Module:Banner shell

local p = {}
p.main = function(frame)
	local yesno = require('Module:Yesno')
	local classmask = require('Module:Class mask')
	local args = frame:getParent().args
	local class = classmask._main{args.class or ''}
	local pagetype = require('Module:Pagetype')._main{class=class}
	local out = ''
	local ofinterest = function(collapsed)
		local wikiprojects = '[[Wikipedia:WikiProject|WikiProjects]]'
		local text = ' is of interest to '
		if yesno(collapsed) then
			text = text .. 'multiple ' .. wikiprojects .. '.'
		else
			text = text .. 'the following ' .. wikiprojects .. ':'
		end
		return text
	end
	if yesno(args.blp) or yesno(args.living) then
		out = out .. frame:expandTemplate{title = 'BLP'}
	elseif yesno(args.blpo) then
		out = out .. frame:expandTemplate{title = 'BLP others'}
	end
	if yesno(args.activepol) then
		out = out .. frame:expandTemplate{title = 'Active politician'}
	end
	local bhargs = {
		templatestyles = 'WikiProject banner shell/styles.css',
		collapsed = args.collapsed,
		size = '32',
		class = 'wpbs',
		image = 'WikiProject Council with transparent background.svg',
		alt = 'WikiProject Council',
		image_link = 'Wikipedia:WikiProject Council'
	}
	local globalclass = false
	if class == '' then -- check if class parameters is defined by any project banner
		local articleclass = classmask.readarticleclass{ignore_blank=true, only_subtemplates=true}
		if articleclass == '' then -- no class parameters are defined by any project banner, so globally unassessed
			globalclass = true
		end
	else -- global class defined, so display it
		globalclass = true
	end
	if globalclass then
		local showclass = require('Module:Class')._class
		local header = showclass{class, image='yes'}
		header = header .. '<td class="banner-shell-header" style="text-align: left; font-weight: normal;">This '
		if args.category == 'no' then
			header = header .. 'article '
		else
			header = header .. pagetype .. ' ' 
		end
		if class == '' then
			header = header .. 'has not yet been rated'
		else
			header = header .. 'is rated <span style="font-weight:bold;">' .. class .. '-class</span>'
		end
		header = header .. " on Wikipedia's [[Wikipedia:Content assessment|content assessment]] scale.<br>"
		if args[1] and args[1]~='' then
			header = header .. 'It' .. ofinterest(args.collapsed)
		else
			if not args.category or args.category=='' then
				if mw.title.getCurrentTitle().isTalkPage then
					header = header .. '[[Category:' .. (class=='' and 'Unassessed' or (class .. '-Class')) .. ' articles]]'
				end
			end
		end
		header = header .. '</td>'
		bhargs.header = header
	end
	if args.header then
		bhargs.text = args.header
	else
		bhargs.text = 'This ' .. pagetype .. ofinterest(args.collapsed)
	end
	bhargs[1] = args[1] or ''
	out = out .. frame:expandTemplate{title='Banner holder', args=bhargs}
	if not args[1] or args[1] == '' then
		out = out .. '[[Category:Pages using WikiProject banner shell without banner templates]]' --talkother
	end
	if args.listas and args.listas ~= '' then
		frame:preprocess('{{DEFAULTSORT:' .. args.listas .. '}}')
	end
	return out
end
return p
Module:Banner shell

Usage
