{-# LANGUAGE NoMonomorphismRestriction #-}
{-# LANGUAGE OverloadedStrings         #-}

{-# OPTIONS_GHC -fno-warn-missing-signatures #-}

module Data.Succinct.Json.Standard.GenCursorTest(genTest) where

import Control.Monad
import Data.Succinct.BalancedParens.BalancedParens
import HaskellWorks.Data.Bits.BitWise
import Data.Succinct.Json.Internal.Index
import Data.Succinct.Json.Internal.Standard.Cursor.Token
import Data.Succinct.Json.Internal.Token
import Data.Succinct.Json.Standard.Cursor.Generic
import Data.Succinct.RankSelect.Base.Rank0
import Data.Succinct.RankSelect.Base.Rank1
import Data.Succinct.RankSelect.Base.Select1
import HaskellWorks.Hspec.Hedgehog
import Hedgehog
import Test.Hspec

import qualified Data.ByteString              as BS
import qualified HaskellWorks.Data.TreeCursor as TC

{- HLINT ignore "Reduce duplication" -}
{- HLINT ignore "Redundant bracket"  -}
{- HLINT ignore "Redundant do"       -}

fc = TC.firstChild
ns = TC.nextSibling
pn = TC.parent
ss = TC.subtreeSize

genTest :: forall t u.
  ( Eq                t
  , Show              t
  , Select1           t
  , Eq                u
  , Show              u
  , Rank0             u
  , Rank1             u
  , BalancedParens    u
  , TestBit           u)
  => String -> (String -> GenericCursor BS.ByteString t u) -> SpecWith ()
genTest t mkCursor = do
  describe ("Json cursor of type " ++ t) $ do
    describe "For empty json array" $ do
      let cursor = mkCursor "[null]"
      it "can navigate down and forwards" $ requireTest $ do
        jsonIndexAt cursor === Right (JsonIndexArray [JsonIndexNull])
    describe "For sample Json" $ do
      let cursor = mkCursor "\
            \{ \
            \    \"widget\": { \
            \        \"debug\": \"on\", \
            \        \"window\": { \
            \            \"name\": \"main_window\", \
            \            \"dimensions\": [500, 600.01e-02, true, false, null] \
            \        } \
            \    } \
            \}"
      it "can navigate up" $ requireTest $ do
        (                                                                      pn) cursor === Nothing
        (fc                                                                >=> pn) cursor ===                                    Just cursor
        (fc >=> ns                                                         >=> pn) cursor ===                                    Just cursor
        (fc >=> ns >=> fc                                                  >=> pn) cursor === (fc >=> ns                            ) cursor
        (fc >=> ns >=> fc >=> ns                                           >=> pn) cursor === (fc >=> ns                            ) cursor
        (fc >=> ns >=> fc >=> ns >=> ns                                    >=> pn) cursor === (fc >=> ns                            ) cursor
        (fc >=> ns >=> fc >=> ns >=> ns >=> ns                             >=> pn) cursor === (fc >=> ns                            ) cursor
        (fc >=> ns >=> fc >=> ns >=> ns >=> ns >=> fc                      >=> pn) cursor === (fc >=> ns >=> fc >=> ns >=> ns >=> ns) cursor
        (fc >=> ns >=> fc >=> ns >=> ns >=> ns >=> fc >=> ns               >=> pn) cursor === (fc >=> ns >=> fc >=> ns >=> ns >=> ns) cursor
        (fc >=> ns >=> fc >=> ns >=> ns >=> ns >=> fc >=> ns >=> ns        >=> pn) cursor === (fc >=> ns >=> fc >=> ns >=> ns >=> ns) cursor
        (fc >=> ns >=> fc >=> ns >=> ns >=> ns >=> fc >=> ns >=> ns >=> ns >=> pn) cursor === (fc >=> ns >=> fc >=> ns >=> ns >=> ns) cursor
      it "can get subtree size" $ requireTest $ do
        (                                                                      ss) cursor === Just 16
        (fc                                                                >=> ss) cursor === Just 1
        (fc >=> ns                                                         >=> ss) cursor === Just 14
        (fc >=> ns >=> fc                                                  >=> ss) cursor === Just 1
        (fc >=> ns >=> fc >=> ns                                           >=> ss) cursor === Just 1
        (fc >=> ns >=> fc >=> ns >=> ns                                    >=> ss) cursor === Just 1
        (fc >=> ns >=> fc >=> ns >=> ns >=> ns                             >=> ss) cursor === Just 10
        (fc >=> ns >=> fc >=> ns >=> ns >=> ns >=> fc                      >=> ss) cursor === Just 1
        (fc >=> ns >=> fc >=> ns >=> ns >=> ns >=> fc >=> ns               >=> ss) cursor === Just 1
        (fc >=> ns >=> fc >=> ns >=> ns >=> ns >=> fc >=> ns >=> ns        >=> ss) cursor === Just 1
        (fc >=> ns >=> fc >=> ns >=> ns >=> ns >=> fc >=> ns >=> ns >=> ns >=> ss) cursor === Just 6
      it "can get token at cursor" $ requireTest $ do
        (jsonTokenAt                                                                      ) cursor === Just (JsonTokenBraceL                 )
        (fc                                                                >=> jsonTokenAt) cursor === Just (JsonTokenString   "widget"      )
        (fc >=> ns                                                         >=> jsonTokenAt) cursor === Just (JsonTokenBraceL                 )
        (fc >=> ns >=> fc                                                  >=> jsonTokenAt) cursor === Just (JsonTokenString   "debug"       )
        (fc >=> ns >=> fc >=> ns                                           >=> jsonTokenAt) cursor === Just (JsonTokenString   "on"          )
        (fc >=> ns >=> fc >=> ns >=> ns                                    >=> jsonTokenAt) cursor === Just (JsonTokenString   "window"      )
        (fc >=> ns >=> fc >=> ns >=> ns >=> ns                             >=> jsonTokenAt) cursor === Just (JsonTokenBraceL                 )
        (fc >=> ns >=> fc >=> ns >=> ns >=> ns >=> fc                      >=> jsonTokenAt) cursor === Just (JsonTokenString   "name"        )
        (fc >=> ns >=> fc >=> ns >=> ns >=> ns >=> fc >=> ns               >=> jsonTokenAt) cursor === Just (JsonTokenString   "main_window" )
        (fc >=> ns >=> fc >=> ns >=> ns >=> ns >=> fc >=> ns >=> ns        >=> jsonTokenAt) cursor === Just (JsonTokenString   "dimensions"  )
        (fc >=> ns >=> fc >=> ns >=> ns >=> ns >=> fc >=> ns >=> ns >=> ns >=> jsonTokenAt) cursor === Just (JsonTokenBracketL               )