require('strict')
local p = {}
local configfile = 'Module:Authority control/config' -- default configuation module
local arg = mw.getCurrentFrame.args.config
if arg and arg~='' then
configfile = 'Module:Authority control/config/' .. arg
end
local config
if mw.title.new(configfile).exists then
config = mw.loadData(configfile)
else
return error('Invalid configuration file',0)
end
local title = mw.title.getCurrentTitle
local namespace = title.namespace
local testcases = title.subpageText == config.i18n.testcases  
local function needsAttention(sortkey)
return * .. sortkey .. title.text .. *
end  
local function addCat(cat,sortkey)
if cat and cat ~= '' and (namespace == 0 or namespace == 14 or testcases) then
local redlinkcat = ''
if testcases == false and mw.title.new(cat, 14).exists == false then
redlinkcat = needsAttention('N')
end
if sortkey then
cat = * .. sortkey .. title.text .. *
else
cat = * .. config.i18n.category .. ':'..cat..*
end
cat = cat .. redlinkcat
return cat
else
return ''
end
end  
local function getCatForId(id,faulty)
local cat = config.i18n.Articles_with .. ' '
if faulty then cat = cat .. config.i18n.faulty .. ' ' end
cat = cat .. id .. ' ' .. config.i18n.identifiers
return addCat(cat)
end  
local function getIdsFromWikidata(qid,property)
local function getquals(statement,qualid)
if statement.qualifiers and statement.qualifiers['P'..qualid] then
return mw.wikibase.renderSnak(statement.qualifiers['P'..qualid][1])
else
return false
end
end
local ids = {}
if qid then
for _, statement in ipairs(mw.wikibase.getBestStatements(qid,property)) do
if statement.mainsnak.datavalue then
local val = statement.mainsnak.datavalue.value
if val then
local namedas = getquals(statement,1810) or getquals(statement,742) or ''
table.insert(ids,{id=val,name=namedas})
end
end
end
end
return ids
end  
local _makelink = function(conf,val,nextid,qid) --validate values and create a link
local function tooltip(text,label)
if label and label~='' then
return mw.getCurrentFrame:expandTemplate{title = "Tooltip", args = {text,label}}
else
return text
end
end
local link
if nextid==1 then
if conf.prefix then
link = '*' .. conf.prefix .. '\n**'
else
link = '*'
end
else
link = '\n**'
end
local valid_value = false
if conf.customlink then -- use function to validate and generate link
local label = nextid>1 and nextid
local newlink= require(config.auxiliary)[conf.customlink](val.id,label)
if newlink then
link = link .. newlink
valid_value = true
end
else
if conf.pattern then -- use pattern to determine validity if defined
valid_value = string.match(val.id,'^'..conf.pattern..'$')
elseif conf.patterns then
for _,pattern in ipairs(conf.patterns) do
valid_value = val.id:match('^'..pattern..'$')
if valid_value then break end
end
elseif conf.valid then -- otherwise use function to determine validity
valid_value = require(config.auxiliary)[conf.valid](val.id)
else -- no validation possible
valid_value = val.id
end
if valid_value then
local newlink
local label = conf.label
if not label or nextid>1 then
label = tostring(nextid)
end
if conf.link then
valid_value = valid_value:gsub('%%', '%%%%')
newlink = '[' .. mw.ustring.gsub(conf.link,'%$1',valid_value) .. ' ' .. label .. ']'
else
newlink = valid_value
end
link = link .. '<span>'..tooltip(newlink,val.name)..'</span>'
end
end
if valid_value then
link = link .. getCatForId(conf.category or conf[1])
else
--local preview = require("Module:If preview")
local wdlink = qid and ':wikidata:' .. qid .. '#P' .. conf.property .. * or *
link = link .. ''
if conf.errorcat then
link = link .. addCat(conf.errorcat)
else
link = link .. getCatForId(conf.category or conf[1],true)
end
link = link .. addCat(config.i18n.allfaultycat,conf[1])-- .. preview._warning({'The '..conf[1]..' id '..val..' is not valid.'})
end
return link
end  
--==========================================================================
-- Main
--==========================================================================
