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Modul:Author

require('strict')

local p = {}

-- Local variables
local getArgs = require('Modul:Arguments').getArgs
local yesno = require('Modul:Yesno')
local construct_header = require('Modul:Header structure').construct_header

local dateModule = require('Modul:Era')
local TableTools = require('Modul:TableTools')
local ordinal = require('Modul:Ordinal')._ordinal

local categories = {} -- List of categories to add page to.

local function preprocess(args)
	return mw.getCurrentFrame():preprocess(args)
end

local wd_properties = {
	birth = 'P569',
	death = 'P570',
	workperiodstart = 'P2031',
	workperiodend = 'P2032',
	floruit = 'P1317',
	
	firstname = 'P735',
	familyname = 'P734',
	gender = 'P21',
	image = 'P18',
	instanceof = 'P31',
	medialegend = 'P2096',
	
	nationalities = 'P27',
	occupations = 'P106',
	religions = 'P140',
	movements = 'P135',
	ideologies = 'P1142',
	employer = 'P108',
	positionheld = 'P39',
	awardreceived = 'P166',
	memberof = 'P463',
	canonizationstatus = 'P411',
	contributedto = 'P3919',
	socialclassification = 'P3716',
	instrument = 'P1303',
	describedby = 'P1343'
}

--------------------------PENTRU LIMBA ROMÂNĂ-----------------------------------
-- Localizează tipul datei în limba română, pentru a ajuta la formarea numelor categoriilor.
local function localiseYearType(year_type, genitive, plural)
	-- valori implicite pentru argumente
	genitive = genitive or false
	plural = plural or false
	-- 
	local value = ''
	if year_type == 'birth' then
		if genitive then	value = 'nașterii'
		elseif plural then	value = 'nașteri'
		else				value = 'naștere'
		end
	elseif year_type == 'death' then
		if genitive then	value = 'decesului'
		elseif plural then	value = 'decese'
		else				value = 'deces'
		end
	elseif year_type == 'workperiodstart' then
		if genitive then	value = 'începutului activității'
		elseif plural then	value = 'autori care și-au început activitatea'
			-- exemplu utilizare: „Autori care și-au început activitatea în 1903”
		else				value = 'început de activitate'
		end
	elseif year_type == 'workperiodend' then
		if genitive then	value = 'încheierii activității'
		elseif plural then	value = 'autori care și-au încheiat activitatea'
		else				value = 'încheiere de activitate'
		end
	else
		value = year_type
	end
	return value
end

--------------------------------------------------------------------------------
-- Add a category to the current list of categories. Do not include the Category prefix.
local function addCategory(category)
	table.insert(categories, category)
end

--------------------------------------------------------------------------------
-- Remove a category. Do not include the Category prefix.
local function removeCategory(category)
	for catPos, cat in pairs(categories) do
    	if cat == category then
    		table.remove(categories, catPos)
    	end
  	end
end

--------------------------------------------------------------------------------
-- Get wikitext for all categories added using addCategory.
local function getCategories()
	categories = TableTools.removeDuplicates(categories)
	table.sort(categories)
	local out = ''
	for _, cat in pairs(categories) do
		out = out .. '[[Categorie:' .. cat .. ']]'
	end
	return out
end

local function normalize_args(args)
	-- aliases
	local dup_cat = ''
	local oldKeys = {}
	local newArgs = {}
	
	for k, v in pairs(args) do
		local newkey = string.lower(string.gsub(string.gsub(tostring(k), '-', '_'), ' ', '_'))
		if newkey ~= tostring(k) then
			if args[newkey] then
				addCategory('Pagini care folosesc argumente duplicate în apelarea formatelor')
			end
			newArgs[newkey] = newArgs[newkey] or v
			table.insert(oldKeys, tostring(k))
		end
	end
	for k, v in pairs(newArgs) do
		args[k] = v
	end
	for k, v in pairs(oldKeys) do
		args[v] = nil
	end
	
	args.wikidata = args.wikidata or args.wikidata_id
	args.wikidata_id = nil
	
	-- Fetch entity object for Wikidata item connected to the current page
	-- Let manually-specified Wikidata ID override if given and valid
	if args.wikidata and mw.wikibase.isValidEntityId(args.wikidata) then
		args.wd_entity = mw.wikibase.getEntity(args.wikidata)
	else
		args.wd_entity = mw.wikibase.getEntity()
	end
	
	args.use_initials = yesno(args.use_initials) ~= false and args.last_initial ~= '!NO_INITIALS'
	args.nocat = yesno(args.nocat) or false
	
	return args
end

--------------------------------------------------------------------------------
-- Get the actual parentheses-enclosed HTML string that shows the dates.
local function getFormattedDates(birthyear, deathyear, workPeriodYears)
	if not birthyear and not deathyear and not workPeriodYears then
		return nil
	end
	
	local dates = '<br />('
	
