#!/bin/bash
#
# Author  : Gaston Gonzalez
# Date    : 25 March 2025
# Purpose : Wrapper script for starting the BBS with PnP support
#
# Preconditions:
# 1. Supported radio and audio interface are connected and properly detected
#
# Postconditions:
# 1. Dire Wolf is started in 1200 baud packet mode
# 2. LinBPQ is started
source /opt/emcomm-tools/bin/et-common

BBS_CONF_DIR=${HOME}/.local/share/emcomm-tools/bbs-server
BBS_CONF_FILE=${BBS_CONF_DIR}/bpq32.cfg
BBS_CONF_FILE_TEMPLATE=/opt/emcomm-tools/conf/template.d/bbs/bpq32.simple.cfg

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

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

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

    PS_OUT=$(ps -ef | grep [d]irewolf)
    if [[ $? -ne 0 ]]; then
      echo -e "${RED}Can't start BBS. Dire Wolf not running.${NC}"
      exit 1
    fi

    CWD_DIR=$(pwd)

    cd ${BBS_CONF_DIR}
    CMD="linbpq"
    et-log "Starting LinBPQ in ${BBS_CONF_DIR} with: ${CMD}"

    ${CMD}

    cd ${CWD_DIR}

  else 
    et-log "Error updating configuration. Can't start BBS"
    exit 1
  fi
}

update-config () {

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

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

    if [[ "${CALLSIGN}" = "N0CALL" ]]; then
      echo -e "${RED}Can't start BBS. No callsign set. Run: ${WHITE}et-user${NC}."
      exit 1
    fi

    echo "Updating BBS configuration: ${BBS_CONF_FILE}..."
    cp -v ${BBS_CONF_FILE_TEMPLATE} ${BBS_CONF_FILE}
    sed -i "s|{{ET_CALLSIGN}}|${CALLSIGN}|g" ${BBS_CONF_FILE}
    sed -i "s|{{ET_WINLINK_PASSWD}}|${WINLINK_PASSWD}|g" ${BBS_CONF_FILE}
    sed -i "s|{{ET_GRID}}|${GRID}|g" ${BBS_CONF_FILE}
}

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