#!/sbin/openrc-run

ZENDRITE=${SVCNAME#*.}
: ${ZENDRITE_CONFDIR:=${RC_PREFIX%/}/etc/zendrite}

if [ -n "${ZENDRITE}" ] && [ ${SVCNAME} != "zendrite" ]; then
    : ${ZENDRITE_CONFIG:=${ZENDRITE_CONFDIR}/${ZENDRITE}.yaml}
    : ${ZENDRITE_PIDFILE:=${RC_PREFIX%/}/run/zendrite.${ZENDRITE}.pid}
else
    : ${ZENDRITE_CONFIG:=${ZENDRITE_CONFDIR}/zendrite.yaml}
    : ${ZENDRITE_PIDFILE:=${RC_PREFIX%/}/run/zendrite.pid}
fi

if [ -n "${ZENDRITE_USER}" ]; then
    : # Do nothing, ZENDRITE_USER is set externally.
else
    ZENDRITE_USER='zendrite'
fi

if [ -n "${ZENDRITE_WORKING_DIRECTORY}" ]; then
    : # Do nothing, ZENDRITE_WORKING_DIRECTORY is set externally.
else
    ZENDRITE_WORKING_DIRECTORY='${RC_PREFIX%/}/var/lib/zendrite'
fi

# Where should supervise-daemon write zendrite's stdout to?
if [ -n "${ZENDRITE_STDOUT_FILE}" ]; then
    : # Do nothing, ZENDRITE_STDOUT_FILE is set externally.
else
    ZENDRITE_STDOUT_FILE="${RC_PREFIX%/}/var/log/zendrite/zendrite.stdout"
fi

# Where should supervise-daemon write zendrite's stderr to?
if [ -n "${ZENDRITE_STDERR_FILE}" ]; then
    : # Do nothing, ZENDRITE_STDERR_FILE is set externally.
else
    ZENDRITE_STDERR_FILE="${RC_PREFIX%/}/var/log/zendrite/zendrite.stderr"
fi

supervisor=supervise-daemon

command="${RC_PREFIX%/}/usr/bin/zendrite"
command_args="${ZENDRITE_OPTS} --config ${ZENDRITE_CONFIG}"
command_user="${ZENDRITE_USER}:${ZENDRITE_USER}"
output_log="${ZENDRITE_STDOUT_FILE}"
error_log="${ZENDRITE_STDERR_FILE}"
directory="${ZENDRITE_WORKING_DIRECTORY}"

# https://github.com/OpenRC/openrc/blob/master/service-script-guide.md#dont-restartreload-with-a-broken-config
checkconfig() {
    test -f "${ZENDRITE_CONFIG}" || {
        echo "\"${ZENDRITE_CONFIG}\" does not exist or is not a regular file." >&2
        return 1
    }
}

start_pre() {
    [ "$RC_CMD" != "restart" ] && {
        checkconfig || return $?
    }
    # Create the log and home directories  and make sure they are owned by the
    # service user so it can write into them.
    checkpath -d -o ${ZENDRITE_USER}:${ZENDRITE_USER} ${ZENDRITE_STDOUT_FILE%/*}
    checkpath -d -o ${ZENDRITE_USER}:${ZENDRITE_USER} ${ZENDRITE_WORKING_DIRECTORY}
}

stop_pre() {
    [ "$RC_CMD" = "restart" ] && {
        checkconfig || return $?
    }

    return 0
}