Module:Authority control

Documentation for this module may be created at Module:Authority control/doc

require('strict')
local config = mw.loadData('Module:Authority control/config')
local p = {}
local title = mw.title.getCurrentTitle()
local namespace = title.namespace
local testcases = (string.sub(title.subpageText,1,9) == 'testcases')

local function needsAttention(sortkey)
	return '[[Category:Pages with authority control identifiers needing attention|' .. 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 = '[[Category:'..cat..'|' .. sortkey .. title.text .. ']]'
		else
			cat = '[[Category:'..cat..']]'
		end
		cat = cat .. redlinkcat
		return cat
	else
		return ''
	end
end

local function getCatForId(id,faulty)
	local cat = 'Articles with '
	if faulty then cat = cat .. 'faulty ' end
	cat = cat .. id .. ' 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 function makelink(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('Module:Authority control/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 class="uid">'..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 .. '[[File:345-409 Ambox warning centered.svg|20px|frameless|link=' .. wdlink .. '|The ' .. conf[1] .. ' id ' .. val.id .. ' is not valid.]]'
		if conf.errorcat then
			link = link .. addCat(conf.errorcat)
		else
			link = link .. getCatForId(conf.category or conf[1],true)
		end
		link = link .. addCat('All articles with faulty authority control information',conf[1])-- .. preview._warning({'The '..conf[1]..' id '..val..' is not valid.'})
	end
	return link
end

--[[==========================================================================]]
--[[                                   Main                                   ]]
--[[==========================================================================]]
function p.authorityControl(frame)
	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
				return qid
			end
		end
	end
	local conf = config.config
	local parentArgs = frame:getParent().args
	local auxCats = ''
	local rct = false -- boolean to track if there are any links to be returned
	local qid,topic
	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 and (mw.ustring.lower(title.subpageText) == mw.ustring.lower(topic)) then -- suppress topic display if subpagename equals topic up to case change
				topic = nil
			end
		elseif parentArgs.qid and parentArgs.qid~='' then -- invalid qid has been supplied, add to tracking cat
			auxCats = auxCats .. needsAttention('Q')
		end
	end
	if topic and mw.wikibase.getSitelink(qid) then -- make wikilink to article
		topic = '[[' .. mw.wikibase.getSitelink(qid) .. '|' .. topic .. ']]'
	end
	local qids = {} -- setup any additional QIDs
	if parentArgs.additional and parentArgs.additional ~= '' then
		for _,v in ipairs(mw.text.split(parentArgs.additional,"%s*,%s*")) do
			v = resolveQID(v)
			if v == qid then -- duplicate of qid parameter
				auxCats = auxCats .. needsAttention('R')
			end
			table.insert(qids,v)
		end
	end

	local sections = {}
	local numsections = 0
	for _,_ in ipairs(config.sectionNames) 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
			pid = tonumber(pid)
		end
		return pid
	end
	local function addshowlist(list)
		if list and list ~= '' then
			for _,v in ipairs(mw.text.split(string.lower(list),"%s*,%s*")) do
				v = stripP(v)
				if type(v) == 'string' then -- 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
				else -- e.g. show=214 to show one particular property
					show[v] = true
				end
			end
			showall = false
		end
	end
	addshowlist(frame.args.show) -- check show= parameter on wrapper template
	addshowlist(parentArgs.show or parentArgs.country) -- check show parameter on article template
	if parentArgs.suppress then
		local suppresslist = mw.text.split(parentArgs.suppress,"%s*,%s*") -- split parameter by comma
		for _,v in ipairs(suppresslist) do
			v=stripP(string.upper(v))
			show[v] = false
			auxCats = auxCats .. '[[Category:Articles with suppressed authority control identifiers]]'
		end
	end
	