	local birthNotFloruit = birthyear and not birthyear:match("^fl%.")
	local deathNotFloruit = deathyear and not deathyear:match("^fl%.")
	if birthNotFloruit or deathNotFloruit or not workPeriodYears then
		if birthyear then
			if birthNotFloruit and deathyear and not deathNotFloruit then
				dates = dates .. "n. "
			end
			dates = dates .. birthyear
		end
		if (birthyear or deathyear) and birthyear ~= deathyear then
			-- Add spaces if there are spaces in either of the dates.
			local spaces = ''
			if string.match((birthyear or '') .. (deathyear or ''), ' ') then
				spaces = ' '
			end
			dates = dates .. spaces .. '–' .. spaces
		end
		if deathyear and birthyear ~= deathyear then
			if deathNotFloruit and birthyear and not birthNotFloruit then
				dates = dates .. "d. "
			end
			dates = dates .. deathyear
		end
	else
		dates = dates .. workPeriodYears
		addCategory('Autori cu date floruit')
	end
	if birthyear or deathyear or workPeriodYears then
		dates = dates .. ')'
	end
	return dates
end

--------------------------------------------------------------------------------
-- Take a statement of a given property and make a human-readable year string
-- out of it, adding the relevant categories as we go.
-- @param table statement The statement.
-- @param string type One of 'birth' or 'death'.
local function getYearStringFromSingleStatement(statement, year_type)
	local snak = statement.mainsnak
	-- We're not using mw.wikibase.formatValue because we only want years.
	
	-- No value. This is invalid for birth dates (should be 'somevalue'
	-- instead), and indicates 'still alive' for death dates.
	if snak.snaktype == 'novalue' and year_type == 'birth' then
		addCategory('Autori cu data nașterii lipsă')
		return nil
	end
	if snak.snaktype == 'novalue' and year_type == 'death' then
		addCategory('Autori în viață')
		return nil
	end
	
	-- Unknown value.
	if snak.snaktype == 'somevalue' then
		addCategory('Autori cu data ' .. localiseYearType(year_type, true) .. ' necunoscută')
		return '?'
	end
	
	-- Extract year from the time value.
	local _, _, extractedYear = string.find(snak.datavalue.value.time, '([%+%-]%d%d%d+)%-')
	local year = math.abs(tonumber(extractedYear))
	-- „Autori din epoca ...” (vezi [[Modul:Era]])
	addCategory('Autori din ' .. dateModule.era(extractedYear))
	
	 -- Century & millennium precision.
	if snak.datavalue.value.precision == 6 or snak.datavalue.value.precision == 7 then
		local ceilfactor = 100
		local precisionName = 'secolul'
		if snak.datavalue.value.precision == 6 then
			ceilfactor = 1000
			precisionName = 'mileniul'
		end
		local cent = math.max(math.ceil(year/ceilfactor), 1)
		local suffixed_cent = ordinal(cent, false, 'm') 
		-- 'm' este pentru genul masculin, vezi [[Modul:Ordinal]]
		year = precisionName .. ' ' .. suffixed_cent
		addCategory('Autori cu data ' .. localiseYearType(year_type, true) .. ' aproximativă')
	elseif snak.datavalue.value.precision == 8 then -- decade precision
		year = 'anii ' .. math.floor(tonumber(year)/10) * 10
		addCategory('Autori cu data ' .. localiseYearType(year_type, true) .. ' aproximativă')
	end
	if tonumber(extractedYear) < 0 then
		year = year .. ' î.e.n.'
	end
	
	-- Remove from 'Living authors' if that's not possible.
	if tonumber(extractedYear) < tonumber(os.date('%Y') - 110) then
		removeCategory('Autori în viață')
	end
	
	-- Add to e.g. 'YYYY births' category (before we add 'c.' or 'fl.' prefixes).
	if year_type == 'birth' or year_type == 'death' then
		-- mw.logObject('Wikidata cat')
		-- mw.logObject(year .. ' ' .. year_type .. 's')
		addCategory(localiseYearType(year_type, false, true) .. ' în ' .. year)
	end
	
	-- Extract circa (P1480 = sourcing circumstances, Q5727902 = circa)
	if statement.qualifiers and statement.qualifiers.P1480 then
		for _,qualifier in pairs(statement.qualifiers.P1480) do
			if qualifier.datavalue and qualifier.datavalue.value.id == 'Q5727902' then
				addCategory('Autori cu data ' .. localiseYearType(year_type, true) .. ' aproximativă')
				year = 'cca. ' .. year
			end
		end
	end
	
	-- Add floruit abbreviation.
	if year_type == 'floruit' then
		year = 'fl. ' .. year
	end
	
	return year
end

--------------------------------------------------------------------------------
-- Get a given or family name property.
-- This concatenates (with spaces) all statements of the given property in order of the series ordinal (P1545) qualifier.
-- @TODO fix this.
local function getNameFromWikidata(item, property)
	local statements = item:getBestStatements(property)
	local out = {}
	if statements[1] and statements[1].mainsnak.datavalue then
		local itemId = statements[1].mainsnak.datavalue.value.id
		table.insert(out, mw.wikibase.label(itemId) or '')
	end
	return table.concat(out, ' ')
end

--------------------------------------------------------------------------------
local function getPropertyValue(item, property)
	local statements = item:getBestStatements(property)
	if statements[1] and statements[1].mainsnak.datavalue then
		return statements[1].mainsnak.datavalue.value
	end	
end

