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--[==[ This module is a Lua implementation of the old {{Portal}} template. As of February 2019 it is used on nearly 7,900,000 articles.
---- Please take care when updating it! It outputs two functions: p.portal, which generates a list of portals, and p.image, which
---- produces the image name for an individual portal.
--
---- The portal image data is kept in submodules of [[Module:Portal/images]], listed below:
---- [[Module:Portal/images/a]]		- for portal names beginning with "A".
---- [[Module:Portal/images/b]]		- for portal names beginning with "B".
---- [[Module:Portal/images/c]]		- for portal names beginning with "C".
---- [[Module:Portal/images/d]]		- for portal names beginning with "D".
---- [[Module:Portal/images/e]]		- for portal names beginning with "E".
---- [[Module:Portal/images/f]]		- for portal names beginning with "F".
---- [[Module:Portal/images/g]]		- for portal names beginning with "G".
---- [[Module:Portal/images/h]]		- for portal names beginning with "H".
---- [[Module:Portal/images/i]]		- for portal names beginning with "I".
---- [[Module:Portal/images/j]]		- for portal names beginning with "J".
---- [[Module:Portal/images/k]]		- for portal names beginning with "K".
---- [[Module:Portal/images/l]]		- for portal names beginning with "L".
---- [[Module:Portal/images/m]]		- for portal names beginning with "M".
---- [[Module:Portal/images/n]]		- for portal names beginning with "N".
---- [[Module:Portal/images/o]]		- for portal names beginning with "O".
---- [[Module:Portal/images/p]]		- for portal names beginning with "P".
---- [[Module:Portal/images/q]]		- for portal names beginning with "Q".
---- [[Module:Portal/images/r]]		- for portal names beginning with "R".
---- [[Module:Portal/images/s]]		- for portal names beginning with "S".
---- [[Module:Portal/images/t]]		- for portal names beginning with "T".
---- [[Module:Portal/images/u]]		- for portal names beginning with "U".
---- [[Module:Portal/images/v]]		- for portal names beginning with "V".
---- [[Module:Portal/images/w]]		- for portal names beginning with "W".
---- [[Module:Portal/images/x]]		- for portal names beginning with "X".
---- [[Module:Portal/images/y]]		- for portal names beginning with "Y".
---- [[Module:Portal/images/z]]		- for portal names beginning with "Z".
---- [[Module:Portal/images/other]]	- for portal names beginning with any other letters. This includes numbers,
---- 									  letters with diacritics, and letters in non-Latin alphabets.
---- [[Module:Portal/images/aliases]]	- for adding aliases for existing portal names. Use this page for variations
---- 									  in spelling and diacritics, etc., no matter what letter the portal begins with.
----
---- The images data pages are separated by the first letter to reduce server load when images are added, changed, or removed.
---- Previously all the images were on one data page at [[Module:Portal/images]], but this had the disadvantage that all
---- 5,000,000 pages using this module needed to be refreshed every time an image was added or removed.
--]==]
--
--local p = {}
--
---- determine whether we're being called from a sandbox
--local isSandbox = mw.getCurrentFrame():getTitle():find('sandbox', 1, true)
--local sandbox = isSandbox and '/sandbox' or ''
--
--local function sandboxVersion(s)
--	return isSandbox and s..'-sand' or s
--end
--
--local templatestyles = 'Module:Portal'..sandbox..'/styles.css'
--
--local getArgs = require('Module:Arguments').getArgs
--local yesno = require('Module:Yesno')
--
---- List of non-talk namespaces which should not be tracked (Talk pages are never tracked)
--local badNamespaces = {'user','template','draft','wikipedia'}
--
---- Check whether to do tracking in this namespace
---- Returns true unless the page is one of the banned namespaces
--local function checkTracking(title)
--	local thisPage = title or mw.title.getCurrentTitle()
--	if thisPage.isTalkPage then
--		return false
--	end
--	local ns = thisPage.nsText:lower()
--	for _, v in ipairs(badNamespaces) do
--		if ns == v then
--			return false
--		end
--	end
--	return true
--end
--
--local function matchImagePage(s)
--	-- Finds the appropriate image subpage given a lower-case
--	-- portal name plus the first letter of that portal name.
--	if type(s) ~= 'string' or #s < 1 then return end
--	local firstLetter = mw.ustring.sub(s, 1, 1)
--	local imagePage
--	if mw.ustring.find(firstLetter, '^[a-z]') then
--		imagePage = 'Module:Portal/images/' .. firstLetter .. sandbox
--	else
--		imagePage = 'Module:Portal/images/other' .. sandbox
--	end
--	return mw.loadData(imagePage)[s]
--end
--
--local function getAlias(s)
--	-- Gets an alias from the image alias data page.
--	local aliasData = mw.loadData('Module:Portal/images/aliases'..sandbox)
--	for portal, aliases in pairs(aliasData) do
--		for _, alias in ipairs(aliases) do
--			if alias == s then
--				return portal
--			end
--		end
--	end
--end
--
--local function getImageName(s)
--	-- Gets the image name for a given string.
--	local default = 'Portal-puzzle.svg|link=|alt='
--	if type(s) ~= 'string' or #s < 1 then
