local getArgs = require('Module:Arguments').getArgs

local p = {}



-- Fetch expansions of Editing advice meta templates

local function getRequestedAdvice(haystack, needle, pages)

	-- if a request is made for that advice

	if string.match(haystack, needle) then

		return mw.getCurrentFrame():expandTemplate{

					title = 'Editing advice/meta/' .. needle,

					args = pages or {}

			   }

	end

	return ''

end



-- Return concatenation of fetched template expansions

local function compileRequestedAdvice(about, pages)

	return getRequestedAdvice(about, 'preview', pages) ..

		   getRequestedAdvice(about, 'summary') ..

		   getRequestedAdvice(about, 'sandbox')

end



--[[ Main function: iterates through provided params and uses

		what is discovered to call for and organise the requested output ]]

function p._getAdvice(cleanargs)

	-- Create capturing vars for data

	local about = ''

	local pages = {}

	local section = {}

	local f = mw.getCurrentFrame()

	-- Iterate through provided params

	for key, value in pairs(cleanargs) do

		-- If the param specifies the advice requested

		if key == 'about' then

			-- store the value

			about = value

		-- If the param specifies the section heading option

		elseif key == 'section' then

			-- store the value

			section1 = value

		else

		--[[ If neither of the above, these params must be pages

				 so store the values as they are processed ]]

			pages#pages + 1 = value

		end

	end

	-- Output concatenation of fetched strings

	return f:expandTemplate{

				title = 'Editing advice/meta/start',

				args = section

		   } ..

		   compileRequestedAdvice(about, pages) ..

		   f:expandTemplate{

				title = 'Editing advice/meta/end'

		   }

end



--Get and cleanup frame args and pass them to _getAdvice

function p.getAdvice(frame)

	local args = getArgs(frame)

	return p._getAdvice(args)

end



return p