--------------------------------------------------------------------------------
-- The 'Wikisource' format for a birth or death year is as follows:
--     "?" or empty for unknown (or still alive)
--     Use î.e.n. for years before year 1
--     Approximate dates:
--         Decades or centuries: "1930s" or "20th century"
--         Circa: "c/1930" or "c. 1930" or "ca 1930" or "circa 1930"
--         Tenuous year: "1932/?"
--         Choice of two or more years: "1932/1933"
-- This is a slightly overly-complicated function, but one day will be able to be deleted.
-- @param string type Either 'birth' or 'death'
-- @return string The year to display
local function formatWikisourceYear(year, year_type)
	if not year then
		return nil
	end
	
	-- mw.logObject('formatWikisourceYear')
	
	local yearParts = mw.text.split(year, '/', true)
	-- mw.logObject('yearParts')
	-- mw.logObject(yearParts)
	
	-- Ends in a question mark.
	if yearParts[2] == '?' then
		addCategory('Autori cu data ' .. localiseYearType(year_type, true) .. ' necunoscută')
		if tonumber(yearParts[1]) then
			-- mw.logObject('unknown')
			-- mw.logObject(yearParts[1] .. ' ' .. year_type .. 's')
			addCategory('Autori din ' .. dateModule.era(yearParts[1]))
			addCategory(localiseYearType(year_type, false, true) .. ' în ' .. yearParts[1])
		else
			addCategory('Autori cu data ' .. localiseYearType(year_type, true) .. ' non-numerică')
		end
		return yearParts[1] .. '?'
	end
	
	-- Starts with one of the 'circa' abbreviations
	local circaNames = {'ca.', 'c.', 'ca', 'c', 'circa', 'cca', 'cca.'}
	for _, circaName in pairs(circaNames) do
		local yearNumber
		local isCirca = false
		if yearParts[1] == circaName then
			yearNumber = mw.text.trim(yearParts[2])
			isCirca = true
		elseif string.match(yearParts[1], '^' .. circaName) then
			yearNumber = string.gsub(yearParts[1], '^' .. circaName, '')
			isCirca = (tonumber(yearNumber) ~= nil)
		end
		
		if isCirca then
			addCategory('Autori cu data ' .. localiseYearType(year_type, true) .. ' aproximativă')
			
			if tonumber(yearNumber) then
				yearNumber = tonumber(yearNumber)
				-- mw.logObject(yearNumber)
				addCategory('Autori din ' .. dateModule.era(tostring(yearNumber)))
				addCategory(localiseYearType(year_type, false, true) .. ' în ' .. year)
			else
				addCategory('Autori cu data ' .. localiseYearType(year_type, true) .. ' non-numerică')
			end
			
			return 'cca. ' .. yearNumber
		end
	end
	
	-- If there is more than one year part, and they're all numbers, add categories.
	local allPartsAreNumeric = true
	if #yearParts > 1 then
		for _, yearPart in pairs(yearParts) do
			if tonumber(yearPart) then
				-- mw.logObject('numeric')
				-- mw.logObject(yearPart .. ' ' .. year_type .. 's')
				addCategory(localiseYearType(year_type, false, true) .. ' în ' .. year)
				addCategory('Autori din ' .. dateModule.era(yearPart))
			else
				allPartsAreNumeric = false
			end
		end
		if allPartsAreNumeric then
			addCategory('Autori cu data nașterii aproximativă')
		end
	elseif #yearParts == 1 and not tonumber(year) then
		allPartsAreNumeric = false
	end
	
	-- Otherwise, just use whatever's been given
	if not allPartsAreNumeric then
		addCategory('Autori cu data ' .. localiseYearType(year_type, true) .. ' non-numerică')
	end
	
	if #yearParts == 1 or allPartsAreNumeric == false then
		-- mw.logObject('not numeric')
		-- mw.logObject(year .. ' ' .. year_type .. 's')
		addCategory(localiseYearType(year_type, false, true) .. ' în ' .. year)
	end
	return year
end

--[=[
Get a formatted year of the given property and add to the relevant categories
]=]
local function formatWikidataYear(item, year_type)
	-- Check sanity of inputs
	if not item or not year_type or not wd_properties[year_type] then
		return nil
	end
	
	local property = wd_properties[year_type]
	
	-- Get this property's statements.
	local statements = item:getBestStatements(property)
	if #statements == 0 then
		-- If there are no statements of this type, add to 'missing' category.
		if year_type == 'birth' or year_type == 'death' then
			addCategory('Autori cu data ' .. localiseYearType(year_type, true) .. ' lipsă')
		end
		local isHuman = item:formatPropertyValues(wd_properties['instanceof']).value == 'human'
		if year_type == 'death' and isHuman then
			-- If no statements about death, assume to be alive.
			addCategory('Autori în viață')
		end
	end
	
	-- Compile a list of years, one from each statement.
	local years = {}
	for _, statement in pairs(statements) do
		local year = getYearStringFromSingleStatement(statement, year_type)
		if year then
			table.insert(years, year)
		end
	end
	years = TableTools.removeDuplicates(years)
	