--		return default
--	end
--	s = mw.ustring.lower(s)
--	return matchImagePage(s) or matchImagePage(getAlias(s)) or default
--end
--
-- -- Function to check argument portals for errors, generate tracking categories if needed
-- --     Function first checks for too few/many portals provided
-- --     Then checks the portal list to purge any portals that don't exist
-- -- Arguments:
-- --   portals: raw list of portals
-- --   args.tracking: is tracking requested? (will not track on bad titles or namespaces)
-- --   args.redlinks: should redlinks be displayed?
-- --   args.minPortals: minimum number of portal arguments
-- --   args.maxPortals: maximum number of portal arguments
-- -- Returns:
-- --   portals = list of portals, with redlinks purged (if args.redlinks=false)
-- --   trackingCat = possible tracking category
-- --   errorMsg = error message
--function p._checkPortals(portals, args)
--	local trackingCat = ''
--	local errMsg = nil
--	
--	-- Tracking is on by default.
--	-- It is disabled if any of the following is true
--	-- 1/ the parameter "tracking" is set to 'no, 'n', or 'false'
--	-- 2/ the current page fails the namespace or pagename tests 
--	local trackingEnabled = args.tracking and checkTracking()
--	
--	args.minPortals = args.minPortals or 1
--	args.maxPortals = args.maxPortals or -1
--	-- check for too few portals
--	if #portals < args.minPortals then
--		errMsg = 'please specify at least '..args.minPortals..' portal'..(args.minPortals > 1 and 's' or '')
--		trackingCat = (trackingEnabled and '[[Category:Portal templates with too few portals]]' or '')
--		return portals, trackingCat, errMsg
--	end
--	-- check for too many portals
--	if args.maxPortals >= 0 and #portals > args.maxPortals then
--		errMsg = 'too many portals (maximum = '..args.maxPortals..')'
--		trackingCat = (trackingEnabled and '[[Category:Portal templates with too many portals]]' or '')
--		return portals, trackingCat, errMsg
--	end
--	if not args.redlinks or trackingEnabled then
--		-- make new list of portals that exist
--		local existingPortals = {}
--		for _, portal in ipairs(portals) do
--			local portalTitle = mw.title.new(portal,"Портал")
--			-- if portal exists, put it into list
--			if portalTitle and portalTitle.exists then
--				table.insert(existingPortals,portal)
--			-- otherwise set tracking cat
--			elseif trackingEnabled then
--				trackingCat = "[[Category:Portal templates with redlinked portals]]"
--			end
--		end
--		-- If redlinks is off, use portal list purged of redlinks
--		portals = args.redlinks and portals or existingPortals
--		-- if nothing left after purge, set tracking cat
--		if #portals == 0 and trackingEnabled then
--			trackingCat = trackingCat.."[[Category:Pages with empty portal template]]" 
--		end
--	end
--	return portals, trackingCat, errMsg
--end
--
--function p._portal(portals, args)
--	-- This function builds the portal box used by the {{portal}} template.
--	
--	-- Normalize all arguments
--	if args.redlinks == 'include' then args.redlinks = true end
--	args.addBreak = args['break']
--	for key, default in pairs({left=false,tracking=true,nominimum=false,
--		                       redlinks=false,addBreak=false,border=true}) do
--		if args[key] == nil then args[key] = default end
--		args[key] = yesno(args[key], default)
--	end
--
--	local root = mw.html.create('div')
--		:attr('role', 'navigation')
--		:attr('aria-label', 'Portali')
--		:addClass('noprint plainlist')
--		:addClass(sandboxVersion('portalbox'))
--		:addClass(args.border and sandboxVersion('portalborder') or '')
--		:addClass(args.left and 'tleft' or 'tright')
--		:css('margin', args.margin or nil)
--		:newline()
--
--	local trackingCat = ''
--	local errMsg = nil
--	args.minPortals = args.nominimum and 0 or 1
--	args.maxPortals = -1
--	portals, trackingCat, errMsg = p._checkPortals(portals, args)
--	root:wikitext(trackingCat)
--	-- if error message, put it in the box and return
--	if errMsg then
--		if args.border then -- suppress error message when border=no
--			local errTag = root:tag('strong')
--			errTag:addClass('error')
--			errTag:css('padding','0.2em')
--			errTag:wikitext('Error: '..errMsg)
--		end
--		return tostring(root)
--	end
--	-- if no portals (and no error), just return tracking category
--	if #portals == 0 then
--		return trackingCat
--	end
--
--	-- Start the list. This corresponds to the start of the wikitext table in the old [[Template:Portal]].
--	local listroot = root:tag('ul')
--		:css('width', (tonumber(args.boxsize) or 0) > 0 and (args.boxsize .. 'px') or args.boxsize)
--
--	-- Display the portals specified in the positional arguments.
--	for _, portal in ipairs(portals) do
--		local image = getImageName(portal)
--
--		-- Generate the html for the image and the portal name.
--		listroot
--			:newline()
--			:tag('li')
--				:tag('span')
--					:wikitext(string.format('[[File:%s|32x28px|class=noviewer]]', image))
--					:done()
--				:tag('span')
--					:wikitext(string.format('[[Портал:%s|Portal %s%s]]', portal, portal, args.addBreak and '<br />' or ' '))
--	end
--	return tostring(root)
--end
--
--function p._image(portal,nostrip)
