os.loadAPI('lib/utils')
os.loadAPI('lib/json')

--- Checks if given player is in a buildzone
-- Uses a playerdata object and the buildzone selector
-- @param player A playerdata object from newPlayerData()
-- @param buildzone A buildzone object to get the selector from
-- @return result True if the player is in the buildzone
function checkForPlayers(_box)
	local result,message = commands.testfor('@a['.._box.selector..']')

	if result == true then
		local names = {}
		for i,entry in ipairs(message) do
			local name = string.sub(entry, 7, -1)
			print(name)
			--[[
			--debug.log("starting message decoding: "..result)
			local wordpattern = "[^, ]+"
			local numberpattern = "[%-% ]%d+[%.]%d+"
			local words,numbers = {},{}
			--debug.log("finding words: "..result)
			for word in string.gmatch(result, wordpattern) do
    			table.insert(words,word)
  		  	end
    		--debug.log("finding numbers: "..result)
			for number in string.gmatch(result, numberpattern) do
				table.insert(numbers,number)
			end

			local coords = {
				x = math.floor(numbers[1]),
				y = math.floor(numbers[2]),
				z = math.floor(numbers[3])
				}
			local name = words[2]
			--debug.log("inserting into names list: "..name)
			--]]
			table.insert(names,name)
		end
		return names
	end
	--debug.log("getAllPos completed")
	return nil
end

local ox,oy,oz = commands.getBlockPosition()

local bb = utils.box(ox-19,oy,oz-19,39,3,39)

while true do
	print(json.encode(checkForPlayers(bb)))
	print(json.encode(checkForPlayers(bb)[2]))
end