duckling/Duckling/Quantity/Helpers.hs
Julien Odent bf89e34365 Relicense to BSD3
Reviewed By: JoelMarcey

Differential Revision: D15439223

fbshipit-source-id: c5af3cb06318748142fe503945b38beffadfc28a
2019-05-22 10:46:39 -07:00

80 lines
2.5 KiB
Haskell

-- 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 #-}
module Duckling.Quantity.Helpers
( getValue
, isSimpleQuantity
, quantity
, unitOnly
, withProduct
, withUnit
, withValue
, withInterval
, withMin
, withMax
) where
import Data.HashMap.Strict (HashMap)
import Data.Text (Text)
import Prelude
import qualified Data.HashMap.Strict as HashMap
import qualified Data.Text as Text
import Duckling.Dimensions.Types
import Duckling.Quantity.Types (QuantityData(..))
import Duckling.Types
import qualified Duckling.Quantity.Types as TQuantity
getValue :: HashMap Text (Double -> Double) -> Text -> Double -> Double
getValue opsMap match = HashMap.lookupDefault id (Text.toLower match) opsMap
-- -----------------------------------------------------------------
-- Patterns
isSimpleQuantity :: Predicate
isSimpleQuantity (Token Quantity QuantityData {TQuantity.unit = Just _
, TQuantity.value = Just _})
= True
isSimpleQuantity _ = False
-- -----------------------------------------------------------------
-- Production
quantity :: TQuantity.Unit -> Double -> QuantityData
quantity u v = QuantityData {TQuantity.unit = Just u
, TQuantity.value = Just v
, TQuantity.aproduct = Nothing
, TQuantity.minValue = Nothing
, TQuantity.maxValue = Nothing}
unitOnly :: TQuantity.Unit -> QuantityData
unitOnly u = QuantityData {TQuantity.unit = Just u
, TQuantity.value = Nothing
, TQuantity.aproduct = Nothing
, TQuantity.minValue = Nothing
, TQuantity.maxValue = Nothing}
withProduct :: Text -> QuantityData -> QuantityData
withProduct p qd = qd {TQuantity.aproduct = Just p}
withUnit :: TQuantity.Unit -> QuantityData -> QuantityData
withUnit u qd = qd {TQuantity.unit = Just u}
withValue :: Double -> QuantityData -> QuantityData
withValue value qd = qd {TQuantity.value = Just value}
withInterval :: (Double, Double) -> QuantityData -> QuantityData
withInterval (from, to) qd = qd {minValue = Just from, maxValue = Just to}
withMin :: Double -> QuantityData -> QuantityData
withMin from qd = qd {minValue = Just from}
withMax :: Double -> QuantityData -> QuantityData
withMax to qd = qd {maxValue = Just to}