--	-- Wrapper function to allow getImageName() to be accessed through #invoke.
--	-- backward compatibility: if table passed, take first element
--	if type(portal) == 'table' then
--		portal = portal[1]
--	end
--	local name = getImageName(portal)
--	-- If nostrip is yes (or equivalent), then allow all metadata (like image borders) to be returned
--	local strip = not yesno(nostrip)
--	return strip and name:match('^(.-)|') or name -- FIXME: use a more elegant way to separate borders etc. from the image name
--end
--
--local function getAllImageTables()
--	-- Returns an array containing all image subpages (minus aliases) as loaded by mw.loadData.
--	local images = {}
--	for i, subpage in ipairs{'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 'other'} do
--		images[i] = mw.loadData('Module:Portal/images/' .. subpage .. sandbox)
--	end
--	return images
--end
--
--function p._displayAll(portals, args)
--	-- This function displays all portals that have portal images. This function is for maintenance purposes and should not be used in
--	-- articles, for two reasons: 1) there are over 1500 portals with portal images, and 2) the module doesn't record how the portal
--	-- names are capitalized, so the portal links may be broken.
--	local lang = mw.language.getContentLanguage()
--	local count = 1
--	for _, imageTable in ipairs(getAllImageTables()) do
--		for portal in pairs(imageTable) do
--			portals[count] = lang:ucfirst(portal)
--			count = count + 1
--		end
--	end
--	return p._portal(portals, args)
--end
--
--function p._imageDupes()
--	-- This function searches the image subpages to find duplicate images. If duplicate images exist, it is not necessarily a bad thing,
--	-- as different portals might just happen to choose the same image. However, this function is helpful in identifying images that
--	-- should be moved to a portal alias for ease of maintenance.
--	local exists, dupes = {}, {}
--	for _, imageTable in ipairs(getAllImageTables()) do
--		for portal, image in pairs(imageTable) do
--			if not exists[image] then
--				exists[image] = portal
--			else
--				table.insert(dupes, string.format('The image "[[:File:%s|%s]]" is used for both portals "%s" and "%s".', image, image, exists[image], portal))
--			end
--		end
--	end
--	if #dupes < 1 then
--		return 'No duplicate images found.'
--	else
--		return 'The following duplicate images were found:\n* ' .. table.concat(dupes, '\n* ')
--	end
--end
--
--local function processPortalArgs(args)
--	-- This function processes a table of arguments and returns two tables: an array of portal names for processing by ipairs, and a table of
--	-- the named arguments that specify style options, etc. We need to use ipairs because we want to list all the portals in the order
--	-- they were passed to the template, but we also want to be able to deal with positional arguments passed explicitly, for example
--	-- {{portal|2=Politics}}. The behaviour of ipairs is undefined if nil values are present, so we need to make sure they are all removed.
--	args = type(args) == 'table' and args or {}
--	local portals = {}
--	local namedArgs = {}
--	for k, v in pairs(args) do
--		if type(k) == 'number' and type(v) == 'string' then -- Make sure we have no non-string portal names.
--			table.insert(portals, k)
--		elseif type(k) ~= 'number' then
--			namedArgs[k] = v
--		end
--	end
--	table.sort(portals)
--	for i, v in ipairs(portals) do
--		portals[i] = args[v]
--	end
--	return portals, namedArgs
--end
--
---- Entry point for sorting portals from other named arguments
--function p._processPortalArgs(args)
--	return processPortalArgs(args)
--end
--
--function p.image(frame)
--	local origArgs = getArgs(frame)
--	local portals, args = processPortalArgs(origArgs)
--	return p._image(portals[1],args.border)
--end
--
--local function makeWrapper(funcName)
--	-- Processes external arguments and sends them to the other functions.
--	return function (frame)
--		-- If called via #invoke, use the args passed into the invoking
--		-- template, or the args passed to #invoke if any exist. Otherwise
--		-- assume args are being passed directly in from the debug console
--		-- or from another Lua module. 
--		-- Also: trim whitespace and remove blank arguments
--		local origArgs = getArgs(frame)
--		-- create two tables to pass to func: an array of portal names, and a table of named arguments.
--		local portals, args = processPortalArgs(origArgs)
--		local results = ''
--		if funcName == '_portal' or funcName == '_displayAll' then
--			results = frame:extensionTag{ name = 'templatestyles', args = { src = templatestyles} }
--		end
--		return results .. p[funcName](portals, args) 
--	end
--end
--
--for _, funcName in ipairs{'portal', 'imageDupes', 'displayAll'} do
--	p[funcName] = makeWrapper('_' .. funcName)
--end
--
--return p
--[==[ This module is a Lua implementation of the old {{Portal}} template. As of August 2013 it is used on nearly 5,000,000 articles.
-- Please take care when updating it! It outputs two functions: p.portal, which generates a list of portals, and p.image, which
-- produces the image name for an individual portal.

