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{-|
Module : Gargantext.API.Ngrams.Tools
Description : Tools to manage Ngrams Elements (from the API)
Copyright : (c) CNRS, 2017-Present
License : AGPL + CECILL v3
Maintainer : team@gargantext.org
Stability : experimental
Portability : POSIX
-}
{-# LANGUAGE TypeFamilies #-}
module Gargantext.API.Ngrams.Tools
where
import Control.Concurrent
import Control.Lens (_Just, (^.), at, view, At, Index, IxValue)
import Control.Monad.Reader
import Data.HashMap.Strict (HashMap)
import Data.Hashable (Hashable)
import Data.Set (Set)
import Data.Validity
import Gargantext.API.Ngrams.Types
import Gargantext.Core.Types (ListType(..), NodeId, ListId)
import Gargantext.Database.Schema.Ngrams (NgramsType)
import Gargantext.Prelude
import qualified Data.HashMap.Strict as HM
import qualified Data.Map.Strict as Map
import qualified Data.Set as Set
mergeNgramsElement :: NgramsRepoElement -> NgramsRepoElement -> NgramsRepoElement
mergeNgramsElement _neOld neNew = neNew
type RootTerm = NgramsTerm
getRepo :: RepoCmdM env err m => m NgramsRepo
getRepo = do
v <- view repoVar
liftBase $ readMVar v
listNgramsFromRepo :: [ListId] -> NgramsType
-> NgramsRepo -> HashMap NgramsTerm NgramsRepoElement
listNgramsFromRepo nodeIds ngramsType repo = ngrams
where
ngramsMap = repo ^. r_state . at ngramsType . _Just
-- TODO HashMap linked
ngrams = HM.fromList $ Map.toList $ Map.unionsWith mergeNgramsElement
[ ngramsMap ^. at nodeId . _Just | nodeId <- nodeIds ]
-- TODO-ACCESS: We want to do the security check before entering here.
-- Add a static capability parameter would be nice.
-- Ideally this is the access to `repoVar` which needs to
-- be properly guarded.
getListNgrams :: RepoCmdM env err m
=> [ListId] -> NgramsType
-> m (HashMap NgramsTerm NgramsRepoElement)
getListNgrams nodeIds ngramsType = listNgramsFromRepo nodeIds ngramsType <$> getRepo
getTermsWith :: (RepoCmdM env err m, Eq a, Hashable a)
=> (NgramsTerm -> a) -> [ListId]
-> NgramsType -> ListType
-> m (HashMap a [a])
getTermsWith f ls ngt lt = HM.fromListWith (<>)
<$> map toTreeWith
<$> HM.toList
<$> HM.filter (\f' -> fst f' == lt)
<$> mapTermListRoot ls ngt
<$> getRepo
where
toTreeWith (t, (_lt, maybeRoot)) = case maybeRoot of
Nothing -> (f t, [])
Just r -> (f r, [f t])
mapTermListRoot :: [ListId]
-> NgramsType
-> NgramsRepo
-> HashMap NgramsTerm (ListType, Maybe NgramsTerm)
mapTermListRoot nodeIds ngramsType repo =
(\nre -> (_nre_list nre, _nre_root nre))
<$> listNgramsFromRepo nodeIds ngramsType repo
filterListWithRootHashMap :: ListType
-> HashMap NgramsTerm (ListType, Maybe NgramsTerm)
-> HashMap NgramsTerm (Maybe RootTerm)
filterListWithRootHashMap lt m = snd <$> HM.filter isMapTerm m
where
isMapTerm (l, maybeRoot) = case maybeRoot of
Nothing -> l == lt
Just r -> case HM.lookup r m of
Nothing -> panic $ "Garg.API.Ngrams.Tools: filterWithRoot, unknown key: " <> unNgramsTerm r
Just (l',_) -> l' == lt
filterListWithRoot :: ListType
-> HashMap NgramsTerm (ListType, Maybe NgramsTerm)
-> HashMap NgramsTerm (Maybe RootTerm)
filterListWithRoot lt m = snd <$> HM.filter isMapTerm m
where
isMapTerm (l, maybeRoot) = case maybeRoot of
Nothing -> l == lt
Just r -> case HM.lookup r m of
Nothing -> panic $ "Garg.API.Ngrams.Tools: filterWithRoot, unknown key: " <> unNgramsTerm r
Just (l',_) -> l' == lt
groupNodesByNgrams :: ( At root_map
, Index root_map ~ NgramsTerm
, IxValue root_map ~ Maybe RootTerm
)
=> root_map
-> HashMap NgramsTerm (Set NodeId)
-> HashMap NgramsTerm (Set NodeId)
groupNodesByNgrams syn occs = HM.fromListWith (<>) occs'
where
occs' = map toSyn (HM.toList occs)
toSyn (t,ns) = case syn ^. at t of
Nothing -> panic $ "[Garg.API.Ngrams.Tools.groupNodesByNgrams] unknown key: " <> unNgramsTerm t
Just r -> case r of
Nothing -> (t, ns)
Just r' -> (r',ns)
data Diagonal = Diagonal Bool
getCoocByNgrams :: Diagonal -> HashMap NgramsTerm (Set NodeId) -> HashMap (NgramsTerm, NgramsTerm) Int
getCoocByNgrams = getCoocByNgrams' identity
getCoocByNgrams' :: (Hashable a, Ord a, Ord c) => (b -> Set c) -> Diagonal -> HashMap a b -> HashMap (a, a) Int
getCoocByNgrams' f (Diagonal diag) m =
HM.fromList [( (t1,t2)
, maybe 0 Set.size $ Set.intersection
<$> (fmap f $ HM.lookup t1 m)
<*> (fmap f $ HM.lookup t2 m)
)
| (t1,t2) <- if diag then
[ (x,y) | x <- ks, y <- ks, x <= y] -- TODO if we keep a Data.Map here it might be
-- more efficient to enumerate all the y <= x.
else
listToCombi identity ks
]
where ks = HM.keys m