src/Gargantext/API/GraphQL.hs

   1 {-# OPTIONS_GHC -fprint-potential-instances #-}
   2
   3 {-# LANGUAGE DeriveAnyClass #-}
   4 {-# LANGUAGE DuplicateRecordFields #-}  -- permit duplications for field names in multiple constructors
   5 {-# LANGUAGE KindSignatures #-}  -- for use of Endpoint (name :: Symbol)
   6 {-# LANGUAGE PartialTypeSignatures #-}  -- to automatically use suggested type hole signatures during compilation
   7 {-# LANGUAGE TypeOperators #-}
   8
   9 module Gargantext.API.GraphQL where
  10
  11 import Data.ByteString.Lazy.Char8
  12   ( ByteString
  13   )
  14 import Data.Map.Strict (Map)
  15 import Data.Morpheus
  16   ( App
  17   , deriveApp )
  18 import Data.Morpheus.Server
  19   ( httpPlayground
  20   )
  21 import Data.Morpheus.Subscriptions
  22   ( Event (..)
  23   , Hashable
  24   , httpPubApp
  25   )
  26 import Data.Morpheus.Types
  27   ( GQLRequest
  28   , GQLResponse
  29   , GQLType
  30   , RootResolver(..)
  31   , Undefined(..)
  32   )
  33 import Data.Proxy
  34 import Gargantext.API.Admin.Auth.Types (AuthenticatedUser)
  35 import Gargantext.API.Admin.Orchestrator.Types (JobLog)
  36 import Gargantext.API.Prelude (HasJobEnv')
  37 import qualified Gargantext.API.GraphQL.Annuaire as GQLA
  38 import qualified Gargantext.API.GraphQL.AsyncTask as GQLAT
  39 import qualified Gargantext.API.GraphQL.Context as GQLCTX
  40 import qualified Gargantext.API.GraphQL.IMT as GQLIMT
  41 import qualified Gargantext.API.GraphQL.Node as GQLNode
  42 import qualified Gargantext.API.GraphQL.User as GQLUser
  43 import qualified Gargantext.API.GraphQL.UserInfo as GQLUserInfo
  44 import qualified Gargantext.API.GraphQL.TreeFirstLevel as GQLTree
  45 import qualified Gargantext.API.GraphQL.Team as GQLTeam
  46 import Gargantext.API.Prelude (GargM, GargError)
  47 import Gargantext.API.Types
  48 import Gargantext.Core.Mail.Types (HasMail)
  49 import Gargantext.Database.Prelude (HasConnectionPool, HasConfig)
  50 import Gargantext.Prelude
  51 import GHC.Generics (Generic)
  52 import Servant
  53   ( (:<|>) (..)
  54   , (:>)
  55   , Get
  56   , JSON
  57   , Post
  58   , ReqBody
  59   ,  ServerT
  60   )
  61 import qualified Servant.Auth as SA
  62 import qualified Servant.Auth.Server as SAS
  63 import Gargantext.API.Admin.Types (HasSettings)
  64
  65
  66 -- | Represents possible GraphQL queries.
  67 data Query m
  68   = Query
  69     { annuaire_contacts   :: GQLA.AnnuaireContactArgs -> m [GQLA.AnnuaireContact]
  70     , contexts            :: GQLCTX.NodeContextArgs -> m [GQLCTX.NodeContextGQL]
  71     , contexts_for_ngrams :: GQLCTX.ContextsForNgramsArgs -> m [GQLCTX.ContextGQL]
  72     , imt_schools         :: GQLIMT.SchoolsArgs -> m [GQLIMT.School]
  73     , job_logs            :: GQLAT.JobLogArgs -> m (Map Int JobLog)
  74     , nodes               :: GQLNode.NodeArgs -> m [GQLNode.Node]
  75     , node_parent         :: GQLNode.NodeParentArgs -> m [GQLNode.Node]
  76     , user_infos          :: GQLUserInfo.UserInfoArgs -> m [GQLUserInfo.UserInfo]
  77     , users               :: GQLUser.UserArgs -> m [GQLUser.User m]
  78     , tree                :: GQLTree.TreeArgs -> m (GQLTree.TreeFirstLevel m)
  79     , team                :: GQLTeam.TeamArgs -> m GQLTeam.Team
  80     } deriving (Generic, GQLType)
  81
  82 data Mutation m
  83   = Mutation
  84     { update_user_info       :: GQLUserInfo.UserInfoMArgs -> m Int
  85     , delete_team_membership :: GQLTeam.TeamDeleteMArgs -> m [Int]
  86     , update_node_context_category :: GQLCTX.NodeContextCategoryMArgs -> m [Int]
  87     } deriving (Generic, GQLType)
  88
  89 -- | Possible GraphQL Events, i.e. here we describe how we will
  90 -- manipulate the data.