-- The portal image data is kept in submodules of [[Module:Portal/images]], listed below:
-- [[Module:Portal/images/a]]		- for portal names beginning with "A".
-- [[Module:Portal/images/b]]		- for portal names beginning with "B".
-- [[Module:Portal/images/c]]		- for portal names beginning with "C".
-- [[Module:Portal/images/d]]		- for portal names beginning with "D".
-- [[Module:Portal/images/e]]		- for portal names beginning with "E".
-- [[Module:Portal/images/f]]		- for portal names beginning with "F".
-- [[Module:Portal/images/g]]		- for portal names beginning with "G".
-- [[Module:Portal/images/h]]		- for portal names beginning with "H".
-- [[Module:Portal/images/i]]		- for portal names beginning with "I".
-- [[Module:Portal/images/j]]		- for portal names beginning with "J".
-- [[Module:Portal/images/k]]		- for portal names beginning with "K".
-- [[Module:Portal/images/l]]		- for portal names beginning with "L".
-- [[Module:Portal/images/m]]		- for portal names beginning with "M".
-- [[Module:Portal/images/n]]		- for portal names beginning with "N".
-- [[Module:Portal/images/o]]		- for portal names beginning with "O".
-- [[Module:Portal/images/p]]		- for portal names beginning with "P".
-- [[Module:Portal/images/q]]		- for portal names beginning with "Q".
-- [[Module:Portal/images/r]]		- for portal names beginning with "R".
-- [[Module:Portal/images/s]]		- for portal names beginning with "S".
-- [[Module:Portal/images/t]]		- for portal names beginning with "T".
-- [[Module:Portal/images/u]]		- for portal names beginning with "U".
-- [[Module:Portal/images/v]]		- for portal names beginning with "V".
-- [[Module:Portal/images/w]]		- for portal names beginning with "W".
-- [[Module:Portal/images/x]]		- for portal names beginning with "X".
-- [[Module:Portal/images/y]]		- for portal names beginning with "Y".
-- [[Module:Portal/images/z]]		- for portal names beginning with "Z".
-- [[Module:Portal/images/other]]	- for portal names beginning with any other letters. This includes numbers,
-- 									  letters with diacritics, and letters in non-Latin alphabets.
-- [[Module:Portal/images/aliases]]	- for adding aliases for existing portal names. Use this page for variations
-- 									  in spelling and diacritics, etc., no matter what letter the portal begins with.
--
-- The images data pages are separated by the first letter to reduce server load when images are added, changed, or removed.
-- Previously all the images were on one data page at [[Module:Portal/images]], but this had the disadvantage that all
-- 5,000,000 pages using this module needed to be refreshed every time an image was added or removed.
]==]