	local function makeSections(qid,addit)
		local tval = {}
		local function parameter_is_used(property)
			local used = false
			if property then
				if tval[property] then
					if tval[property][1] then
						used = true
					end
				elseif tval[property] == false then -- property has been manually suppressed
					used = true
				end
			end
			return used
		end
		for _, params in ipairs(conf) do
			tval[params.property] = getIdsFromWikidata(qid, 'P' .. params.property) -- setup table for values with property number as key
			local showb = true
			if (show[params.property] == nil) and (show[string.upper(params[1])] == nil ) then
				showb = showall -- if not specified then depends on showall
			elseif (show[params.property] == false) or (show[string.upper(params[1])] == false) then -- if either are false then id will be suppressed
				showb = false
			end
			if not showb then
				tval[params.property] = false -- indicates the identifier is suppressed
			elseif not addit then
				local val = parentArgs[mw.ustring.lower(params[1])] or parentArgs[params[1]]
				if val and val ~= '' then -- add local parameter to list if not already in
					local bnew = true
					for _, w in pairs(tval[params.property]) do
						if val == w.id then
							bnew = false
						end
					end
					if bnew then -- add new value to table
						if qid then
							qslink = qslink .. '%7C%7C' .. qid .. '%7CP' .. params.property .. '%7C%22' .. mw.uri.encode(val,"PATH") .. '%22%7CS143%7CQ328'
						end
						table.insert(tval[params.property],{id=val,name=''})
					end
				end
			end
			local suppress = false
			if params.suppressedbyproperty then
				for _,sc in ipairs(params.suppressedbyproperty) do
					if parameter_is_used(sc) then
						suppress = true
					end
				end
			end
			if tval[params.property] ~= false and not suppress then
				local tlinks = {} -- setup table for links
				local nextIdVal = 1
				local row = ''
				for _,val in ipairs(tval[params.property]) do
					local link = makelink(params,val,nextIdVal,qid)
					row = row .. link
					table.insert(tlinks,link)
					nextIdVal = nextIdVal + 1
				end
				if nextIdVal>=2 then
					row = row .. '\n'
					table.insert(sections[addit or params.section],row)
					rct = true
				end
			end
		end
	end
	local function pencil(qid)
		if not qid then
			return ''
		end
		local args = { pid = 'identifiers' } -- #target the list of identifiers
		args.qid = qid
		return require('Module:EditAtWikidata')._showMessage(args)
	end

	makeSections(qid,false)
	for c = 1,#qids do
		makeSections(qids[c],numsections+c)
	end

	--configure Navbox
	local outString = ''
	if rct then -- there is at least one link to display
		local Navbox = require('Module:Navbox')
		local sect,lastsect = 0,0
		local navboxArgs = {
			name  = 'Authority control',
			navboxclass = 'authority-control',
			bodyclass = 'hlist',
			state = parentArgs.state or 'autocollapse',
			navbar = 'off'
		}
		for c=1,numsections+#qids do
			if #sections[c] ~= 0 then -- section is non-empty
				sect = sect + 1
				lastsect = c
				local sectname
				if c <= numsections then -- regular section
					sectname = config.sectionNames[c]
				else -- section from additional qid
					sectname = mw.wikibase.getLabel(qids[c-numsections]) .. pencil(qids[c-numsections])
				end
				navboxArgs['group' .. c] = sectname
				navboxArgs['list' .. c] = table.concat(sections[c])
			end
		end
		local aclink = '[[Help:Authority control|Authority control]]'
		if qslink ~= '' then
			qslink = '<span class="qs autoconfirmed-show">&#32;[[File:Commons to Wikidata QuickStatements.svg|20px|link=https://quickstatements.toolforge.org/#/v1=' .. qslink .. '|Add values to Wikidata.]]</span>'
		end
		if topic then -- display in expanded form with topic
			navboxArgs.title = aclink .. ' &ndash; ' .. topic .. pencil(qid) .. qslink
		elseif sect == 1 then -- special display when only one section
			if lastsect == 1 or lastsect == 8 then -- no special label when only general or other IDs are present
				navboxArgs['group' .. lastsect] = aclink .. pencil(qid) .. qslink
			elseif lastsect <= numsections then -- other regular section
				navboxArgs['group' .. lastsect] = aclink .. ': ' .. config.sectionNames[lastsect] .. pencil(qid) .. qslink
			else -- section from additional qid
				navboxArgs['group' .. lastsect] = aclink .. ': ' .. navboxArgs['group' .. lastsect] .. qslink
			end
		else -- add title to navbox
			navboxArgs.title = aclink .. pencil(qid) .. qslink
		end
		outString = Navbox._navbox(navboxArgs)
	end

