-----------------------------------------------------------------------------
-- |
-- Module      :  Miso.FFI.Storage
-- Copyright   :  (C) 2016-2025 David M. Johnson
-- License     :  BSD3-style (see the file LICENSE)
-- Maintainer  :  David M. Johnson <code@dmj.io>
-- Stability   :  experimental
-- Portability :  non-portable
----------------------------------------------------------------------------
module Miso.FFI.Storage
  ( Storage
  , localStorage
  , sessionStorage
  , getItem
  , removeItem
  , setItem
  , length
  , clear
  ) where
-----------------------------------------------------------------------------
import Prelude hiding (length)
import Language.Javascript.JSaddle ((!), (#), JSM, fromJSValUnchecked, jsg, JSVal)
-----------------------------------------------------------------------------
import Miso.String hiding (length)
-----------------------------------------------------------------------------
newtype Storage = Storage JSVal
-----------------------------------------------------------------------------
localStorage :: JSM Storage
localStorage = Storage <$> (jsg "window" ! "localStorage")
-----------------------------------------------------------------------------
sessionStorage :: JSM Storage
sessionStorage = Storage <$> (jsg "window" ! "sessionStorage")
-----------------------------------------------------------------------------
getItem :: Storage -> MisoString -> JSM JSVal
getItem (Storage s) key =
  s # "getItem" $ [key]
-----------------------------------------------------------------------------
removeItem :: Storage -> MisoString -> JSM ()
removeItem (Storage s) key = do
  _ <- s # "removeItem" $ [key]
  pure ()
-----------------------------------------------------------------------------
setItem :: Storage -> MisoString -> MisoString -> JSM ()
setItem (Storage s) key val = do
  _ <- s # "setItem" $ (key, val)
  pure ()
-----------------------------------------------------------------------------
length :: Storage -> JSM Int
length (Storage s) = fromJSValUnchecked =<< s ! "length"
-----------------------------------------------------------------------------
clear :: Storage -> JSM ()
clear (Storage s) = do
  _ <- s # "clear" $ ()
  pure ()
-----------------------------------------------------------------------------