src/Gargantext/API/Ngrams.hs

   1 {-|
   2 Module      : Gargantext.API.Ngrams
   3 Description : Server API
   4 Copyright   : (c) CNRS, 2017-Present
   5 License     : AGPL + CECILL v3
   6 Maintainer  : team@gargantext.org
   7 Stability   : experimental
   8 Portability : POSIX
   9
  10 Ngrams API
  11
  12 -- | TODO
  13 get ngrams filtered by NgramsType
  14 add get
  15
  16 -}
  17
  18 {-# LANGUAGE ConstraintKinds   #-}
  19 {-# LANGUAGE DataKinds         #-}
  20 {-# LANGUAGE DeriveGeneric     #-}
  21 {-# LANGUAGE NoImplicitPrelude #-}
  22 {-# LANGUAGE OverloadedStrings #-}
  23 {-# LANGUAGE ScopedTypeVariables #-}
  24 {-# LANGUAGE TemplateHaskell   #-}
  25 {-# LANGUAGE TypeOperators     #-}
  26 {-# LANGUAGE FlexibleContexts  #-}
  27 {-# LANGUAGE FlexibleInstances #-}
  28 {-# LANGUAGE GeneralizedNewtypeDeriving #-}
  29 {-# LANGUAGE MultiParamTypeClasses #-}
  30 {-# LANGUAGE RankNTypes        #-}
  31 {-# LANGUAGE TypeFamilies      #-}
  32 {-# OPTIONS -fno-warn-orphans #-}
  33
  34 module Gargantext.API.Ngrams
  35   where
  36
  37 -- import Debug.Trace (trace)
  38 import Prelude (Enum, Bounded, Semigroup(..), minBound, maxBound {-, round-}, error)
  39 -- import Gargantext.Database.Schema.User  (UserId)
  40 import Data.Patch.Class (Replace, replace, Action(act), Applicable(..),
  41                          Composable(..), Transformable(..),
  42                          PairPatch(..), Patched, ConflictResolution,
  43                          ConflictResolutionReplace, ours)
  44 import qualified Data.Map.Strict.Patch as PM
  45 import Data.Monoid
  46 import Data.Ord (Down(..))
  47 import Data.Foldable
  48 --import Data.Semigroup
  49 import Data.Set (Set)
  50 import qualified Data.Set as S
  51 import qualified Data.List as List
  52 import Data.Maybe (fromMaybe)
  53 -- import Data.Tuple.Extra (first)
  54 import qualified Data.Map.Strict as Map
  55 import Data.Map.Strict (Map)
  56 import qualified Data.Set as Set
  57 import Control.Category ((>>>))
  58 import Control.Concurrent
  59 import Control.Lens (makeLenses, makePrisms, Getter, Iso', iso, from, (.~), (?=), (#), to, folded, {-withIndex, ifolded,-} view, use, (^.), (^..), (^?), (+~), (%~), (%=), sumOf, at, _Just, Each(..), itraverse_, both, forOf_, (%%~))
  60 import Control.Monad.Error.Class (MonadError)
  61 import Control.Monad.Reader
  62 import Control.Monad.State
  63 import Data.Aeson hiding ((.=))
  64 import Data.Aeson.TH (deriveJSON)
  65 import Data.Either(Either(Left))
  66 -- import Data.Map (lookup)
  67 import qualified Data.HashMap.Strict.InsOrd as InsOrdHashMap
  68 import Data.Swagger hiding (version, patch)
  69 import Data.Text (Text, isInfixOf, count)
  70 import Data.Validity
  71 import GHC.Generics (Generic)
  72 import Gargantext.Core.Utils.Prefix (unPrefix)
  73 -- import Gargantext.Database.Schema.Ngrams (NgramsTypeId, ngramsTypeId, NgramsTableData(..))
  74 import Gargantext.Database.Config (userMaster)
  75 import Gargantext.Database.Metrics.NgramsByNode (getOccByNgramsOnlyFast)
  76 import Gargantext.Database.Schema.Ngrams (NgramsType)
  77 import Gargantext.Database.Types.Node (NodeType(..))
  78 import Gargantext.Database.Utils (fromField', HasConnection)
  79 import Gargantext.Database.Node.Select
  80 import Gargantext.Database.Ngrams
  81 --import Gargantext.Database.Lists (listsWith)
  82 import Gargantext.Database.Schema.Node (HasNodeError)
  83 import Database.PostgreSQL.Simple.FromField (FromField, fromField)
  84 import qualified Gargantext.Database.Schema.Ngrams as Ngrams
  85 -- import Gargantext.Database.Schema.NodeNgram hiding (Action)
  86 import Gargantext.Prelude
  87 -- import Gargantext.Core.Types (ListTypeId, listTypeId)
  88 import Gargantext.Core.Types (ListType(..), NodeId, ListId, DocId, Limit, Offset, HasInvalidError, assertValid)
  89 import Servant hiding (Patch)
  90 import System.FileLock (FileLock)
  91 import Test.QuickCheck (elements)
  92 import Test.QuickCheck.Arbitrary (Arbitrary, arbitrary)
  93
  94 data TODO = TODO
  95   deriving (Generic)
  96
  97 instance ToSchema TODO where
  98 instance ToParamSchema TODO where
  99
 100 ------------------------------------------------------------------------
 101 --data FacetFormat = Table | Chart
 102 data TabType   = Docs     | Terms  | Sources | Authors | Institutes | Trash
 103                | Contacts
 104   deriving (Generic, Enum, Bounded)
 105
 106 instance FromHttpApiData TabType
 107   where
 108     parseUrlPiece "Docs"       = pure Docs
 109     parseUrlPiece "Terms"      = pure Terms
 110     parseUrlPiece "Sources"    = pure Sources
 111     parseUrlPiece "Institutes" = pure Institutes
 112     parseUrlPiece "Authors"    = pure Authors
 113     parseUrlPiece "Trash"      = pure Trash
 114
 115     parseUrlPiece "Contacts"   = pure Contacts
 116
 117     parseUrlPiece _            = Left "Unexpected value of TabType"
 118
 119 instance ToParamSchema   TabType
 120 instance ToJSON    TabType
 121 instance FromJSON  TabType
 122 instance ToSchema  TabType
