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.Duration.RO.Rules
    ( rules
    ) where
  
  import Data.String
  import Prelude
  
  import Duckling.Dimensions.Types
  import Duckling.Duration.Helpers
  import Duckling.Numeral.Helpers (numberWith)
  import Duckling.Types
  import qualified Duckling.Numeral.Types as TNumeral
  import qualified Duckling.TimeGrain.Types as TG
  
  ruleQuarterOfAnHour :: Rule
  ruleQuarterOfAnHour = Rule
    { name = "quarter of an hour"
    , pattern =
      [ regex "(1/4\\s?(h|or(a|ă))|sfert de or(a|ă))"
      ]
    , prod = \_ -> Just . Token Duration $ duration TG.Minute 15
    }
  
  ruleJumatateDeOra :: Rule
  ruleJumatateDeOra = Rule
    { name = "jumatate de ora"
    , pattern =
      [ regex "(1/2\\s?(h|or(a|ă))|jum(a|ă)tate (de )?or(a|ă))"
      ]
    , prod = \_ -> Just . Token Duration $ duration TG.Minute 30
    }
  
  ruleTreiSferturiDeOra :: Rule
  ruleTreiSferturiDeOra = Rule
    { name = "trei sferturi de ora"
    , pattern =
      [ regex "(3/4\\s?(h|or(a|ă))|trei sferturi de or(a|ă))"
      ]
    , prod = \_ -> Just . Token Duration $ duration TG.Minute 45
    }
  
  ruleOUnitofduration :: Rule
  ruleOUnitofduration = Rule
    { name = "o <unit-of-duration>"
    , pattern =
      [ regex "o|un"
      , dimension TimeGrain
      ]
    , prod = \case
        (_:Token TimeGrain grain:_) -> Just . Token Duration $ duration grain 1
        _ -> Nothing
    }
  
  ruleExactInJurDeDuration :: Rule
  ruleExactInJurDeDuration = Rule
    { name = "exact|in jur de <duration>"
    , pattern =
      [ regex "(exact|aproximativ|(i|î)n jur de)"
      , dimension Duration
      ]
    , prod = \case
        (_:token:_) -> Just token
        _ -> Nothing
    }
  
  ruleIntegerDeUnitofduration :: Rule
  ruleIntegerDeUnitofduration = Rule
    { name = "<integer> <unit-of-duration>"
    , pattern =
      [ numberWith TNumeral.value (>= 20)
      , regex "de"
      , dimension TimeGrain
      ]
    , prod = \case
        (Token Numeral TNumeral.NumeralData{TNumeral.value = v}:
         _:
         Token TimeGrain grain:
         _) -> Just . Token Duration . duration grain $ floor v
        _ -> Nothing
    }
  
  rules :: [Rule]
  rules =
    [ ruleExactInJurDeDuration
    , ruleJumatateDeOra
    , ruleOUnitofduration
    , ruleQuarterOfAnHour
    , ruleTreiSferturiDeOra
    , ruleIntegerDeUnitofduration
    ]
  