	if parentArgs.state then
		if (parentArgs.state ~= 'collapsed') and (parentArgs.state ~= 'expanded') and (parentArgs.state ~= 'autocollapse') then --invalid state parameter
			auxCats = auxCats .. needsAttention('S')
		end
	end
	if testcases then
		auxCats = mw.ustring.gsub(auxCats, '(%[%[)(Category)', '%1:%2') --for easier checking
	end

	--out
	outString = outString..auxCats
	if namespace ~= 0 then
		outString = mw.ustring.gsub(outString,'(%[%[)(Category:Articles)([^%|%]]+)%|?[^%|%]]*(%]%])','%1:%2%3%4')
		outString = mw.ustring.gsub(outString,'(%[%[)(Category:All articles)([^%|%]]+)%|?[^%|%]]*(%]%])','%1:%2%3%4')
	end
	local check = require('Module:Check for unknown parameters')._check
	local sortkey
	if namespace == 0 then
		sortkey = '*' .. title.text
	else
		sortkey = title.fullText
	end
	local tracking = check({
		['unknown']='[[Category:Pages using authority control with parameters|' .. sortkey .. ']]',
		['preview']='Page using [[Template:Authority control]] with "_VALUE_", please move this to Wikidata.',
		'show', 'country', 'suppress', 'additional', 'qid', 'state'
		}, parentArgs)
	if namespace == 0 -- mainspace
		or namespace == 14 -- category
		or namespace == 2 -- user
		or namespace == 118 then -- draft
		outString = outString .. tracking
	end
	return outString
end

