#!/usr/bin/env bash
# Hammer a device with blind stop-monitoring sessions as fast as possible.
# Single HTTP call kicks off the burst inside SFM (no per-attempt HTTP
# overhead).  Default: 10 seconds, ~500 ms per attempt = ~20 attempts/sec.
#
# Usage:
#   ./spam_stop.sh <host> [tcp_port] [duration_s]
#
# Examples:
#   ./spam_stop.sh 166.246.130.1                  # 10s burst
#   ./spam_stop.sh 166.246.130.1 9034 30          # 30s burst
#   DURATION=60 CONNECT_TIMEOUT=0.2 ./spam_stop.sh 166.246.130.1
#
# Env:
#   SFM_BASE_URL     Default: http://localhost:8200 (SFM direct).
#                    Set to http://localhost:8001/api/sfm to route through
#                    Terra-View's proxy — but note the proxy has a 60s
#                    timeout, so long bursts need direct mode.
#   DURATION         Default: 10 (seconds; arg 3 overrides)
#   CONNECT_TIMEOUT  Default: 0.5 (seconds)
#   REPEAT           Default: 3   (stop frames per TCP session)

set -u

host="${1:-}"
tcp_port="${2:-9034}"
duration="${3:-${DURATION:-10}}"

if [[ -z "$host" ]]; then
  echo "usage: $0 <host> [tcp_port] [duration_s]" >&2
  exit 2
fi

base="${SFM_BASE_URL:-http://localhost:8200}"
connect_timeout="${CONNECT_TIMEOUT:-0.5}"
repeat="${REPEAT:-3}"

url="${base}/device/stop_monitoring_spam?host=${host}&tcp_port=${tcp_port}&duration_s=${duration}&connect_timeout=${connect_timeout}&repeat=${repeat}"

echo "spam_stop: target ${host}:${tcp_port}  duration=${duration}s  connect_timeout=${connect_timeout}s  repeat=${repeat}"
echo "spam_stop: POST ${url}"
echo

# Give curl enough slack to wait out the duration plus a buffer
max_time=$(awk -v d="$duration" 'BEGIN { printf "%d", d + 10 }')

curl -sS --max-time "$max_time" -X POST "$url"
echo