 123 instance Arbitrary TabType
 124   where
 125     arbitrary = elements [minBound .. maxBound]
 126
 127 newtype MSet a = MSet (Map a ())
 128   deriving (Eq, Ord, Show, Generic, Arbitrary, Semigroup, Monoid)
 129
 130 instance ToJSON a => ToJSON (MSet a) where
 131   toJSON     (MSet m) = toJSON     (Map.keys m)
 132   toEncoding (MSet m) = toEncoding (Map.keys m)
 133
 134 mSetFromSet :: Set a -> MSet a
 135 mSetFromSet = MSet . Map.fromSet (const ())
 136
 137 mSetFromList :: Ord a => [a] -> MSet a
 138 mSetFromList = MSet . Map.fromList . map (\x -> (x, ()))
 139
 140 -- mSetToSet :: Ord a => MSet a -> Set a
 141 -- mSetToSet (MSet a) = Set.fromList ( Map.keys a)
 142 mSetToSet :: Ord a => MSet a -> Set a
 143 mSetToSet = Set.fromList . mSetToList
 144
 145 mSetToList :: MSet a -> [a]
 146 mSetToList (MSet a) = Map.keys a
 147
 148 instance Foldable MSet where
 149   foldMap f (MSet m) = Map.foldMapWithKey (\k _ -> f k) m
 150
 151 instance (Ord a, FromJSON a) => FromJSON (MSet a) where
 152   parseJSON = fmap mSetFromList . parseJSON
 153
 154 instance (ToJSONKey a, ToSchema a) => ToSchema (MSet a) where
 155   -- TODO
 156   declareNamedSchema _ = declareNamedSchema (Proxy :: Proxy TODO)
 157
 158 ------------------------------------------------------------------------
 159 type NgramsTerm = Text
 160
 161 data RootParent = RootParent
 162   { _rp_root   :: NgramsTerm
 163   , _rp_parent :: NgramsTerm
 164   }
 165   deriving (Ord, Eq, Show, Generic)
 166
 167 deriveJSON (unPrefix "_rp_") ''RootParent
 168 makeLenses ''RootParent
 169
 170 data NgramsRepoElement = NgramsRepoElement
 171   { _nre_size        :: Int
 172   , _nre_list        :: ListType
 173 --, _nre_root_parent :: Maybe RootParent
 174   , _nre_root        :: Maybe NgramsTerm
 175   , _nre_parent      :: Maybe NgramsTerm
 176   , _nre_children    :: MSet NgramsTerm
 177   }
 178   deriving (Ord, Eq, Show, Generic)
 179
 180 deriveJSON (unPrefix "_nre_") ''NgramsRepoElement
 181 makeLenses ''NgramsRepoElement
 182
 183 data NgramsElement =
 184      NgramsElement { _ne_ngrams      :: NgramsTerm
 185                    , _ne_size        :: Int
 186                    , _ne_list        :: ListType
 187                    , _ne_occurrences :: Int
 188                    , _ne_root        :: Maybe NgramsTerm
 189                    , _ne_parent      :: Maybe NgramsTerm
 190                    , _ne_children    :: MSet NgramsTerm
 191                    }
 192       deriving (Ord, Eq, Show, Generic)
 193
 194 deriveJSON (unPrefix "_ne_") ''NgramsElement
 195 makeLenses ''NgramsElement
 196
 197 mkNgramsElement :: NgramsTerm -> ListType -> Maybe RootParent -> MSet NgramsTerm -> NgramsElement
 198 mkNgramsElement ngrams list rp children =
 199   NgramsElement ngrams size list 1 (_rp_root <$> rp) (_rp_parent <$> rp) children
 200   where
 201     -- TODO review
 202     size = 1 + count " " ngrams
 203
 204 newNgramsElement :: Maybe ListType -> NgramsTerm -> NgramsElement
 205 newNgramsElement mayList ngrams = mkNgramsElement ngrams (fromMaybe GraphTerm mayList) Nothing mempty
 206
 207 instance ToSchema NgramsElement
 208 instance Arbitrary NgramsElement where
 209   arbitrary = elements [newNgramsElement Nothing "sport"]
 210
 211 ngramsElementToRepo :: NgramsElement -> NgramsRepoElement
 212 ngramsElementToRepo
 213   (NgramsElement { _ne_size = s
 214                  , _ne_list = l
 215                  , _ne_root = r
 216                  , _ne_parent = p
 217                  , _ne_children = c
 218                  }) =
 219   NgramsRepoElement
 220     { _nre_size = s
 221     , _nre_list = l
 222     , _nre_parent = p
 223     , _nre_root   = r
 224     , _nre_children = c
 225     }
 226
 227 ngramsElementFromRepo :: NgramsTerm -> NgramsRepoElement -> NgramsElement
 228 ngramsElementFromRepo
 229   ngrams
 230   (NgramsRepoElement
 231       { _nre_size = s
 232       , _nre_list = l
 233       , _nre_parent = p
 234       , _nre_root = r
 235       , _nre_children = c
 236       }) =
 237   NgramsElement { _ne_size = s
 238                 , _ne_list = l
 239                 , _ne_root = r
 240                 , _ne_parent = p
 241                 , _ne_children = c
 242                 , _ne_ngrams = ngrams
 243                 , _ne_occurrences = panic $ "API.Ngrams._ne_occurrences"
 244                 {-
 245                 -- Here we could use 0 if we want to avoid any `panic`.
 246                 -- It will not happen using getTableNgrams if
 247                 -- getOccByNgramsOnly provides a count of occurrences for
 248                 -- all the ngrams given.
 249                 -}
 250                 }
 251
 252 ------------------------------------------------------------------------
 253 newtype NgramsTable = NgramsTable [NgramsElement]
 254   deriving (Ord, Eq, Generic, ToJSON, FromJSON, Show)
 255
 256 type ListNgrams = NgramsTable
 257
 258 makePrisms ''NgramsTable
 259
 260 -- | Question: why these repetition of Type in this instance
 261 -- may you document it please ?
