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|
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE TypeFamilies #-}
module Hsm.Web
( Web
, runServer
, runWeb
)
where
import Data.Aeson (encode)
import Effectful (Dispatch (Static), DispatchOf, Eff, IOE, liftIO, (:>))
import Effectful.Dispatch.Static
( SideEffects (WithSideEffects)
, StaticRep
, evalStaticRep
, getStaticRep
, unEff
, unsafeEff
)
import Effectful.Dispatch.Static.Primitive (Env)
import Effectful.Exception (finally)
import Hsm.INA226 (I2CINA226, INA226, readINA226State)
import Hsm.Log (Logs, Severity (Info, Trace), logMsg, makeLoggerIO)
import Network.Wai.Handler.Warp (defaultSettings, setLogger)
import Network.Wai.Middleware.Static (addBase, noDots, staticPolicy, (>->))
import Paths_hsm_web (getDataFileName)
import Web.Scotty (Options (settings, verbose), defaultOptions, file, get, middleware, raw, scottyOpts, setHeader)
data Web (a :: * -> *) (b :: *)
type instance DispatchOf Web = Static WithSideEffects
newtype instance StaticRep Web
= Web Options
server :: (I2CINA226 :> es, INA226 :> es, Logs '["i2c", "ina226"] es) => Options -> Env es -> IO ()
server options env = do
dist <- getDataFileName "Client/dist/"
scottyOpts options $ do
middleware . staticPolicy $ noDots >-> addBase dist
get "/" . file $ dist <> "index.html"
get "/ina226" $ do
setHeader "Content-Type" "application/json"
liftIO (unEff readINA226State env) >>= raw . encode
runServer :: (I2CINA226 :> es, INA226 :> es, Logs '["i2c", "ina226", "web"] es, Web :> es) => Eff es ()
runServer = finally startServer stopServer
where
startServer = do
Web options <- getStaticRep
logMsg @"web" Info "Starting scotty web server"
unsafeEff $ server options
stopServer = logMsg @"web" Info "Stopping scotty web server"
runWeb :: (IOE :> es, Logs '["scotty", "web"] es) => Eff (Web : es) a -> Eff es a
runWeb action = do
logMsg @"web" Info "Registering logger for scotty web server"
scottyLogger <- logRequest <$> makeLoggerIO @"scotty"
evalStaticRep (Web $ options scottyLogger) action
where
logRequest loggerIO request status fileSize = loggerIO Trace $ unwords [show request, show status, show fileSize]
options logger = defaultOptions{verbose = 0, settings = setLogger logger defaultSettings}
|
