Module:Routelist bottom

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local p = {}

local types = mw.loadData("Module:Road data/RJL types")

local function parameterParser(args)
	local keysParam = args.keys
	if not(keysParam) then return {} end
	local keys = mw.text.split(keysParam, ",")
	table.sort(keys)
	return keys
end

local function createLegend(key, html_object)
	local listargs = {
		class = 'routelist-bottom-legend'
	}
	
	for _,v in ipairs(key) do
		local type = types[v]
		if type then
			table.insert(
				listargs,
				'<span style="background-color: ' .. type.color ..
				'">&nbsp;&nbsp;&nbsp;&nbsp;</span>&nbsp; ' .. type.routelist
			)
		end
	end
	
	html_object:wikitext(require('Module:List').horizontal(listargs))
end

function p._bottom(args)
	local root = mw.html.create('tr'):addClass('sortbottom')
	row = root:tag('td')
	row:attr('colspan', '9')
		:addClass('routelist-bottom')
		-- we would prefer to add the TemplateStyles before the class is declared
		-- but that's not really feasible in this particular table context
		:wikitext(mw.getCurrentFrame():extensionTag{
			name = 'templatestyles', args = { src = 'Module:Routelist bottom/styles.css' }
		})

	local conversion
	if (args.conv or 'no') == 'yes' then
		conversion = "1.000&nbsp;mi = 1.609&nbsp;km; 1.000&nbsp;km = 0.621&nbsp;mi<br>"
	end
	row:wikitext(conversion)
	
	local text
	local note = args.note
	if note ~= '' then
		text = note
	end
	row:wikitext(text)
	
	local key = parameterParser(args)
	if key[1] then createLegend(key, row) end
	
	if #row.nodes == 0 then
		return '|-\n|}'
	else
		return tostring(root) .. '\n|-\n|}'
	end
end

function p.bottom(frame)
	return p._bottom(require('Module:Arguments').getArgs(frame))
end

return p