#!/bin/bash
#
# Author  : Gaston Gonzalez
# Date    : 17 December 2024
# Purpose : Wrapper script for starting JS8Call with PnP support
#
# Preconditions
# 1. Supported radio and audio interface are connected and properly detected
# 2. The BBS Client (QtTermTCP) mode is started via et-mode.
#
# Postconditions
# 1. Stop all running EmComm Tools modes
# 2. QtTermTCP audio settings updated
# 3. QtTermTCP started

CONF_DIR="${HOME}/.config"
CONF_FILE="${CONF_DIR}/QtTermTCP.ini"

usage() {
  echo "usage: $(basename $0) <command>"
  echo "  start           - Update config and start JS8Call"
  echo "  update-config   - Update config"
}

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

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

start() {
  CWD_DIR=$(pwd)

  cd ${CONF_DIR}

  update-config && /usr/local/bin/QtTermTCP

  cd ${CWD_DIR}
}

update-config () {

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

    # Update configuration with current callsign and grid
    CALLSIGN=$(cat ${ET_USER_CONFIG} | jq -r .callsign)

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

    sed -i "s|^AGWTermCall.*|AGWTermCall=${CALLSIGN}|" ${CONF_FILE} 
    sed -i "s|^YAPPPath.*|YAPPPath=${HOME}/Downloads|" ${CONF_FILE} 

    et-log "Updated QtTermTCP configuration with user callsign '${CALLSIGN}'"

    # 1. Check if the symlink was created by the udev rules
    if [ -e /dev/et-audio ]; then

       # 2. Check that this device was properly tagged with the ET_AUDIO env variable with a udev rule
       APLAY_OUT=$(arecord -l | grep ET_AUDIO)
       if [ $? -eq 0 ]; then
         ## Configure ALSA settings for sound card
         /opt/emcomm-tools/bin/et-audio update-config
       else
         et-log "No ET_AUDIO device detected."
         notify_user "Can't start QtTermInfo. No ET_AUDIO device detected."
         exit 1
       fi
    else
      et-log "No ET_AUDIO device plugged in."
      notify_user "Can't start QtTermInfo. No supported audio device plugged in."
      exit 1
    fi

}

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