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|
module Data.JLD (
module Data.JLD.Mime,
module Data.JLD.Error,
module Data.JLD.Options,
JLDExpandParams (..),
expand,
) where
import Data.JLD.Prelude
import Data.JLD.Context (buildActiveContext)
import Data.JLD.Control.Monad.RES (evalREST, runREST)
import Data.JLD.Error
import Data.JLD.Expansion (JLDEParams (..))
import Data.JLD.Expansion qualified as E (expand)
import Data.JLD.Mime
import Data.JLD.Model.ActiveContext (ActiveContext (..), newActiveContext)
import Data.JLD.Model.Keyword (Keyword (..))
import Data.JLD.Model.URI (uriToIri)
import Data.JLD.Monad (JLDEnv, JLDState, newEnv, newState)
import Data.JLD.Options
import Data.JLD.Util (flattenSingletonArray, valueToArray)
import Data.Aeson (Value (..))
import Data.Aeson.KeyMap qualified as KM
import Data.Vector qualified as V (singleton)
import Text.URI (URI)
data JLDExpandParams e m = JLDExpandParams
{ jldExpandParamsExpandContext :: Maybe Value
, jldExpandParamsFrameExpansion :: Bool
, jldExpandParamsEnv :: JLDEnv e m
, jldExpandParamsState :: JLDState
}
deriving (Show)
expand :: Monad m => Value -> URI -> (JLDExpandParams () m -> JLDExpandParams e m) -> m (Either (JLDError e) Value, JLDState)
expand document baseUrl paramsFn = do
let JLDExpandParams{..} =
paramsFn
JLDExpandParams
{ jldExpandParamsExpandContext = Nothing
, jldExpandParamsFrameExpansion = False
, jldExpandParamsEnv = newEnv id
, jldExpandParamsState = newState id
}
activeContext = newActiveContext \ac -> ac{activeContextBaseUrl = Just baseUrl, activeContextBaseIri = uriToIri baseUrl}
expansionParams p = p{jldeParamsFrameExpansion = jldExpandParamsFrameExpansion}
-- 6.
let maybeExpandContext =
jldExpandParamsExpandContext <&> flattenSingletonArray .> \case
Array expandedContext -> Array expandedContext
(Object expandedContext) | Just ctx <- KM.lookup (show KeywordContext) expandedContext -> ctx
expandedContext -> Array <| V.singleton expandedContext
activeContext' <- case maybeExpandContext of
Just expandContext ->
buildActiveContext activeContext expandContext (Just baseUrl) id
|> evalREST jldExpandParamsEnv jldExpandParamsState
|> fmap (fromRight activeContext)
Nothing -> pure activeContext
-- 8.
(result, state') <-
E.expand activeContext' document baseUrl expansionParams
|> runREST jldExpandParamsEnv jldExpandParamsState
let result' = case result of
-- 8.1.
Right (Object expanded)
| KM.size expanded == 1
, Just expanded' <- KM.lookup (show KeywordGraph) expanded ->
Right <. Array <| valueToArray expanded'
-- 8.2.
Right Null -> Right <| Array mempty
-- 8.3.
Right expanded -> Right <. Array <| valueToArray expanded
--
Left err -> Left err
pure (result', state')
|
