duckling/Duckling/Temperature/Helpers.hs
RIAN DOUGLAS ecceacb820 Implement Temperature intervals
Summary: Make some changes to allow the TemperatureValue type to support intervals.

Reviewed By: patapizza

Differential Revision: D7680835

fbshipit-source-id: d18c67fbb03f14d61cddb53dae3c544513cc67f2
2018-05-21 12:00:41 -07:00

102 lines
2.8 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. An additional grant
-- of patent rights can be found in the PATENTS file in the same directory.
{-# LANGUAGE GADTs #-}
module Duckling.Temperature.Helpers
( isLatent
, isValueOnly
, isSimpleTemperature
, withUnit
, withInterval
, withValue
, valueOnly
, unitOnly
, withMin
, withMax
) where
import Data.Maybe
import Prelude
import Duckling.Dimensions.Types
import qualified Duckling.Temperature.Types as TTemperature
import Duckling.Temperature.Types (TemperatureData(..))
import Duckling.Types hiding (isLatent)
-- -----------------------------------------------------------------
-- Patterns
isLatent :: Predicate
isLatent (Token Temperature TemperatureData{TTemperature.unit = Nothing}) =
True
isLatent _ = False
isValueOnly :: Bool -> Predicate
isValueOnly allowDegree (Token Temperature TemperatureData
{ TTemperature.unit = u, TTemperature.value = Just _
, TTemperature.minValue = Nothing
, TTemperature.maxValue = Nothing})
= isNothing u || (allowDegree && u == Just TTemperature.Degree)
isValueOnly _ _ = False
isSimpleTemperature :: Predicate
isSimpleTemperature (Token Temperature TemperatureData
{TTemperature.value = Just _}) = True
isSimpleTemperature _ = False
-- -----------------------------------------------------------------
-- Production
withUnit :: TTemperature.TemperatureUnit -> TemperatureData -> TemperatureData
withUnit u td = td {TTemperature.unit = Just u}
withInterval :: (Int, Int) -> TemperatureData -> TemperatureData
withInterval (from, to) td = td
{ TTemperature.value = Nothing
, TTemperature.minValue = Just from
, TTemperature.maxValue = Just to
}
withValue :: Int -> TemperatureData -> TemperatureData
withValue v td = td
{ TTemperature.value = Just v
, TTemperature.minValue = Nothing
, TTemperature.maxValue = Nothing
}
valueOnly :: Int -> TemperatureData
valueOnly v = TemperatureData
{ TTemperature.unit = Nothing
, TTemperature.value = Just v
, TTemperature.minValue = Nothing
, TTemperature.maxValue = Nothing
}
unitOnly :: TTemperature.TemperatureUnit -> TemperatureData
unitOnly u = TemperatureData
{ TTemperature.unit = Just u
, TTemperature.value = Nothing
, TTemperature.minValue = Nothing
, TTemperature.maxValue = Nothing
}
withMax :: Int -> TemperatureData -> TemperatureData
withMax v td = td
{ TTemperature.value = Nothing
, TTemperature.minValue = Nothing
, TTemperature.maxValue = Just v
}
withMin :: Int -> TemperatureData -> TemperatureData
withMin v td = td
{ TTemperature.value = Nothing
, TTemperature.minValue = Just v
, TTemperature.maxValue = Nothing
}