duckling/Duckling/AmountOfMoney/Helpers.hs
Igor Kuzmenko 9993911e3b Adds UAH currency Type and examples to EN and RU Corpus (#433)
Summary:
This PR adds UAH currency Type and examples to EN and RU Corpus

Pull Request resolved: https://github.com/facebook/duckling/pull/433

Reviewed By: girifb

Differential Revision: D25102990

Pulled By: chessai

fbshipit-source-id: ed40e8dfcf145a65c7e6d87158da0efacb32e256
2021-02-01 14:32:24 -08:00

137 lines
3.9 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 #-}
{-# LANGUAGE NamedFieldPuns #-}
module Duckling.AmountOfMoney.Helpers
( currencyOnly
, valueOnly
, isSimpleAmountOfMoney
, isCent
, isCents
, isDollarCoin
, isCurrencyOnly
, isDime
, isMoneyWithValue
, isWithoutCents
, withCents
, withInterval
, withMax
, withMin
, withValue
, mkLatent
, dollarCoins
)
where
import Data.HashMap.Strict (HashMap)
import Data.Maybe (isJust)
import Data.String
import Data.Text (Text)
import Prelude
import Duckling.AmountOfMoney.Types
( Currency (..)
, AmountOfMoneyData (..)
, amountOfMoneyData'
)
import Duckling.Numeral.Types (getIntValue, isInteger)
import Duckling.Dimensions.Types
import Duckling.Types hiding (Entity(..))
import qualified Data.HashMap.Strict as HashMap
-- -----------------------------------------------------------------
-- Dollar coin Types
dollarCoins :: HashMap Text Double
dollarCoins = HashMap.fromList
[ ("nickel", 0.05)
, ("nickels", 0.05)
, ("dime", 0.1)
, ("dimes", 0.1)
, ("quarter", 0.25)
, ("quarters", 0.25)
]
-- -----------------------------------------------------------------
-- Patterns
isCents :: Predicate
isCents (Token AmountOfMoney AmountOfMoneyData{value = Just _, currency = Cent}) = True
isCents _ = False
isWithoutCents :: Predicate
isWithoutCents (Token AmountOfMoney AmountOfMoneyData{currency = Cent}) = False
isWithoutCents (Token AmountOfMoney AmountOfMoneyData{value = Just v}) = isInteger v
isWithoutCents _ = False
isMoneyWithValue :: Predicate
isMoneyWithValue (Token AmountOfMoney AmountOfMoneyData{value = v1, minValue = v2, maxValue = v3}) =
any isJust [v1, v2, v3]
isMoneyWithValue _ = False
isCurrencyOnly :: Predicate
isCurrencyOnly (Token AmountOfMoney AmountOfMoneyData
{value = Nothing, minValue = Nothing, maxValue = Nothing}) = True
isCurrencyOnly _ = False
isDollarCoin :: Predicate
isDollarCoin (Token AmountOfMoney AmountOfMoneyData{value = Just d, currency}) =
elem d [0.05, 0.1, 0.25] && elem currency [Dollar, AUD, CAD, JMD,
NZD, SGD, TTD, USD]
isDollarCoin _ = False
isSimpleAmountOfMoney :: Predicate
isSimpleAmountOfMoney (Token AmountOfMoney AmountOfMoneyData
{value = Just _, minValue = Nothing, maxValue = Nothing}) = True
isSimpleAmountOfMoney _ = False
isDime :: Predicate
isDime (Token AmountOfMoney AmountOfMoneyData
{value = Just d, currency = Cent}) =
maybe False (\i -> (i `mod` 10) == 0) $ getIntValue d
isDime _ = False
isCent :: Predicate
isCent (Token AmountOfMoney AmountOfMoneyData
{value = Just c, currency = Cent}) =
maybe False (\i -> i >= 0 && i <= 9) $ getIntValue c
isCent _ = False
-- -----------------------------------------------------------------
-- Production
currencyOnly :: Currency -> AmountOfMoneyData
currencyOnly c = amountOfMoneyData'{currency = c}
valueOnly :: Double -> AmountOfMoneyData
valueOnly x = amountOfMoneyData'{value = Just x}
withValue :: Double -> AmountOfMoneyData -> AmountOfMoneyData
withValue x fd = fd {value = Just x}
withCents :: Double -> AmountOfMoneyData -> AmountOfMoneyData
withCents x fd@AmountOfMoneyData {value = Just value} = fd
{value = Just $ value + x / 100}
withCents x AmountOfMoneyData {value = Nothing} =
amountOfMoneyData'{value = Just x, currency = Cent}
withInterval :: (Double, Double) -> AmountOfMoneyData -> AmountOfMoneyData
withInterval (from, to) fd = fd
{minValue = Just from, maxValue = Just to, value = Nothing}
withMin :: Double -> AmountOfMoneyData -> AmountOfMoneyData
withMin x fd = fd {minValue = Just x}
withMax :: Double -> AmountOfMoneyData -> AmountOfMoneyData
withMax x fd = fd {maxValue = Just x}
mkLatent :: AmountOfMoneyData -> AmountOfMoneyData
mkLatent fd = fd {latent = True}