#!/bin/bash
#
# Author  : Gaston Gonzalez
# Date    : 4 November 2024
# Updated : 4 February 2025
# Purpose : Wrapper script for starting YAAC with PnP support
#
# Preconditions:
# 1. Supported radio and audio interface are connected and properly detected
# 2. Appropriate modem is started: Dire Wolf (et-direwolf) or ARDOP (et-ardop). 
#
# Postconditions:
# 1. Callsign, Winlink  password, and grid are updated are updated 
# 2. pat http is started

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

PAT_CONF_FILE=${HOME}/.config/pat/config.json
PAT_CONF_FILE_TEMPLATE=/etc/skel/.config/pat/config.json

usage() {
  echo "usage: $(basename $0) <command>"
  echo "  <command>"
  echo "    start-ardop         - Start Pat Winlink in ardop mode"
  echo "    start-packet        - Start Pat Winlink in packet mode"
  echo "    start-native-packet - Start Pat Winlink in native AX.25 packet mode"
  echo "    start-vara-fm       - Start Pat Winlink in VARA FM mode"
  echo "    start-vara-hf       - Start Pat Winlink in VARA HF mode"
}

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

notify_user() {
  notify-send \
   -t 10000 \
   --app-name="EmComm Tools" \
   "$1"
}

start_ardop() {

  ps -ef | grep "[a]rdopcf"
  if [ $? -ne 0 ]; then
    et-log "Can't start Pat in ARDOP mode. ARDOP not running. Run: et-ardop"
    notify_user "ARDOP not running. Run: et-ardop"
    exit 1
  fi

  update_config ardop

  CMD="pat http"
  et-log "Starting Pat with: ${CMD}"

  ${CMD}
}

start_packet() {
  
  RIGCTLD_OUT=$(ps -ef | grep "[d]irewolf")
  if [ $? -ne 0 ]; then
    et-log "Can't start Pat in packet mode. Dire Wolf not running. Run: et-direwolf simple-packet"
    notify_user "Dire Wolf not running. Run: et-direwolf simple-packet"
    exit 1
  fi
  
  update_config packet

  CMD="pat http"
  et-log "Starting Pat with: ${CMD}"

  ${CMD}
}

# Only the BTECH UV PRO is supported in this mode
start_native_packet() {
 
  BLUETOOTH_TNC_CHECK=$(ps -ef | grep "[r]fcomm connect")
  if [[ $? -ne 0 ]]; then
    echo -e "${RED}Can't start Pat in native AX.25 packet mode."
    echo -e "If you have a UV Pro, first run: ${YELLOW}et-uv-pro connect${NC}"
    exit 1
  fi

  update_config native-packet

  CMD="pat http"
  et-log "Starting Pat with: ${CMD}"

  ${CMD}
}

start_vara_fm() {
 
  update_config vara-fm

  CMD="pat http"
  et-log "Starting Pat with: ${CMD}"

  ${CMD}
}

start_vara_hf() {
 
  update_config vara-hf

  CMD="pat http"
  et-log "Starting Pat with: ${CMD}"

  ${CMD}
}

update_config () {

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

  CALLSIGN=$(cat ${ET_USER_CONFIG} | jq -r .callsign)
  GRID=$(cat ${ET_USER_CONFIG} | jq -r .grid)
  WINLINK_PASSWD=$(cat ${ET_USER_CONFIG} | jq -r .winlinkPasswd)

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

  case $1 in
    ardop)
      PAT_CONF_FILE_TEMPLATE=/opt/emcomm-tools/conf/template.d/winlink/config.ardop.json
      ;;
    packet)
      PAT_CONF_FILE_TEMPLATE=/opt/emcomm-tools/conf/template.d/winlink/config.ax25-agw.json
      ;;
    native-packet)
      PAT_CONF_FILE_TEMPLATE=/opt/emcomm-tools/conf/template.d/winlink/config.ax25-native.json
      ;;
    vara-fm)
      PAT_CONF_FILE_TEMPLATE=/opt/emcomm-tools/conf/template.d/winlink/config.vara-fm.json
      ;;
    vara-hf)
      PAT_CONF_FILE_TEMPLATE=/opt/emcomm-tools/conf/template.d/winlink/config.vara-hf.json
      ;;
  esac

  et-log "Updating Pat configuration file: ${PAT_CONF_FILE}..."
  cp -v ${PAT_CONF_FILE_TEMPLATE} ${PAT_CONF_FILE}

  sed -i "s|{{ET_CALLSIGN}}|${CALLSIGN}|g" ${PAT_CONF_FILE}
  sed -i "s|{{ET_WINLINK_PASSWD}}|${WINLINK_PASSWD}|g" ${PAT_CONF_FILE}
  sed -i "s|{{ET_GRID}}|${GRID}|g" ${PAT_CONF_FILE}
}

case $1 in
  start-ardop)
    start_ardop
    ;;
  start-packet)
    start_packet
    ;;
  start-native-packet)
    start_native_packet
    ;;
  start-vara-fm)
    start_vara_fm
    ;;
  start-vara-hf)
    start_vara_hf
    ;;
  *)
    echo "Invalid command."
    usage
    exit 1
  ;;
esac