module HWProtoInRoomState where

import qualified Data.Foldable as Foldable

import qualified Data.IntMap as IntMap

import qualified Data.Map as Map

import Data.Sequence(Seq, (|>), (><), fromList, empty)

import Data.List

import Maybe

import qualified Codec.Binary.UTF8.String as UTF8

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

import CoreTypes

import Actions

import Utils

handleCmd_inRoom :: CmdHandler

handleCmd_inRoom clID clients _ ["CHAT", msg] =

	[AnswerOthersInRoom ["CHAT", clientNick, msg]]

	where

		clientNick = nick $ clients IntMap.! clID

handleCmd_inRoom clID clients _ ["TEAM_CHAT", msg] =

	[AnswerOthersInRoom ["TEAM_CHAT", clientNick, msg]]

	where

		clientNick = nick $ clients IntMap.! clID

handleCmd_inRoom clID clients rooms ["PART"] =

	[RoomRemoveThisClient "part"]

	where

		client = clients IntMap.! clID

handleCmd_inRoom clID clients rooms ("CFG" : paramName : paramStrs)

	| null paramStrs = [ProtocolError "Empty config entry"]

	| isMaster client =

		[ModifyRoom (\r -> r{params = Map.insert paramName paramStrs (params r)}),

		AnswerOthersInRoom ("CFG" : paramName : paramStrs)]

	| otherwise = [ProtocolError "Not room master"]

	where

		client = clients IntMap.! clID

handleCmd_inRoom clID clients rooms ("ADD_TEAM" : name : color : grave : fort : voicepack : difStr : hhsInfo)

	| length hhsInfo /= 16 = []

	| length (teams room) == 6 = [Warning "too many teams"]

	| canAddNumber <= 0 = [Warning "too many hedgehogs"]

	| isJust findTeam = [Warning "There's already a team with same name in the list"]

	| gameinprogress room = [Warning "round in progress"]

	| isRestrictedTeams room = [Warning "restricted"]

	| otherwise =

		[ModifyRoom (\r -> r{teams = teams r ++ [newTeam]}),

		ModifyClient (\c -> c{teamsInGame = teamsInGame c + 1, clientClan = color}),

		AnswerThisClient ["TEAM_ACCEPTED", name],

		AnswerOthersInRoom $ teamToNet newTeam,

		AnswerOthersInRoom ["TEAM_COLOR", name, color]

		]

	where

		client = clients IntMap.! clID

		room = rooms IntMap.! (roomID client)

		canAddNumber = 48 - (sum . map hhnum $ teams room)

		findTeam = find (\t -> name == teamname t) $ teams room

		newTeam = (TeamInfo clID (nick client) name color grave fort voicepack difficulty newTeamHHNum (hhsList hhsInfo))

		difficulty = fromMaybe 0 (maybeRead difStr :: Maybe Int)

		hhsList [] = []

		hhsList (n:h:hhs) = HedgehogInfo n h : hhsList hhs

		newTeamHHNum = min 4 canAddNumber

handleCmd_inRoom clID clients rooms ["REMOVE_TEAM", teamName]

	| noSuchTeam = [Warning "REMOVE_TEAM: no such team"]

	| nick client /= teamowner team = [ProtocolError "Not team owner!"]

	| otherwise =

			[RemoveTeam teamName,

			ModifyClient (\c -> c{teamsInGame = teamsInGame c - 1})

			]

	where

		client = clients IntMap.! clID

		room = rooms IntMap.! (roomID client)

		noSuchTeam = isNothing findTeam

		team = fromJust findTeam

		findTeam = find (\t -> teamName == teamname t) $ teams room

handleCmd_inRoom clID clients rooms ["HH_NUM", teamName, numberStr]

	| not $ isMaster client = [ProtocolError "Not room master"]

	| hhNumber < 1 || hhNumber > 8 || noSuchTeam || hhNumber > (canAddNumber + (hhnum team)) = []

	| otherwise =

		[ModifyRoom $ modifyTeam team{hhnum = hhNumber},

		AnswerOthersInRoom ["HH_NUM", teamName, show hhNumber]]

	where

		client = clients IntMap.! clID

		room = rooms IntMap.! (roomID client)

		hhNumber = fromMaybe 0 (maybeRead numberStr :: Maybe Int)

		noSuchTeam = isNothing findTeam

		team = fromJust findTeam

		findTeam = find (\t -> teamName == teamname t) $ teams room

		canAddNumber = 48 - (sum . map hhnum $ teams room)

