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module Hsbot.Command
( dispatchMessage
, processInternalCommand
, registerCommand
, unregisterCommand
) where
import Control.Monad.State
import qualified Data.List as L
import qualified Data.Map as M
import Data.Maybe
import Config
import Hsbot.Plugin
import Hsbot.Types
import Hsbot.Utils
-- | Registers a plugin's command
registerCommand :: String -> String -> IrcBot ()
registerCommand cmd pluginName' = do
bot <- get
cmds <- gets botCommands
plugins <- gets botPlugins
case M.lookup pluginName' plugins of
Just _ -> let pluginNames = pluginName' : fromMaybe [] (M.lookup cmd cmds) -- TODO : remove/check for duplicates ?
newCmds = M.insert cmd pluginNames cmds
in put $ bot { botCommands = newCmds }
Nothing -> traceM $ inColor ("Couldn't register command \"" ++ cmd ++ "\" for plugin \""
++ pluginName' ++ "\" : plugin does not exists") [31]
-- | Unregisters a plugin's command
unregisterCommand :: String -> String -> IrcBot ()
unregisterCommand cmd pluginName' = do
bot <- get
cmds <- gets botCommands
let newCmds = M.adjust (L.delete pluginName') cmd cmds
put $ bot { botCommands = newCmds }
-- | Dispatches an input message
dispatchMessage :: BotMsg -> IrcBot ()
dispatchMessage (InputMsg inputMsg) = do
plugins <- gets botPlugins
cmds <- gets botCommands
if isPluginCommand --TODO : how to get rid of this if?
then
let key = tail $ head $ words getMsgContent
pluginNames = fromMaybe [] $ M.lookup key cmds
plugins' = fromMaybe [] $ mapM (flip M.lookup plugins) pluginNames
in mapM_ (sendRunCommand $ tail getMsgContent) plugins'
else
mapM_ (sendToPlugin (InputMsg inputMsg)) (M.elems plugins)
where
isPluginCommand :: Bool
isPluginCommand =
and [ command inputMsg == "PRIVMSG"
, (head getMsgContent) == (commandPrefix config) ]
sendRunCommand :: String -> Plugin -> IrcBot ()
sendRunCommand cmd plugin = do
sendToPlugin (InternalCmd $ IntCmd "RUN" "CORE" (pluginName plugin) cmd (Just inputMsg)) plugin
getMsgContent :: String
getMsgContent = unwords . tail $ parameters inputMsg
dispatchMessage _ = return ()
-- | Processes an internal command
processInternalCommand :: BotMsg -> IrcBot ()
processInternalCommand (InternalCmd intCmd) = do
plugins <- gets botPlugins
if intCmdTo intCmd == "CORE"
then processCoreCommand intCmd
else case M.lookup (intCmdTo intCmd) plugins of
Just plugin -> sendToPlugin (InternalCmd intCmd) plugin
Nothing -> errorM $ "Invalid destination in message : " ++ (show intCmd)
processInternalCommand _ = return ()
-- | Processes a core command
processCoreCommand :: IntCmd -> IrcBot ()
processCoreCommand intCmd = do
let command' = intCmdCmd intCmd
case command' of
"LOAD" -> traceM $ inColor "hsbot has been compiled in static mode." [31]
"UNLOAD" -> unloadPlugin $ intCmdMsg intCmd
"REGISTER" -> registerCommand (intCmdMsg intCmd) (intCmdFrom intCmd)
"UNREGISTER" -> unregisterCommand (intCmdMsg intCmd) (intCmdFrom intCmd)
_ -> traceM $ inColor ("Invalid command : " ++ (show intCmd)) [31]
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