Help: Fix type error resulting from new plugin list type with `Bot`

The plugin list's type has changed from `[Plugin]` to `[Bot Plugin]`. In
order for our code here to work, we need to unwrap the `Bot` part so we
can get access to the `Plugin` again and do the same work.

Fortunately, using `sequence`, we can turn our `[Bot Plugin]` into a
`Bot [Plugin]`, which is then easily bound with `<-` and passed to our
old code to be handled like before. Yay!

1 files changed, 6 insertions, 9 deletions

diff --git a/src/Plugin/Help.hs b/src/Plugin/Help.hs
index b29d1b9..ebe3760 100644
--- a/src/Plugin/Help.hs
+++ b/src/Plugin/Help.hs
@@ -23,17 +23,14 @@ help = do
 
 helpAction :: PluginAction
 helpAction _ = do
+    plugins' <- sequence plugins
     return $ Right $ T.intercalate "\n"
-        -- [T.justifyRight longestCommandLen ' ' (command p)
-        --     `T.append` " – "
-        --     `T.append` description p
-        -- | p <- plugins']
+        [T.justifyRight (longestCommandLen plugins') ' ' (command p)
+            `T.append` " – "
+            `T.append` description p
+        | p <- plugins']
   where
-    longestCommandLen = foldr (max) 0 (map (T.length . command) plugins)
-
-    helpText plugin = T.justifyRight longestCommandLen ' ' (command plugin)
-        `T.append` " – "
-        `T.append` description plugin
+    longestCommandLen plugins = foldr (max) 0 (map (T.length . command) plugins)
 
 plugins :: [Bot Plugin]
 plugins = PL.plugins ++ [help]