#!/bin/bash

set -ex

mkdir -p $HOME/.bitcoin

if [ -f "$HOME/.bitcoin/bitcoin.conf" ];
then
  echo "Backing up bitcoin.conf"
  TMPEXT=$(date +%Y.%m.%d.%H.%M.%S)
  mv $HOME/.bitcoin/bitcoin.conf $HOME/.bitcoin/bitcoin.conf.bak.$TMPEXT
fi

echo "Creating bitcoin.conf"

# Seed a random password for JSON RPC server
cat <<EOF > $HOME/.bitcoin/bitcoin.conf
#
#Do not modify this file as it is autogenerated. 
#You can either (a) Modify this template "btc_init" in build or
# (b) You can pass a variable name as env variable during container launch
# The variable names are printed to right of each item
#

# network
mainnet=${MAINNET:-1}             # MAINNET
testnet=${TESTNET:-0}             # TESTNET
regtest=${REGTEST:-0}             # REGTEST

# server
server=${SERVER:-1}               # SERVER
listen=${LISTEN:-1}               # LISTEN
listenonion=${LISTENONION:-0}     # LISTENONION
daemon=${DAEMON:-0}               # DAEMON
txindex=${TXINDEX=-1}             # TXINDEX
prune=${PRUNE=-0}                 # PRUNE
disablewallet=${DISABLEWALLET:-1} # DISABLEWALLET
printtoconsole=${PRINTTOCONSOLE:-1} # PRINTCONSOLE

# rpc
rpcuser=${RPCUSER:-bitcoinrpc}    # RPCUSER
rpcpassword=${RPCPASSWORD:-`dd if=/dev/urandom bs=33 count=1 2>/dev/null | base64`} # RPCPASSWORD
#rpcconnect=${RPCCONNECT:-127.0.0.1} # RPCCONNECT
#rpcport=${RPCPORT:-8332}         # RPCPORT
#rpcauth=${RPCAUTH:-xxx}          # RPCPORT

# performance
dbcache=${DBCACHE=-2000}          # DBCACHE
maxconnections=${MAXCONNECTIONS=-40} # MAXCONNECTIONS
maxuploadtarget=${MAXUPLOADTARGET=-5000} # MAXUPLOADTARGET

# tor
#proxy=${PROXY:-127.0.0.1:9050}   # PROXY
#seednode=${SEEDNODE1:-nkf5e6b7pl4jfd4a.onion} # SEEDNODE1
#seednode=${SEEDNODE2:-xqzfakpeuvrobvpj.onion} # SEEDNODE2
#seednode=${SEEDNODE3:-tsyvzsqwa2kkf6b2.onion} # SEEDNODE3

# validation
reindex-chainstate=${REINDEXCHAINSTATE=-0} # REINDEXCHAINSTATE

EOF

fi

cat $HOME/.bitcoin/bitcoin.conf

echo "Initialization completed successfully"