#!/bin/bash
#
# Author  : Gaston Gonzalez
# Date    : 3 December 2024
# Purpose : Wrapper script for starting Paracon with PnP support
#
# Preconditions:
# 1. Supported radio and audio interface are connected and properly detected
# 2. Dire Wolf is started
#
# Postconditions:
# 1. Callsign and AGWPE host updated in Paracon
# 2. Paracon is started

PARACON_CONF_DIR=${HOME}/.local/share/emcomm-tools/bbs-client
PARACON_CONF_FILE=${PARACON_CONF_DIR}/paracon.cfg

usage() {
  echo "usage: $(basename $0) <command>"
  echo "  <command>"
  echo "    start           - Start Paracon"
  echo "    update-config   - Update configuration for selected mode"
}

if [ $# -ne 1 ]; then
  usage
  exit 1
fi

notify_user() {
  notify-send \
   -t 5000 \
   --app-name="EmComm Tools" \
   "$1"
}

start() {
  update-config
  
  if [ $? -eq 0 ]; then

    RIGCTLD_OUT=$(ps -ef | grep [d]irewolf)
    if [ $? -ne 0 ]; then
      et-log "Can't start Paracon. Dire Wolf not running."
      notify_user "Can't start Paracon. Dire Wolf not running."
      exit 1
    fi

    CWD_DIR=$(pwd)

    cd ${PARACON_CONF_DIR}
    CMD="paracon"
    et-log "Starting Paracon in ${PARACON_CONF_DIR} with: ${CMD}"

    ${CMD}

    cd ${CWD_DIR}
   
  else 
    et-log "Error updating configuration. Can't start Paracon"
    exit 1
  fi
}

update-config () {

    [ -z "$ET_USER_CONFIG" ] && ET_USER_CONFIG="${HOME}/.config/emcomm-tools/user.json"

    CALLSIGN=$(cat ${ET_USER_CONFIG} | jq -r .callsign)

    if [ "${CALLSIGN}" = "N0CALL" ]; then
      notify_user "Can't start Paracon. No callsign set. Run: et-user."
      exit 1
    fi

    et-log "Updating Paracon configuration file: ${PARACON_CONF_FILE}..."
    sed -i "s|^host.*|host = localhost|" ${PARACON_CONF_FILE}
    sed -i "s|^callsign.*|callsign = ${CALLSIGN}|" ${PARACON_CONF_FILE}
}

case $1 in
  start)
    start
    ;;
  update-config)
    update-config
    ;;
  *)
    echo "Invalid command."
    usage
    exit 1
  ;;
esac