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module Patat.Presentation.Display.Internal
    ( DisplaySettings (..)
    , themed
    ) where


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import qualified Patat.PrettyPrint as PP
import qualified Patat.Theme       as Theme
import qualified Skylighting       as Skylighting


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data DisplaySettings = DisplaySettings
    { dsTheme     :: !Theme.Theme
    , dsSyntaxMap :: !Skylighting.SyntaxMap
    }


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themed
    :: DisplaySettings -> (Theme.Theme -> Maybe Theme.Style) -> PP.Doc -> PP.Doc
themed ds f = case f (dsTheme ds) of
    Nothing                  -> id
    Just (Theme.Style [])    -> id
    Just (Theme.Style codes) -> PP.ansi codes