	-- If no year found yet, try for a floruit date. Make an exception for workperiod
	if (#years == 0 or table.concat(years, '/') == '?') and year_type ~= "workperiodstart" and year_type ~= "workperiodend" then
		local floruitStatements = item:getBestStatements(wd_properties["floruit"])
		for _, statement in pairs(floruitStatements) do
			-- If all we've got so far is 'unknown', replace it.
			if table.concat(years, '/') == '?' then
				years = {}
			end
			addCategory('Autori cu date floruit')
			local year = getYearStringFromSingleStatement(statement, 'floruit')
			if year then
				table.insert(years, year)
			end
		end
	end
	years = TableTools.removeDuplicates(years)
	
	if #years == 0 then
		return nil
	end
	
	return table.concat(years, '/')
end

--------------------------------------------------------------------------------
-- Get a single formatted date, with no categories.
-- args.year, args.year_type, args.wd_entity
local function date(args)
	if args.year then
		return formatWikisourceYear(args.year, args.year_type)
	else
		return formatWikidataYear(args.wd_entity, args.year_type)
	end
end

--------------------------------------------------------------------------------
-- Get a formatted string of the years that this author lived,
-- and categorise in the appropriate categories.
-- The returned string starts with a line break (<br />).
local function dates(args)
	local outHtml = mw.html.create()
	
	--------------------------------------------------------------------------------
	-- Check a given title as having the appropriate dates as a disambiguating suffix.
	local function checkTitleDatesAgainstWikidata(title, wikidata)
		-- All disambiguated author pages have parentheses in their titles.
		local titleHasParentheses = string.find(tostring(title), '%d%)')
		if not titleHasParentheses then
			return
		end
		
		-- The title should end with years in the same format as is used in the page header
		-- but with a normal hyphen instead of an en-dash.
		local dates = '(' .. (date({year_type = 'birth', wd_entity = args.wd_entity}) or '') .. '-' .. (date({year_type = 'death', wd_entity = args.wd_entity}) or '') .. ')'
		if string.sub(tostring(title), -string.len(dates)) ~= dates then 
			addCategory('Autori cu nepotriviri între titlu și dată')
		end
	end
	
	-- Check disambiguated page titles for accuracy.
	checkTitleDatesAgainstWikidata(args.pagetitle or mw.title.getCurrentTitle(), args.wikidata)

	-- Get the dates (do death first, so birth can override categories if required):
	-- Death
	local deathyear
	local wikidataDeathyear = formatWikidataYear(args.wd_entity, 'death')
	local wikisourceDeathyear = args.deathyear or args.an_deces
	wikisourceDeathyear = formatWikisourceYear(wikisourceDeathyear, 'death')
	
	if wikisourceDeathyear then
		-- For Wikisource-supplied death dates.
		deathyear = wikisourceDeathyear
		addCategory('Autori cu data decesului suprascrisă')
		if args.wd_entity and wikisourceDeathyear ~= wikidataDeathyear then
			addCategory('Autori cu data decesului care diferă de Wikidata')
		end
		if tonumber(deathyear) then
			addCategory('Autori din ' .. dateModule.era(deathyear))
		end
	else
		deathyear = wikidataDeathyear
	end
	if not deathyear then
		addCategory('Autori cu data decesului lipsă')
	end
	
	-- Birth
	local birthyear
	local wikidataBirthyear = formatWikidataYear(args.wd_entity, 'birth')
	local wikisourceBirthyear = args.birthyear or args.an_nastere
	wikisourceBirthyear = formatWikisourceYear(wikisourceBirthyear, 'birth')
	if wikisourceBirthyear then
		-- For Wikisource-supplied birth dates.
		birthyear = wikisourceBirthyear
		addCategory('Autori cu data nașterii suprascrisă')
		if args.wd_entity and wikisourceBirthyear ~= wikidataBirthyear then
			addCategory('Autori cu data nașterii care diferă de Wikidata')
		end
		if tonumber(birthyear) then
			addCategory('Autori din ' .. dateModule.era(birthyear))
		end
	else
		birthyear = wikidataBirthyear
	end
	if not birthyear then
		addCategory('Autori cu data nașterii lipsă')
	end
	
	-- Work period
	local startYear = formatWikidataYear(args.wd_entity, "workperiodstart")
	local endYear = formatWikidataYear(args.wd_entity, "workperiodend")
	local workPeriodYears
	if startYear or endYear then
		if not startYear then
			startYear = '?'
		end
		if not endYear then
			endYear = '?'
		end
		workPeriodYears = "fl. " .. startYear .. "–" .. endYear
	else
		workPeriodYears = nil
	end
	
	-- Put all the output together, including manual override of the dates.
	local dates = ''
	local overrideDates = args.dates or args['date']
	if overrideDates then
		-- The parentheses are repeated here and in getFormattedDates()
		addCategory('Autori cu date suprascrise')
		dates = '<br />(' .. overrideDates .. ')'
	else
		dates = getFormattedDates(birthyear, deathyear, workPeriodYears)
	end
	
	if dates then
		outHtml:wikitext(dates)
		return tostring(outHtml)
	end
	
	return nil
end


--[=[
Match claims to configured categories.
Utility function for constructCategories.

