module Development.IDE.Graph.Internal.Options where

import           Control.Monad.Trans.Reader
import           Data.Dynamic
import           Development.IDE.Graph.Internal.Types

data ShakeOptions = ShakeOptions {
    -- | Has no effect, kept only for api compatibility with Shake
    shakeThreads            :: Int,
    shakeFiles              :: FilePath,
    shakeExtra              :: Maybe Dynamic,
    shakeAllowRedefineRules :: Bool,
    shakeTimings            :: Bool
    }

shakeOptions :: ShakeOptions
shakeOptions = ShakeOptions 0 ".shake" Nothing False False

getShakeExtra :: Typeable a => Action (Maybe a)
getShakeExtra = do
    extra <- Action $ asks $ databaseExtra . actionDatabase
    pure $ fromDynamic extra

getShakeExtraRules :: Typeable a => Rules (Maybe a)
getShakeExtraRules = do
    extra <- Rules $ asks rulesExtra
    pure $ fromDynamic extra

newShakeExtra :: Typeable a => a -> Maybe Dynamic
newShakeExtra = Just . toDyn