 262 instance Each NgramsTable NgramsTable NgramsElement NgramsElement where
 263   each = _NgramsTable . each
 264
 265 -- TODO discuss
 266 -- | TODO Check N and Weight
 267 {-
 268 toNgramsElement :: [NgramsTableData] -> [NgramsElement]
 269 toNgramsElement ns = map toNgramsElement' ns
 270     where
 271       toNgramsElement' (NgramsTableData _ p t _ lt w) = NgramsElement t lt' (round w) p' c'
 272         where
 273           p' = case p of
 274                  Nothing -> Nothing
 275                  Just x  -> lookup x mapParent
 276           c' = maybe mempty identity $ lookup t mapChildren
 277           lt' = maybe (panic "API.Ngrams: listypeId") identity lt
 278
 279       mapParent :: Map Int Text
 280       mapParent   = Map.fromListWith (<>) $ map (\(NgramsTableData i _ t _ _ _) -> (i,t)) ns
 281
 282       mapChildren :: Map Text (Set Text)
 283       mapChildren = Map.mapKeys (\i -> (maybe (panic "API.Ngrams.mapChildren: ParentId with no Terms: Impossible") identity $ lookup i mapParent))
 284                   $ Map.fromListWith (<>)
 285                   $ map (first fromJust)
 286                   $ filter (isJust . fst)
 287                   $ map (\(NgramsTableData _ p t _ _ _) -> (p, Set.singleton t)) ns
 288 -}
 289
 290 mockTable :: NgramsTable
 291 mockTable = NgramsTable
 292   [ mkNgramsElement "animal"  GraphTerm      Nothing       (mSetFromList ["dog", "cat"])
 293   , mkNgramsElement "cat"     GraphTerm     (rp "animal")  mempty
 294   , mkNgramsElement "cats"    StopTerm       Nothing       mempty
 295   , mkNgramsElement "dog"     GraphTerm     (rp "animal")  (mSetFromList ["dogs"])
 296   , mkNgramsElement "dogs"    StopTerm      (rp "dog")     mempty
 297   , mkNgramsElement "fox"     GraphTerm      Nothing       mempty
 298   , mkNgramsElement "object"  CandidateTerm  Nothing       mempty
 299   , mkNgramsElement "nothing" StopTerm       Nothing       mempty
 300   , mkNgramsElement "organic" GraphTerm      Nothing       (mSetFromList ["flower"])
 301   , mkNgramsElement "flower"  GraphTerm     (rp "organic") mempty
 302   , mkNgramsElement "moon"    CandidateTerm  Nothing       mempty
 303   , mkNgramsElement "sky"     StopTerm       Nothing       mempty
 304   ]
 305   where
 306     rp n = Just $ RootParent n n
 307
 308 instance Arbitrary NgramsTable where
 309   arbitrary = pure mockTable
 310
 311 instance ToSchema NgramsTable
 312
 313 ------------------------------------------------------------------------
 314 type NgramsTableMap = Map NgramsTerm NgramsRepoElement
 315
 316 ------------------------------------------------------------------------
 317 -- On the Client side:
 318 --data Action = InGroup     NgramsId NgramsId
 319 --            | OutGroup    NgramsId NgramsId
 320 --            | SetListType NgramsId ListType
 321
 322 data PatchSet a = PatchSet
 323   { _rem :: Set a
 324   , _add :: Set a
 325   }
 326   deriving (Eq, Ord, Show, Generic)
 327
 328 makeLenses ''PatchSet
 329 makePrisms ''PatchSet
 330
 331 instance ToJSON a => ToJSON (PatchSet a) where
 332   toJSON     = genericToJSON     $ unPrefix "_"
 333   toEncoding = genericToEncoding $ unPrefix "_"
 334
 335 instance (Ord a, FromJSON a) => FromJSON (PatchSet a) where
 336   parseJSON = genericParseJSON $ unPrefix "_"
 337
 338 {-
 339 instance (Ord a, Arbitrary a) => Arbitrary (PatchSet a) where
 340   arbitrary = PatchSet <$> arbitrary <*> arbitrary
 341
 342 type instance Patched (PatchSet a) = Set a
 343
 344 type ConflictResolutionPatchSet a = SimpleConflictResolution' (Set a)
 345 type instance ConflictResolution (PatchSet a) = ConflictResolutionPatchSet a
 346
 347 instance Ord a => Semigroup (PatchSet a) where
 348   p <> q = PatchSet { _rem = (q ^. rem) `Set.difference` (p ^. add) <> p ^. rem
 349                     , _add = (q ^. add) `Set.difference` (p ^. rem) <> p ^. add
 350                     } -- TODO Review
 351
 352 instance Ord a => Monoid (PatchSet a) where
 353   mempty = PatchSet mempty mempty
 354
 355 instance Ord a => Group (PatchSet a) where
 356   invert (PatchSet r a) = PatchSet a r
 357
 358 instance Ord a => Composable (PatchSet a) where
 359   composable _ _ = undefined
 360
 361 instance Ord a => Action (PatchSet a) (Set a) where
 362   act p source = (source `Set.difference` (p ^. rem)) <> p ^. add
 363
 364 instance Applicable (PatchSet a) (Set a) where
 365   applicable _ _ = mempty
 366
 367 instance Ord a => Validity (PatchSet a) where
 368   validate p = check (Set.disjoint (p ^. rem) (p ^. add)) "_rem and _add should be dijoint"
 369
 370 instance Ord a => Transformable (PatchSet a) where
 371   transformable = undefined
 372
 373   conflicts _p _q = undefined
 374
 375   transformWith conflict p q = undefined conflict p q
 376
 377 instance ToSchema a => ToSchema (PatchSet a)
 378 -}
 379
 380 type AddRem = Replace (Maybe ())
 381
 382 remPatch, addPatch :: AddRem
 383 remPatch = replace (Just ()) Nothing
 384 addPatch = replace Nothing (Just ())
 385
 386 isRem :: Replace (Maybe ()) -> Bool
 387 isRem = (== remPatch)
 388
 389 type PatchMap = PM.PatchMap
 390
 391 newtype PatchMSet a = PatchMSet (PatchMap a AddRem)
 392   deriving (Eq, Show, Generic, Validity, Semigroup, Monoid,
 393             Transformable, Composable)
 394
 395 type ConflictResolutionPatchMSet a = a -> ConflictResolutionReplace (Maybe ())
 396 type instance ConflictResolution (PatchMSet a) = ConflictResolutionPatchMSet a
 397
 398 -- TODO this breaks module abstraction
 399 makePrisms ''PM.PatchMap
 400
 401 makePrisms ''PatchMSet
 402
 403 _PatchMSetIso :: Ord a => Iso' (PatchMSet a) (PatchSet a)
 404 _PatchMSetIso = _PatchMSet . _PatchMap . iso f g . from _PatchSet
 405   where
 406     f :: Ord a => Map a (Replace (Maybe ())) -> (Set a, Set a)
 407     f = Map.partition isRem >>> both %~ Map.keysSet
 408
 409     g :: Ord a => (Set a, Set a) -> Map a (Replace (Maybe ()))
 410     g (rems, adds) = Map.fromSet (const remPatch) rems
 411                   <> Map.fromSet (const addPatch) adds
 412
 413 instance Ord a => Action (PatchMSet a) (MSet a) where
 414   act (PatchMSet p) (MSet m) = MSet $ act p m
 415
 416 instance Ord a => Applicable (PatchMSet a) (MSet a) where
 417   applicable (PatchMSet p) (MSet m) = applicable p m
 418
 419 instance (Ord a, ToJSON a) => ToJSON (PatchMSet a) where
 420   toJSON     = toJSON . view _PatchMSetIso
 421   toEncoding = toEncoding . view _PatchMSetIso
 422
 423 instance (Ord a, FromJSON a) => FromJSON (PatchMSet a) where
 424   parseJSON = fmap (_PatchMSetIso #) . parseJSON
 425
 426 instance (Ord a, Arbitrary a) => Arbitrary (PatchMSet a) where
 427   arbitrary = (PatchMSet . PM.fromMap) <$> arbitrary
 428
 429 instance ToSchema a => ToSchema (PatchMSet a) where
 430   -- TODO
 431   declareNamedSchema _ = declareNamedSchema (Proxy :: Proxy TODO)
 432
 433 type instance Patched (PatchMSet a) = MSet a
 434
 435 instance (Eq a, Arbitrary a) => Arbitrary (Replace a) where
 436   arbitrary = uncurry replace <$> arbitrary
 437     -- If they happen to be equal then the patch is Keep.
