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2016-06-21T08:37:39Z

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--[==[
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

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