{-# HLINT ignore "Redundant flip" #-}
{-# LANGUAGE ImportQualifiedPost #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# OPTIONS_GHC -Wno-unrecognised-pragmas #-}

module Datalog.DatalogDB where

import Control.Exception.Base
import Data.List
import Data.Map (Map)
import Data.Map qualified as Map
import Data.Maybe
import Data.Set (Set)
import Data.Set qualified as Set
import Data.Text (Text)
import Data.Void
import Datalog.DatalogParser (Head (HeadSingle), Literal (..), Statement (..), Term (..), parseDatalog)
import Text.Megaparsec (ParseErrorBundle)
import Datalog.Rules

class DatalogDB db where
  emptyDB :: db
  lookupRelation :: db -> Text -> Maybe Relation
  insertRelation :: db -> Relation -> db
  addRule :: (Literal, [Literal]) -> db -> db