module MediaWiki.API.Query.LangLinks.Import where
import MediaWiki.API.Types
import MediaWiki.API.Utils
import MediaWiki.API.Query.LangLinks
import Text.XML.Light.Types
import Text.XML.Light.Proc ( strContent )
import Control.Monad
import Data.Maybe
stringXml :: String -> Either (String,[String]) LangLinksResponse
stringXml s = parseDoc xml s
xml :: Element -> Maybe LangLinksResponse
xml e = do
guard (elName e == nsName "api")
let es1 = children e
p <- pNode "query" es1
let es = children p
ps <- fmap (mapMaybe xmlPage) (fmap children $ pNode "pages" es)
let cont = pNode "query-continue" es1 >>= xmlContinue "langlinks" "llcontinue"
return emptyLangLinksResponse
{ llPages = ps
, llContinue = cont
}
xmlPage :: Element -> Maybe (PageTitle,[LangPageInfo])
xmlPage e = do
guard (elName e == nsName "page")
let pid = fmap read $ pAttr "pageid" e
let ns = fromMaybe mainNamespace $ pAttr "ns" e
let tit = fromMaybe "" $ pAttr "title" e
let es = children e
ls <- fmap (mapMaybe xmlLangLink) (fmap children $ pNode "langlinks" es)
let pg = emptyPageTitle{pgNS=ns,pgMbId=pid,pgTitle=tit}
return (pg, ls)
xmlLangLink :: Element -> Maybe LangPageInfo
xmlLangLink e = do
guard (elName e == nsName "ll")
let la = fromMaybe "en" $ pAttr "lang" e
let tit = case strContent e of { "" -> Nothing ; xs -> Just xs}
return emptyLangPageInfo{langName=la,langTitle=tit}