{-# LANGUAGE NamedFieldPuns #-}
module ArticlesList (
      ArticlesList(..)
    , otherLink
    , otherUrl
    , pageTitle
  ) where

import Article (Article)
import System.FilePath.Posix ((</>))

data ArticlesList = ArticlesList {
      tagged :: Maybe String
    , full :: Bool
    , featured :: [Article]
  }

otherUrl :: ArticlesList -> String
otherUrl (ArticlesList {full, tagged}) =
  if full
    then url tagged
    else url tagged </> "all.html"
  where
    url = maybe "/" ("/" </>)

otherLink :: ArticlesList -> String
otherLink (ArticlesList {full}) =
  if full
    then "See only latest"
    else "See all"

pageTitle :: ArticlesList -> String
pageTitle (ArticlesList {full, tagged}) =
  (if full then "All" else "Latest") ++ " articles" ++ maybe "" (" tagged " ++) tagged