module ParseHtml (printDef, printDifferentDef) where

import Text.HTML.TagSoup
import Prelude
import WordDef
import qualified Data.Text.Lazy as T


printDifferentDef :: T.Text -> IO ()
printDifferentDef x = putStrLn (getDifferentDef x)

getDifferentDef :: T.Text -> String
getDifferentDef x = getDifferentDefMessages (length xs) ++ renderWordList xs 
                    where xs = (parseDefTags . differentDefTags) x

getDifferentDefMessages :: Int -> String
getDifferentDefMessages 0 = "Aucune définition disponible."
getDifferentDefMessages 1 = "Une définition disponible : \n"
getDifferentDefMessages _ = "Plusieurs définitions disponibles : \n"

parseDefTags :: [Tag String] -> [WordDefHeader]
parseDefTags [] = []
parseDefTags xs = 
    (WordDefHeader (WordName (renderTags (take 1 (fst st)))) 
    (WordType (renderTags [(fst st) !! 1])))
    : (parseDefTags (snd st))
    where st = subTags xs

subTags :: [Tag String] -> ([Tag String],[Tag String])
subTags [] = ([],[])
subTags xs = if (length xs) `mod` 3 /= 0
             then splitAt 2 xs
             else ((take 1 xs) ++ (take 1 (drop 2 xs)) , drop 3 xs)

differentDefTags :: T.Text -> [Tag String]
differentDefTags =
    filter (~== TagText "") . (takeWhile (~/= "<div id=contentbox>"))
    . (dropWhile (~/= "<div id=vtoolbar>")) . parseTags . T.unpack

printDef :: T.Text -> IO ()
printDef = putStrLn . getDef 

getDef :: T.Text -> String
getDef = (renderFullDef . getFullDef . parseFullDefTags)

getFullDef :: [Tag String] -> WordFullDef
getFullDef x = WordFullDef (WordDefHeader (WordName "lol") (WordType
               "Interjection")) [WordDefSentence "Laughing Out Loud",
               WordExampleSentence "ur wrong lol"]

parseFullDefTags :: T.Text -> [Tag String]
parseFullDefTags = filter (~== "<span class=tlf_cdefinition") . parseTags 
                 . T.unpack