{-# LANGUAGE Arrows, NoMonomorphismRestriction #-}
import ShadowLibrary.Core

import Text.XML.HXT.Core
import Text.XML.HXT.XPath
import Text.XML.HXT.Curl
import Data.List
import Data.List.Utils (replace)

import Text.Regex.Posix
import Text.Printf

extractRecords = extractLinksWithText "//ul[@class='menu-topmenu menu-iconmenu']//li[@class='first' or @class='last' or not(@class)]//a"
	>>> second (arr $ replace "\n\t \n\t\t" "")
	>>> second (arr $ replace "\t \n  " "")
	>>> first (extractLinksWithText "//div[@class='jsn-article-content']//a[contains(.,'nr')]")
	>>> first (second ( arr $ replace "ś" "s"))
	>>> first (second ( arr $ replace "ń" "n"))
	>>> first (second ( arr $ replace "ź" "z"))

toShadowItem :: ((String, String), String) -> ShadowItem
toShadowItem ((url, articleTitle), yearlyTitle) =
  (defaultShadowItem url title) {
    originalDate = extractDate articleTitle,
    itype = "periodical",
    format = Just "pdf",
    finalUrl = url
    }
  where title = articleTitle

extractDate :: String -> Maybe String
extractDate url =
  case url =~~ ("[A-Za-z]+ [0-9]{4}" :: String) of
    Just date -> Just date
    otherwise -> extractOtherDate url

extractOtherDate :: String -> Maybe String
extractOtherDate url =
   case url =~~ ("[0-9]{4}_[0-9]{2}" :: String) of
    Just date -> Just date
    otherwise -> Just url


main = do
    let start = "https://www.smpopowice.pl/"
    let shadowLibrary = ShadowLibrary {logoUrl=Nothing,
                                       lname="Nasze Popowice",
                                       abbrev="NaszPop",
                                       lLevel=0,
                                       webpage=start}
    extractItemsStartingFromUrl shadowLibrary start (extractRecords >>> arr toShadowItem)