-- 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.Volume.IT.Rules
  ( rules ) where

import Data.String
import Data.Text (Text)
import Prelude

import Duckling.Dimensions.Types
import Duckling.Types
import Duckling.Regex.Types
import Duckling.Volume.Helpers
import Duckling.Numeral.Helpers (isPositive)
import qualified Duckling.Volume.Types as TVolume
import qualified Duckling.Numeral.Types as TNumeral

volumes :: [(Text, String, TVolume.Unit)]
volumes :: [(Text, String, Unit)]
volumes = [ (Text
"<latent vol> ml"    , String
"m(l|illilitr(i|o))" , Unit
TVolume.Millilitre)
          , (Text
"<vol> hectoliters"  , String
"ettolitr(i|o)"    , Unit
TVolume.Hectolitre)
          , (Text
"<vol> liters"       , String
"l(itr(i|o))?"    , Unit
TVolume.Litre)
          , (Text
"<latent vol> gallon", String
"gal(lon(e|i))?"   , Unit
TVolume.Gallon)
          ]

rulesVolumes :: [Rule]
rulesVolumes :: [Rule]
rulesVolumes = ((Text, String, Unit) -> Rule) -> [(Text, String, Unit)] -> [Rule]
forall a b. (a -> b) -> [a] -> [b]
map (Text, String, Unit) -> Rule
go [(Text, String, Unit)]
volumes
  where
    go :: (Text, String, TVolume.Unit) -> Rule
    go :: (Text, String, Unit) -> Rule
go (Text
name, String
regexPattern, Unit
u) = Rule :: Text -> Pattern -> Production -> Rule
Rule
      { name :: Text
name = Text
name
      , pattern :: Pattern
pattern =
        [ String -> PatternItem
regex String
regexPattern
        ]
      , prod :: Production
prod = \[Token]
_ -> Token -> Maybe Token
forall a. a -> Maybe a
Just (Token -> Maybe Token)
-> (VolumeData -> Token) -> VolumeData -> Maybe Token
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Dimension VolumeData -> VolumeData -> Token
forall a.
(Resolve a, Eq a, Hashable a, Show a, NFData a) =>
Dimension a -> a -> Token
Token Dimension VolumeData
Volume (VolumeData -> Maybe Token) -> VolumeData -> Maybe Token
forall a b. (a -> b) -> a -> b
$ Unit -> VolumeData
unitOnly Unit
u
      }

fractions :: [(Text, String, Double)]
fractions :: [(Text, String, Double)]
fractions = [ (Text
"half", String
"mezzo", Double
1Double -> Double -> Double
forall a. Fractional a => a -> a -> a
/Double
2)
            ]

rulesFractionalVolume :: [Rule]
rulesFractionalVolume :: [Rule]
rulesFractionalVolume = ((Text, String, Double) -> Rule)
-> [(Text, String, Double)] -> [Rule]
forall a b. (a -> b) -> [a] -> [b]
map (Text, String, Double) -> Rule
go [(Text, String, Double)]
fractions
  where
    go :: (Text, String, Double) -> Rule
    go :: (Text, String, Double) -> Rule
go (Text
name, String
regexPattern, Double
f) = Rule :: Text -> Pattern -> Production -> Rule
Rule
      { name :: Text
name = Text
name
      , pattern :: Pattern
pattern =
        [ String -> PatternItem
regex String
regexPattern
        , Predicate -> PatternItem
Predicate Predicate
isUnitOnly
        ]
      , prod :: Production
prod = \case
        (Token
_:
         Token Dimension a
Volume TVolume.VolumeData{TVolume.unit = Just u}:
         [Token]
_) ->
          Token -> Maybe Token
forall a. a -> Maybe a
Just (Token -> Maybe Token)
-> (VolumeData -> Token) -> VolumeData -> Maybe Token
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Dimension VolumeData -> VolumeData -> Token
forall a.
(Resolve a, Eq a, Hashable a, Show a, NFData a) =>
Dimension a -> a -> Token
Token Dimension VolumeData
Volume (VolumeData -> Maybe Token) -> VolumeData -> Maybe Token
forall a b. (a -> b) -> a -> b
$ Unit -> Double -> VolumeData
volume Unit
u Double
f
        [Token]
_ -> Maybe Token
forall a. Maybe a
Nothing
      }

rules :: [Rule]
rules :: [Rule]
rules =
  [
  ]
  [Rule] -> [Rule] -> [Rule]
forall a. [a] -> [a] -> [a]
++ [Rule]
rulesVolumes
  [Rule] -> [Rule] -> [Rule]
forall a. [a] -> [a] -> [a]
++ [Rule]
rulesFractionalVolume