handleCmd_inRoom clID clients rooms ["TEAM_COLOR", teamName, newColor]

	| not $ isMaster client = [ProtocolError "Not room master"]

	| noSuchTeam = []

	| otherwise = [ModifyRoom $ modifyTeam team{teamcolor = newColor},

			AnswerOthersInRoom ["TEAM_COLOR", teamName, newColor],

			ModifyClient2 (teamownerId team) (\c -> c{clientClan = newColor})]

	where

		noSuchTeam = isNothing findTeam

		team = fromJust findTeam

		findTeam = find (\t -> teamName == teamname t) $ teams room

		client = clients IntMap.! clID

		room = rooms IntMap.! (roomID client)

handleCmd_inRoom clID clients rooms ["TOGGLE_READY"] =

	[ModifyClient (\c -> c{isReady = not $ isReady client}),

	ModifyRoom (\r -> r{readyPlayers = readyPlayers r + (if isReady client then -1 else 1)}),

	AnswerThisRoom [if isReady client then "NOT_READY" else "READY", nick client]]

	where

		client = clients IntMap.! clID

handleCmd_inRoom clID clients rooms ["START_GAME"] =

	if isMaster client && (playersIn room == readyPlayers room) && (not . gameinprogress) room then

		if enoughClans then

			[ModifyRoom

					(\r -> r{

						gameinprogress = True,

						roundMsgs = empty,

						leftTeams = [],

						teamsAtStart = teams r}

					),

			AnswerThisRoom ["RUN_GAME"]]

		else

			[Warning "Less than two clans!"]

	else

		[]

	where

		client = clients IntMap.! clID

		room = rooms IntMap.! (roomID client)

		enoughClans = not $ null $ drop 1 $ group $ map teamcolor $ teams room

handleCmd_inRoom clID clients rooms ["EM", msg] =

	if (teamsInGame client > 0) && isLegal then

		(AnswerOthersInRoom ["EM", msg]) : [ModifyRoom (\r -> r{roundMsgs = roundMsgs r |> msg}) | not isKeepAlive]

	else

		[]

	where

		client = clients IntMap.! clID

		(isLegal, isKeepAlive) = checkNetCmd msg

handleCmd_inRoom clID clients rooms ["ROUNDFINISHED"] =

	if isMaster client then

		[ModifyRoom

				(\r -> r{

					gameinprogress = False,

					readyPlayers = 0,

					roundMsgs = empty,

					leftTeams = [],

					teamsAtStart = []}

				),

		UnreadyRoomClients

		] ++ answerRemovedTeams

	else

		[]

	where

		client = clients IntMap.! clID

		room = rooms IntMap.! (roomID client)

		answerRemovedTeams = map (\t -> AnswerThisRoom ["REMOVE_TEAM", t]) $ leftTeams room

handleCmd_inRoom clID clients _ ["TOGGLE_RESTRICT_JOINS"]

	| isMaster client = [ModifyRoom (\r -> r{isRestrictedJoins = not $ isRestrictedJoins r})]

	| otherwise = [ProtocolError "Not room master"]

	where

		client = clients IntMap.! clID

handleCmd_inRoom clID clients _ ["TOGGLE_RESTRICT_TEAMS"]

	| isMaster client = [ModifyRoom (\r -> r{isRestrictedTeams = not $ isRestrictedTeams r})]

	| otherwise = [ProtocolError "Not room master"]

	where

		client = clients IntMap.! clID

handleCmd_inRoom clID clients rooms ["KICK", kickNick] =

	[KickRoomClient kickID | isMaster client && not noSuchClient && (kickID /= clID) && (roomID client == roomID kickClient)]

	where

		client = clients IntMap.! clID

		maybeClient = Foldable.find (\cl -> kickNick == nick cl) clients

		noSuchClient = isNothing maybeClient

		kickClient = fromJust maybeClient

		kickID = clientUID kickClient

handleCmd_inRoom clID clients _ ["TEAMCHAT", msg] =

	if (teamsInGame client > 0) then

		[AnswerSameClan ["EM", engineMsg]]

	else

		[]

	where

		client = clients IntMap.! clID

		engineMsg = toEngineMsg $ 'b' : (nick client ++ "(team): " ++ decodedMsg ++ "\x20\x20")

		decodedMsg = UTF8.decodeString msg

handleCmd_inRoom clID _ _ _ = [ProtocolError "Incorrect command (state: in room)"]