Modifies the provided table to add categories configured in /data.
]=]
local function addCategoriesFromClaims(entity, pId, knownCategories)
	-- Abort if the provided category mappings are missing or undefined
	if not knownCategories then
		error('Denumirile categoriilor nu sunt definite. Verifică [[Modul:Author/data]].')
	end
	
	-- Get statements for the property provided (ignore deprecated statements)
	local statements = entity:getBestStatements(pId)
	
	-- Get the category for each statement's value if a mapping exists
	for _, v in pairs(statements) do
		-- Sometimes the property exists on the item but has no value,
		-- or it has an unknown value,
		-- so in the output from mw.wikibase.getEntity()
		-- .mainsnak's .datavalue will be nil.		
		if v.mainsnak.snaktype == 'value' then
			local valueId = v.mainsnak.datavalue.value.id
			-- Add the category if we have a mapping for this statement
			local knownCat = knownCategories[valueId]
			if knownCat then
				addCategory(knownCat)
			end
		end
	end
end

--[=[
Get categories for nationality, occupations, etc.

Returns categories as a string of wikicode
]=]
local function constructCategories(entity)
	if not entity then
		return nil
	end
	
	-- Load the property to category mappings
	local DATA = mw.loadData('Modul:Author/data')
	
	-- Add categories from properties for which we have a configured mapping
	addCategoriesFromClaims(entity, wd_properties['nationalities'],   DATA.categories.nationalities)
	addCategoriesFromClaims(entity, wd_properties['occupations'],  DATA.categories.occupations)
	addCategoriesFromClaims(entity, wd_properties['religions'],  DATA.categories.religions)
	addCategoriesFromClaims(entity, wd_properties['movements'],  DATA.categories.movements)
	addCategoriesFromClaims(entity, wd_properties['ideologies'], DATA.categories.ideologies)
	addCategoriesFromClaims(entity, wd_properties['employer'],  DATA.categories.employer)
	addCategoriesFromClaims(entity, wd_properties['positionheld'],   DATA.categories.positionheld)
	addCategoriesFromClaims(entity, wd_properties['awardreceived'],  DATA.categories.awardreceived)
	addCategoriesFromClaims(entity, wd_properties['memberof'],  DATA.categories.memberof)
	addCategoriesFromClaims(entity, wd_properties['canonizationstatus'],  DATA.categories.canonizationstatus)
	addCategoriesFromClaims(entity, wd_properties['contributedto'], DATA.categories.contributedto)
	addCategoriesFromClaims(entity, wd_properties['socialclassification'], DATA.categories.socialclassification)
	addCategoriesFromClaims(entity, wd_properties['instrument'], DATA.categories.instrument)
	addCategoriesFromClaims(entity, wd_properties['describedby'], DATA.categories.describedby)
end

--------------------------------------------------------------------------------
-- Output link and category for initial letters of family name.
--
-- PENTRU WIKISOURCE ÎN ROMÂNĂ:
-- Modulul a fost modificat pentru a se extrage doar prima literă din numele de 
-- familie, nu primele două cum se procedează la Wikisource în engleză.
local function lastInitial(args)
	-- Handle special override
	if not args.use_initials then
		return nil
	end
	
	-- Allow manual override of initials.
	local initials = args.last_initial or args['index_alfabetic']
	
	-- If a lastname is provided, get the initials from that.
	if not initials and args.lastname then
		initials = mw.ustring.sub(args.lastname, 1, 1)
	end
	
	-- Fetch from Wikidata.
	if not initials then
		local item = args.wd_entity
		if item then
			-- Get the first family name statement.
			local familyNames = item:getBestStatements(wd_properties['familyname'])
			if #familyNames > 0 then
				local familyNameId = familyNames[1].mainsnak.datavalue.value.id
				local familyName = mw.wikibase.getEntity(familyNameId)
				if familyName.labels and familyName.labels.ro then
					-- Take the first two characters of the Romanian label
					-- (this avoids issues with 'native label P1705' and is fine for Romanian Wikisource).
					initials = mw.ustring.sub(familyName.labels.ro.value, 1, 1) 
				end
			end
		end
	end
	
	-- Put it all together and output
	local out
	if initials then
		out = '[[:Categorie:Autori-' .. initials .. '|Index Autori: ' .. initials .. ']]'
		local authorCategory = mw.title.new('Autori-' .. initials, 'Categorie')
		addCategory(authorCategory.text)
		if authorCategory.exists ~= true then
			addCategory('Pagini de autor cu categorii de inițiale lipsă')
		end
	else
		addCategory('Autori fără inițiale')
		out = '[[:Categorie:Autori fără inițiale|Autori fără inițiale]]'
	end
	
	return out
end

--------------------------------------------------------------------------------
-- Header assembly
local function ucfirst(s)
	return string.sub(s, 1, 1) .. string.sub(s, 2)
end

local function gender_from_wd(wd_entity)
	if not wd_entity then
		return nil
	end
	local statements = wd_entity:getBestStatements(wd_properties['gender'])
	if #statements == 0 then
		return nil
	end
	
