Modul:Premjestiti

Dokumentaciju za ovaj modul možete napraviti na stranici Modul:Premjestiti/dok

-- This module implements {{requested move}}.

-- Load necessary modules
local getArgs = require('Module:Arguments').getArgs
local tableTools = require('Module:TableTools')
local yesno = require('Module:Yesno')
local mRedirect = require('Module:Redirect')

-- Set static values
local defaultNewPagename = '?' -- Name of new pages that haven't been specified

local p = {}

--------------------------------------------------------------------------------
-- Helper functions
--------------------------------------------------------------------------------
 
local function err(msg, numargs, reason, count)
	-- Generates a wikitext error message
	local commented = '<!-- {{subst:requested move|'
	if count ~= 1 then
	   commented = commented .. 'new1='
	end
	commented = commented .. numargs[1]['new']
	for i = 2,count do
		commented = commented .. string.format('|current%i=%s', i, (numargs[i]['current'] or ''))
		commented = commented .. string.format('|new%i=%s', i, (numargs[i]['new'] or ''))
	end
	if reason then 
	    commented = commented .. '|reason=' .. reason
	end
	commented = commented .. '}} -->'
	return string.format('{{error|%s}}', msg) .. commented
end

local function validateTitle(page, paramName, paramNum) 
	-- Validates a page name, and if it is valid, returns true and the title
	-- object for that page. If it is not valid, returns false and the
	-- appropriate error message.

	-- Check for a small subset of characters that cannot be used in MediaWiki
	-- titles. For the full set of restrictions, see
	-- [[Wikipedia:Page name#Technical restrictions and limitations]]. This is
	-- also covered by the invalid title check, but with this check we can give
	-- a more specific error message.
	local invalidChar = page:match('[#<>%[%]|{}]')
	if invalidChar then
		local msg = 'Invalid character "'
			.. invalidChar
			.. '" found in the "'
			.. paramName
			.. paramNum
			.. '" parameter'
		return false, msg
	end

	-- Get the title object. This also checks for invalid titles that aren't
	-- covered by the previous check.
	local titleObj = mw.title.new(page)
	if not titleObj then
		local msg = 'Invalid title detected in parameter "'
			.. paramName
			.. paramNum 
			.. '"; check for [[Wikipedia:Page name#'
			.. 'Technical restrictions and limitations|invalid characters]]'
		return false, msg
	end

	-- Check for interwiki links. Titles with interwikis make valid title
	-- objects, but cannot be created on the local wiki.
	local interwiki = titleObj.interwiki
	if interwiki and interwiki ~= '' then
		local msg = 'Invalid title detected in parameter "'
			.. paramName
			.. paramNum 
			.. '"; has [[Help:Interwiki linking|interwiki prefix]] "'
			.. titleObj.interwiki
			.. ':"'
		return false, msg
	end

	return true, titleObj
end

--------------------------------------------------------------------------------
-- Validate title entry point (used at [[Template:RMassist/core]])
--------------------------------------------------------------------------------
function p.validateTitle(frame)
	local value = frame.args[1]
	local validTitle, currentTitle = validateTitle(value or '', '1', '')
	if not validTitle then
		-- If invalid, the second parameter is the error message.
		return currentTitle
	end
	return 'yes'
end

--------------------------------------------------------------------------------
-- Confirm protection levels (used at [[Template:Requested move/dated]])
--------------------------------------------------------------------------------

function p.protected(frame)
	local args = getArgs(frame, {parentOnly = true})
	if args.protected then
		local levels = mw.title.new(args.protected).protectionLevels
		local levelMove = levels['move'] and levels['move'][1]
		local levelEdit = levels['edit'] and levels['edit'][1]
		local levelCreate = levels['create'] and levels['create'][1]
		if levelMove == 'sysop' 
		or levelEdit == 'sysop' 
		or levelEdit == 'editprotected' 
		or levelCreate == 'sysop' then
			return 'sysop'
		elseif levelMove == 'templateeditor' 
		or levelEdit == 'templateeditor' 
		or levelCreate == 'templateeditor' then
			return 'templateeditor'
		end
	end
end

--------------------------------------------------------------------------------
-- Main function
--------------------------------------------------------------------------------

function p.main(frame)
	----------------------------------------------------------------------------
	-- Initialise variables and preprocess the arguments
	----------------------------------------------------------------------------
	
	local args = getArgs(frame, {parentOnly = true})
	local title = mw.title.getCurrentTitle()

