{-|
Module      : Gargantext.Database.Action.Share
Description : 
Copyright   : (c) CNRS, 2017-Present
License     : AGPL + CECILL v3
Maintainer  : team@gargantext.org
Stability   : experimental
Portability : POSIX

-}


module Gargantext.Database.Action.Share
  where

import Control.Lens (view)
import Gargantext.Database
import Gargantext.Core.Types.Individu (User(..))
import Gargantext.Database.Action.Flow.Utils (getUserId)
import Gargantext.Database.Admin.Config (hasNodeType, isInNodeTypes)
import Gargantext.Database.Admin.Types.Hyperdata (HyperdataAny(..))
import Gargantext.Database.Admin.Types.Node
import Gargantext.Database.Query.Table.Node (getNode, getNodesWith)
import Gargantext.Database.Query.Table.Node.Error (HasNodeError, errorWith)
import Gargantext.Database.Query.Table.NodeNode (deleteNodeNode)
import Gargantext.Database.Query.Tree.Root (getRootId)
import Gargantext.Database.Schema.Node
import Gargantext.Prelude

-- | TODO move in Config of Gargantext
publicNodeTypes :: [NodeType]
publicNodeTypes = [NodeDashboard, NodeGraph, NodePhylo, NodeFile]

------------------------------------------------------------------------

data ShareNodeWith = ShareNodeWith_User { snwu_nodetype :: NodeType
                                        , snwu_user    :: User }
                   | ShareNodeWith_Node { snwn_nodetype :: NodeType
                                        , snwn_node_id :: NodeId
                                        }

------------------------------------------------------------------------
shareNodeWith :: HasNodeError err
              => ShareNodeWith
              -> NodeId
              -> Cmd err Int
shareNodeWith (ShareNodeWith_User NodeFolderShared u) n = do
  nodeToCheck <- getNode   n
  userIdCheck <- getUserId u
  if not (hasNodeType nodeToCheck NodeTeam)
    then errorWith "[G.D.A.S.shareNodeWith] Can share node Team only"
    else
      if (view node_userId nodeToCheck == userIdCheck)
        then errorWith "[G.D.A.S.shareNodeWith] Can share to others only"
        else do
          folderSharedId  <- getFolderId u NodeFolderShared
          insertDB ([NodeNode folderSharedId n Nothing Nothing]:: [NodeNode])

shareNodeWith (ShareNodeWith_Node NodeFolderPublic nId) n = do
  nodeToCheck <- getNode n
  if not (isInNodeTypes nodeToCheck publicNodeTypes)
    then errorWith $ "[G.D.A.S.shareNodeWith] Can share this nodesTypes only: "
                   <> (cs $ show publicNodeTypes)
    else do
      folderToCheck <- getNode nId
      if hasNodeType folderToCheck NodeFolderPublic
         then insertDB ([NodeNode nId n Nothing Nothing] :: [NodeNode])
         else errorWith "[G.D.A.S.shareNodeWith] Can share NodeWith NodeFolderPublic only"

shareNodeWith _ _ = errorWith "[G.D.A.S.shareNodeWith] Not implemented for this NodeType"

------------------------------------------------------------------------
getFolderId :: HasNodeError err => User -> NodeType -> Cmd err NodeId
getFolderId u nt = do
  rootId <- getRootId u
  s <- getNodesWith rootId HyperdataAny (Just nt) Nothing Nothing
  case head s of
    Nothing -> errorWith "[G.D.A.S.getFolderId] No folder shared found"
    Just  f -> pure (_node_id f)

------------------------------------------------------------------------
type TeamId = NodeId

delFolderTeam :: HasNodeError err => User -> TeamId -> Cmd err Int
delFolderTeam u nId = do
  folderSharedId <- getFolderId u NodeFolderShared
  deleteNodeNode folderSharedId nId


unPublish :: HasNodeError err
          => ParentId -> NodeId
          -> Cmd err Int
unPublish p n = deleteNodeNode p n