#!/bin/sh
# network module for status/stellar

# load config
module_config
[ -e "$HOME/.config/speedwm/statusrc" ] && . $HOME/.config/speedwm/statusrc
[ "$ENABLE_ITEM6" = "true" ] || exit

# get stats
GETNSTAT() {
	R1="$(cat /sys/class/net/[ew]*/statistics/rx_bytes || exit)"
	T1="$(cat /sys/class/net/[ew]*/statistics/tx_bytes || exit)"
	sleep 0.1
	R2="$(cat /sys/class/net/[ew]*/statistics/rx_bytes || exit)"
	T2="$(cat /sys/class/net/[ew]*/statistics/tx_bytes || exit)"
	TXPMS="$(expr $T2 - $T1)"
	RXPMS="$(expr $R2 - $R1)"
	TX="$(expr $TXPMS / 1024 "*" 10)"
	RX="$(expr $RXPMS / 1024 "*" 10)"
	[ ! -z "$TX" ] && printf "$TX\n" > /tmp/module_net_tx
	[ ! -z "$RX" ] && printf "$RX\n" > /tmp/module_net_rx
}

[ ! -e "/tmp/module_net_tx" ] && GETNSTAT
		
NETWORK_TRANSMITTED="$(cat /tmp/module_net_tx)"
NETWORK_RECEIVED="$(cat /tmp/module_net_rx)"

# click
CLICK() {
		# values
		ICON="$ITEM6_ICON"
		[ -e "/tmp/speedwm-button" ] && BUTTON="$(cat /tmp/speedwm-button)" || BUTTON="0"
        [ -z "$TERMINAL" ] && TERMINAL=st
        [ ! -z "$ICON" ] && ICONSPACING=" " # one character spacing
		
        # check value of button
		case "$BUTTON" in
		"3") $TERMINAL -e bmon ; return ;;
		esac
		
		# send the notification
		SEND_NOTIF() {
				FULL_NETWORK="${ICON}${ICONSPACING}${NETWORK_TRANSMITTED} transmitted, ${NETWORK_RECEIVED} received."
				notify-send "$FULL_NETWORK"
		
                # some information
				echo "Notification sent successfully!"
				echo "INFO: $FULL_NETWORK"
		
				return
		}
		
		command -v notify-send > /dev/null && SEND_NOTIF || echo "FATAL: libnotify not installed, can't send notification."
        return
}

# information itself
PRINT() {
    [ ! -z "$NETWORK_TRANSMITTED" ] && [ ! -z "$NETWORK_RECEIVED" ] && echo "$ITEM6_SEPARATOR $ITEM6_ICON $ITEM6_FORMAT" | sed "s|@t|$NETWORK_TRANSMITTED|g; s|@r|$NETWORK_RECEIVED|g"
}

# argument 1
case "$1" in
"") CLICK ;;
"--print-file") PRINT > /tmp/module_net ;;
"--print") PRINT ;;
"--click") CLICK ;;
esac

# gather some stats before exiting
GETNSTAT