content: -- Copyright (c) 2016-present, Facebook, Inc.
  -- All rights reserved.
  --
  -- This source code is licensed under the BSD-style license found in the
  -- LICENSE file in the root directory of this source tree.
  
  
  {-# LANGUAGE GADTs #-}
  {-# LANGUAGE LambdaCase #-}
  {-# LANGUAGE OverloadedStrings #-}
  
  module Duckling.Quantity.FR.Rules
    ( rules
    ) where
  
  import Data.String
  import Prelude
  import qualified Data.Text as Text
  
  import Duckling.Dimensions.Types
  import Duckling.Quantity.Helpers
  import Duckling.Numeral.Types (NumeralData (..))
  import Duckling.Regex.Types
  import Duckling.Types
  import qualified Duckling.Numeral.Types as TNumeral
  import qualified Duckling.Quantity.Types as TQuantity
  
  ruleNumeralUnits :: Rule
  ruleNumeralUnits = Rule
    { name = "<number> <units>"
    , pattern =
      [ dimension Numeral
      , regex "(tasses?|cuill?(e|è)res? (a|à) soupe?)"
      ]
    , prod = \case
        (Token Numeral NumeralData {TNumeral.value = v}:
         Token RegexMatch (GroupMatch (match:_)):
         _) -> case Text.toLower match of
           "tasse"  -> Just . Token Quantity $ quantity TQuantity.Cup v
           "tasses" -> Just . Token Quantity $ quantity TQuantity.Cup v
           _        -> Just . Token Quantity $ quantity TQuantity.Tablespoon v
        _ -> Nothing
    }
  
  ruleQuantityOfProduct :: Rule
  ruleQuantityOfProduct = Rule
    { name = "<quantity> of product"
    , pattern =
      [ dimension Quantity
      , regex "de (caf(e|é)|sucre)"
      ]
    , prod = \case
        (Token Quantity qd:
         Token RegexMatch (GroupMatch (match:_)):
         _) -> Just . Token Quantity $ withProduct match qd
        _ -> Nothing
    }
  
  rules :: [Rule]
  rules =
    [ ruleNumeralUnits
    , ruleQuantityOfProduct
    ]
  