#!/bin/bash

# Put your UUID here, and keep it secret!
UUID="00000000-0000-0000-0000-000000000000"
PEERFINDER="http://172.23.184.112:8888"
NB_PINGS=5
SLEEP=10

[ -z "$1" ] && FAMILY="ipv4" || FAMILY="ipv6"

[ "$FAMILY" = "ipv4" ] && PING="ping" || PING="ping6"

while :
do
    sleep "$SLEEP"
    curl "$PEERFINDER"/target/"$UUID"/"$FAMILY" > /tmp/"$FAMILY" 2> /dev/null
    read -r id ip < /tmp/"$FAMILY"
    # Avoid empty fields
    [ -z "$id" -o -z "$ip" ] && continue
    # Make sure "id" is an integer
    printf "%d" "$id" > /dev/null 2>&1 || continue
    rtt="$($PING -c "$NB_PINGS" "$ip" | grep rtt | cut -d '/' -f 5)"
    [ -z "$rtt" ] && continue
    echo "RTT to target $id ($ip) is $rtt"
    curl -d "target=${id}&rtt=${rtt}" "$PEERFINDER"/result/report/"$UUID"
done