 438
 439 instance ToSchema a => ToSchema (Replace a) where
 440   declareNamedSchema (_ :: proxy (Replace a)) = do
 441     -- TODO Keep constructor is not supported here.
 442     aSchema <- declareSchemaRef (Proxy :: Proxy a)
 443     return $ NamedSchema (Just "Replace") $ mempty
 444       & type_ .~ SwaggerObject
 445       & properties .~
 446           InsOrdHashMap.fromList
 447           [ ("old", aSchema)
 448           , ("new", aSchema)
 449           ]
 450       & required .~ [ "old", "new" ]
 451
 452 data NgramsPatch =
 453      NgramsPatch { _patch_children :: PatchMSet NgramsTerm
 454                  , _patch_list     :: Replace ListType   -- TODO Map UserId ListType
 455                  }
 456       deriving (Eq, Show, Generic)
 457
 458 deriveJSON (unPrefix "_") ''NgramsPatch
 459 makeLenses ''NgramsPatch
 460
 461 instance ToSchema  NgramsPatch
 462
 463 instance Arbitrary NgramsPatch where
 464   arbitrary = NgramsPatch <$> arbitrary <*> (replace <$> arbitrary <*> arbitrary)
 465
 466 type NgramsPatchIso = PairPatch (PatchMSet NgramsTerm) (Replace ListType)
 467
 468 _NgramsPatch :: Iso' NgramsPatch NgramsPatchIso
 469 _NgramsPatch = iso (\(NgramsPatch c l) -> c :*: l) (\(c :*: l) -> NgramsPatch c l)
 470
 471 instance Semigroup NgramsPatch where
 472   p <> q = _NgramsPatch # (p ^. _NgramsPatch <> q ^. _NgramsPatch)
 473
 474 instance Monoid NgramsPatch where
 475   mempty = _NgramsPatch # mempty
 476
 477 instance Validity NgramsPatch where
 478   validate p = p ^. _NgramsPatch . to validate
 479
 480 instance Transformable NgramsPatch where
 481   transformable p q = transformable (p ^. _NgramsPatch) (q ^. _NgramsPatch)
 482
 483   conflicts p q = conflicts (p ^. _NgramsPatch) (q ^. _NgramsPatch)
 484
 485   transformWith conflict p q = (_NgramsPatch # p', _NgramsPatch # q')
 486     where
 487       (p', q') = transformWith conflict (p ^. _NgramsPatch) (q ^. _NgramsPatch)
 488
 489 type ConflictResolutionNgramsPatch =
 490   ( ConflictResolutionPatchMSet NgramsTerm
 491   , ConflictResolutionReplace ListType
 492   )
 493 type instance ConflictResolution NgramsPatch =
 494   ConflictResolutionNgramsPatch
 495
 496 type PatchedNgramsPatch = (Set NgramsTerm, ListType)
 497   -- ~ Patched NgramsPatchIso
 498 type instance Patched NgramsPatch = PatchedNgramsPatch
 499
 500 instance Applicable NgramsPatch (Maybe NgramsRepoElement) where
 501   applicable p Nothing   = check (p == mempty) "NgramsPatch should be empty here"
 502   applicable p (Just nre) =
 503     applicable (p ^. patch_children) (nre ^. nre_children) <>
 504     applicable (p ^. patch_list)     (nre ^. nre_list)
 505
 506 instance Action NgramsPatch NgramsRepoElement where
 507   act p = (nre_children %~ act (p ^. patch_children))
 508         . (nre_list     %~ act (p ^. patch_list))
 509
 510 instance Action NgramsPatch (Maybe NgramsRepoElement) where
 511   act = fmap . act
 512
 513 newtype NgramsTablePatch = NgramsTablePatch (PatchMap NgramsTerm NgramsPatch)
 514   deriving (Eq, Show, Generic, ToJSON, FromJSON, Semigroup, Monoid, Validity, Transformable)
 515
 516 instance FromField NgramsTablePatch
 517   where
 518     fromField = fromField'
 519
 520 instance FromField (PatchMap NgramsType (PatchMap NodeId NgramsTablePatch))
 521   where
 522     fromField = fromField'
 523
 524 --instance (Ord k, Action pv (Maybe v)) => Action (PatchMap k pv) (Map k v) where
 525 --
 526 type instance ConflictResolution NgramsTablePatch =
 527   NgramsTerm -> ConflictResolutionNgramsPatch
 528
 529 type PatchedNgramsTablePatch = Map NgramsTerm PatchedNgramsPatch
 530   -- ~ Patched (PatchMap NgramsTerm NgramsPatch)
 531 type instance Patched NgramsTablePatch = PatchedNgramsTablePatch
 532
 533 makePrisms ''NgramsTablePatch
 534 instance ToSchema  (PatchMap NgramsTerm NgramsPatch)
 535 instance ToSchema  NgramsTablePatch
 536
 537 instance Applicable NgramsTablePatch (Maybe NgramsTableMap) where
 538   applicable p = applicable (p ^. _NgramsTablePatch)
 539
 540 instance Action NgramsTablePatch (Maybe NgramsTableMap) where
 541   act p =
 542     fmap (execState (reParentNgramsTablePatch p)) .
