{-# OPTIONS -fno-warn-orphans #-}
{-# LANGUAGE OverloadedStrings #-}
{-# OPTIONS -fno-warn-name-shadowing -fno-warn-unused-do-bind #-}

module Text.Blaze.Extra where

import           Control.Monad
import           Data.Monoid
import           Text.Blaze.Html5            as H hiding (map)
import           Text.Blaze.Html5.Attributes as A
import           Text.Blaze.Internal         (Attributable)

(!.) :: (Attributable h) => h -> AttributeValue -> h
elem !. className = elem ! class_ className

(!#) :: (Attributable h) => h -> AttributeValue -> h
elem !# idName = elem ! A.id idName

linesToHtml :: String -> Html
linesToHtml str = forM_ (lines str) $ \line -> do toHtml line; br

htmlIntercalate :: Html -> [Html] -> Html
htmlIntercalate _ [x] = x
htmlIntercalate sep (x:xs) = do x; sep; htmlIntercalate sep xs
htmlIntercalate _ []  = mempty

htmlCommasAnd :: [Html] -> Html
htmlCommasAnd [x] = x
htmlCommasAnd [x,y] = do x; " and "; y
htmlCommasAnd (x:xs) = do x; ", "; htmlCommasAnd xs
htmlCommasAnd []  = mempty

htmlCommas :: [Html] -> Html
htmlCommas = htmlIntercalate ", "