#!/bin/bash

# command info
if [ "$1" = "-h" ] || [ "$1" = "-help" ] || [ $# -eq 0 ]; then
 echo "tool to export macaroons & tls.cert"
 echo "lnd.export.sh [hexstring|scp|http]"
 exit 1
fi

# load data from config
source /mnt/hdd/raspiblitz.conf 2>/dev/null

# 1. parameter -> the type of export
exportType=$1

########################
# HEXSTRING
########################
if [ ${exportType} = "hexstring" ]; then

  clear
  echo "###### HEXSTRING EXPORT ######"
  echo ""
  echo "admin.macaroon:"
  sudo xxd -ps -u -c 1000 /mnt/hdd/lnd/data/chain/${network}/${chain}net/admin.macaroon
  echo ""
  echo "readonly.macaroon:"
  sudo xxd -ps -u -c 1000 /mnt/hdd/lnd/data/chain/${network}/${chain}net/readonly.macaroon
  echo ""
  echo "tls.cert:"
  sudo xxd -ps -u -c 1000 /mnt/hdd/lnd/tls.cert
  echo ""

###########################
# SHH / SCP File Download
###########################
elif [ ${exportType} = "scp" ]; then

  local_ip=$(ip addr | grep 'state UP' -A2 | tail -n1 | awk '{print $2}' | cut -f1 -d'/')
  clear
  echo "###### DOWNLOAD BY SCP ######"
  echo "Copy, past and execute these commands in your client terminal to download the files."
  echo "The password needed during download is your Password A."
  echo ""
  echo "admin.macaroon:"
  echo "scp bitcoin@{$local_ip}:/home/bitcoin/.lnd/data/chain/${network}/${chain}net/admin.macaroon ./"
  echo ""
  echo "readonly.macaroon:"
  echo "scp bitcoin@{$local_ip}:/home/bitcoin/.lnd/data/chain/${network}/${chain}net/readonly.macaroon ./"
  echo ""
  echo "tls.cert:"
  echo "scp bitcoin@{$local_ip}:/home/bitcoin/.lnd/tls.cert ./"
  echo ""

###########################
# HTTP File Download
###########################
elif [ ${exportType} = "http" ]; then

  local_ip=$(ip addr | grep 'state UP' -A2 | tail -n1 | awk '{print $2}' | cut -f1 -d'/')
  clear
  echo "###### DOWNLOAD BY HTTP ######"
  echo ""
  echo "Open in your browser --> http://${local_ip}:51413"
  echo "You need to be on the same local network."
  echo "In browser click on files or use 'save as' from context menu to download."
  echo ""
  echo "Temp HTTP Server is running - use CTRL+C to stop when you are done"
  cd 
  randomNumber=$(shuf -i 100000000-900000000 -n 1)
  mkdir ${randomNumber}
  sudo cp /home/bitcoin/.lnd/data/chain/${network}/${chain}net/admin.macaroon ./${randomNumber}/admin.macaroon
  sudo cp /home/bitcoin/.lnd/data/chain/${network}/${chain}net/readonly.macaroon ./${randomNumber}/readonly.macaroon
  sudo cp /home/bitcoin/.lnd/tls.cert ./${randomNumber}/tls.cert
  cd ${randomNumber}
  python -m SimpleHTTPServer 51413
  cd ..
  sudo rm -r ${randomNumber}
  echo "OK - temp HTTP server is stopped."

else
  echo "FAIL: unknown '${exportType}' -run-> ./lnd.export.sh -h"
fi