Editing Module:Sanctions/AlertHelper

local p = {}
local getArgs = require('Module:Arguments').getArgs
local checkIfValidTopic = require('Module:Sanctions').checkIfValidTopic

local function tableContains(needle, haystack)
	for _, v in pairs(haystack) do
		if v == needle then
			return true
		end
	end
	return false
end

local function syntaxHelp()
	return [[<span class="error">{{para|topic}} not specified. Available options:</span><div style="border-left: 5px dashed black; border-right: 5px dashed black; border-bottom: 5px dashed black; padding-left: 0.5em; padding-right: 0.5em; padding-bottom: 0.5em;">
	{{Ds/topics/table}}
	{{Gs/topics/table|subst=y}}
	</div>]]
end


function p.build(frame, args)
	local topic = args[1] or args['topic']
	local args = { topic, args[2], sig = args['sig'] }

	if not topic then
		return frame:preprocess(syntaxHelp())
	end

	if checkIfValidTopic(topic) then
		return frame:expandTemplate {
			title = 'Gs/alert',
			args = args
		}
	else
		-- return to ds template, let it error if not recognised
		return frame:expandTemplate {
			title = 'Ds/alert',
			args = args
		}
	end
end

function p.main(frame)
	local args = getArgs(frame, {
		wrappers = {
			'Template:Alert',
			'Template:Alert/sandbox'
		}
	})
	return p.build(frame, args)
end

return p