local args = {...}

function accept()
	rs.setBundledOutput("back", colors.yellow)
end

function reject()
	rs.setBundledOutput("back", colors.red)
end

function load()
	rs.setBundledOutput("back", colors.blue)
end

function sortChestContents()
	return sensors.getReading("top", "Sensor")[0]
end

function loadNext()
	local contents = nil

	load()

	repeat
		contents = sortChestContents()
		os.sleep(1)
	until contents ~= nil
end

function select(name)
	while true do
		loadNext()

		local contents = sortChestContents()
		print("item detected: " .. contents)

		if string.find(contents, name) then
			-- sort chest contains sought item
			accept()
			return
		else
			-- sort chest doesn't contain sought item
			reject()
		end
	end
end

select(args[1])