	--[[
	-- To iterate over the current1, new1, current2, new2, ... arguments
	-- we get an array of tables sorted by number and compressed so that
	-- it can be traversed with ipairs.	The table format looks like this:
	-- {
	--  {current = x, new = y, num = 1},
	--  {current = z, new = q, num = 2},
	--  ...
	-- }
	-- The "num" field is used to correctly preserve the number of the parameter
	-- that was used, in case users skip any numbers in the invocation.
	--
	-- The current1 parameter is a special case, as it does not need to be
	-- specified. To avoid clashes with later current parameters, we need to
	-- add it to the args table manually.
	--
	-- Also, we allow the first positional parameter to be an alias for the
	-- new1 parameter, so that the syntax for the old templates
	-- {{requested move}} and {{move-multi}} will both be supported.
	--
	-- The "multi" variable tracks whether we are using the syntax previously
	-- produced by {{requested move}}, or the syntax previously produced by
	-- {{move-multi}}. For the former, multi is false, and for the latter it is
	-- true.
	--]]
	if not args.current1 then
		args.current1 = title.subjectPageTitle.prefixedText
	end

	-- Find the first new page title, if specified, and keep a record of the
	-- prefix used to make it; the prefix will be used later to make error
	-- messages.
	local firstNewParam
	if args.new1 then
		firstNewParamPrefix = 'new'
	elseif args[1] then
		args.new1 = args[1]
		firstNewParamPrefix = ''
	else
		firstNewParamPrefix = ''
	end

	-- Build the sorted argument table.
	local argsByNum = {}
	for k, v in pairs(args) do
		k = tostring(k)
		local prefix, num = k:match('^(%l*)([1-9][0-9]*)$')
		if prefix == 'current' or prefix == 'new' then
			num = tonumber(num)
			local subtable = argsByNum[num] or {}
			subtable[prefix] = v
			subtable.num = num
			argsByNum[num] = subtable
		end
	end
	argsByNum = tableTools.compressSparseArray(argsByNum)

	-- Calculate the number of arguments and whether we are dealing with a
	-- multiple nomination.
	local argsByNumCount = #argsByNum
	local multi = (argsByNumCount >= 2)

	--[[
	-- Validate new params.
	-- This check ensures we don't have any absent new parameters, and that
	-- users haven't simply copied in the values from the documentation page.
	--]]
	if multi then
		for i, t in ipairs(argsByNum) do
			local new = t.new
			local num = t.num
			if not new or new == 'New title for page ' .. tostring(num) then
				argsByNum[i].new = defaultNewPagename
			end
		end
	else
		local new = argsByNum[1].new
		if not new or new == 'NewName' then
			argsByNum[1].new = defaultNewPagename
		end
	end
	
	----------------------------------------------------------------------------
	-- Error checks
	----------------------------------------------------------------------------
	
	-- Subst check
	if not mw.isSubsting() then
		local lb = mw.text.nowiki('{{')
		local rb = mw.text.nowiki('}}')
		local msg = '<strong class="error">'
			.. 'Ovaj šablon mora biti [[:en:Wikipedia:Template substitution|supstituiran]];'
			.. ' zamijeniti %sPremjestiti%s sa %ssubst:Premjestiti%s'
			.. '</strong>'
		msg = string.format(msg, lb, rb, lb, rb)
		return msg
	end
	
	-- Check we are on a talk page
	if not title.isTalkPage then
		local msg = 'Šablon {{[[Šablon:Premjestiti|premjestiti]]}} mora da se koristi u imenskome prostoru ’Razgovor’ ([[%s:%s]])'
		msg = string.format(msg, mw.site.namespaces[title.namespace].talk.name, title.text)
		return err(msg, argsByNum, args.reason, argsByNumCount)
	end
	
	-- Check the arguments
	local currentDupes, newDupes = {}, {}
	for i, t in ipairs(argsByNum) do
		local current = t.current
		local new = t.new
		local num = t.num
		local validCurrent
		local currentTitle
		local subjectSpace

		-- Check for invalid or missing currentn parameters
		-- This check must come first, as mw.title.new will give an error if
		-- it is given invalid input.
--		if not current then
--			local msg = '"current%d" parameter missing;'
--				.. ' please add it or remove the "new%d" parameter'
--			msg = string.format(msg, num, num)
--			return err(msg, argsByNum, args.reason, argsByNumCount)
--		end

		-- Get the currentn title object, and check for invalid titles. This check
		-- must come before the namespace and existence checks, as they will
		-- produce script errors if the title object doesn't exist.
		validCurrent, currentTitle = validateTitle(current, 'current', num)
		if not validCurrent then
			-- If invalid, the second parameter is the error message.
			local msg = currentTitle 
			return err(msg, argsByNum, args.reason, argsByNumCount)
		end