 543     act (p ^. _NgramsTablePatch)
 544
 545 instance Arbitrary NgramsTablePatch where
 546   arbitrary = NgramsTablePatch <$> PM.fromMap <$> arbitrary
 547
 548 -- Should it be less than an Lens' to preserve PatchMap's abstraction.
 549 -- ntp_ngrams_patches :: Lens' NgramsTablePatch (Map NgramsTerm NgramsPatch)
 550 -- ntp_ngrams_patches = _NgramsTablePatch .  undefined
 551
 552 type ReParent a = forall m. MonadState NgramsTableMap m => a -> m ()
 553
 554 reRootChildren :: NgramsTerm -> ReParent NgramsTerm
 555 reRootChildren root ngram = do
 556   nre <- use $ at ngram
 557   forOf_ (_Just . nre_children . folded) nre $ \child -> do
 558     at child . _Just . nre_root ?= root
 559     reRootChildren root child
 560
 561 reParent :: Maybe RootParent -> ReParent NgramsTerm
 562 reParent rp child = do
 563   at child . _Just %= ( (nre_parent .~ (_rp_parent <$> rp))
 564                       . (nre_root   .~ (_rp_root   <$> rp))
 565                       )
 566   reRootChildren (fromMaybe child (rp ^? _Just . rp_root)) child
 567
 568 reParentAddRem :: RootParent -> NgramsTerm -> ReParent AddRem
 569 reParentAddRem rp child p =
 570   reParent (if isRem p then Nothing else Just rp) child
 571
 572 reParentNgramsPatch :: NgramsTerm -> ReParent NgramsPatch
 573 reParentNgramsPatch parent ngramsPatch = do
 574   root_of_parent <- use (at parent . _Just . nre_root)
 575   let
 576     root = fromMaybe parent root_of_parent
 577     rp   = RootParent { _rp_root = root, _rp_parent = parent }
 578   itraverse_ (reParentAddRem rp) (ngramsPatch ^. patch_children . _PatchMSet . _PatchMap)
 579   -- TODO FoldableWithIndex/TraversableWithIndex for PatchMap
 580
 581 reParentNgramsTablePatch :: ReParent NgramsTablePatch
 582 reParentNgramsTablePatch p = itraverse_ reParentNgramsPatch (p ^. _NgramsTablePatch. _PatchMap)
 583   -- TODO FoldableWithIndex/TraversableWithIndex for PatchMap
 584
 585 ------------------------------------------------------------------------
 586 ------------------------------------------------------------------------
 587 type Version = Int
 588
 589 data Versioned a = Versioned
 590   { _v_version :: Version
 591   , _v_data    :: a
 592   }
 593   deriving (Generic, Show)
 594 deriveJSON (unPrefix "_v_") ''Versioned
 595 makeLenses ''Versioned
 596 instance ToSchema a => ToSchema (Versioned a)
 597 instance Arbitrary a => Arbitrary (Versioned a) where
 598   arbitrary = Versioned 1 <$> arbitrary -- TODO 1 is constant so far
 599
 600 {-
 601 -- TODO sequencs of modifications (Patchs)
 602 type NgramsIdPatch = Patch NgramsId NgramsPatch
 603
 604 ngramsPatch :: Int -> NgramsPatch
 605 ngramsPatch n = NgramsPatch (DM.fromList [(1, StopTerm)]) (Set.fromList [n]) Set.empty
 606
 607 toEdit :: NgramsId -> NgramsPatch -> Edit NgramsId NgramsPatch
 608 toEdit n p = Edit n p
 609 ngramsIdPatch :: Patch NgramsId NgramsPatch
 610 ngramsIdPatch = fromList $ catMaybes $ reverse [ replace (1::NgramsId) (Just $ ngramsPatch 1) Nothing
 611                                        , replace (1::NgramsId) Nothing (Just $ ngramsPatch 2)
 612                                        , replace (2::NgramsId) Nothing (Just $ ngramsPatch 2)
 613                                        ]
 614
 615 -- applyPatchBack :: Patch -> IO Patch
 616 -- isEmptyPatch = Map.all (\x -> Set.isEmpty (add_children x) && Set.isEmpty ... )
 617 -}
 618 ------------------------------------------------------------------------
 619 ------------------------------------------------------------------------
 620 ------------------------------------------------------------------------
 621
 622 {-
 623 -- TODO: Replace.old is ignored which means that if the current list
 624 -- `GraphTerm` and that the patch is `Replace CandidateTerm StopTerm` then
 625 -- the list is going to be `StopTerm` while it should keep `GraphTerm`.
 626 -- However this should not happen in non conflicting situations.
 627 mkListsUpdate :: NgramsType -> NgramsTablePatch -> [(NgramsTypeId, NgramsTerm, ListTypeId)]
 628 mkListsUpdate nt patches =
 629   [ (ngramsTypeId nt, ng, listTypeId lt)
 630   | (ng, patch) <- patches ^.. ntp_ngrams_patches . ifolded . withIndex
 631   , lt <- patch ^.. patch_list . new
 632   ]
 633
 634 mkChildrenGroups :: (PatchSet NgramsTerm -> Set NgramsTerm)
 635                  -> NgramsType
 636                  -> NgramsTablePatch
 637                  -> [(NgramsTypeId, NgramsParent, NgramsChild)]
 638 mkChildrenGroups addOrRem nt patches =
 639   [ (ngramsTypeId nt, parent, child)
 640   | (parent, patch) <- patches ^.. ntp_ngrams_patches . ifolded . withIndex
 641   , child <- patch ^.. patch_children . to addOrRem . folded
 642   ]
 643 -}
 644
 645 ngramsTypeFromTabType :: TabType -> NgramsType
 646 ngramsTypeFromTabType tabType =
 647   let lieu = "Garg.API.Ngrams: " :: Text in
 648     case tabType of
 649       Sources    -> Ngrams.Sources
 650       Authors    -> Ngrams.Authors
 651       Institutes -> Ngrams.Institutes
 652       Terms      -> Ngrams.NgramsTerms
 653       _          -> panic $ lieu <> "No Ngrams for this tab"
 654       -- TODO: This `panic` would disapear with custom NgramsType.