-- Creates a human-readable standalone wikitable version of conf, and tracking categories with page counts, for use in the documentation
function p.docConfTable(frame)
	local getlink = require("Module:Wikidata table")._getLink
	local function checkcat(category,label)
		local ret='[[:Category:'..category..'|'..label..']]'
		if mw.title.new(category,14).exists == false then
			ret = ret..' <span class="plainlinks" style="font-size:85%;">&#91;['..tostring(mw.uri.fullUrl('Category:'..category,'action=edit&preload=Template:Authority_control/preload'))..' create]&#93;</span>'
		end
		return ret
	end
	local doc = ''
	local a, P, f = 0, 0, 0 --cumulative sums
	local count = frame.args.count or false
	local columns = 3 + (count and 1 or 0)
	local lang = mw.getContentLanguage()
	local row = function(conf)
		local category = conf.category or conf[1]
		local articleCat = 'Articles with '..category..' identifiers'
		local articleCount = mw.site.stats.pagesInCategory(articleCat,'pages')
		local errorCat = conf.errorcat or 'Articles with faulty '..(conf.category or conf[1])..' identifiers'
		local errorCount =  mw.site.stats.pagesInCategory(errorCat,'pages')
		P = P + 1 --property count
		a = a + articleCount
		f = f + errorCount
		local example = mw.wikibase.getBestStatements('P'..conf.property,'P1855') or ''
		if example then
			example = example[1].qualifiers['P'..conf.property][1].datavalue.value
			example = mw.getCurrentFrame():expandTemplate{title = "Hlist", args = {'\n' .. makelink(conf,{id=example},1)}} .. '\n'
		end
		local name = mw.wikibase.getBestStatements('P'..conf.property,"P1629")
		if name and name[1] and name[1].mainsnak.datavalue.value.id then
			name = getlink(name[1].mainsnak.datavalue.value.id)
		else
			name = ''
		end
		local out = ''
		if conf.remark then
			out = out .. '<tr><td rowspan=2>'
		else
			out = out .. '<tr><td>'
		end
		out = out .. name .. '</td>' ..
			'<td style="text-align: center">' .. config.sectionNames[conf.section] .. '</td>' ..
			'<td data-sort-value=' .. conf.property .. '>' .. frame:expandTemplate{title='Wikidata property link',args={id='f',conf.property}} .. '</td>' ..
			'<td>' .. example .. '</td>'
		if count then
			out = out .. '<td style="text-align: right;">'..checkcat(articleCat,lang:formatNum(articleCount))..' ('..checkcat(errorCat,errorCount)..')</td>'
		end
		out = out .. '</tr>'
		if conf.remark then
			out = out .. "<tr class='expand-child'><td colspan=" .. columns .. ">'''Remarks:''' "..conf.remark .. "</td></tr>"
		end
		return out
	end
	local doc = '<table class="wikitable sortable">' ..
	  '<tr><th>Identifier</th>' ..
	  '<th>Section</th>' ..
	  '<th data-sort-type=number>Wikidata property</th>' ..
	  '<th>Appears as</th>'
	if count then
	 	doc = doc .. '<th>[[:Category:Articles with authority control information|Articles]] ([[:Category:Articles with faulty authority control information|Faults]])</th>'
	end
	doc = doc .. '</tr>'
	for _, conf in pairs(config.config) do
		doc = doc .. row(conf)
	end
	if count then
		doc = doc .. '<tr><th style="text-align: right;" colspan=' .. columns-1 .. '>Totals</th>' ..
			'<th style="text-align: right;">' .. P .. '</th>' ..
			'<th style="text-align: right;">' .. lang:formatNum(a) .. ' ([[:Category:All articles with faulty authority control information|' .. f .. ']])</th></tr>'
	end
	doc = doc .. '</table>'
	return doc
end

function p.errorTable(frame)
	local Table = '<table class="wikitable sortable">'..
	  '<tr><th>Code</th>'..
	  '<th>Wikidata property</th>'..
	  '<th>Faulty IDs</th>'..
	  '<th>[[:Category:Articles with faulty authority control information|Tracking category]]</th></tr>'
	local f, P = 0, 0, 0 --cumulative sums
	for _, conf in pairs(config.config) do
		local category = conf.errorcat or 'Articles with faulty '..(conf.category or conf[1])..' identifiers'
		local count =  mw.site.stats.pagesInCategory(category,'pages')
		if count > 0 then
			P = P + 1
			f = f + count
			Table = Table..'<tr><th>[['..(conf.idlink or conf[1]..' (identifier)')..'|'..conf[1]..']]</th>'..
				'<td>'..frame:expandTemplate{ title = 'Wikidata property link', args = { id = 'f', conf.property } } .. '</td>'..
				'<td style="text-align:center;">'..tostring(count)..'</td>'..
				'<td>[[:Category:'..category..']]</td></tr>'
		end
	end
	Table = Table..'<tr><th colspan=2 style="text-align: right;">Totals</th>'..
		'<th style="text-align:center;">' .. '[[:Category:All articles with faulty authority control information|' .. tostring(f) .. ']]</th>'..
		'<th style="text-align:center;">'..tostring(P)..'</th></tr></table>'
	return Table
end

function p.whitelisttable(frame)
	local Table = '<table class="wikitable sortable">'..
	  '<tr><th>Code</th>'..
	  '<th>Topic</th>'..
	  '<th>Identifiers</th></tr>'
	for code, wlist in pairs(config.whitelists) do
		Table = Table .. '<tr><th>' .. code .. '</th>'..
			'<td>[[' .. mw.wikibase.getSitelink('Q' .. wlist.topic) .. ']]</td>'
		local plist = {}
		for _, property in pairs(wlist.properties) do
			table.insert(plist,frame:expandTemplate{title='Wikidata property link', args={'P' .. property}})
		end
		Table = Table .. '<td>' .. table.concat(plist,', ') .. '</td></tr>'
	end
	Table = Table .. '</table>'
	return Table
end