		-- Category namespace check
		subjectSpace = mw.site.namespaces[currentTitle.namespace].subject.id
		if subjectSpace == 14 then
			local msg = '[[Template:Requested move]] is not for categories,'
				.. ' see [[Wikipedia:Categories for discussion]]'
			return err(msg, argsByNum, args.reason, argsByNumCount)
		
		-- File namespace check
		elseif subjectSpace == 6 then
			local msg = '[[Template:Requested move]] is not for files;'
				.. ' see [[Wikipedia:Moving a page#Moving a file page]]'
				.. ' (use [[Template:Rename media]] instead)'
			return err(msg, argsByNum, args.reason, argsByNumCount)

		-- Draft and User namespace check
		elseif subjectSpace == 2 or subjectSpace == 118 then
			local msg = '[[Template:Requested move]] is not for moves from draft or user space.'
				.. '<br>If you would like to submit your draft for review, add <code>{{tlf|subst:submit}}</code>'
				    .. 'to the top of the page.'
				.. '<br>Otherwise, see [[Help:How to move a page]] for instructions.'
				.. '<br>If you cannot move it yourself, see [[:en:Wikipedia:Requested moves#Requesting technical moves|Requesting technical moves]].'
			return err(msg, argsByNum, args.reason, argsByNumCount)
		end

		-- Request to move a single page must be placed on that page's talk, or the page it redirects to
		if not multi and args.current1 ~= title.subjectPageTitle.prefixedText then
			local idealpage = mw.title.new(args.current1).talkPageTitle
			local rtarget = mRedirect.getTarget(idealpage)
			if rtarget == title.prefixedText then
				multi = true
			else
				local msg = 'Zahtjev da se premjesti jedna stranica mora se staviti na stranicu za razgovor te stranice ili stranicu do koje ta stranica za razgovor preusmjerava'
				return err(msg, argsByNum, args.reason, argsByNumCount)
			end
		end

		-- Check for non-existent titles.
		if not currentTitle.exists then
			local msg = 'Mora se napraviti [[:%s]] prije zahtjevanja da se stranica premjesti'
			msg = string.format(msg, current)
			return err(msg, argsByNum, args.reason, argsByNumCount)
		end

		-- Check for duplicate current titles
		-- We know the id isn't zero because we have already checked for
		-- existence.
		local currentId = currentTitle.id
		if currentDupes[currentId] then
			local msg = 'Duplicate title detected ("'
				.. currentTitle.prefixedText
				.. '"); cannot move the same page to two different places'
			return err(msg, argsByNum, args.reason, argsByNumCount)
		else
			currentDupes[currentId] = true
		end

		-- Check for invalid new titles. This check must come before the
		-- duplicate title check for new titles, as it will produce a script
		-- error if the title object doesn't exist.
		local validNew, newTitle = validateTitle(
			new,
			multi and 'new' or firstNewParamPrefix,
			num
		)
		if not validNew then
			-- If invalid, the second parameter is the error message.
			local msg = newTitle
			return err(msg, argsByNum, args.reason, argsByNumCount)
		end

		-- Check for duplicate new titles.
		-- We can't use the page_id, as new pages might not exist, and therefore
		-- multiple pages may have an id of 0. Use the prefixedText as a
		-- reasonable fallback. We also need to check that we aren't using the
		-- default new page name, as we don't want it to be treated as a duplicate
		-- page if more than one new page name has been omitted.
		local newPrefixedText = newTitle.prefixedText
		if newPrefixedText ~= defaultNewPagename then
			if newDupes[newPrefixedText] then
				local msg = 'Duplicate title detected ("'
					.. newTitle.prefixedText
					.. '"); cannot move two different pages to the same place'
				return err(msg, argsByNum, args.reason, argsByNumCount)
			else
				newDupes[newPrefixedText] = true
			end
		end
	end
	
	----------------------------------------------------------------------------
	-- Check for page protection
	----------------------------------------------------------------------------
	
	local highestProtection = ''
	local protectedTitle = ''
	
	-- Checking page protection requires use of .protectionLevels(), one of the 
	-- "expensive" parser functions, which stop working after 500 uses total.
	-- Without some limit set, this starts breaking near 250 distinct titles.
	local titleLimit = 80
	local titlesChecked = 0
	local titles = {}
	-- Consolidate duplicate titles (i.e., when moving A to B and B to C)
	for i = 1,argsByNumCount do
		titles[mw.title.new(argsByNum[i]['current'])] = true
		titles[mw.title.new(argsByNum[i]['new'])] = true
	end
	-- Check each title t, while ignoring the "true" value
	for t, _ in pairs(titles) do
		if titlesChecked < titleLimit then
			local levels = t.protectionLevels
			titlesChecked = titlesChecked + 1
			local levelMove = levels['move'] and levels['move'][1]
			local levelEdit = levels['edit'] and levels['edit'][1]
			local levelCreate = levels['create'] and levels['create'][1]
			if levelMove == 'sysop' 
			or levelEdit == 'sysop' 
			or levelEdit == 'editprotected' 
			or levelCreate == 'sysop' then
				highestProtection = 'sysop'
				protectedTitle = tostring(t)
				break
			elseif levelMove == 'templateeditor' 
			or levelEdit == 'templateeditor' 
			or levelCreate == 'templateeditor' then
				highestProtection = 'templateeditor'
				protectedTitle = tostring(t)
			end
		else
		-- End the "for" loop if the titleLimit is reached
			break
		end
	end