 655
 656 ------------------------------------------------------------------------
 657 data Repo s p = Repo
 658   { _r_version :: Version
 659   , _r_state   :: s
 660   , _r_history :: [p]
 661     -- first patch in the list is the most recent
 662   }
 663   deriving (Generic)
 664
 665 instance (FromJSON s, FromJSON p) => FromJSON (Repo s p) where
 666   parseJSON = genericParseJSON $ unPrefix "_r_"
 667
 668 instance (ToJSON s, ToJSON p) => ToJSON (Repo s p) where
 669   toJSON     = genericToJSON     $ unPrefix "_r_"
 670   toEncoding = genericToEncoding $ unPrefix "_r_"
 671
 672 makeLenses ''Repo
 673
 674 initRepo :: Monoid s => Repo s p
 675 initRepo = Repo 1 mempty []
 676
 677 type NgramsRepo       = Repo NgramsState NgramsStatePatch
 678 type NgramsState      = Map NgramsType (Map NodeId NgramsTableMap)
 679 type NgramsStatePatch = PatchMap NgramsType (PatchMap NodeId NgramsTablePatch)
 680
 681 initMockRepo :: NgramsRepo
 682 initMockRepo = Repo 1 s []
 683   where
 684     s = Map.singleton Ngrams.NgramsTerms
 685       $ Map.singleton 47254
 686       $ Map.fromList
 687       [ (n ^. ne_ngrams, ngramsElementToRepo n) | n <- mockTable ^. _NgramsTable ]
 688
 689 data RepoEnv = RepoEnv
 690   { _renv_var   :: !(MVar NgramsRepo)
 691   , _renv_saver :: !(IO ())
 692   , _renv_lock  :: !FileLock
 693   }
 694   deriving (Generic)
 695
 696 makeLenses ''RepoEnv
 697
 698 class HasRepoVar env where
 699   repoVar :: Getter env (MVar NgramsRepo)
 700
 701 instance HasRepoVar (MVar NgramsRepo) where
 702   repoVar = identity
 703
 704 class HasRepoSaver env where
 705   repoSaver :: Getter env (IO ())
 706
 707 class (HasRepoVar env, HasRepoSaver env) => HasRepo env where
 708   repoEnv :: Getter env RepoEnv
 709
 710 instance HasRepo RepoEnv where
 711   repoEnv = identity
 712
 713 instance HasRepoVar RepoEnv where
 714   repoVar = renv_var
 715
 716 instance HasRepoSaver RepoEnv where
 717   repoSaver = renv_saver
 718
 719 type RepoCmdM env err m =
 720   ( MonadReader env m
 721   , MonadError err m
 722   , MonadIO m
 723   , HasRepo env
 724   )
 725 ------------------------------------------------------------------------
 726
 727 saveRepo :: ( MonadReader env m, MonadIO m, HasRepoSaver env )
 728          => m ()
 729 saveRepo = liftIO =<< view repoSaver
 730
 731 listTypeConflictResolution :: ListType -> ListType -> ListType
 732 listTypeConflictResolution _ _ = undefined -- TODO Use Map User ListType
 733
 734 ngramsStatePatchConflictResolution
 735   :: NgramsType -> NodeId -> NgramsTerm
 736   -> ConflictResolutionNgramsPatch
 737 ngramsStatePatchConflictResolution _ngramsType _nodeId _ngramsTerm
 738   = (const ours, ours)
 739   -- undefined {- TODO think this through -}, listTypeConflictResolution)
 740
 741 -- Current state:
 742 --   Insertions are not considered as patches,
 743 --   they do not extend history,
 744 --   they do not bump version.
 745 insertNewOnly :: a -> Maybe b -> a
 746 insertNewOnly m = maybe m (const $ error "insertNewOnly: impossible")
 747   -- TODO error handling
 748
 749 something :: Monoid a => Maybe a -> a
 750 something Nothing  = mempty
 751 something (Just a) = a
 752
 753 {- unused
 754 -- TODO refactor with putListNgrams
 755 copyListNgrams :: RepoCmdM env err m
 756                => NodeId -> NodeId -> NgramsType
 757                -> m ()
 758 copyListNgrams srcListId dstListId ngramsType = do
 759   var <- view repoVar
 760   liftIO $ modifyMVar_ var $
 761     pure . (r_state . at ngramsType %~ (Just . f . something))
 762   saveRepo
 763   where
 764     f :: Map NodeId NgramsTableMap -> Map NodeId NgramsTableMap
 765     f m = m & at dstListId %~ insertNewOnly (m ^. at srcListId)
 766
 767 -- TODO refactor with putListNgrams
 768 -- The list must be non-empty!
 769 -- The added ngrams must be non-existent!
 770 addListNgrams :: RepoCmdM env err m
 771               => NodeId -> NgramsType
 772               -> [NgramsElement] -> m ()
 773 addListNgrams listId ngramsType nes = do
 774   var <- view repoVar
 775   liftIO $ modifyMVar_ var $
 776     pure . (r_state . at ngramsType . _Just . at listId . _Just <>~ m)
 777   saveRepo
 778   where
 779     m = Map.fromList $ (\n -> (n ^. ne_ngrams, n)) <$> nes
 780 -}
 781
 782 -- If the given list of ngrams elements contains ngrams already in
 783 -- the repo, they will be ignored.
 784 putListNgrams :: RepoCmdM env err m
 785               => NodeId -> NgramsType
 786               -> [NgramsElement] -> m ()
 787 putListNgrams _ _ [] = pure ()
 788 putListNgrams listId ngramsType nes = do
 789   -- printDebug "putListNgrams" (length nes)
 790   var <- view repoVar
 791   liftIO $ modifyMVar_ var $
 792     pure . (r_state . at ngramsType %~ (Just . (at listId %~ (Just . (<> m) . something)) . something))
 793   saveRepo
 794   where
 795     m = Map.fromList $ (\n -> (n ^. ne_ngrams, ngramsElementToRepo n)) <$> nes
 796
 797 tableNgramsPost :: RepoCmdM env err m => TabType -> NodeId -> Maybe ListType -> [NgramsTerm] -> m ()
 798 tableNgramsPost tabType listId mayList =
 799   putListNgrams listId (ngramsTypeFromTabType tabType) . fmap (newNgramsElement mayList)
 800
 801 -- Apply the given patch to the DB and returns the patch to be applied on the
 802 -- client.
