refactor(users/glittershark): Rename to grfn r/2485

Rename my //users directory and all places that refer to glittershark to
grfn, including nix references and documentation.

This may require some extra attention inside of gerrit's database after
it lands to allow me to actually push things.

Change-Id: I4728b7ec2c60024392c1c1fa6e0d4a59b3e266fa
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2933
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
Reviewed-by: lukegb <lukegb@tvl.fyi>
Reviewed-by: glittershark <grfn@gws.fyi>

1 files changed, 156 insertions, 0 deletions

diff --git a/users/grfn/owothia/src/Main.hs b/users/grfn/owothia/src/Main.hs
new file mode 100644
index 000000000000..65578f258c1a
--- /dev/null
+++ b/users/grfn/owothia/src/Main.hs
@@ -0,0 +1,156 @@
+{-# LANGUAGE TemplateHaskell #-}
+module Main where
+
+import           Network.IRC.Client
+import           Control.Lens
+import           NLP.POS
+import           NLP.Types (POSTagger)
+import qualified NLP.Types.Tags as Tags
+import           NLP.Types.Tree
+import qualified NLP.Corpora.Conll as Conll
+import           NLP.Corpora.Conll (Tag)
+import qualified Data.ByteString as BS
+import           System.Random
+import           System.Envy
+import           Data.Maybe
+import qualified Data.Text
+--------------------------------------------------------------------------------
+
+data Config = Config
+  { _owoChance :: Int
+  , _ircServer :: ByteString
+  , _ircPort :: Int
+  , _ircServerPassword :: Maybe Text
+  , _nickservPassword :: Maybe Text
+  , _ircNick :: Maybe Text
+  }
+  deriving stock (Show, Eq, Generic)
+makeLenses ''Config
+
+instance FromEnv Config where
+  fromEnv _ =
+    Config <$> env "OWO_CHANCE"
+       <*> env "IRC_SERVER"
+       <*> env "IRC_PORT"
+       <*> envMaybe "IRC_SERVER_PASSWORD"
+       <*> envMaybe "NICKSERV_PASSWORD"
+       <*> envMaybe "IRC_NICK"
+
+stopWord :: Text -> Bool
+stopWord "'s"   = True
+stopWord "\""   = True
+stopWord "is"   = True
+stopWord "are"  = True
+stopWord "am"   = True
+stopWord "were" = True
+stopWord "was"  = True
+stopWord "be"   = True
+stopWord _      = False
+
+pickVerb :: POS Tag -> Maybe Text
+pickVerb (POS Conll.VB (Token verb)) = Just verb
+pickVerb (POS Conll.VBD (Token verb)) = Just verb
+pickVerb (POS Conll.VBG (Token verb)) = Just verb
+pickVerb (POS Conll.VBN (Token verb)) = Just verb
+pickVerb (POS Conll.VBZ (Token verb)) = Just verb
+pickVerb _ = Nothing
+
+pickNoun :: POS Tag -> Maybe Text
+pickNoun (POS Conll.NN (Token noun)) = Just noun
+pickNoun _ = Nothing
+
+randomPOS
+  :: Tags.Tag tag
+  => (POS tag -> Maybe Text)
+  -> POSTagger tag
+  -> Text
+  -> IO (Maybe Text)
+randomPOS pickPOS tagger s = do
+  let candidates
+        = filter (not . stopWord)
+        . mapMaybe pickPOS
+        $ tag tagger s >>= \(TaggedSent ps) -> ps
+  i <- randomRIO (0, length candidates - 1)
+  pure $ candidates ^? ix i
+
+doOwo :: MonadIO m => Config -> m Bool
+doOwo conf = do
+  n <- liftIO (randomRIO @Int (0, conf ^. owoChance))
+  pure $ n == 0
+
+data OwoType = Noun | Verb
+  deriving stock (Show, Eq)
+
+instance Random OwoType where
+  random = over _1 (bool Noun Verb) . random
+  randomR = const random
+
+vowels :: [Char]
+vowels = "aeiou"
+
+article :: Text -> Text
+article (x :< _) | x `elem` vowels = "an"
+article _ = "a"
+
+owo :: OwoType -> Text -> Text
+owo Noun n = mconcat
+  [ "I'm "
+  , article n
+  , " "
+  , n
+  , if "o" `Data.Text.isSuffixOf` n
+    then "wo"
+    else " owo"
+  ]
+owo Verb v = v <> " me owo"
+
+pickOwo :: OwoType -> POS Tag -> Maybe Text
+pickOwo Verb = pickVerb
+pickOwo Noun = pickNoun
+
+randomOwo :: OwoType -> POSTagger Tag -> Text -> IO (Maybe Text)
+randomOwo = randomPOS . pickOwo
+
+owothiaHandler :: Config -> Text -> IORef Bool -> POSTagger Tag -> EventHandler s
+owothiaHandler conf nick state tagger = EventHandler Just $ \src ev -> do
+  hasIdentified <- readIORef state
+  when (not hasIdentified) $ do
+    nickservAuth
+    send $ Join "##tvl"
+    writeIORef state True
+
+  when ("You are now identified" `BS.isInfixOf` (ev ^. raw)) $
+    send $ Join "##tvl"
+
+  case (src, ev ^. message) of
+    (Channel "##tvl" nick, Privmsg _ (Right m)) -> do
+      willOwo <- doOwo conf
+      when willOwo $ owoMessage m
+    _ -> pure ()
+
+  pure ()
+
+  where
+    owoMessage m = do
+      owoType <- liftIO randomIO
+      mWord <- liftIO $ randomOwo owoType tagger m
+      for_ mWord $ \word -> send $ Privmsg "##tvl" $ Right $ owo owoType word
+    nickservAuthMsg = "IDENTIFY " <> nick <> " " <> fromJust (conf ^. nickservPassword)
+    nickservAuth = send $ Privmsg "NickServ" $ Right nickservAuthMsg
+
+main :: IO ()
+main = do
+  conf <- either fail pure =<< decodeEnv
+  tagger <- defaultTagger
+  state <- newIORef $ not . isJust $ (conf ^. nickservPassword)
+  let nick = fromMaybe "owothia" (conf ^. ircNick)
+      conn =
+        plainConnection (conf ^. ircServer) (conf ^. ircPort)
+          & realname .~ "Owothia Revströwö"
+          & password .~ (conf ^. ircServerPassword)
+          & logfunc .~ stdoutLogger
+      cfg =
+        defaultInstanceConfig nick
+          & channels .~ ["##tvl"]
+          & handlers %~ (owothiaHandler conf nick state tagger : )
+  runClient conn cfg ()