#!/usr/bin/env bash
#
#
# The contents of this file are subject to the terms of the Common Development and
# Distribution License (the License). You may not use this file except in compliance with the
# License.
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# You can obtain a copy of the License at legal/CDDLv1.0.txt. See the License for the
# specific language governing permission and limitations under the License.
#
# When distributing Covered Software, include this CDDL Header Notice in each file and include
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# Copyright 2026 3A Systems, LLC.

# A self-test of the disturbance restart-ds of the replication convergence run (#1208), with no
# topology: what disturb and settle call, in which order, and what disturb writes to
# disturbances.txt. The window of the errors logs opens before the restart and closes 10 s after
# the server serves again, and the restart ends when the server served, not after the grace. A
# restart-ds row shows neither, unless a handshake record lands where the order moved. docker,
# wait_until, window_open, window_close, date and sleep are stubs that record their calls, and
# the clock moves in the stubs alone: the restart takes 5 s, the wait for the server 30 s.
#
# Usage: selftest-disturb-restart-ds.sh

set -eE -o pipefail

HERE=$(cd "$(dirname "$0")" && pwd)
DS_NODES="d0 d1" DISTURB_TIMEOUT=900
OUT=$(mktemp -d)
trap 'rm -rf "$OUT"' EXIT
. "$HERE/disturb-restart-ds.sh"

now=100 calls=
date() { echo $now; }
sleep() { calls="$calls sleep $1"; now=$((now + $1)); }
docker() { calls="$calls docker $*"; now=$((now + 5)); }
wait_until() { calls="$calls wait_until $*"; now=$((now + 30)); }
window_open() { calls="$calls window_open"; }
window_close() { calls="$calls window_close"; }

failed=0
check() { # <what> <got> <want>
  [ "$2" = "$3" ] || { echo "::error::$1:$2, not$3"; failed=$((failed + 1)); }
}

disturb >/dev/null
check "disturb called" "$calls" \
  " window_open docker restart -t 120 d1 wait_until 900 d1 serves again started_since d1 100 sleep 10 window_close"
check "disturbances.txt holds" " $(cat "$OUT/disturbances.txt")" " 100000 135000 d1 restart"
calls=
settle
check "settle called" "$calls" " wait_until 900 the join of d1 ends bootstrap_ended d1"

echo "disturb-restart-ds: $((3 - failed)) checks passed, $failed failed"
[ "$failed" -eq 0 ]