{-# LANGUAGE QuasiQuotes #-}
{-# LANGUAGE TemplateHaskell #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE EmptyDataDecls #-}

module Numeric.Sundials.CLangToHaskellTypes where

import           Foreign.C.Types

import qualified Language.Haskell.TH as TH
import qualified Language.C.Types as CT
import qualified Data.Map as Map
import           Language.C.Inline.Context

import qualified Data.Vector.Storable as V


data SunVector
data SunMatrix = SunMatrix { rows :: CInt
                           , cols :: CInt
                           , vals :: V.Vector CDouble
                           }

-- | This is true only if configured/ built as 64 bits
type SunIndexType = CLong

sunTypesTable :: Map.Map CT.TypeSpecifier TH.TypeQ
sunTypesTable = Map.fromList
  [
    (CT.TypeName "sunindextype", [t| SunIndexType |] )
  , (CT.TypeName "SunVector", [t| SunVector |] )
  , (CT.TypeName "SunMatrix", [t| SunMatrix |] )
  ]

sunCtx :: Context
sunCtx = mempty {ctxTypesTable = sunTypesTable}