Added Administrative plugin that will permit dynamic reloading

Hsbot/Plugin/Admin.hs

@@ -0,0 +1,45 @@
+module Hsbot.Plugin.Admin
+    ( admin
+    , theAdmin
+    ) where
+
+import Control.Concurrent.Chan ()
+import Control.Monad.Reader
+import qualified Network.IRC as IRC
+import Prelude hiding (catch)
+
+import Hsbot.Message
+import Hsbot.Types
+import Hsbot.Utils
+
+-- | The Admin plugin identity
+admin :: PluginId
+admin = PluginId
+    { pluginName = "admin"
+    , pluginEp   = theAdmin }
+
+-- | An IRC plugin for manage hsbot
+theAdmin :: Plugin (Env IO) ()
+theAdmin = forever $ readMsg >>= eval
+  where
+    eval :: Message -> Plugin (Env IO) ()
+    eval (IncomingMsg msg)
+        | IRC.msg_command msg == "PRIVMSG" = do
+            cmdArgs <- lift $ getCommand msg
+            case cmdArgs of
+                "exit":"help":_ -> answerMsg msg "exit hsbot."
+                "exit":_ -> lift (hasAccess (IRC.msg_prefix msg) Admin) >>= \right -> if right
+                        then lift $ setGlobalQuitMVar BotExit
+                        else answerMsg msg "Only admins can do that."
+                "restart":"help":_ -> answerMsg msg "restart hsbot, reset the running state to config file directives."
+                "restart":_ -> lift (hasAccess (IRC.msg_prefix msg) Admin) >>= \right -> if right
+                        then lift $ setGlobalQuitMVar BotRestart
+                        else answerMsg msg "Only admins can do that."
+                "reload":"help":_ -> answerMsg msg "reload hsbot, and try merge the new config file directives with actual running state)."
+                "reload":_ -> lift (hasAccess (IRC.msg_prefix msg) Admin) >>= \right -> if right
+                        then lift $ setGlobalQuitMVar BotReload
+                        else answerMsg msg "Only admins can do that."
+                _ -> return ()
+        | otherwise = return ()
+    eval _ = return ()
+

hsbot.cabal

@@ -23,6 +23,7 @@ Library
                     Hsbot.Core
                     Hsbot.Message
                     Hsbot.Plugin
+                    Hsbot.Plugin.Admin
                     Hsbot.Plugin.Duck
                     Hsbot.Plugin.Ping
                     Hsbot.Types