#!/usr/bin/env bash
# Regenerate every file under docs/output/. Nothing to install beyond a JDK: every test starts an
# embedded Tomcat on a random port and talks to it over a real socket.
set -eu
cd "$(dirname "$0")/.."
LOG=/tmp/sse-websocket-test.log

mvn -B test > "$LOG" 2>&1

# The buffer sweep: the same binary search at three container buffer sizes, so the ceiling can be
# shown as a function of the setting rather than as one number.
: > /tmp/sse-buffer-sweep.log
for b in 16384 32768 65536; do
  mvn -B test -Dtest=StompSizeLimitTunedBufferTest -Dwsbuf="$b" 2>&1 \
    | grep -E '^=== container buffer|^largest body|^smallest body' >> /tmp/sse-buffer-sweep.log
done

sed -n '/=== GET \/sse\/raw/,/^| 0$/p'  "$LOG" > docs/output/sse-wire-format.txt
sed -n '/=== SseEmitter.event()/,/=== String payload, APPLICATION_JSON/p' "$LOG" \
  > docs/output/sse-payload-conversion.txt

{
  sed -n '/=== GET \/sse\/silent/,/registry.timedOut/p' "$LOG"
  echo
  sed -n '/=== client closed the socket/,/appeared to succeed/p' "$LOG"
} > docs/output/sse-lifecycle.txt

sed -n '/=== server.tomcat.threads.max=10/,/clients that read it/p' "$LOG" \
  > docs/output/sse-concurrency.txt

grep -E '^=== spring.mvc.async|^\{"spring.mvc.async' "$LOG" > docs/output/async-timeout.txt

{
  sed -n '/=== SEND \/app\/chat.send/,/^| DISCONNECT/p' "$LOG"; echo
  sed -n '/=== @MessageMapping/,/^subscribed to/p' "$LOG"; echo
  sed -n '/=== SEND straight to/,/did NOT happen/p' "$LOG"; echo
  sed -n '/^alice.getSessionId/,/^bob   received/p' "$LOG"
} > docs/output/stomp-routing.txt

{
  echo "The limit that fires is the servlet container's WebSocket buffer, not Spring's"
  echo "messageSizeLimit. Body length below is the JSON string field; the STOMP frame carries"
  echo "about 90 bytes of headers on top."
  echo
  sed -n '/=== container buffer: Tomcat default/,/smallest body rejected/p' "$LOG"
  echo
  cat /tmp/sse-buffer-sweep.log
  echo
  sed -n '/=== bigframes profile/,/^200 KB body/p' "$LOG" \
    | grep -vE '^\s+at |^2026-|^$|Initializing|Completed initialization'
  echo
  echo "Spring's own limit, once the container is out of the way:"
  grep -m1 -A1 'Failed to parse TextMessage' "$LOG" | sed 's/^\[[^]]*\] //'
  grep -m1 'STOMP buffer size limit' "$LOG"
  echo
  grep -oE '"ws.container.defaultMaxTextMessageBufferSize":[0-9]+' "$LOG" | sort -u
} > docs/output/websocket-size-limits.txt

sed -n '/=== GET \/ws handshake/,/Origin: https:\/\/evil/p' "$LOG" > docs/output/handshake-origin.txt

grep -E 'Tests run:.*in com\.ankurm' "$LOG" | sed 's/^\[INFO\] //' > docs/output/tests.txt

echo "regenerated:"; ls -1 docs/output/