nanoLib

local event = require("event")
local modem = require("component").modem

local class = {}

local CODE_NANOMACHINES = "nanomachines"

local PORT = 1

function class.send(...)
  modem.broadcast(1, CODE_NANOMACHINES, ...)
end

function class.init(port)
  modem.close(PORT)
  PORT = port
  modem.open(PORT)
  class.send("setResponsePort", PORT)
end

function class.listen(callback)
  if (not modem.isOpen(PORT)) then
    modem.open(PORT)
  end
  event.listen("modem_message", function(_, _, _, _, _, header, ...)
    if (header == CODE_NANOMACHINES) then
      callback(...)
    end
  end)
end

function class.getPort()
  return PORT
end

return class