import Text.Pandoc
import Text.Pandoc.JSON
import Control.Monad.State
import Id


{- 
 - Écrit par Hédy GIRAUDEAU
 - 27/07/17
-}
extractStart :: [Inline] -> ([Inline],[Inline])
extractStart [] = ([],[])
extractStart ((SoftBreak):q) = ((SoftBreak):y, z) where (y,z) = (extractStart q)
extractStart ((LineBreak):q) = ((LineBreak):y, z) where (y,z) = (extractStart q)
extractStart (img@(Image _ _ _):q) = (img: y, z) where (y,z) = (extractStart q)
extractStart x = ([],x)




transformBlock cnt ( hdF@(Header 1 _ inlines) : paraF@(Para inlinesP) : blocks ) = 
    return (( (RawBlock (Format "html")
                     ( start_header )
                    ) : hdF :
           (RawBlock (Format "html")
                     ( end_header )
                    ) : (Plain inlinesP) :
             (RawBlock (Format "html")
                     ( end_intro )
                    ) : blocks
             ) ++ [ (RawBlock (Format "html")
                     (end_article) )
                  ])
            where start_header = "<header>"
                  end_header = "</header><section class=\"entry-content clearfix\" >"
                  end_intro = ""
                  end_article = "</section>"

--transformBlock _ ((Para inlines):tl) =
--    return ((Plain plainInline):(Para paraInline:tl))
--           where (plainInline, paraInline) = extractStart(inlines)


transformBlock _ x = return x


bar :: Pandoc -> IO Pandoc
bar x = do cnt <- newId
           bottomUpM (transformBlock cnt) x

main :: IO()
main = toJSONFilter bar


-- vim:set et: