-- This module implements the {{lua}} template.

local yesno = require('Module:Yesno')

local mList = require('Module:List')

local mTableTools = require('Module:TableTools')

local mMessageBox = require('Module:Message box')



local p = {}



function p.main(frame)

	local origArgs = frame:getParent().args

	local args = {}

	for k, v in pairs(origArgs) do

		v = v:match('^%s*(.-)%s*$')

		if v ~= '' then

			argsk = v

		end

	end

	return p._main(args)

end



function p._main(args)

	local modules = mTableTools.compressSparseArray(args)

	local box = p.renderBox(modules)

	local trackingCategories = p.renderTrackingCategories(args, modules)

	return box .. trackingCategories

end



function p.renderBox(modules)

	local boxArgs = {}

	if #modules < 1 then

		boxArgs.text = '<strong class="error">Error: no modules specified</strong>'

	else

		local moduleLinks = {}

		for i, module in ipairs(modules) do

			moduleLinksi = string.format('[[:%s]]', module)

			local maybeSandbox = mw.title.new(module .. '/sandbox')

			if maybeSandbox and maybeSandbox.exists then

				moduleLinksi = moduleLinksi .. string.format(' ([[:%s|sandbox]])', maybeSandbox.fullText)

			end

		end

		local moduleList = mList.makeList('bulleted', moduleLinks)

		local title = mw.title.getCurrentTitle()

		if title.subpageText == "doc" then

			title = title.basePageTitle

		end

		if title.contentModel == "Scribunto" then

			boxArgs.text = 'This module depends on the following other modules:' .. moduleList

		else

			boxArgs.text = 'This template  uses [[Wikipedia:Lua|Lua]]:\n' .. moduleList

		end

	end

	boxArgs.type = 'notice'

	boxArgs.small = true

	boxArgs.image = '[[File:Lua-Logo.svg|30px|alt=|link=]]'

	return mMessageBox.main('mbox', boxArgs)

end



function p.renderTrackingCategories(args, modules, titleObj)

	if yesno(args.nocat) then

		return ''

	end



	local cats = {}



	-- Error category

	if #modules < 1 then

		cats#cats + 1 = 'Lua templates with errors'

	end



	-- Lua templates category

	titleObj = titleObj or mw.title.getCurrentTitle()

	local subpageBlacklist = {

		doc = true,

		sandbox = true,

		sandbox2 = true,

		testcases = true

	}

	if not subpageBlacklisttitleObj.subpageText then

		local protCatName

		if titleObj.namespace == 10 then

			local category = args.category

			if not category then

				local categories = {

					'Module:String' = 'Templates based on the String Lua module',

					'Module:Math' = 'Templates based on the Math Lua module',

					'Module:BaseConvert' = 'Templates based on the BaseConvert Lua module',

					'Module:Citation/CS1' = 'Templates based on the Citation/CS1 Lua module'

				}

				category = modules1 and categoriesmodules1]]

				category = category or 'Lua-based templates'

			end	

			cats#cats + 1 = category

			protCatName = "Templates using under-protected Lua modules"

		elseif titleObj.namespace == 828 then

			protCatName = "Modules depending on under-protected modules"

		end

		if not args.noprotcat and protCatName then

			local protLevels = {

				autoconfirmed = 1,

				extendedconfirmed = 2,

				templateeditor = 3,

				sysop = 4

			}

			local currentProt

			if titleObj.id ~= 0 then

				-- id is 0 (page does not exist) if am previewing before creating a template.

				currentProt = titleObj.protectionLevels"edit"][1

			end

			if currentProt == nil then currentProt = 0 else currentProt = protLevelscurrentProt end

			for i, module in ipairs(modules) do

				if module ~= "WP:libraryUtil" then

					local moduleTitle = mw.title.new(module)

					local moduleProt = moduleTitle and moduleTitle.protectionLevels"edit"][1

					if moduleProt == nil then moduleProt = 0 else moduleProt = protLevelsmoduleProt end

					if moduleProt < currentProt then

						cats#cats + 1 = protCatName

						break

					end

				end

			end

		end

	end

	for i, cat in ipairs(cats) do

		catsi = string.format('[[Category:%s]]', cat)

	end

	return table.concat(cats)

end



return p