function p.authorityControl
local function resolveQID(qid)
if qid then
qid = 'Q'..mw.ustring.gsub(qid, '^[Qq]', '')
if mw.wikibase.isValidEntityId(qid) and mw.wikibase.entityExists(qid) then
local sitelink = mw.wikibase.getSitelink(qid)
if sitelink then
return mw.wikibase.getEntityIdForTitle(sitelink) or mw.wikibase.getEntity(qid).id
end
return mw.wikibase.getEntity(qid).id
end
end
end
local conf = config.config
local parentArgs = :getParent.args
local auxCats = ''
local rct = false -- boolean to track if there are any links to be returned
local qid,topic
local wikilink = function(qid,hideifequal)
local label,sitelink = mw.wikibase.getLabel(qid),mw.wikibase.getSitelink(qid)
if label then
if sitelink then
local target = mw.title.new(sitelink)
if target==title or (target.isRedirect and target.redirectTarget==title) then -- do not link
return label
else -- make wikilink to article
return * .. label .. *
end
else
return label
end
else
auxCats = auxCats .. needsAttention('L')
return qid
end
end
if namespace == 0 then
qid = mw.wikibase.getEntityIdForCurrentPage
end
if qid then -- article is connected to Wikidata item
if parentArgs.qid and (resolveQID(parentArgs.qid) ~= qid) then -- non-matching qid parameter
auxCats = auxCats .. needsAttention('D')
end
else -- page is not connected to any Wikidata item
qid = resolveQID(parentArgs.qid) -- check qid parameter if no wikidata item is connected
if qid then -- qid parameter is valid, set topic to display
topic = mw.wikibase.getLabel(qid)
if topic then
if mw.ustring.lower(title.subpageText) == mw.ustring.lower(topic) then -- suppress topic display if subpagename equals topic up to case change
topic = nil
end
if topic and mw.wikibase.getSitelink(qid) then -- make wikilink to article
topic = * .. topic .. *
end
else
auxCats = auxCats .. needsAttention('L')
end
elseif parentArgs.qid and parentArgs.qid~='' then -- invalid qid has been supplied, add to tracking cat
auxCats = auxCats .. needsAttention('Q')
end
end
local qids = {} -- setup any additional QIDs
if parentArgs.additional=='auto' and qid then -- check P527 for parts to add additional qids
local checkparts = function(property)
local parts = mw.wikibase.getBestStatements(qid,property)
if parts then
for _,part in ipairs(parts) do
if part.mainsnak.datavalue and part.mainsnak.datavalue.value.id then
local resolvedqid = resolveQID(part.mainsnak.datavalue.value.id)
if resolvedqid then
table.insert(qids,resolvedqid)
end end end end end
for _,part in ipairs(config.auto_additional) do
checkparts('P'..tostring(part))
end
elseif parentArgs.additional and parentArgs.additional ~= '' then
for _,v in ipairs(mw.text.split(parentArgs.additional,"%s*,%s*")) do
v = resolveQID(v)
if v then
if v == qid then -- duplicate of qid parameter
auxCats = auxCats .. needsAttention('R')
end
table.insert(qids,v)
else -- invalid QID specified
auxCats = auxCats .. needsAttention('A')
end
end
end  
local sections = {}
local localparams = false
local numsections = 0
for _,_ in ipairs(config.sections) do numsections = numsections + 1 end
for _ = 1,#qids+numsections do table.insert(sections,{}) end
local qslink = '' -- setup link to add using QuickStatements  
-- check which identifiers to show/suppress in template
local show = {} -- setup list
local showall = true
local function stripP(pid)
if pid:match("^[Pp]%d+$") then
pid = mw.ustring.gsub(pid,'[Pp]','') --strip P from property number
end
if pid:match("^%d+$") then
return tonumber(pid)
end
end
local function addshowlist(list)
if list and list ~= '' then
for _,v in ipairs(mw.text.split(string.lower(list),"%s*,%s*")) do
local vprop = stripP(v)
if vprop then -- e.g. show=P214 to show one particular property
show[vprop] = true
else -- e.g. show=arts to use whitelist
if config.whitelists[v] then
for _,w in ipairs(config.whitelists[v].properties) do
show[w] = true
end
end
end
end
showall = false
end
end
addshowlist(.args.show) -- check show= parameter on wrapper template