local URL = "https://john.citrons.xyz/api/minecraft"

local framebuf = require("framebuf")
local fb = framebuf.new()

local function splitw(str)
	local res = {}
	for s in str:gmatch("%S+") do
		table.insert(res,s)
	end
	return res
end

local monitors = splitw(settings.get"john.monitors")
if monitors == nil or #monitors < 1 then
	error("need john.monitors setting")
end

function main()
	while true do
		local h = assert(http.get(URL, {}, true))
		fb:ppm(h)

		local W,H = fb:get_size()

		local total_width = 0
		for ix,iname in ipairs(monitors) do
			local mon = peripheral.wrap(iname)
			mon.setTextScale(0.5)
			total_width = total_width + (mon.getSize())*2
		end
		local leftover = total_width - W
		print("mmm",total_width,W,leftover)
		local xoffs = -math.floor(leftover/2)

		for ix,iname in ipairs(monitors) do
			print("doing",ix,iname,"at",xoffs)
			local mon = peripheral.wrap(iname)
			mon.clear()
			mon.setTextScale(0.5)
			local _, bee = pcall(function() fb:present(mon,xoffs,0) end)
			xoffs = xoffs + (mon.getSize())*2 + 8
			-- print(bee)
		end

		h.close()

		os.sleep(30)
	end
end

while true do
	local ok, err = pcall(main)
	if not ok then
		print("error",err)
		os.sleep(5)
	end
end