module Codec.Tiled.Map.IO ( MapError(..) , readFile , writeFile ) where import Prelude hiding (readFile, writeFile) import Control.Exception (Exception, throwIO) import Control.Monad.IO.Class (MonadIO(..)) import Data.Aeson qualified as Aeson import Data.ByteString (ByteString) import Data.ByteString qualified as ByteString import Data.Text (Text) import Data.Text qualified as Text import Codec.Tiled.Map (Map) newtype MapError = MapError Text deriving (MapError -> MapError -> Bool forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a /= :: MapError -> MapError -> Bool $c/= :: MapError -> MapError -> Bool == :: MapError -> MapError -> Bool $c== :: MapError -> MapError -> Bool Eq, Int -> MapError -> ShowS [MapError] -> ShowS MapError -> String forall a. (Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a showList :: [MapError] -> ShowS $cshowList :: [MapError] -> ShowS show :: MapError -> String $cshow :: MapError -> String showsPrec :: Int -> MapError -> ShowS $cshowsPrec :: Int -> MapError -> ShowS Show) instance Exception MapError readFile :: MonadIO m => FilePath -> m Map readFile :: forall (m :: * -> *). MonadIO m => String -> m Map readFile String source = forall (m :: * -> *) a. MonadIO m => IO a -> m a liftIO do ByteString bytes <- String -> IO ByteString ByteString.readFile String source case ByteString -> Either String Map decodeMap ByteString bytes of Left String msg -> forall e a. Exception e => e -> IO a throwIO forall a b. (a -> b) -> a -> b $ Text -> MapError MapError (String -> Text Text.pack String msg) Right Map res -> forall (f :: * -> *) a. Applicative f => a -> f a pure Map res decodeMap :: ByteString -> Either String Map decodeMap :: ByteString -> Either String Map decodeMap = forall a. FromJSON a => ByteString -> Either String a Aeson.eitherDecodeStrict' writeFile :: MonadIO m => FilePath -> Map -> m () writeFile :: forall (m :: * -> *). MonadIO m => String -> Map -> m () writeFile String destination = forall (m :: * -> *) a. MonadIO m => IO a -> m a liftIO forall b c a. (b -> c) -> (a -> b) -> a -> c . forall a. ToJSON a => String -> a -> IO () Aeson.encodeFile String destination