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 OverloadedStrings #-}
  
  module Duckling.Ordinal.HU.Rules
    ( rules ) where
  
  import Control.Monad (join)
  import Data.HashMap.Strict ( HashMap)
  import Data.String
  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.Numeral.Helpers (parseInt)
  import Duckling.Ordinal.Helpers
  import Duckling.Regex.Types
  import Duckling.Types
  
  ordinalsMap :: HashMap Text Int
  ordinalsMap = HashMap.fromList
    [ ( "első", 1 )
    , ( "második", 2 )
    , ( "harmadik", 3 )
    , ( "negyedik", 4 )
    , ( "ötödik", 5 )
    , ( "hatodik", 6 )
    , ( "hetedik", 7 )
    , ( "nyolcadik", 8 )
    , ( "kilencedik", 9 )
    , ( "tizedik", 10 )
    , ( "huszadik", 20 )
    , ( "harmincadik", 30 )
    , ( "negyvenedik", 40 )
    , ( "ötvenedik", 50 )
    , ( "hatvanadik", 60 )
    , ( "hetvenedik", 70 )
    , ( "nyolcvanadik", 80 )
    , ( "kilencvenedik", 90 )
    ]
  
  ordinalsMap2 :: HashMap Text Int
  ordinalsMap2 = HashMap.fromList
      [ ( "egyedik", 1 )
      , ( "kettedik", 2 )
      , ( "harmadik", 3 )
      , ( "negyedik", 4 )
      , ( "ötödik", 5 )
      , ( "hatodik", 6 )
      , ( "hetedik", 7 )
      , ( "nyolcadik", 8 )
      , ( "kilencedik", 9 )
      ]
  
  cardinalsMap :: HashMap Text Int
  cardinalsMap = HashMap.fromList
    [ ( "tizen", 10 )
    , ( "huszon", 20 )
    , ( "harminc", 30 )
    , ( "negyven", 40 )
    , ( "ötven", 50 )
    , ( "hatvan", 60 )
    , ( "hetven", 70 )
    , ( "nyolcvan", 80 )
    , ( "kilencven", 90 )
    ]
  
  ruleOrdinals :: Rule
  ruleOrdinals = Rule
    { name = "ordinals (first..twentieth,thirtieth,...)"
    , pattern =
      [ regex "(első|második|harmadik|negyedik|ötödik|hatodik|hetedik|nyolcadik|kilencedik|tizedik|huszadik|harmincadik|negyvenedik|ötvenedik|hatvanadik|hetvenedik|nyolcvanadik|kilencvenedik)"
      ]
    , prod = \tokens -> case tokens of
        (Token RegexMatch (GroupMatch (match:_)):_) ->
          ordinal <$> HashMap.lookup (Text.toLower match) ordinalsMap
        _ -> Nothing
      }
  
  ruleCompositeOrdinals :: Rule
  ruleCompositeOrdinals = Rule
    { name = "ordinals (composite, e.g., eighty-seven)"
    , pattern =
      [ regex "(tizen|huszon|harminc|negyven|ötven|hatvan|hetven|nyolcvan|kilencven)\\-?(egyedik|kettedik|harmadik|negyedik|ötödik|hatodik|hetedik|nyolcadik|kilencedik)"
      ]
    , prod = \tokens -> case tokens of
        (Token RegexMatch (GroupMatch (tens:units:_)):_) -> do
          tt <- HashMap.lookup (Text.toLower tens) cardinalsMap
          uu <- HashMap.lookup (Text.toLower units) ordinalsMap2
          Just . ordinal $ tt + uu
        _ -> Nothing
    }
  
  ruleOrdinalDigits :: Rule
  ruleOrdinalDigits = Rule
    { name = "ordinal (digits)"
    , pattern =
      [ regex "0*(\\d+)\\."
      ]
    , prod = \tokens -> case tokens of
        (Token RegexMatch (GroupMatch (match:_)):_) -> ordinal <$> parseInt match
        _ -> Nothing
    }
  
  rules :: [Rule]
  rules =
    [ ruleOrdinals
    , ruleCompositeOrdinals
    , ruleOrdinalDigits
    ]
  