function p.sectiontable(frame)
	local Table = '<table class="wikitable sortable">'..
	  '<tr><th>Section</th>'..
	  '<th>Description</th>'..
	  '<th>Identifiers</th></tr>'
	for number,section in ipairs(config.sectionNames) do
		Table = Table .. '<tr><th>' .. number .. '</th>' ..	'<td>' .. section .. '</td>'
		local plist = {}
		for _,id in pairs(config.config) do
			if id.section == number then
				table.insert(plist,frame:expandTemplate{title='Wikidata property link', args={'P' .. id.property}})
			end
		end
		Table = Table .. '<td>' .. table.concat(plist,', ') .. '</td></tr>'
	end
	Table = Table .. '</table>'
	return Table
end

-- Main/External Call for Pages with authority control identifiers
function p.autoDetect(frame)
	local function whichTOC(frame) -- standardize TOC behavior via {{CatAutoTOC}}
		return frame:expandTemplate{ title = 'CatAutoTOC', args = { align = 'center' } }
	end
	local ac_conf = require('Module:Authority control/config').config
	local rmCats = require('Module:Suppress categories').main
	--For use in [[Category:Articles with faulty authority control information]], i.e. on [[Category:Articles with faulty VIAF identifiers]]
	local function wpfaulty( frame, id )
		for _, conf in pairs(ac_conf) do
			if conf.category == id or conf[1] == id then
				local outString = frame:expandTemplate{ title = 'Cat more', args = {'Wikipedia:Authority control', conf.idlink or conf[1]..' (identifier)', ':d:Property:P'..conf.property} }
					.. frame:expandTemplate{ title = 'Possibly empty category' }
					.. frame:expandTemplate{ title = 'Wikipedia category', args = { hidden = 'yes', tracking = 'yes' } }
					.. frame:expandTemplate{ title = 'Polluted category' }
					.. whichTOC( frame )
					.. '\nPages in this category should only be added by [[Module:Authority control]].'
					.. addCat('Articles with '..id..' identifiers')
					.. addCat('Articles with faulty authority control information',id)
				return outString
			end
		end
		return ''
	end
	--For use in [[Category:Articles with authority control information]], i.e. on [[Category:Articles with VIAF identifiers]]
	local function wp(frame,id )
		for _, conf in pairs( ac_conf ) do
			if conf.category == id or conf[1] == id then
				local link = '[[' .. (conf.idlink or conf[1] .. ' (identifier)') .. '|' .. conf[1] .. ']]'
				local outString = frame:expandTemplate{ title = 'Category explanation', args = {'articles with '..link..' identifiers.'..' Please do not add [[Wikipedia:Categorization#Subcategorization|subcategories]].'} }
					.. frame:expandTemplate{ title = 'Cat more', args = {'Wikipedia:Authority control', ':d:Property:P'..conf.property} }
					.. frame:expandTemplate{ title = 'Possibly empty category' }
					.. frame:expandTemplate{ title = 'Wikipedia category', args = { hidden = 'yes', tracking = 'yes' } }
					.. whichTOC( frame )
					.. '\nPages in this category should only be added by [[Module:Authority control]].'
					.. addCat('Articles with authority control information',id)
				return outString
			end
		end
		return ''
	end
	if namespace == 14 then --cat space
		local wpfaultyID = mw.ustring.match(title.text, 'Articles with faulty ([%w%.%- ]+) identifiers')
		local wpID       = mw.ustring.match(title.text, 'Articles with ([%w%.%- ]+) identifiers')
		if wpfaultyID then
			return wpfaulty(frame,wpfaultyID)-- must be before wpID check, in case they both match
		elseif wpID then
			return wp(frame, wpID)-- to keep the regex simple
		else
			return needsAttention('U')
		end
	end
	return ''
end

return p