init

TIME=$(date +%s)

STEP=120

function display {

  # $1: first line

  # $2: 2nd line

  echo -ne '\e[1;1H\e[2J' # reset display content and cursor

  echo -n "$1"

  echo -ne '\n' # move to second line

  echo -n "$2"

}

function show_bw {

  RX=$(curl -s "https://mgmt.saar.freifunk.net/grafana/api/datasources/proxy/1/api/v1/query_range?query=total_traffic_rx_bits_per_second&start=$TIME&end=$TIME&step=$STEP" | jq .data.result[0].values[0][1] | cut -d '"' -f 2)

  TX=$(curl -s "https://mgmt.saar.freifunk.net/grafana/api/datasources/proxy/1/api/v1/query_range?query=total_traffic_tx_bits_per_second&start=$TIME&end=$TIME&step=$STEP" | jq .data.result[0].values[0][1] | cut -d '"' -f 2)

  RX=$(bc <<< "scale=1; $RX/1024/1024")

  TX=$(bc <<< "scale=1; $TX/1024/1024")

  display "$RX MBit/s down" "$TX MBit/s up"

}

function show_users {

  CLIENTS=$(curl -s "https://mgmt.saar.freifunk.net/grafana/api/datasources/proxy/1/api/v1/query_range?query=total_clients&start=$TIME&end=$TIME&step=$STEP" | jq .data.result[0].values[0][1] | cut -d '"' -f 2)

  NODES=$(curl -s "https://mgmt.saar.freifunk.net/grafana/api/datasources/proxy/1/api/v1/query_range?query=meshnodes_online_total&start=$TIME&end=$TIME&step=$STEP" | jq .data.result[0].values[0][1] | cut -d '"' -f 2)

  display "$CLIENTS Clients" "$NODES Knoten"

}

while true; do

  show_bw

  sleep 5

  show_users

  sleep 5

done