Added command registering and dispatching for plugins.

Hsbot/Command.hs

@@ -0,0 +1,52 @@
+module Hsbot.Command
+    ( dispatchCommand
+    , registerCommand
+    ) where
+
+import Control.Monad.State
+import qualified Data.Map as M
+import Data.Maybe
+
+import Config
+import Hsbot.Plugin
+import Hsbot.Types
+import Hsbot.Utils
+
+-- TODO :  unregister command
+
+dispatchCommand :: BotMsg -> IrcBot ()
+dispatchCommand (InputMsg inputMsg) = do
+    plugins <- gets botPlugins
+    cmds    <- gets botCommands
+    if command inputMsg == "PRIVMSG"
+      then  -- The first word matters as the command
+        let msg = (parameters inputMsg) !! 1
+            pfx = commandPrefix config
+        in if (head msg) == pfx
+             then
+               let key         = tail msg -- all but the cmd prefix
+                   pluginNames = fromMaybe [] $ M.lookup key cmds
+                   plugins'    = fromMaybe [] $ mapM (flip M.lookup plugins) pluginNames
+               in mapM_ (sendToPlugin (InputMsg inputMsg)) plugins'
+             else
+               mapM_ (sendToPlugin (InputMsg inputMsg)) (M.elems plugins)
+      else
+        return ()
+dispatchCommand _ = return ()
+
+registerCommand :: String -> String -> IrcBot ()
+registerCommand cmd pluginName' = do
+    bot     <- get
+    cmds    <- gets botCommands
+    exists <- pluginExists pluginName'
+    if exists
+      then
+        let cmds' = if cmd `M.member` cmds
+                      then cmds
+                      else M.singleton cmd []
+            newCmds = M.adjust (++ [pluginName']) cmd cmds'
+        in put $ bot { botCommands = newCmds }
+      else
+        traceM $ inColor ("Couldn't register command \"" ++ cmd ++ "\" for plugin \""
+                          ++ pluginName' ++ "\" : plugin does not exists") [31]
+