	local genders = {}
	for _, statement in pairs(statements) do
		local snak = statement.mainsnak
		if snak.snaktype ~= 'value'
			or not snak
			or snak.datatype ~= 'wikibase-item'
			or not snak.datavalue
			or not snak.datavalue.value
			or not snak.datavalue.value.id then
			break
		end
		local gender_item = mw.wikibase.getEntity(snak.datavalue.value.id)
		if not gender_item or not gender_item.labels or not gender_item.labels.ro or not gender_item.labels.ro.value then
			break
		end
		table.insert(genders, gender_item.labels.ro.value)
	end
	
	return genders[1]
end

local function image_from_wd(wd_entity)
	if not wd_entity then
		return {}
	end
	local statements = wd_entity:getBestStatements(wd_properties['image'])
	if #statements == 0 then
		return {}
	end
	
	local images = {}
	
	--[=[
	local langcode = mw.getCurrentFrame():callParserFunction('int', {'lang'})
	langcode = (mw.language.isKnownLanguageTag(langcode) and langcode) or mw.language.getContentLanguage().code
	local base_langcode = mw.text.split(langcode, '-', true)[1]
	local langcode_fallbacks_ordered = {base_langcode}
	for i, lang in ipairs(mw.language.getFallbacksFor(base_langcode)) do
		table.insert(langcode_fallbacks_ordered, lang)
	end
	if base_langcode ~= langcode then
		table.insert(langcode_fallbacks_ordered, 2, langcode)
		for i, lang in ipairs(mw.language.getFallbacksFor(langcode)) do
			table.insert(langcode_fallbacks_ordered, lang)
		end
	end
	
	local langcode_fallbacks = {}
	for i, v in ipairs(langcode_fallbacks_ordered) do
		langcode_fallbacks[v] = i
	end
	]=]
	
	local langcode_fallbacks = {[mw.language.getContentLanguage().code] = 1}
	
	for _, statement in pairs(statements) do
		local image = statement.mainsnak.datatype == 'commonsMedia' and statement.mainsnak.datavalue and statement.mainsnak.datavalue.value
		
		local captions = {}
		
		local legends = statement['qualifiers'] and statement['qualifiers'][wd_properties['medialegend']]
		
		if legends then
			for i, legend in ipairs(legends) do
				if legend.datatype == 'monolingualtext' and legend.datavalue and legend.datavalue.value and legend.datavalue.value.text and legend.datavalue.value.language then
					local legend_langcode = legend.datavalue.value.language
					local legend_base_langcode = mw.text.split(legend_langcode, '-', true)[1]
					local legend_text = legend.datavalue.value.text
					
					if langcode_fallbacks[legend_langcode] then
						captions[langcode_fallbacks[legend_langcode]] = legend_text
					elseif langcode_fallbacks[legend_base_langcode] then
						captions[langcode_fallbacks[legend_base_langcode]] = captions[langcode_fallbacks[legend_base_langcode]] or legend_text
					end
				end
			end
			captions = TableTools.compressSparseArray(captions)
		end
		
		if image then
			table.insert(images, {image = image, image_caption = captions[1]})
		end
	end
	
	return images[1] or {}
end

function p.image_from_wd(wd_entity)
	return image_from_wd(wd_entity)
end

local function get_image(args)
	local image = args.image or args.imagine
	local wd_image_info = image_from_wd(args.wd_entity)
	local template_ns = args.template_ns or 'Autor'
	
	if image then
		addCategory('Pagini de ' .. string.lower(template_ns) .. ' cu imagine')
	else
		image = wd_image_info.image
		if image then
			addCategory('Pagini de ' .. string.lower(template_ns) .. ' cu imagine de la Wikidata')
		else
			addCategory('Pagini de ' .. string.lower(template_ns) .. ' fără imagine')
		end
	end
	
	local image_display = ''
	if image then
		local upright = (yesno(args.upright) and '|upright=0.4') or ''
		
		args.image_caption = args.image_caption or args.descriere_imagine or wd_image_info.image_caption or args.name_text
		
		local caption_div = (args.image_caption and tostring(mw.html.create('div'):css({['text-align'] = 'center'}):wikitext(args.image_caption))) or ''
		
		image_display = '[[Fișier:' .. image .. '|thumb' .. upright .. '|' .. caption_div .. ']]'
	end
	
	return image_display
end

local function construct_defaultsort(args)
	local defaultsort = args.defaultsort
	if not defaultsort then
		if args.prenume and args.nume then
			defaultsort = ucfirst(args.nume .. ', ' .. args.prenume)
		elseif args.firstname and args.lastname then
			defaultsort = ucfirst(args.lastname .. ', ' .. args.firstname)
		elseif args.prenume or args.nume then
			defaultsort = ucfirst((args.nume or '') .. (args.prenume or ''))
		elseif args.firstname or args.lastname then
			defaultsort = ucfirst((args.lastname or '') .. (args.firstname or ''))
		end
	end
	if defaultsort then
		return mw.getCurrentFrame():callParserFunction('DEFAULTSORT', {defaultsort})
	end
	return ''
end

local function author(args)
	args = normalize_args(args)
	
