load initial node data

src/NTree.purs

 module NTree where
 
-import Data.Tuple (Tuple(..))
 import Prelude hiding (div)
+
+import Control.Monad.Aff (Aff, attempt)
+import Control.Monad.Aff.Class (liftAff)
+import Control.Monad.Eff.Class (liftEff)
+import Control.Monad.Eff.Console (CONSOLE, log)
+import Data.Argonaut (class DecodeJson, decodeJson, (.?))
+import Data.Either (Either(..))
+import Data.HTTP.Method (Method(..))
+import Data.Newtype (class Newtype)
+import Data.Tuple (Tuple(..))
+import Network.HTTP.Affjax (AJAX, affjax, defaultRequest)
 import React (ReactElement)
 import React.DOM (a, div, i, li, text, ul)
 import React.DOM.Props (Props, className, href, onClick)
@@ -106,3 +116,36 @@ toHtml d (NNode id open name ary) =
 
 fldr :: Boolean -> Props
 fldr open = if open then className "fas fa-folder-open" else className "fas fa-folder"
+
+
+newtype LNode = LNode {id :: Int, name :: String}
+
+derive instance newtypeLNode :: Newtype LNode _
+
+instance decodeJsonLNode :: DecodeJson LNode where
+  decodeJson json = do
+    obj <- decodeJson json
+    id_ <- obj .? "id"
+    name <- obj .? "name"
+    pure $ LNode {id : id_, name}
+
+loadDefaultNode ::forall eff. Aff (ajax :: AJAX, console :: CONSOLE | eff) (Either String (Array LNode))
+loadDefaultNode = do
+  res <- liftAff $ attempt $ affjax defaultRequest
+         { url = "http://localhost:8008/user"
+         , method = Left GET
+         }
+  case res of
+    Left err -> do
+      _ <- liftEff $ log $ show err
+      pure $ Left $ show err
+    Right a -> do
+      _ <- liftEff $ log $ show a.status
+      _ <- liftEff $ log $ show a.headers
+      _ <- liftEff $ log $ show a.response
+      let resp = decodeJson a.response
+      pure resp
+
+
+fnTransform :: LNode -> FTree
+fnTransform (LNode r) = NNode r.id false r.name []

src/Navigation.purs

@@ -2,28 +2,31 @@ module Navigation where
 
 import DOM
 import Gargantext.Data.Lang
+import Prelude hiding (div)
 
 import AddCorpusview as AC
 import AnnotationDocumentView as D
 import Control.Monad.Cont.Trans (lift)
 import Control.Monad.Eff (Eff)
 import Control.Monad.Eff.Class (liftEff)
-import Control.Monad.Eff.Console (CONSOLE)
+import Control.Monad.Eff.Console (CONSOLE, log)
 import CorpusAnalysis as CA
-import Data.Array (concat)
+import Data.Array (concat, head, length)
 import Data.Either (Either(..))
 import Data.Foldable (fold, intercalate)
 import Data.Lens (Lens', Prism', lens, over, prism)
-import Data.Maybe (Maybe(Nothing, Just))
+import Data.Maybe (Maybe(Nothing, Just), fromJust)
 import Data.Tuple (Tuple(..))
 import DocView as DV
+import GraphExplorer as GE
 import Landing as L
 import Login as LN
 import Modal (modalShow)
+import NTree (fnTransform, loadDefaultNode)
 import NTree as NT
 import Network.HTTP.Affjax (AJAX)
 import PageRouter (Routes(..))
-import Prelude hiding (div)
+import Partial.Unsafe (unsafePartial)
 import React (ReactElement)
 import React.DOM (a, button, div, footer, form, hr, i, img, input, li, p, span, text, ul)
 import React.DOM.Props (Props, _data, _id, _type, aria, className, href, name, onChange, onClick, placeholder, role, src, style, tabIndex, target, title)
@@ -34,7 +37,6 @@ import Tabview as TV
 import Thermite (PerformAction, Render, Spec, _render, cotransform, defaultPerformAction, defaultRender, focus, modifyState, simpleSpec, withState)
 import Unsafe.Coerce (unsafeCoerce)
 import UserPage as UP
-import GraphExplorer as GE
 
 type E e = (dom :: DOM, ajax :: AJAX, console :: CONSOLE | e)
 
