Bot(privmsgFromPlugin): Try to use the `Bot` monad instead of `IO`

Convert this function and `Plugins(performPlugin)` to use a
`Bot`-wrapped plugin.

Still having a lot of trouble with this, unable to get past
monad-related compilation errors. The plan is to leave this as-is for
now and attack the problem from a different place, looking at the `main`
function next, applying our plugins with `runBot`, and then passing
those monad-wrapped plugins to `connectIRC`. Once that's taken care of,
we'll see what we need to modify in this middle strata of the stack.

2 files changed, 8 insertions, 4 deletions

diff --git a/src/IRC.hs b/src/IRC.hs
index 2127aa7..18508b2 100644
--- a/src/IRC.hs
+++ b/src/IRC.hs
@@ -13,6 +13,7 @@ import qualified Data.Text as T
 
 import qualified Network.IRC.Client as IRC
 
+import Bot (Bot)
 import Message
 import Plugin (matchPlugin, performPlugin)
 import Plugin.Base (queryOnly)
@@ -61,10 +62,11 @@ handlePrivmsg = IRC.EventHandler
                     Nothing -> return ()
                     Just r  -> sequence_ r
 
-privmsgFromPlugin :: Message -> MaybeT IO [IRC.StatefulIRC s ()]
+privmsgFromPlugin :: Message -> MaybeT Bot [IRC.StatefulIRC s ()]
 privmsgFromPlugin message = do
     plugin <- liftMaybe $ matchPlugin message
-    response <- liftIO $ performPlugin plugin message
+    response <- lift $ performPlugin plugin message
+    -- plugin' <- liftMaybe plugin
     return $ case response of
         Left err -> [IRC.send $ IRC.Privmsg
             (toChannel plugin message)
diff --git a/src/Plugin.hs b/src/Plugin.hs
index 04a8054..d4aa6f9 100644
--- a/src/Plugin.hs
+++ b/src/Plugin.hs
@@ -67,8 +67,10 @@ matchPlugins message plugins =
 --     [return p | p <- plugins', M.textStr message =~ matchRegex p]
 
 -- | Run the action belonging to the plugin, stored in its `perform` field.
-performPlugin :: Plugin -> PluginAction
-performPlugin p message = perform p $ message
+performPlugin :: Bot Plugin -> PluginAction
+performPlugin p message = do
+    plugin <- p
+    perform plugin $ message
 
 plugins :: [Bot Plugin]
 plugins = PL.plugins ++ [help]