 803 tableNgramsPut :: (HasInvalidError err, RepoCmdM env err m)
 804                  => TabType -> ListId
 805                  -> Versioned NgramsTablePatch
 806                  -> m (Versioned NgramsTablePatch)
 807 tableNgramsPut tabType listId (Versioned p_version p_table)
 808   | p_table == mempty = do
 809       let ngramsType        = ngramsTypeFromTabType tabType
 810
 811       var <- view repoVar
 812       r <- liftIO $ readMVar var
 813
 814       let
 815         q = mconcat $ take (r ^. r_version - p_version) (r ^. r_history)
 816         q_table = q ^. _PatchMap . at ngramsType . _Just . _PatchMap . at listId . _Just
 817
 818       pure (Versioned (r ^. r_version) q_table)
 819
 820   | otherwise         = do
 821       let ngramsType        = ngramsTypeFromTabType tabType
 822           (p0, p0_validity) = PM.singleton listId p_table
 823           (p, p_validity)   = PM.singleton ngramsType p0
 824
 825       assertValid p0_validity
 826       assertValid p_validity
 827
 828       var <- view repoVar
 829       vq' <- liftIO $ modifyMVar var $ \r -> do
 830         let
 831           q = mconcat $ take (r ^. r_version - p_version) (r ^. r_history)
 832           (p', q') = transformWith ngramsStatePatchConflictResolution p q
 833           r' = r & r_version +~ 1
 834                 & r_state   %~ act p'
 835                 & r_history %~ (p' :)
 836           q'_table = q' ^. _PatchMap . at ngramsType . _Just . _PatchMap . at listId . _Just
 837         {-
 838         -- Ideally we would like to check these properties. However:
 839         -- * They should be checked only to debug the code. The client data
 840         --   should be able to trigger these.
 841         -- * What kind of error should they throw (we are in IO here)?
 842         -- * Should we keep modifyMVar?
 843         -- * Should we throw the validation in an Exception, catch it around
 844         --   modifyMVar and throw it back as an Error?
 845         assertValid $ transformable p q
 846         assertValid $ applicable p' (r ^. r_state)
 847         -}
 848         pure (r', Versioned (r' ^. r_version) q'_table)
 849
 850       saveRepo
 851       pure vq'
 852
 853 mergeNgramsElement :: NgramsRepoElement -> NgramsRepoElement -> NgramsRepoElement
 854 mergeNgramsElement _neOld neNew = neNew
 855   {-
 856   { _ne_list        :: ListType
 857   If we merge the parents/children we can potentially create cycles!
 858   , _ne_parent      :: Maybe NgramsTerm
 859   , _ne_children    :: MSet NgramsTerm
 860   }
 861   -}
 862
 863 getNgramsTableMap :: RepoCmdM env err m
 864                   => NodeId -> NgramsType -> m (Versioned NgramsTableMap)
 865 getNgramsTableMap nodeId ngramsType = do
 866   v    <- view repoVar
 867   repo <- liftIO $ readMVar v
 868   pure $ Versioned (repo ^. r_version)
 869                    (repo ^. r_state . at ngramsType . _Just . at nodeId . _Just)
 870
 871 type MinSize = Int
 872 type MaxSize = Int
 873
 874 -- | TODO Errors management
 875 --  TODO: polymorphic for Annuaire or Corpus or ...
 876 -- | Table of Ngrams is a ListNgrams formatted (sorted and/or cut).
 877 -- TODO: should take only one ListId
 878
 879
 880
 881
 882 getTableNgrams :: forall env err m.
 883                   (RepoCmdM env err m, HasNodeError err, HasConnection env)
 884                => NodeType -> NodeId -> TabType
 885                -> ListId -> Limit -> Maybe Offset
 886                -> Maybe ListType
 887                -> Maybe MinSize -> Maybe MaxSize
 888                -> Maybe OrderBy
 889                -> (NgramsTerm -> Bool)
 890                -> m (Versioned NgramsTable)
 891 getTableNgrams _nType nId tabType listId limit_ offset
 892                listType minSize maxSize orderBy searchQuery = do
 893
 894   _lIds <- selectNodesWithUsername NodeList userMaster
 895   let
 896     ngramsType = ngramsTypeFromTabType tabType
 897     offset'  = maybe 0 identity offset
 898     listType' = maybe (const True) (==) listType
 899     minSize'  = maybe (const True) (<=) minSize
 900     maxSize'  = maybe (const True) (>=) maxSize
 901
 902     selected_node n = minSize'     s
 903                    && maxSize'     s
 904                    && searchQuery  (n ^. ne_ngrams)
 905                    && listType'    (n ^. ne_list)
 906       where
 907         s = n ^. ne_size
 908
 909     selected_inner roots n = maybe False (`Set.member` roots) (n ^. ne_root)
 910
 911     ---------------------------------------
 912     sortOnOrder Nothing = identity
 913     sortOnOrder (Just TermAsc)   = List.sortOn $ view ne_ngrams
 914     sortOnOrder (Just TermDesc)  = List.sortOn $ Down . view ne_ngrams
 915     sortOnOrder (Just ScoreAsc)  = List.sortOn $ view ne_occurrences
 916     sortOnOrder (Just ScoreDesc) = List.sortOn $ Down . view ne_occurrences
 917
 918     ---------------------------------------
 919     selectAndPaginate :: Map NgramsTerm NgramsElement -> [NgramsElement]
 920     selectAndPaginate tableMap = roots <> inners
 921       where
 922         list = tableMap ^.. each
 923         rootOf ne = maybe ne (\r -> fromMaybe (panic "getTableNgrams: invalid root") (tableMap ^. at r))
 924                              (ne ^. ne_root)
 925         selected_nodes = list & take limit_
 926                               . drop offset'
 927                               . filter selected_node
 928                               . sortOnOrder orderBy
 929         roots = rootOf <$> selected_nodes
 930         rootsSet = Set.fromList (_ne_ngrams <$> roots)
 931         inners = list & filter (selected_inner rootsSet)
 932
 933     ---------------------------------------
 934     setScores :: forall t. Each t t NgramsElement NgramsElement => Bool -> t -> m t
 935     setScores False table = pure table
 936     setScores True  table = do
 937       let ngrams_terms = (table ^.. each . ne_ngrams)
 938       occurrences <- getOccByNgramsOnlyFast nId
 939                                             ngramsType
 940                                             ngrams_terms
 941       {-
 942       occurrences <- getOccByNgramsOnlySlow nType nId