	-- Always tell Header structure that we're {{author}}
	-- TODO: Is there a use case for letting our clients set this?
	args.template = 'author'

	local current_title = mw.title.getCurrentTitle()
	
	local firstname = args.prenume or 
		args.firstname or 
		args.wd_entity:formatPropertyValues(wd_properties['firstname']).value:gsub(',', '')
	local lastname = args.nume or 
		args.lastname or
		args.wd_entity:formatPropertyValues(wd_properties['familyname']).value:gsub(',', '')
		
	if lastname == '' then
		lastname = args.wd_entity:getLabel('ro')
	end
		
	local last_initial = args.last_initial or 
		args['index-alfabetic'] or
		lastname:sub(1,1)
	
	if firstname and firstname ~= '' then
		firstname = preprocess(firstname)
	end
	if lastname then
		lastname = preprocess(lastname)
	end
	if last_initial then
		last_initial = preprocess(last_initial)
	end
	
	args.header_class = 'wst-author ws-header'
	
	-- main block
	
	args.main_class = 'authortemplate'
	
	args.anterior = lastInitial(args)
	
	if firstname and lastname then
		if yesno(args.invert_names) then
			args.name_text = lastname .. ' ' .. firstname
		else
			args.name_text = firstname .. ' ' .. lastname
		end
	else
		args.name_text = firstname or lastname
	end
	
	local name_text_span = ''
	if args.name_text then
		name_text_span = tostring(mw.html.create('span'):css({['font-weight'] = 'bold'}):wikitext(args.name_text))
	end
	
	local dates_text = ''
	if not yesno(args.disambiguation) then
		dates_text = dates(args) or ''
	end
	
	args.main_title = name_text_span .. dates_text
	
	-- notes block
	args.notes_class = 'author_notes'
	args.commonscat = args.commonscat or (
		args.wd_entity
		and args.wd_entity.claims
		and args.wd_entity.claims.P373
		and args.wd_entity.claims.P373[1]
		and args.wd_entity.claims.P373[1].mainsnak
		and args.wd_entity.claims.P373[1].mainsnak.datatype == 'string'
		and args.wd_entity.claims.P373[1].mainsnak.datavalue
		and args.wd_entity.claims.P373[1].mainsnak.datavalue.value
	)
	args.note = args.description or 
		args.descriere or
		args.wd_entity:getDescription('ro'):gsub("^%l", string.upper)
	
	-- image
	local image_display = get_image(args)
	
	-- defaultsort
	args.defaultsort = args.defaultsort or args.sortkey
	local defaultsort_magicword = construct_defaultsort(args)
	
	-- categories
	if not args.categories then
		-- Author index category
		if last_initial then
			addCategory('Autori-' .. last_initial)
		elseif not last_initial then
			addCategory('Autori fără inițiale')
		end
		
		-- Categorisation of author pages by gender, based on Wikidata sex or gender Property (P21)
		-- The main are: male (Q6581097), female (Q6581072), transgender female (Q1052281), transgender male (Q2449503)
		if args.wd_entity then
			local gender = gender_from_wd(args.wd_entity)
			if gender == 'transgender female' or gender == 'female' then
				addCategory('Autori femei')
				addCategory('Pagini de autor cu gen la Wikidata')
			elseif gender == 'transgender male' or gender == 'male' then
				addCategory('Autori bărbați')
				addCategory('Pagini de autor cu gen la Wikidata')
			elseif gender then
				addCategory('Pagini de autor cu gen necunoscut la Wikidata')
			else
				addCategory('Pagini de autor fără gen la Wikidata')
			end
			if gender == 'transgender female' or gender == 'transgender male' then
				addCategory('Autori transgen și transsexuali')
			end
		else
			addCategory('Pagini de autor cu gen categorisit manual')
		end
		
		constructCategories(args.wd_entity)
		
		-- Categorisation of author pages with interwiki links (used for maintenance view only, links come from WD)
		if args.wikipedia then
			addCategory('Pagini de autor cu legături la Wikipedia')
		end
		if args.wikiquote then
			addCategory('Pagini de autor cu legături la Wikicitat')
		end
		if args.commons then
			addCategory('Pagini de autor cu legături la Wikimedia Commons')
		end
		if args.commonscat then
			addCategory('Pagini de autor cu legături la categorii Wikimedia Commons')
		end
		
		-- Whether page is connected to Wikidata
		if (args.namespace or current_title.nsText) == 'Autor' then
			if args.wd_entity then
				addCategory('Pagini de autor conectate la Wikidata')
			else
				addCategory('Pagini de autor neconectate la Wikidata')
			end
		end
	end
	
