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module Data.JLD.Model.NodeMap (
NodeMap,
SubjectMap,
PropertyMap,
lookup,
lookup2,
lookup3,
insert,
modifyArray,
hasKey2,
hasKey3,
memberArray,
) where
import Data.JLD.Prelude hiding (modify)
import Data.Aeson (Array, Value (..))
import Data.JLD.Util (valueToArray)
import Data.Map.Strict qualified as M (alter, insert, lookup, member)
type PropertyKey = Maybe Text
type PropertyMap = Map PropertyKey Value
type SubjectKey = Maybe Text
type SubjectMap = Map SubjectKey PropertyMap
type GraphKey = Text
type NodeMap = Map GraphKey SubjectMap
lookup :: GraphKey -> NodeMap -> Maybe SubjectMap
lookup = M.lookup
lookup2 :: GraphKey -> SubjectKey -> NodeMap -> Maybe PropertyMap
lookup2 graphName subject nodeMap = M.lookup graphName nodeMap >>= M.lookup subject
lookup3 :: GraphKey -> SubjectKey -> PropertyKey -> NodeMap -> Maybe Value
lookup3 graphName subject property nodeMap =
M.lookup graphName nodeMap >>= M.lookup subject >>= M.lookup property
modifyArray :: GraphKey -> SubjectKey -> PropertyKey -> (Array -> Array) -> NodeMap -> NodeMap
modifyArray graphName subject property fn =
M.alter (Just <. M.alter (Just <. M.alter (Just <. Array <. fn <. maybe mempty valueToArray) property <. fromMaybe mempty) subject <. fromMaybe mempty) graphName
insert :: GraphKey -> SubjectKey -> PropertyKey -> Value -> NodeMap -> NodeMap
insert graphName subject property value =
M.alter (Just <. M.alter (Just <. M.insert property value <. fromMaybe mempty) subject <. fromMaybe mempty) graphName
hasKey2 :: GraphKey -> SubjectKey -> NodeMap -> Bool
hasKey2 graphName subject nodeMap = maybe False (M.member subject) <| M.lookup graphName nodeMap
hasKey3 :: GraphKey -> SubjectKey -> PropertyKey -> NodeMap -> Bool
hasKey3 graphName subject property nodeMap = maybe False (M.member property) <| M.lookup subject =<< M.lookup graphName nodeMap
memberArray :: GraphKey -> SubjectKey -> PropertyKey -> Value -> NodeMap -> Bool
memberArray graphName subject property value nodeMap = case lookup3 graphName subject property nodeMap of
Just (Array a) -> value `elem` a
_ -> False
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