#!/sbin/openrc-run

# backward compatibility for existing gentoo layout 
#
if [ -d "/var/lib/bitcoin/.bitcoin" ]; then
	BITCOIND_DEFAULT_DATADIR="/var/lib/bitcoin/.bitcoin"
else
	BITCOIND_DEFAULT_DATADIR="/var/lib/bitcoind"
fi

BITCOIND_CONFIGFILE=${BITCOIND_CONFIGFILE:-/etc/bitcoin/bitcoin.conf}
BITCOIND_PIDDIR=${BITCOIND_PIDDIR:-/var/run/bitcoind}
BITCOIND_PIDFILE=${BITCOIND_PIDFILE:-${BITCOIND_PIDDIR}/bitcoind.pid}
BITCOIND_DATADIR=${BITCOIND_DATADIR:-${BITCOIND_DEFAULT_DATADIR}}
BITCOIND_USER=${BITCOIND_USER:-${BITCOIN_USER:-bitcoin}}
BITCOIND_GROUP=${BITCOIND_GROUP:-bitcoin}
BITCOIND_BIN=${BITCOIND_BIN:-/usr/bin/bitcoind}
BITCOIND_NICE=${BITCOIND_NICE:-${NICELEVEL:-0}}
BITCOIND_OPTS="${BITCOIND_OPTS:-${BITCOIN_OPTS}}"

name="Bitcoin Core Daemon"
description="Bitcoin cryptocurrency P2P network daemon"

command="/usr/bin/bitcoind"
command_args="-pid=\"${BITCOIND_PIDFILE}\" \
		-conf=\"${BITCOIND_CONFIGFILE}\" \
		-datadir=\"${BITCOIND_DATADIR}\" \
		-daemon \
		${BITCOIND_OPTS}"

required_files="${BITCOIND_CONFIGFILE}"
start_stop_daemon_args="-u ${BITCOIND_USER} \
			-N ${BITCOIND_NICE} -w 2000"
pidfile="${BITCOIND_PIDFILE}"

# The retry schedule to use when stopping the daemon. Could be either
# a timeout in seconds or multiple signal/timeout pairs (like
# "SIGKILL/180 SIGTERM/300")
retry="${BITCOIND_SIGTERM_TIMEOUT}"

depend() {
	need localmount net
}

# verify
# 1) that the datadir exists and is writable (or create it)
# 2) that a directory for the pid exists and is writable
# 3) ownership and permissions on the config file
start_pre() {
	checkpath \
	-d \
	--mode 0750 \
	--owner "${BITCOIND_USER}:${BITCOIND_GROUP}" \
	"${BITCOIND_DATADIR}"

	checkpath \
	-d \
	--mode 0755 \
	--owner "${BITCOIND_USER}:${BITCOIND_GROUP}" \
	"${BITCOIND_PIDDIR}"

	checkpath -f \
	-o "${BITCOIND_USER}:${BITCOIND_GROUP}" \
	-m 0660 \
	"${BITCOIND_CONFIGFILE}"

	checkconfig || return 1
}

checkconfig()
{
	if grep -qs '^rpcuser=' "${BITCOIND_CONFIGFILE}" && \
		! grep -qs '^rpcpassword=' "${BITCOIND_CONFIGFILE}" ; then
		eerror ""
		eerror "ERROR: You must set a secure rpcpassword to run bitcoind."
		eerror "The setting must appear in ${BITCOIND_CONFIGFILE}"
		eerror ""
		eerror "This password is security critical to securing wallets "
		eerror "and must not be the same as the rpcuser setting."
		eerror "You can generate a suitable random password using the following "
		eerror "command from the shell:"
		eerror ""
		eerror "bash -c 'tr -dc a-zA-Z0-9 < /dev/urandom | head -c32 && echo'"
		eerror ""
		eerror "It is recommended that you also set alertnotify so you are "
		eerror "notified of problems:"
		eerror ""
		eerror "ie: alertnotify=echo %%s | mail -s \"Bitcoin Alert\"" \
			"admin@foo.com"
		eerror ""
		return 1
	fi
}