Weather Control System Control System - Client

local m = peripheral.find "modem"
local function exec_command(cmd, ...)
    m.transmit(666, 666, { "command", cmd, ... })
    m.open(666)
    local timer = os.startTimer(2)
    while true do
        local e, timer_ID, c, _, msg = os.pullEvent()
        if e == "timer" and timer_ID == timer then
            error("command " .. cmd .. " timed out")
        elseif e == "modem_message" and c == 666 and type(msg) == "table" and msg[2] == cmd then
            if msg[1] == "error" then
                error("remote error from command " .. cmd .. ": " .. msg[3])
            elseif msg[1] == "result" then
                return msg[3]
            end
        end
    end
end

local weather = ...
print("Selected weather:", weather)
print "Sending command..."
local res = exec_command("set_weather", weather)
print("Remote result:", res)