Moduł:Portal

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Moduł wykorzystywany przez szablon {{Portal}}
--[==[ 
Zobacz też [[Moduł:Portal/grafika]]
]==]
 
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
	imagePage = 'Module:Portal/grafika'
	return mw.loadData(imagePage)[s]
end
 
local function getImageName(s)
	-- Gets the image name for a given string.
	if type(s) ~= 'string' or #s < 1 then
		return 'OpenEye icon.svg'
	end
	s = mw.ustring.lower(s)
	return matchImagePage(s) or 'OpenEye icon.svg'
end
 
function p._portal(portals, args)
	-- This function builds the portal box used by the {{portal}} template.
	local root = mw.html.create('table')
		:addClass('infobox noprint plainlinks')
		:attr('cellpadding', 4)
		:newline()
 
	-- If no portals have been specified, display an error and add the page to a tracking category.
	if not portals[1] then
		root:tag('tr')
			:tag('td')
				:attr('colspan', '2')
				:css('font-size', '90%')
				:wikitext('<strong class="error">Nie podano żadnego portalu: proszę podać chociaż jeden portal</strong>[[Kategoria:Szablony portali z błędami]]')
			:done()
		:done()
		:newline()
	end
 
	-- 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.
		root:tag('tr')
			:tag('td')
				:css('vertical-align', 'middle')
				:css('text-align', 'center')
				:css('width', '30px')
				:wikitext(string.format('[[Plik:%s|32x28px|alt=Ikona portalu|class=noviewer]]', image))
			:done()
			:tag('td')
				:css('vertical-align', 'middle')
				:css('text-align', 'center')
				:css('line-height', 'normal') 
				:wikitext(string.format('[[Portal:Portale|Portal]]: \'\'\'[[Portal:%s|%s]]\'\'\'', portal, portal))
			:done()
		:done()
		:newline()
	end
	return tostring(root)
end
 
function p._image(portals)
 
	-- Wrapper function to allow getImageName() to be accessed through #invoke.
	return getImageName(portals[1])
end
 
local function getAllImageTables()
	local images = {}
	images[i] = mw.loadData('Module:Portal/grafika')
	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.
	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