@@ -54,6 +56,7 @@ type AppState =
   , showLogin :: Boolean
   , showCorpus :: Boolean
   , graphExplorer :: GE.State
+  , initialized :: Boolean
   }
 
 initAppState :: AppState
@@ -73,6 +76,7 @@ initAppState =
   , showLogin : false
   , showCorpus : false
   , graphExplorer : GE.initialState
+  , initialized : false
   }
 
 data Action
@@ -97,6 +101,8 @@ data Action
 
 
 performAction :: forall eff props. PerformAction ( dom :: DOM
+                                                 , ajax :: AJAX
+                                                 , console :: CONSOLE
                                                  | eff
                                                  ) AppState props Action
 performAction (SetRoute route)  _ _ = void do
@@ -121,7 +127,18 @@ performAction Go  _ _ = void do
  -- _ <- lift $ setHash "/addCorpus"
   --modifyState id
 
-
+performAction Initialize  _ state = void do
+  _ <- liftEff $ log "loading Initial nodes"
+  case state.initialized of
+    false -> do
+      lnodes <- lift $ loadDefaultNode
+      case lnodes of
+        Left err -> do
+          modifyState id
+        Right d -> do
+          modifyState $ _ {initialized = true, ntreeView = if length d > 0 then fnTransform $ unsafePartial $ fromJust $ head d else NT.initialState}
+    _ -> do
+      modifyState id
 performAction _ _ _ = void do
   modifyState id
 
@@ -272,7 +289,7 @@ pagesComponent s =
     selectSpec PGraphExplorer = focus _graphExplorerState _graphExplorerAction  GE.spec
     selectSpec _ = simpleSpec defaultPerformAction defaultRender
 
-routingSpec :: forall props eff. Spec (dom :: DOM |eff) AppState props Action
+routingSpec :: forall props eff. Spec (ajax :: AJAX, console :: CONSOLE, dom :: DOM |eff) AppState props Action
 routingSpec = simpleSpec performAction defaultRender
 
 
@@ -456,7 +473,7 @@ liNav (LiNav { title : title'
 
 
 -- TODO put the search form in the center of the navBar
-divSearchBar :: forall props eff. Spec (dom :: DOM |eff) AppState props Action
+divSearchBar :: forall props eff. Spec (ajax :: AJAX, console :: CONSOLE, dom :: DOM |eff) AppState props Action
 divSearchBar = simpleSpec performAction render
   where
     render :: Render AppState props Action
@@ -502,7 +519,7 @@ divDropdownRight d =
 
 
 
-layoutFooter ::  forall props eff. Spec (dom :: DOM |eff) AppState props Action
+layoutFooter ::  forall props eff. Spec (ajax :: AJAX, console :: CONSOLE, dom :: DOM |eff) AppState props Action
 layoutFooter = simpleSpec performAction render
   where
     render :: Render AppState props Action
@@ -548,18 +565,20 @@ dispatchAction :: forall t115 t445 t447.
                   Bind t445 => Applicative t445  =>
                   (Action -> t445 t447) -> t115 -> Routes -> t445 Unit
 dispatchAction dispatcher _ Home = do
-  _ <- dispatcher $ SetRoute $ Home
-  _ <- dispatcher $ LandingA $ L.NoOp
+  _ <- dispatcher Initialize
+  _ <- dispatcher $ SetRoute Home
+  _ <- dispatcher $ LandingA L.NoOp
   pure unit
 
 dispatchAction dispatcher _ Login = do
-  _ <- dispatcher $ SetRoute $ Login
-  _ <- dispatcher $ LoginA   $ LN.NoOp
+  _ <- dispatcher Initialize
+  _ <- dispatcher $ SetRoute Login
+  _ <- dispatcher $ LoginA LN.NoOp
   pure unit
 
 dispatchAction dispatcher _ AddCorpus = do
-  _ <- dispatcher $ SetRoute   $ AddCorpus
-  _ <- dispatcher $ AddCorpusA $ AC.LoadDatabaseDetails
+  _ <- dispatcher $ SetRoute AddCorpus
+  _ <- dispatcher $ AddCorpusA AC.LoadDatabaseDetails
   pure unit
 
 dispatchAction dispatcher _ DocView = do