#!/bin/bash
_temp="./download/dialog.$$"
_error="./.error.out"

echo "please wait ..."

# load raspiblitz config data (with backup from old config)
source /mnt/hdd/raspiblitz.conf 2>/dev/null
if [ ${#network} -eq 0 ]; then network=`cat .network`; fi
if [ ${#chain} -eq 0 ]; then
  chain=$(${network}-cli -datadir=/home/bitcoin/.${network} getblockchaininfo | jq -r '.chain')
fi

# check if user has money in lightning channels - info about close all
openChannels=$(lncli --chain=${network} --network=${chain}net listchannels 2>/dev/null | jq '.[] | length')
if [ ${#openChannels} -eq 0 ]; then
  clear
  echo "*** IMPORTANT **********************************"
  echo "It looks like LND is not responding."
  echo "Still starting up, is locked or is not running?"
  echo "Try later, try reboot or check ./XXdebugLogs.sh"
  echo "************************************************"
  exit 1
fi
if [ ${openChannels} -gt 0 ]; then
   dialog --title 'Info' --msgbox 'You still have funds in open Lightning Channels.\nUse CLOSEALL first if you want to cashout all funds.\nNOTICE: Just confirmed on-chain funds can be moved.' 7 58
   echo "please wait ..."
fi

# check if money is waiting to get confirmed
unconfirmed=$(lncli --chain=${network} --network=${chain}net walletbalance | grep '"unconfirmed_balance"' | cut -d '"' -f4)
if [ ${unconfirmed} -gt 0 ]; then
   dialog --title 'Info' --msgbox "Still waiting confirmation for ${unconfirmed} sat.\nNOTICE: Just confirmed on-chain funds can be moved." 6 58
   echo "please wait ..."
fi

# get available amount in on-chain wallet
maxAmount=$(lncli --chain=${network} --network=${chain}net walletbalance | grep '"confirmed_balance"' | cut -d '"' -f4)
if [ ${maxAmount} -eq 0 ]; then
   dialog --title 'Info' --msgbox "You have 0 moveable funds available.\nNOTICE: Just confirmed on-chain funds can be moved." 6 58
   exit 1
fi

# let user enter the address
l1="Enter on-chain address to send confirmed funds to:"
l2="You will send: ${maxAmount} sat"
l3="Maximal fee: 20000 sat (wil be subtracted)"
dialog --title "Where to send funds?" \
--inputbox "$l1\n$l2\n$l3" 9 75 2>$_temp
if test $? -eq 0
then
   echo "ok pressed"
else
   echo "cancel pressed"
   exit 1
fi
address=$(cat $_temp | xargs)
shred $_temp
if [ ${#address} -eq 0 ]; then
  echo "FAIL - not a valid address (${address})"
  exit 1
fi

# TODO: check address is valid for network and chain

clear
echo "******************************"
echo "Send on-chain Funds"
echo "******************************"
tryAgain=1
count=1
while [ ${tryAgain} -eq 1 ]
  do
    sleep 1
    fee=$(($count * 1000))
    amount=$(($maxAmount - $fee))
    echo ""
    echo "TRY #${count} ---> with max fee ${fee} sat:"

        # execute command
    command="lncli --chain=${network} --network=${chain}net sendcoins --addr ${address} --amt ${amount} --conf_target 3"
    echo "$command"
    result=$($command 2>$_error)
    error=`cat ${_error}`
    #error="sim error: insufficient funds available to construct transaction"
    #result=""
    
    if [ ${#result} -eq 0 ]; then
      # fail - retry on 'insufficient funds available to construct transaction'
      echo "FAIL: $error"
      tryAgain=$(echo "${error}" | grep -c 'insufficient funds available to construct transaction')
      if [ ${tryAgain} -eq 0 ]; then
        echo ""
        echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
        echo "FINAL FAIL --> Was not able to send transaction (see error above)"
        echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
      fi
    else
      # success
      echo "$result"
      echo ""
      echo "********************************************************************"
      echo "OK --> send ${amount} sat to address + ${fee} sat fees max"
      echo "********************************************************************"
      tryAgain=0
    fi
    
    # abort aftzer 20 tries
    count=$(($count + 1))
    if [ ${count} -gt 20 ]; then
      echo ""
      echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
      echo "FINAL FAIL --> Was not able to send transaction with max 20000 sat"
      echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
      tryAgain=0
    fi

  done
exit 1
echo ""