Connect plugins to IRC

Instead of sending a hard-coded string message over IRC, now invoke our
plugin list.

Now, IRC messages get matched against our plugin list, and if any plugin
matches, its return string gets posted to the appropriate channel.

Move the database connection inside the plugin so that we can continue
to access it without having to pass in the DB connection. I didn't want
to connect to the database in the IRC code because it doesn't relate,
and I don't have a good enough grasp of monads to know if I can create
the connection in "Lib.hs" and "pass" it to the IRC message handler to
then pass it into the plugins.

Moving the database connection inside the plugins means that it no
longer takes a database connection as an argument.

The IRC message handler now has a lot of duplication, but it basically
works, which is super exciting! Took a _long_ time to figure out the
proper way to get the types to line up and get this compiling, but
really glad it's working now! The magic function turned out to be
`liftIO` to extract the `Either String String` out of its `IO` monad
wrapper to be fed to the `IRC.send` function.

Not a fan of the type conversion between `String` and `Data.Text`, so
we'll eventually have to convert our plugins to use `Data.Text`.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/Lib.hs b/src/Lib.hs
index f72729e..b23bf78 100644
--- a/src/Lib.hs
+++ b/src/Lib.hs
@@ -20,7 +20,7 @@ someFunc = do
     --         }
     --     Just plugin = matchPlugin message
     -- dbConn <- open "db/sorbot_development.sqlite3"
-    -- response <- performPlugin plugin message dbConn
+    -- response <- performPlugin plugin message
     -- putStrLn $ case response of
     --     Left e  -> e
     --     Right r -> r