local p = {}

local function matchImagePage(s)
	-- Finds the appropriate image subpage given a lower-case
	-- portal name plus the first letter of that portal name.
	if type(s) ~= 'string' or #s < 1 then return end
	local firstLetter = mw.ustring.sub(s, 1, 1)
	local imagePage
	if mw.ustring.find(firstLetter, '^[a-z]') then
		imagePage = 'Module:Portal/images/' .. firstLetter
	else
		imagePage = 'Module:Portal/images/other'
	end
	return mw.loadData(imagePage)[s]
end

local function getAlias(s)
	-- Gets an alias from the image alias data page.
	local aliasData = mw.loadData('Module:Portal/images/aliases')
	for portal, aliases in pairs(aliasData) do
		for _, alias in ipairs(aliases) do
			if alias == s then
				return portal
			end
		end
	end
end

local function getImageName(s)
	-- Gets the image name for a given string.
	local default = 'Portal-puzzle.svg|link=|alt='
	if type(s) ~= 'string' or #s < 1 then
		return default
	end
	s = mw.ustring.lower(s)
	return matchImagePage(s) or matchImagePage(getAlias(s)) or default
end

function p._portal(portals, args)
	-- This function builds the portal box used by the {{portal}} template.
	local root = mw.html.create('div')
		:attr('role', 'navigation')
		:attr('aria-label', 'Portals')
		:addClass('noprint portal plainlist')
		:addClass(args.left and 'tleft' or 'tright')
		:css('margin', args.margin or (args.left == 'yes' and '0.5em 1em 0.5em 0') or '0.5em 0 0.5em 1em')
		:css('border', 'solid #aaa 1px')
		:newline()

	-- If no portals have been specified, display an error and add the page to a tracking category.
	if not portals[1] then
		root:wikitext('<strong class="error">No portals specified: please specify at least one portal</strong>[[Category:Portal templates without a parameter]]')
		return tostring(root)
	end

	-- Start the list. This corresponds to the start of the wikitext table in the old [[Template:Portal]].
	local listroot = root:tag('ul')
		:css('display', 'table')
		:css('box-sizing', 'border-box')
		:css('padding', '0.1em')
		:css('max-width', '175px')
		:css('width', type(args.boxsize) == 'string' and (args.boxsize .. 'px') or nil)
		:css('background', '#f9f9f9')
		:css('font-size', '85%')
		:css('line-height', '110%')
		:css('font-style', 'italic')
		:css('font-weight', 'bold')

	-- Display the portals specified in the positional arguments.
	for _, portal in ipairs(portals) do
		local image = getImageName(portal)

