src/Gargantext/API/GraphQL/Node.hs

   1 {-# LANGUAGE DeriveAnyClass #-}
   2 {-# LANGUAGE DuplicateRecordFields #-}
   3
   4 module Gargantext.API.GraphQL.Node where
   5
   6 import Data.Aeson
   7 import Data.Either (Either(..))
   8 import qualified Data.HashMap.Strict as HashMap
   9 import Data.Morpheus.Types
  10   ( GQLType
  11   , Resolver
  12   , QUERY
  13   , lift
  14   )
  15 import Data.Text (Text)
  16 import qualified Data.Text as T
  17 import Gargantext.API.Prelude (GargM, GargError)
  18 import Gargantext.Database.Admin.Types.Node (NodeId(..), NodeType)
  19 import qualified Gargantext.Database.Admin.Types.Node as NN
  20 import Gargantext.Database.Query.Table.Node (getClosestParentIdByType, getNode)
  21 import Gargantext.Database.Prelude (CmdCommon)  -- , JSONB)
  22 import qualified Gargantext.Database.Schema.Node as N
  23 import Gargantext.Prelude
  24 import GHC.Generics (Generic)
  25 import qualified Prelude
  26 import qualified PUBMED.Types as PUBMED
  27 import Text.Read (readEither)
  28
  29 data Corpus = Corpus
  30   { id           :: Int
  31   , name         :: Text
  32   , parent_id    :: Maybe Int
  33   , type_id      :: Int
  34   } deriving (Show, Generic, GQLType)
  35
  36 data Node = Node
  37   { id           :: Int
  38   , name         :: Text
  39   , parent_id    :: Maybe Int
  40   , type_id      :: Int
  41   } deriving (Show, Generic, GQLType)
  42
  43 data CorpusArgs
  44   = CorpusArgs
  45     { corpus_id :: Int
  46     } deriving (Generic, GQLType)
  47
  48 data NodeArgs
  49   = NodeArgs
  50     { node_id :: Int
  51     } deriving (Generic, GQLType)
  52
  53 type GqlM e env = Resolver QUERY e (GargM env GargError)
  54
  55 -- | Function to resolve user from a query.
  56 resolveNodes
  57   :: (CmdCommon env)
  58   => NodeArgs -> GqlM e env [Node]
  59 resolveNodes NodeArgs { node_id } = dbNodes node_id
  60
  61 resolveNodesCorpus
  62   :: (CmdCommon env)
  63   => CorpusArgs -> GqlM e env [Corpus]
  64 resolveNodesCorpus CorpusArgs { corpus_id } = dbNodesCorpus corpus_id
  65
  66 dbNodes
  67   :: (CmdCommon env)
  68   => Int -> GqlM e env [Node]
  69 dbNodes node_id = do
  70   node <- lift $ getNode $ NodeId node_id
  71   pure [toNode node]
  72
  73 dbNodesCorpus
  74   :: (CmdCommon env)
  75   => Int -> GqlM e env [Corpus]
  76 dbNodesCorpus corpus_id = do
  77   corpus <- lift $ getNode $ NodeId corpus_id
  78   pure [toCorpus corpus]
  79
  80 data NodeParentArgs
  81   = NodeParentArgs
  82     { node_id     :: Int
  83     , parent_type :: Text
  84     } deriving (Generic, GQLType)
  85
  86 resolveNodeParent
  87   :: (CmdCommon env)
  88   => NodeParentArgs -> GqlM e env [Node]
  89 resolveNodeParent NodeParentArgs { node_id, parent_type } = dbParentNodes node_id parent_type
  90
  91 dbParentNodes
  92   :: (CmdCommon env)
  93   => Int -> Text -> GqlM e env [Node]
  94 dbParentNodes node_id parent_type = do
  95   let mParentType = readEither (T.unpack parent_type) :: Either Prelude.String NodeType
  96   case mParentType of
  97     Left err -> do
  98       lift $ printDebug "[dbParentNodes] error reading parent type" (T.pack err)
  99       pure []
 100     Right parentType -> do
 101       mNodeId <- lift $ getClosestParentIdByType (NodeId node_id) parentType -- (fromNodeTypeId parent_type_id)
 102       case mNodeId of
 103         Nothing -> pure []
 104         Just id -> do
 105           node <- lift $ getNode id
 106           pure [toNode node]
 107
 108 toNode :: NN.Node json -> Node
 109 toNode N.Node { .. } = Node { id = NN.unNodeId _node_id
 110                             , name = _node_name
 111                             , parent_id = NN.unNodeId <$> _node_parent_id
 112                             , type_id = _node_typename }
 113
 114 toCorpus :: NN.Node Value -> Corpus
 115 toCorpus N.Node { .. } = Corpus { id = NN.unNodeId _node_id
 116                                 , name = _node_name
 117                                 , parent_id = NN.unNodeId <$> _node_parent_id
 118                                 , type_id = _node_typename }
 119
 120 pubmedAPIKeyFromValue :: Value -> Maybe PUBMED.APIKey
 121 pubmedAPIKeyFromValue (Object kv) =
 122   case HashMap.lookup "pubmed_api_key" kv of
 123     Nothing -> Nothing
 124     Just v  -> case fromJSON v of
 125       Error _    -> Nothing
 126       Success v' -> Just v'
 127 pubmedAPIKeyFromValue _           = Nothing