	----------------------------------------------------------------------------
	-- Generate the heading
	----------------------------------------------------------------------------

	-- For custom values of |heading=, use those.
	-- For |heading=no, |heading=n, etc., don't include a heading.
	-- Otherwise use the current date as a heading.
	local heading = args.heading or args.header
	local useHeading = yesno(heading, heading)
	if heading and useHeading == heading then
		heading = '== ' .. heading .. ' ==\n\n'
	elseif useHeading == false then
		heading = ''
	else
		local lang = mw.language.getContentLanguage()
		local headingDate = lang:formatDate('j. F Y.')
		heading = '== Premjestiti, ' .. headingDate .. ' ==\n\n'
	end
	
	----------------------------------------------------------------------------
	-- Build the {{requested move/dated}} invocation
	----------------------------------------------------------------------------

	local rmd = {}
	rmd[#rmd + 1] = '{{Premjestiti'

	if multi then
		rmd[#rmd + 1] = '|multiple=yes'
		rmd[#rmd + 1] = '\n|current1=' .. argsByNum[1].current
	end

	--[[
	-- The first new title. This is used both by single and by multi; for single
	-- it is the only parameter used. For single the parameter name is the first
	-- positional parameter, and for multi the parameter name is "new1".
	--]]
	local new1param = multi and 'new1=' or ''
	rmd[#rmd + 1] = '|' .. new1param .. argsByNum[1].new

	-- Add more arguments for multi.
	if multi then
		for i = 2, argsByNumCount do
			local t = argsByNum[i]
			local numString = tostring(i)
			local current = t.current
			local new = t.new
			rmd[#rmd + 1] = '|current' .. numString .. '=' .. current
			rmd[#rmd + 1] = '|new' .. numString .. '=' .. new
		end
	end 
	
	-- Highest page protection (if admin or template-editor)
	if highestProtection == 'sysop' or highestProtection == 'templateeditor' then
		rmd[#rmd + 1] = '|protected=' .. protectedTitle
	end
	
	-- Pass through demo=yes to the 
	if args.demo ~= nil then
		rmd[#rmd + 1] = '|demo='
		rmd[#rmd + 1] = args.demo
	end
	
	-- The old multi template always has a bar before the closing curly
	-- braces, so we will do that too.
	if multi then
		rmd[#rmd + 1] = '|'
	end
	
	rmd[#rmd + 1] = '}}'
	rmd = table.concat(rmd)

	----------------------------------------------------------------------------
	-- Generate the list of links to the pages to be moved
	----------------------------------------------------------------------------

	local linkList = {}
	for i, t in ipairs(argsByNum) do
		local current = t.current
		local new = t.new
		local msg = '\n%s[[:%s]] → '
		if new ~= defaultNewPagename then
			msg = msg .. '{{no redirect|%s}}'
		else
			msg = msg .. '%s'
		end
		local item = string.format(
			msg,
			multi and '* ' or '', -- Don't make a list for single page moves.
			current,
			new
		)
		linkList[#linkList + 1] = item
	end
	linkList = table.concat(linkList)

	----------------------------------------------------------------------------
	-- Reason and talk blurb
	----------------------------------------------------------------------------

	-- Reason
	local reason = args.reason or args[2] or 'Molimo postavite svoj razlog za predloženo premještanje ovdje.'
	reason = '– ' .. reason
	if yesno(args.sign or args.sig or args.signature or 'unspecified', not reason:match("~~~$")) then
		reason = reason .. ' ~~~~'
	end

	-- Talk blurb
	local talk = ''
	if yesno(args.talk, true) then
		talk = frame:expandTemplate{title = 'Premjestiti/razgovor'}
	end

	----------------------------------------------------------------------------
	-- Assemble the output
	----------------------------------------------------------------------------

	-- The old templates start with a line break, so we will do that too.
	local ret = string.format(
		'\n%s%s\n%s%s%s%s',
		heading,
		rmd,
		linkList,
		multi and '\n' or ' ',
		reason,
		talk
	)
	return ret
end

return p