import subprocess
import re


def run_ping(host, count):
    command = "/bin/ping -f -q -c {0} -n {1}".format(count, host)
    process = subprocess.Popen(command.split(), stdout=subprocess.PIPE, stderr=subprocess.PIPE)
    ping = process.communicate()
    return(ping)


def get_interface(interface):
    if interface:
        process = subprocess.Popen("/sbin/ifconfig", stdout=subprocess.PIPE, stderr=subprocess.PIPE)
        ifconfig = process.communicate()
        hasinterface = [x for x in ifconfig[0].split() if x == interface]
        return(hasinterface)


def __run__(params):
    try:
        intout = params.get("interface", False)
        remoteaddr = params.get("ip", False)
        maxloss = params.get("maxloss", 50)
        maxtime = params.get("maxtime", 3000)
        interface = get_interface(intout) if intout else False

        if not remoteaddr:
            return([2, "Verifique o YAML e informe os valores para IP/HOST?"])

        elif not interface:
            return([0, "Interface desconhecida - Servidor Stand-by."])

        else:
            ping = run_ping(remoteaddr, 10)
            loss = re.search(r"\d%", ping[0])
            time = re.search(r"\dms", ping[0])

            if int(loss.group().replace("%", "")) <= maxloss and int(time.group().replace("ms", "")) <= maxtime:
                return([0, "OK - Perda de Pacotes: {0} - Latencia: {1}".format(loss.group(), time.group())])
            else:
                return([2, "Perda de Pacotes: {0} - Latencia: {1}".format(loss.group(), time.group())])

    except Exception, err:
        return([2, err])