#!/bin/sh
MODEM_INTF=$1
[ -z "$MODEM_INTF" ] && return
timeout 1 mmcli -L | while read MODEM; do
	MODEM_ID=$(echo $MODEM |  awk -F' ' '{print $1}' | awk -F/ '{print $6}')
	MODEM_INFO="$(timeout 1 mmcli -m $MODEM_ID --output-keyvalue)"
	if [ -n "$MODEM_INFO" ] && [ "$(echo "$MODEM_INFO" | grep 'modem.generic.device ' | awk -F": " '{print $2}')" = "$MODEM_INTF" ]; then
		PERCENT=$(echo "$MODEM_INFO" | grep 'modem.generic.signal-quality.value' | awk -F": " '{print $2}')
		echo $PERCENT
		exit
	fi
done