local mArguments --initialize lazily

local mHatnote = require('Module:Hatnote')

local mHatList = require('Module:Hatnote list')

local libraryUtil = require('libraryUtil')

local checkType = libraryUtil.checkType

local p = {}



function p.about (frame)

	-- A passthrough that gets args from the frame and all

	mArguments = require('Module:Arguments')

	args = mArguments.getArgs(frame)

	return p._about(args)

end





function p._about (args, options)

	-- Produces "about" hatnote.



	-- Type checks and defaults

	checkType('_about', 1, args, 'table', true)

	args = args or {}

	checkType('_about', 2, options, 'table', true)

	options = options or {}

	local defaultOptions = {

		aboutForm = 'This %s is about %s. ',

		PageType = require('Module:Pagetype').main(),

		otherText = nil, --included for complete list

		sectionString = 'section'

	}

	for k, v in pairs(defaultOptions) do

		if optionsk == nil then optionsk = v end

	end



	-- Set initial "about" string

	local pageType = (args.section and options.sectionString) or options.PageType

	local about = ''

	if args1 then

		about = string.format(options.aboutForm, pageType, args1])

	end

	

	--Allow passing through certain options

	local fsOptions = {

		otherText = options.otherText,

		extratext = args.text

	}

	local hnOptions = {

		selfref = args.selfref

	}



	-- Set for-see list

	local forSee = mHatList._forSee(args, 2, fsOptions)



	-- Concatenate and return

	return mHatnote._hatnote(about .. forSee, hnOptions)

end



return p