 943                                             (lIds <> [listId])
 944                                             ngramsType
 945                                             ngrams_terms
 946     -}
 947       let
 948         setOcc ne = ne & ne_occurrences .~ sumOf (at (ne ^. ne_ngrams) . _Just) occurrences
 949
 950       pure $ table & each %~ setOcc
 951     ---------------------------------------
 952
 953   -- lists <- catMaybes <$> listsWith userMaster
 954   -- trace (show lists) $
 955   -- getNgramsTableMap ({-lists <>-} listIds) ngramsType
 956
 957   let nSco = needsScores orderBy
 958   tableMap1 <- getNgramsTableMap listId ngramsType
 959   tableMap2 <- tableMap1 & v_data %%~ setScores nSco
 960                                     . Map.mapWithKey ngramsElementFromRepo
 961   tableMap2 & v_data %%~ fmap NgramsTable
 962                        . setScores (not nSco)
 963                        . selectAndPaginate
 964
 965 -- APIs
 966
 967 -- TODO: find a better place for the code above, All APIs stay here
 968 type QueryParamR = QueryParam' '[Required, Strict]
 969
 970
 971 data OrderBy = TermAsc | TermDesc | ScoreAsc | ScoreDesc
 972              deriving (Generic, Enum, Bounded, Read, Show)
 973
 974 instance FromHttpApiData OrderBy
 975   where
 976     parseUrlPiece "TermAsc"   = pure TermAsc
 977     parseUrlPiece "TermDesc"  = pure TermDesc
 978     parseUrlPiece "ScoreAsc"  = pure ScoreAsc
 979     parseUrlPiece "ScoreDesc" = pure ScoreDesc
 980     parseUrlPiece _           = Left "Unexpected value of OrderBy"
 981
 982 instance ToParamSchema OrderBy
 983 instance FromJSON  OrderBy
 984 instance ToJSON    OrderBy
 985 instance ToSchema  OrderBy
 986 instance Arbitrary OrderBy
 987   where
 988     arbitrary = elements [minBound..maxBound]
 989
 990 needsScores :: Maybe OrderBy -> Bool
 991 needsScores (Just ScoreAsc)  = True
 992 needsScores (Just ScoreDesc) = True
 993 needsScores _ = False
 994
 995 type TableNgramsApiGet = Summary " Table Ngrams API Get"
 996                       :> QueryParamR "ngramsType"  TabType
 997                       :> QueryParamR "list"        ListId
 998                       :> QueryParamR "limit"       Limit
 999                       :> QueryParam  "offset"      Offset
1000                       :> QueryParam  "listType"    ListType
1001                       :> QueryParam  "minTermSize" MinSize
1002                       :> QueryParam  "maxTermSize" MaxSize
1003                       :> QueryParam  "orderBy"     OrderBy
1004                       :> QueryParam  "search"      Text
1005                       :> Get    '[JSON] (Versioned NgramsTable)
1006
1007 type TableNgramsApiPut = Summary " Table Ngrams API Change"
1008                        :> QueryParamR "ngramsType" TabType
1009                        :> QueryParamR "list"       ListId
1010                        :> ReqBody '[JSON] (Versioned NgramsTablePatch)
1011                        :> Put     '[JSON] (Versioned NgramsTablePatch)
1012
1013 type TableNgramsApiPost = Summary " Table Ngrams API Adds new ngrams"
1014                        :> QueryParamR "ngramsType" TabType
1015                        :> QueryParamR "list"       ListId
1016                        :> QueryParam  "listType"   ListType
1017                        :> ReqBody '[JSON] [NgramsTerm]
1018                        :> Post    '[JSON] ()
1019
1020 type TableNgramsApi =  TableNgramsApiGet
1021                   :<|> TableNgramsApiPut
1022                   :<|> TableNgramsApiPost
1023
1024 getTableNgramsCorpus :: (RepoCmdM env err m, HasNodeError err, HasConnection env)
1025                => NodeId -> TabType
1026                -> ListId -> Limit -> Maybe Offset
1027                -> Maybe ListType
1028                -> Maybe MinSize -> Maybe MaxSize
1029                -> Maybe OrderBy
1030                -> Maybe Text -- full text search
1031                -> m (Versioned NgramsTable)
1032 getTableNgramsCorpus nId tabType listId limit_ offset listType minSize maxSize orderBy mt =
1033   getTableNgrams NodeCorpus nId tabType listId limit_ offset listType minSize maxSize orderBy searchQuery
1034     where
1035       searchQuery = maybe (const True) isInfixOf mt
1036
1037 -- | Text search is deactivated for now for ngrams by doc only
1038 getTableNgramsDoc :: (RepoCmdM env err m, HasNodeError err, HasConnection env)
1039                => DocId -> TabType
1040                -> ListId -> Limit -> Maybe Offset
1041                -> Maybe ListType
1042                -> Maybe MinSize -> Maybe MaxSize
1043                -> Maybe OrderBy
1044                -> Maybe Text -- full text search
1045                -> m (Versioned NgramsTable)
1046 getTableNgramsDoc dId tabType listId limit_ offset listType minSize maxSize orderBy _mt = do
1047   ns <- selectNodesWithUsername NodeList userMaster
1048   let ngramsType = ngramsTypeFromTabType tabType
1049   ngs <- selectNgramsByDoc (ns <> [listId]) dId ngramsType
1050   let searchQuery = flip S.member (S.fromList ngs)
1051   getTableNgrams NodeDocument dId tabType listId limit_ offset listType minSize maxSize orderBy searchQuery
1052
1053
1054
1055
1056
1057 apiNgramsTableCorpus :: ( RepoCmdM env err m
1058                         , HasNodeError err
1059                         , HasInvalidError err
1060                         , HasConnection env
1061                         )
1062                      => NodeId -> ServerT TableNgramsApi m
1063 apiNgramsTableCorpus cId =  getTableNgramsCorpus cId
1064                        :<|> tableNgramsPut
1065                        :<|> tableNgramsPost
1066
1067
1068 apiNgramsTableDoc :: ( RepoCmdM env err m
1069                      , HasNodeError err
1070                      , HasInvalidError err
1071                      , HasConnection env
1072                      )
1073                   => DocId -> ServerT TableNgramsApi m
1074 apiNgramsTableDoc dId =  getTableNgramsDoc dId
1075                     :<|> tableNgramsPut
1076                     :<|> tableNgramsPost
1077                         -- > add new ngrams in database (TODO AD)
1078                         -- > index all the corpus accordingly (TODO AD)
1079