Module:Autorité

function sudocLink( id )

   if not string.match( id, '^%d%d%d%d%d%d%d%d[%dxX]$' ) then
       return false
   end
   return 'http://www.idref.fr/' .. id

end

function bnfLink( id )

   --Add cb prefix if it has been removed
   if not string.match( id, '^cb.+$' ) then
       id = 'cb' .. id
   end

   return 'http://catalogue.bnf.fr/ark:/12148/' .. id

end

function viafLink( id )

   if not string.match( id, '^%d+$' ) then
       return false
   end
   return 'http://viaf.org/viaf/' .. id

end

function lccnLink( id )

   local parts = splitLccn( id )
   if not parts then
       return false
   end
   id = parts[1] .. parts[2] .. append( parts[3], '0', 6 )
   return 'http://id.loc.gov/authorities/names/' .. id

end

function splitLccn( id )

   if id:match( '^%l%l?%l?%d%d%d%d%d%d%d%d%d?%d?$' ) then
       id = id:gsub( '^(%l+)(%d+)(%d%d%d%d%d%d)$', '%1/%2/%3' )
   end
   if id:match( '^%l%l?%l?/%d%d%d?%d?/%d+$' ) then
        return mw.text.split( id, '/' )
   end
   return false

end

function append(str, c, length)

   while str:len() < length do
       str = c .. str
   end
   return str

end

function gndLink( id )

   return 'http://d-nb.info/gnd/' .. id

end

function createRow( id, label, rawValue, link )

   if link then
       local text = '[' .. link .. ' ' .. label .. ']'
       return text
   else
       return '* '
   end

end

function getIdsFromWikidata( item, property )

   local ids = {}
   if not item.claims[property] then
       return ids
   end
   for _, statement in pairs( item.claims[property] ) do
       table.insert( ids, statement.mainsnak.datavalue.value )
   end
   return ids

end

--In this order: name of the parameter, label, propertyId in Wikidata, formatting function local conf = {

   { 'SUDOC', 'Système universitaire de documentation', 269, sudocLink },
   { 'BNF', 'Bibliothèque nationale de France', 268, bnfLink },
   { 'VIAF', 'Fichier d’autorité international virtuel', 214, viafLink },
   { 'LCCN', 'Bibliothèque du Congrès', 244, lccnLink },
   { 'GND', 'Gemeinsame Normdatei', 227, gndLink },
   { 'SWD', 'Schlagwortnormdatei', 0, swdLink }

}

local p = {}

function p.authorityControl( frame )

   local parentArgs = frame:getParent().args
   --Create rows
   local elements = {}
   local isDepreciated = false --S'il y a un id déprécié

   --Redirection des identifiants de la Bibliothèque Nationale d'Allemagne vers GND
   if parentArgs.GND == nil or parentArgs.GND ==  then
       if parentArgs.DNB ~= nil and parentArgs.DNB ~=  then
           parentArgs.GND = parentArgs.DNB
           isDepreciated = true
       elseif parentArgs.PND ~= nil and parentArgs.PND ~=  then
           parentArgs.GND = parentArgs.PND
           isDepreciated = true
       elseif parentArgs.GKD ~= nil and parentArgs.GKD ~=  then
           parentArgs.GND = parentArgs.GKD
           isDepreciated = true
       elseif parentArgs['GKD-V1'] ~= nil and parentArgs['GKD-V1'] ~=  then
           parentArgs.GND = parentArgs['GKD-V1']
           isDepreciated = true
       end
   end
   
   --Wikidata fallback if requested
   local item = mw.wikibase.getEntity()
   if item ~= nil and item.claims ~= nil then
       for _, params in pairs( conf ) do
           if params[3] ~= 0 then
               local val = parentArgs[params[1]]
               if not val or val ==  then
                   local wikidataIds = getIdsFromWikidata( item, 'p' .. params[3] )
                   if wikidataIds[1] then
                       parentArgs[params[1]] = wikidataIds[1]
                   end
               end
           end
       end
   end

   --Configured rows
   for _, params in pairs( conf ) do
       local val = parentArgs[params[1]]

       if val and val ~=  then
           table.insert( elements, createRow( params[1], params[2], val, params[4]( val ) ) )
       end
   end

   --Worldcat
   if parentArgs['WORLDCATID'] and parentArgs['WORLDCATID'] ~=  then
       table.insert( elements, createRow( 'WORLDCATID', 'WorldCat', parentArgs['WORLDCATID'], 'http://www.worldcat.org/identities/' .. parentArgs['WORLDCATID'] ) ) --Validation?
   elseif parentArgs['LCCN'] and parentArgs['LCCN'] ~=  then
       local lccnParts = splitLccn( parentArgs['LCCN'] )
       if lccnParts then
           table.insert( elements, createRow( 'LCCN', 'WorldCat', parentArgs['LCCN'], 'http://www.worldcat.org/identities/lccn-' .. lccnParts[1] .. lccnParts[2] .. '-' .. lccnParts[3] ) )
       end
   end

   local str = 
   if isDepreciated then
       str = str .. '\n'
   end
   return "* Notices d’autorité : " .. table.concat( elements, ' • ' )

end

return p