	-- microformat
	local microformat = mw.html.create('div')
		:attr('id', 'ws-data')
		:addClass('vcard ws-noexport')
		:css({['display'] = 'none', ['speak'] = 'none'})
	local microformat_wikitext = {
		tostring(mw.html.create('span'):attr('id', 'ws-article-id'):wikitext(current_title.id))
	}
	if args.wd_entity then
		table.insert(
			microformat_wikitext,
			tostring(mw.html.create('span')
				:attr('id', 'wd-article-id')
				:wikitext(args.wd_entity.id)
			)
		)
	end
	if args.name_text then
		table.insert(
			microformat_wikitext,
			tostring(mw.html.create('span')
				:attr('id', 'ws-name')
				:addClass('fn')
				:wikitext(args.name_text)
			)
		)
		table.insert(
			microformat_wikitext,
			tostring(mw.html.create('span')
				:addClass('n')
				:wikitext(table.concat({
					tostring(mw.html.create('span'):addClass('given-name'):wikitext(firstname or '')),
					tostring(mw.html.create('span'):addClass('family-name'):wikitext(lastname or ''))
				}))
			)
		)
	end
	if args.defaultsort then
		table.insert(microformat_wikitext, tostring(mw.html.create('span'):attr('id', 'ws-key'):wikitext(args.defaultsort)))
	end
	if args.image then
		table.insert(microformat_wikitext, tostring(mw.html.create('span'):attr('id', 'ws-image'):wikitext(args.image)))
	end
	if args.birthyear then
		table.insert(
			microformat_wikitext,
			tostring(mw.html.create('span')
				:attr('id', 'ws-birthdate')
				:addClass('bday')
				:wikitext(date({['year_type'] = 'birth', ['year'] = args.birthyear}))
			)
		)
	end
	if args.deathyear then
		table.insert(
			microformat_wikitext,
			tostring(mw.html.create('span')
				:attr('id', 'ws-deathdate')
				:addClass('dday')
				:wikitext(date({['year_type'] = 'death', ['year'] = args.deathyear}))
			)
		)
	end
	if args.wikipedia then
		table.insert(microformat_wikitext, tostring(mw.html.create('span'):attr('id', 'ws-wikipedia'):wikitext(args.wikipedia)))
	end
	if args.wikiquote then
		table.insert(microformat_wikitext, tostring(mw.html.create('span'):attr('id', 'ws-wikiquote'):wikitext(args.wikiquote)))
	end
	if args.commonscat then
		table.insert(microformat_wikitext, tostring(mw.html.create('span'):attr('id', 'ws-commons'):wikitext(args.commonscat)))
	elseif args.commons then
		table.insert(microformat_wikitext, tostring(mw.html.create('span'):attr('id', 'ws-commons'):wikitext('Category' .. args.commons)))
	end
	if args.description then
		table.insert(microformat_wikitext, tostring(mw.html.create('span'):attr('id', 'ws-description'):addClass('note'):wikitext(args.description)))
	end
	if args.descriere then
		table.insert(microformat_wikitext, tostring(mw.html.create('span'):attr('id', 'ws-descriere'):addClass('note'):wikitext(args.descriere)))
	end
	microformat:wikitext(table.concat(microformat_wikitext))
	
	-- assemble
	local cats = ''
	if not args.nocat then
		cats = (args.categories or '') .. getCategories()
	end
	args.post_notes = image_display .. defaultsort_magicword .. cats .. tostring(microformat)
	args.wikidataswitch = true
	
	return mw.getCurrentFrame():extensionTag('templatestyles', '', {src = 'Format:Autor/styles.css'}) .. construct_header(args)
end

-- for testing

function p._getCategories(args)
	args = normalize_args(args)
	p._author(args)
	return getCategories()
end
function p.getCategories(frame)
	return p._getCategories(getArgs(frame))
end

function p._date(args)
	args = normalize_args(args)
	args.year_type = args.year_type or args['type'] or 'birth'
	return date(args)
end
function p.date(frame)
	return p._date(getArgs(frame))
end

function p._lastInitial(args)
	args = normalize_args(args)
	return lastInitial(args)
end
function p.lastInitial(frame)
	return p._lastInitial(getArgs(frame))
end

-- Debugging 1: mw.log(p._lastInitial({last_initial = 'Qx'}))
-- Debugging 2: mw.log(p._lastInitial({wikidata = 'Q1107985'}))
-- Debugging 1: mw.log(p._lastInitial({lastname = 'Qqxxx'}))
-- Debugging 3: mw.log(p._lastInitial({last_initial = 'Qx', wikidata_id='Q1107985'}))

-- used by [[Module:Person]]

function p._dates(args)
	args = normalize_args(args)
	return dates(args)
end
function p.dates(frame)
	return p._dates(getArgs(frame))
end

function p._get_image(args)
	args = normalize_args(args)
	if args.nocat then
		return get_image(args)
	else
		return get_image(args) .. getCategories()
	end
end
function p.get_image(frame)
	return p._get_image(getArgs(frame))
end

function p._construct_defaultsort(args)
	args = normalize_args(args)
	return construct_defaultsort(args)
end
function p.construct_defaultsort(frame)
	return p._construct_defaultsort(getArgs(frame))
end

-- Used by [[Module:Disambiguation]] and [[Template:Author]]
function p._author(args)
	return author(args)
end
function p.author(frame)
	return p._author(getArgs(frame))
end

return p
Adus de la „https://ro.wikisource.org/w/index.php?title=Modul:Author&oldid=142885”