rooms
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)
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where
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rID = roomID client
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client = clients ! clID
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processAction (clID, serverInfo, clients, rooms) (AddRoom roomName roomPassword) = do
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let newServerInfo = serverInfo {nextRoomID = newID}
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let room = newRoom{
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roomUID = newID,
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name = roomName,
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password = roomPassword,
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roomProto = (clientProto client)
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}
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processAction (clID, serverInfo, clients, rooms) $ AnswerLobby ["ROOM", "ADD", roomName]
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processAction (
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clID,
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newServerInfo,
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adjust (\cl -> cl{isMaster = True}) clID clients,
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insert newID room rooms
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) $ RoomAddThisClient newID
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where
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newID = (nextRoomID serverInfo) - 1
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client = clients ! clID
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processAction (clID, serverInfo, clients, rooms) (RemoveRoom) = do
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processAction (clID, serverInfo, clients, rooms) $ AnswerLobby ["ROOM", "DEL", name room]
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processAction (clID, serverInfo, clients, rooms) $ AnswerOthersInRoom ["ROOMABANDONED", name room]
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return (clID,
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serverInfo,
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Data.IntMap.map (\cl -> if roomID cl == rID then cl{roomID = 0, isMaster = False} else cl) clients,
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delete rID $ adjust (\r -> r{playersIDs = IntSet.union (playersIDs room) (playersIDs r)}) 0 rooms
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)
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where
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room = rooms ! rID
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rID = roomID client
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client = clients ! clID
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processAction (clID, serverInfo, clients, rooms) (UnreadyRoomClients) = do
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processAction (clID, serverInfo, clients, rooms) $ AnswerThisRoom ("NOT_READY" : roomPlayers)
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return (clID,
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serverInfo,
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Data.IntMap.map (\cl -> if roomID cl == rID then cl{isReady = False} else cl) clients,
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rooms)
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where
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room = rooms ! rID
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rID = roomID client
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client = clients ! clID
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roomPlayers = Prelude.map (nick . (clients !)) roomPlayersIDs
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roomPlayersIDs = IntSet.elems $ playersIDs room
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processAction (clID, serverInfo, clients, rooms) (Dump) = do
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writeChan (sendChan $ clients ! clID) ["DUMP", show serverInfo, showTree clients, showTree rooms]
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return (clID, serverInfo, clients, rooms)
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