#!/bin/sh

ACTION=${1}
shift 1

get_image() {
  IMAGE_NAME=$(uci get btcpayserver.@btcpayserver[0].image_name 2>/dev/null)
}

do_install_detail() {
  config=$(uci get btcpayserver.@btcpayserver[0].config_path 2>/dev/null)
  port=$(uci get btcpayserver.@btcpayserver[0].port 2>/dev/null)
  IMAGE_NAME=$(uci get btcpayserver.@btcpayserver[0].image_name 2>/dev/null)

  GEN_PASS=$(head -c14 /dev/urandom | tr -dc A-Za-z0-9)
  GEN_PASS2=$(head -c14 /dev/urandom | tr -dc A-Za-z0-9)

  LAN_IP=$(uci get network.lan.ipaddr)
  LAN_IP="${LAN_IP%/*}"

  [ -z "$config" ] && { echo "config path is empty!"; exit 1; }
  [ -z "$port" ] && port=8888
  [ -z "$IMAGE_NAME" ] && IMAGE_NAME=clightning
}

setup_btcpayserver() {
  git clone https://github.com/btcpayserver/btcpayserver-docker /opt/docker2/compose/btcpayserver/btcpayserver-docker/

  touch /opt/docker2/compose/btcpayserver/btcpayserver-docker/go.sh
  chmod +x /opt/docker2/compose/btcpayserver/btcpayserver-docker/go.sh
  cat > /opt/docker2/compose/btcpayserver/btcpayserver-docker/go.sh <<EOF
#!/bin/bash

export BTCPAY_HOST="${LAN_IP}"
export NBITCOIN_NETWORK="${config}"
export BTCPAYGEN_CRYPTO1="btc"
export BTCPAYGEN_ADDITIONAL_FRAGMENTS="opt-save-storage-s"
export BTCPAYGEN_REVERSEPROXY="nginx"
export BTCPAYGEN_LIGHTNING="${IMAGE_NAME}"
export BTCPAY_ENABLE_SSH=true
export NOREVERSEPROXY_HTTP_PORT="${port}"
export BTCPAY_PROTOCOL="http"
export BTCPAYGEN_REVERSEPROXY="none"

bash /opt/docker2/compose/btcpayserver/btcpayserver-docker/btcpay-setup.sh -i

EOF
}

if [ "$(id -u)" -ne 0 ]; then
  echo "This script must be run as root."
  exit 1
fi

setup_btcpayserver
chmod +x /opt/docker2/compose/btcpayserver/btcpayserver-docker/go.sh
echo "Please open a terminal window and login via SSH to $LAN_IP"
echo "Copy paste the commands to finish the BTCpay server Install"
echo ".................Enter commands below......................"
echo "cd /opt/docker2/compose/btcpayserver/btcpayserver-docker"
echo ". ./go.sh -i"
echo "..........................................................."

uci add shortcutmenu lists
uci set shortcutmenu.@lists[-1].webname="$IMAGE_NAME"
uci set shortcutmenu.@lists[-1].weburl="$LAN_IP:$port"
uci set shortcutmenu.@lists[-1].webpath="/"
uci commit shortcutmenu

usage() {
  echo "usage: $0 sub-command"
  echo "  where sub-command is one of:"
  echo "  install                  Install btcpayserver"
  echo "  upgrade                  Upgrade btcpayserver"
  echo "  rm/start/stop/restart    Remove/Start/Stop/Restart btcpayserver"
  echo "  status                   btcpayserver status"
  echo "  port                     btcpayserver port"
}

case "${ACTION}" in
  "install")
    get_image
    do_install_detail
    ;;
  "upgrade")
    get_image
    do_install_detail
    ;;
  "rm")
    docker-compose -f /opt/docker2/compose/btcpayserver/btcpayserver-docker/$BTCPAY_DOCKER_COMPOSE down --volumes
    ;;
  "start"|"stop"|"restart")
    docker "${ACTION}" btcpayserver
    ;;
  "status")
    docker ps --all -f 'name=btcpayserver' --format '{{.State}}'
    ;;
  "port")
    docker ps --all -f 'name=btcpayserver' --format '{{.Ports}}' | grep -om1 '0.0.0.0:[0-9]*' | sed 's/0.0.0.0://'
    ;;
  *)
    usage
    exit 1
    ;;
esac