  91 type EVENT m = Event Channel (Contet m)
  92
  93 -- | Channels are possible actions to call when manipulating the data.
  94 data Channel
  95   = Update
  96   | New
  97   deriving (Eq, Show, Generic, Hashable)
  98
  99 -- | This type describes what data we will operate on.
 100 data Contet m
 101   = UserContet [GQLUser.User m]
 102   | UserInfoContet [GQLUserInfo.UserInfo]
 103
 104 -- | The main GraphQL resolver: how queries, mutations and
 105 -- subscriptions are handled.
 106 rootResolver
 107   :: (HasConnectionPool env, HasConfig env, HasMail env, HasJobEnv' env, HasSettings env)
 108   => RootResolver (GargM env GargError) e Query Mutation Undefined
 109 rootResolver =
 110   RootResolver
 111     { queryResolver = Query { annuaire_contacts   = GQLA.resolveAnnuaireContacts
 112                             , contexts            = GQLCTX.resolveNodeContext
 113                             , contexts_for_ngrams = GQLCTX.resolveContextsForNgrams
 114                             , imt_schools         = GQLIMT.resolveSchools
 115                             , job_logs            = GQLAT.resolveJobLogs
 116                             , nodes               = GQLNode.resolveNodes
 117                             , node_parent         = GQLNode.resolveNodeParent
 118                             , user_infos          = GQLUserInfo.resolveUserInfos
 119                             , users               = GQLUser.resolveUsers
 120                             , tree                = GQLTree.resolveTree
 121                             , team                = GQLTeam.resolveTeam }
 122     , mutationResolver = Mutation { update_user_info       = GQLUserInfo.updateUserInfo
 123                                   , delete_team_membership = GQLTeam.deleteTeamMembership
 124                                   , update_node_context_category = GQLCTX.updateNodeContextCategory }
 125     , subscriptionResolver = Undefined }
 126
 127 -- | Main GraphQL "app".
 128 app
 129   :: (Typeable env, HasConnectionPool env, HasConfig env, HasMail env, HasJobEnv' env, HasSettings env)
 130   => App (EVENT (GargM env GargError)) (GargM env GargError)
 131 app = deriveApp rootResolver
 132
 133 ----------------------------------------------
 134
 135 -- Now for some boilerplate to integrate the above GraphQL app with
 136 -- servant.
 137
 138 -- | Servant route for the app we defined above.
 139 type GQAPI = ReqBody '[JSON] GQLRequest :> Post '[JSON] GQLResponse
 140 -- type Schema = "schema" :> Get '[PlainText] Text
 141 -- | Servant route for the playground.
 142 type Playground = Get '[HTML] ByteString
 143 -- type API' (name :: Symbol) = name :> (GQAPI :<|> Schema :<|> Playground)
 144 -- | Our API consists of `GQAPI` and `Playground`.
 145 type API = SA.Auth '[SA.JWT, SA.Cookie] AuthenticatedUser
 146             :> "gql" :> (GQAPI :<|> Playground)
 147
 148 gqapi :: Proxy API
 149 gqapi = Proxy
 150
 151 -- serveEndpoint ::
 152 --   ( SubApp ServerApp e
 153 --   , PubApp e
 154 --   ) =>
 155 --   [e -> IO ()] ->
 156 --   App e IO ->
 157 --   Server (API name)
 158 -- serveEndpoint publish app' = (liftIO . httpPubApp publish app') :<|> withSchema app' :<|> pure httpPlayground
 159 --
 160 -- withSchema :: (Applicative f) => App e m -> f Text
 161 -- withSchema = pure . LT.toStrict . decodeUtf8 . render
 162
 163 -- | Implementation of our API.
 164 --api :: Server API
 165 api
 166   :: (Typeable env, HasConnectionPool env, HasConfig env, HasMail env, HasJobEnv' env, HasSettings env)
 167   => ServerT API (GargM env GargError)
 168 api (SAS.Authenticated _auser) = httpPubApp [] app :<|> pure httpPlayground
 169 api _                          = panic "401 in graphql" -- SAS.throwAll (_ServerError # err401)