#!/bin/sh
# passive GET-only watch ~5 min
O=/tmp/beewatch.txt; : > $O; t() { cut -d' ' -f1 /proc/uptime; }; Q="qmicli -p -d /dev/wwan0qmi0"
for i in $(seq 1 30); do
  R=$(timeout 20 $Q --nas-get-serving-system 2>&1); S=$(timeout 20 $Q --nas-get-signal-info 2>&1); F=$(timeout 20 $Q --nas-get-rf-band-info 2>&1)
  echo "### $(t) $(echo "$R" | grep -E "Registration state|PS:|Status:" | tr -s ' \t\n' ' ') | $(echo "$S" | grep -E "RSRQ|RSRP|SNR" | tr -s ' \t\n' ' ') | $(echo "$F" | grep -E "Band Class|Channel" | tr -s ' \t\n' ' ')" >> $O
  echo "$R" | grep -q "Registration state: 'registered'" && echo "$R" | grep -q "PS: 'attached'" && { echo REGISTERED >> $O; break; }
  sleep 7
done
timeout 20 $Q --nas-get-serving-system >> $O 2>&1; timeout 20 $Q --nas-get-cell-location-info >> $O 2>&1; echo BEEWATCH-DONE >> $O