emcomm-tools-os-community/overlay/opt/emcomm-tools/bin/et-dump1090

#!/bin/bash
#
# Author  : Gaston Gonzalez
# Date    : 7 June 2025
# Purpose : Wrapper script around dump1090
#
# Preconditions:
# 1. RTL-SDR v2 is connected and detected
#
# Postconditions:
# 1. dump1099 map is updated with your position if available
# 2. dump1099 is launched with network and HTTP server support

source /opt/emcomm-tools/bin/et-common

DUMP1090_CONF_DIR="${HOME}/.local/share/emcomm-tools/dump1090"
DUMP1090_MAP_HTML="${DUMP1090_CONF_DIR}/gmap.html"

exit_if_no_sdr

if [[ ! -e ${DUMP1090_MAP_HTML} ]]; then
  et-log "Map HTML not found: ${DUMP1090_MAP_HTML}"
  notify-user "Map HTML not found: ${DUMP1090_MAP_HTML}"
  exit 1
fi

CWD_DIR=$(pwd)

cd ${DUMP1090_CONF_DIR}

MY_LAT_LON=$(et-system-info et-gps)
if [[ $? -eq 0 ]]; then
  if echo "${MY_LAT_LON}" | grep -Eq '^[-+]?[0-9]+(\.[0-9]+)?\s*,\s*[-+]?[0-9]+(\.[0-9]+)?$'; then
    LAT=$(echo ${MY_LAT_LON} | cut -d "," -f1)
    LON=$(echo ${MY_LAT_LON} | cut -d "," -f2)
    ZOOM=10

    sed -i "s/CenterLat=[^;]*;/CenterLat=${LAT};/g" ${DUMP1090_MAP_HTML}
    sed -i "s/CenterLon=[^;]*;/CenterLon=${LON};/g" ${DUMP1090_MAP_HTML}
    sed -i "s/setView(\[.*\], *[0-9]*);/setView([${LAT}, ${LON}], ${ZOOM});/" ${DUMP1090_MAP_HTML}

    et-log "Updated map center with your current location."
  fi
fi

CMD="dump1090 --net --net-http-port 1090"
et-log "Starting dump1090 in ${DUMP1090_CONF_DIR} with: ${CMD}"

${CMD} 

if [[ $? -ne 0 ]]; then
  et-log "Error starting dump1090."
fi

cd ${CWD_DIR}