MediaWiki/API/Query/Templates/Import.hs

module MediaWiki.API.Query.Templates.Import where

import MediaWiki.API.Types
import MediaWiki.API.Utils
import MediaWiki.API.Query.Templates

import Text.XML.Light.Types

import Control.Monad
import Data.Maybe

stringXml :: String -> Either (String,[{-Error msg-}String]) TemplatesResponse
stringXml s = parseDoc xml s

xml :: Element -> Maybe TemplatesResponse
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 "templates" "tlcontinue"
 return emptyTemplatesResponse{tlPages=ps,tlContinue=cont}

xmlPage :: Element -> Maybe (PageTitle, [PageTitle])
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
 ps <- fmap (mapMaybe xmlT) (fmap children $ pNode "templates" (children e))
 return (emptyPageTitle{pgNS=ns,pgTitle=tit,pgMbId=pid}, ps)
 where
 xmlT p = do
 guard (elName p == nsName "tl")
 let ns = fromMaybe "0" $ pAttr "ns" p
 let tit = fromMaybe "" $ pAttr "title" p
 let pid = pAttr "pageid" p
 return emptyPageTitle{pgNS=ns,pgTitle=tit,pgMbId=pid}