module MediaWiki.API.Query.DeletedRevisions.Import where
import MediaWiki.API.Types
import MediaWiki.API.Utils
import MediaWiki.API.Query.DeletedRevisions
import Text.XML.Light.Types
import Text.XML.Light.Proc ( strContent )
import Control.Monad
import Data.Maybe
stringXml :: String -> Either (String,[String]) DeletedRevisionsResponse
stringXml s = parseDoc xml s
xml :: Element -> Maybe DeletedRevisionsResponse
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 "revisions" es)
let cont = pNode "query-continue" es1 >>= xmlContinue "deletedrevs" "drstart"
return emptyDeletedRevisionsResponse{drRevisions=ps,drContinue=cont}
xmlPage :: Element -> Maybe DeletedRevision
xmlPage e = do
guard (elName e == nsName "page")
let ns = fromMaybe "0" $ pAttr "ns" e
let tit = fromMaybe "" $ pAttr "title" e
let pid = pAttr "pageid" e
let pg = emptyPageTitle{pgNS=ns,pgTitle=tit,pgMbId=pid}
let ts = pAttr "timestamp" e
let re = pAttr "revid" e
let usr = pAttr "user" e
let co = pAttr "comment" e
let ism = isJust $ pAttr "minor" e
let le = pAttr "len" e >>= readMb
let cts = case (strContent e) of { "" -> Nothing; xs -> Just xs}
let tok = pAttr "token" e
return emptyDeletedRevision
{ drPage = pg
, drTimestamp = ts
, drRevId = re
, drUser = usr
, drComment = co
, drIsMinor = ism
, drLength = le
, drContent = cts
, drToken = tok
}