Bedroom spec and partially fix writing

LLM had done "rate limiting" via deduplicating outbound calls. But the
ordering matters..

src/HomeAssistant/Controller/Bedroom.hs

@@ -44,10 +44,10 @@ bedroomPresence = presence "binary_sensor.presence_sensor_bedroom_occupancy"
 
 bedroomPresenceController :: HASS (Event Value) ()
 bedroomPresenceController = proc x -> do
-  p <- bedroomPresence -< x
+  p <- bedroomPresence >>> traceEvent -< x
   case p of
        Event Unoccupied -> callService createBedroomScene >>> callService (light bedroomLights Off) -< ()
-       Event Occupied -> callService (activateScene "makuuhuone_lights_snapshot") -< ()
+       Event Occupied -> callService (activateScene "scene.makuuhuone_lights_snapshot") -< ()
        _ -> returnA -< ()
 
 data IkeaGesture

src/HomeAssistant/Runtime/Connection.hs

@@ -39,6 +39,7 @@ import qualified Network.WebSockets as WS
 import Katip (runKatipContextT, sl, logFM, Severity (..), ls)
 import Data.UUID (toText)
 import AFRP (Request(..), Event(..))
+import Control.Monad.IO.Class (liftIO)
 
 -- | Connect, authenticate, subscribe, then receive and broadcast forever.
 -- Restarting this action reconnects. All setup sends happen before the
@@ -111,41 +112,22 @@ receiveJSON conn = do
     Left err -> throw (Fatal $ "Invalid JSON from Home Assistant: " <> T.pack err)
     Right x  -> pure x
 
--- | Floor between sends within a batch: 100ms, so a many-distinct-target
--- flood still caps at ~10 sends/sec even after dedupe.
-minInterval :: Int
-minInterval = 100000
 
--- | Non-blocking drain of everything queued on a channel. Returns items
--- oldest-first (FIFO from the channel), so prepending the blocking
--- `readTChan` item keeps the whole batch oldest-first for `dedupeBatch`.
-drainTry :: TChan a -> IO [a]
-drainTry chan = go []
-  where
-    go acc = do
-      m <- atomically $ tryReadTChan chan
-      case m of
-        Nothing -> pure (reverse acc)
-        Just x  -> go (x : acc)
 
 sendWithId :: Bus -> WS.Connection -> Request -> Service -> IO ()
-sendWithId bus conn request svc = do
-  callId <- generateCallId (busGen bus)
-  let textData = encode $ encodeService callId svc
-  runKatipContextT (busLogEnv bus) (sl "traceId" (toText (requestTraceId request))) "connection" $
+sendWithId bus conn request svc =
+  runKatipContextT (busLogEnv bus) (sl "traceId" (toText (requestTraceId request))) "connection"  $ do
+    callId <- liftIO $ generateCallId (busGen bus)
+    let textData = encode $ encodeService callId svc
     logFM DebugS (ls textData)
-  recordOutbound bus
-  WS.sendTextData conn textData
+    liftIO $ recordOutbound bus
+    liftIO $ WS.sendTextData conn textData
 
 writerAction :: Bus -> IO Void
 writerAction bus = forever $ do
-  first <- atomically $ readTChan (busOutbound bus)
-  rest  <- drainTry (busOutbound bus)
-  let deduped = dedupeBatch (first : rest)
+  (request, svc) <- atomically $ readTChan (busOutbound bus)
   conn <- atomically $ readTVar (busConn bus) >>= maybe retry pure
-  forM_ deduped $ \(request, svc) -> do
-    sendWithId bus conn request svc
-    threadDelay minInterval
+  sendWithId bus conn request svc
 
 encodeService :: Int -> Service -> Value
 encodeService callId Service{..} = object $