#!/bin/sh
#
# Send notification in response to a DATA error.
#
# Only one notification per ZED_NOTIFY_INTERVAL_SECS will be sent for a given
# class/pool combination.  This protects against spamming the recipient
# should multiple events occur together in time for the same pool.
#
# Exit codes:
#   0: notification sent
#   1: notification failed
#   2: notification not configured
#   3: notification suppressed
#   9: internal error

[ -f "${ZED_ZEDLET_DIR}/zed.rc" ] && . "${ZED_ZEDLET_DIR}/zed.rc"
. "${ZED_ZEDLET_DIR}/zed-functions.sh"

[ -n "${ZEVENT_POOL}" ] || exit 9
[ -n "${ZEVENT_SUBCLASS}" ] || exit 9

if [ "${ZEVENT_SUBCLASS}" != "data" ]; then \
    zed_log_err "unsupported event class \"${ZEVENT_SUBCLASS}\""
    exit 9
fi

zed_rate_limit "${ZEVENT_POOL};${ZEVENT_SUBCLASS};notify" || exit 3

umask 077
note_subject="ZFS ${ZEVENT_SUBCLASS} error for ${ZEVENT_POOL} on $(hostname)"
note_pathname="${TMPDIR:="/tmp"}/$(basename -- "$0").${ZEVENT_EID}.$$"
{
    echo "ZFS has detected a ${ZEVENT_SUBCLASS} error:"
    echo
    echo "   eid: ${ZEVENT_EID}"
    echo " class: ${ZEVENT_SUBCLASS}"
    echo "  host: $(hostname)"
    echo "  time: ${ZEVENT_TIME_STRING}"
    echo "  pool: ${ZEVENT_POOL}"

} > "${note_pathname}"

zed_notify "${note_subject}" "${note_pathname}"; rv=$?
rm -f "${note_pathname}"
exit "${rv}"