		-- Generate the html for the image and the portal name.
		listroot
			:newline()
			:tag('li')
				:css('display', 'table-row')
				:tag('span')
					:css('display', 'table-cell')
					:css('padding', '0.2em')
					:css('vertical-align', 'middle')
					:css('text-align', 'center')
					:wikitext(string.format('[[File:%s|32x28px|class=noviewer]]', image))
					:done()
				:tag('span')
					:css('display', 'table-cell')
					:css('padding', '0.2em 0.2em 0.2em 0.3em')
					:css('vertical-align', 'middle')
					:wikitext(string.format('[[Портал:%s|Portal %s%s]]', portal, mw.language.getContentLanguage():ucfirst(portal), args['break'] and '<br />' or ' '))
	end
	return tostring(root)
end

function p._image(portals)
	-- Wrapper function to allow getImageName() to be accessed through #invoke.
	local name = getImageName(portals[1])
	return name:match('^(.-)|') or name -- FIXME: use a more elegant way to separate borders etc. from the image name
end

local function getAllImageTables()
	-- Returns an array containing all image subpages (minus aliases) as loaded by mw.loadData.
	local images = {}
	for i, subpage in ipairs{'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 'other'} do
		images[i] = mw.loadData('Module:Portal/images/' .. subpage)
	end
	return images
end

function p._displayAll(portals, args)
	-- This function displays all portals that have portal images. This function is for maintenance purposes and should not be used in
	-- articles, for two reasons: 1) there are over 1500 portals with portal images, and 2) the module doesn't record how the portal
	-- names are capitalized, so the portal links may be broken.
	local lang = mw.language.getContentLanguage()
	local count = 1
	for _, imageTable in ipairs(getAllImageTables()) do
		for portal in pairs(imageTable) do
			portals[count] = lang:ucfirst(portal)
			count = count + 1
		end
	end
	return p._portal(portals, args)
end

function p._imageDupes()
	-- This function searches the image subpages to find duplicate images. If duplicate images exist, it is not necessarily a bad thing,
	-- as different portals might just happen to choose the same image. However, this function is helpful in identifying images that
	-- should be moved to a portal alias for ease of maintenance.
	local exists, dupes = {}, {}
	for _, imageTable in ipairs(getAllImageTables()) do
		for portal, image in pairs(imageTable) do
			if not exists[image] then
				exists[image] = portal
			else
				table.insert(dupes, string.format('The image "[[:File:%s|%s]]" is used for both portals "%s" and "%s".', image, image, exists[image], portal))
			end
		end
	end
	if #dupes < 1 then
		return 'No duplicate images found.'
	else
		return 'The following duplicate images were found:\n* ' .. table.concat(dupes, '\n* ')
	end
end

local function processPortalArgs(args)
	-- This function processes a table of arguments and returns two tables: an array of portal names for processing by ipairs, and a table of
	-- the named arguments that specify style options, etc. We need to use ipairs because we want to list all the portals in the order
	-- they were passed to the template, but we also want to be able to deal with positional arguments passed explicitly, for example
	-- {{portal|2=Politics}}. The behaviour of ipairs is undefined if nil values are present, so we need to make sure they are all removed.
	args = type(args) == 'table' and args or {}
	local portals = {}
	local namedArgs = {}
	for k, v in pairs(args) do
		if type(k) == 'number' and type(v) == 'string' then -- Make sure we have no non-string portal names.
			table.insert(portals, k)
		elseif type(k) ~= 'number' then
			namedArgs[k] = v
		end
	end
	table.sort(portals)
	for i, v in ipairs(portals) do
		portals[i] = args[v]
	end
	return portals, namedArgs
end

local function makeWrapper(funcName)
	-- Processes external arguments and sends them to the other functions.
	return function (frame)
		-- If called via #invoke, use the args passed into the invoking
		-- template, or the args passed to #invoke if any exist. Otherwise
		-- assume args are being passed directly in from the debug console
		-- or from another Lua module.
		local origArgs
		if type(frame.getParent) == 'function' then
			origArgs = frame:getParent().args
			for k, v in pairs(frame.args) do
				origArgs = frame.args
				break
			end
		else
			origArgs = frame
		end
		-- Trim whitespace and remove blank arguments.
		local args = {}
		for k, v in pairs(origArgs) do
			if type(v) == 'string' then
				v = mw.text.trim(v)
			end
			if v ~= '' then
				args[k] = v
			end
		end
		return p[funcName](processPortalArgs(args)) -- passes two tables to func: an array of portal names, and a table of named arguments.
	end
end

for _, funcName in ipairs{'portal', 'image', 'imageDupes', 'displayAll'} do
	p[funcName] = makeWrapper('_' .. funcName)
end

return p