#!/usr/bin/env bash
# Regenerate every file under docs/output/. Needs a JDK and nothing else: protoc and the gRPC
# codegen plugin resolve as Maven artifacts, and all three servers start inside the test JVM.
#
# The benchmark numbers are NOT deterministic. They are re-measured on every run and the ratios
# between the three protocols are what the documentation quotes.
set -eu
cd "$(dirname "$0")/.."
LOG=/tmp/protocol-comparison-test.log

# Everything, for the test count and the non-timing transcripts.
MAVEN_OPTS=${MAVEN_OPTS:--Xmx900m} mvn -B test > "$LOG" 2>&1

# The two timing benchmarks are then re-run ALONE. This is not tidiness: the back-pressure and
# isReady tests leave unbounded producers spinning, and on a two-core box that halves every
# throughput number measured after them. Benchmarks share a JVM with nothing.
BENCH=/tmp/protocol-comparison-bench.log
MAVEN_OPTS=${MAVEN_OPTS:--Xmx900m} mvn -B test \
  -Dtest=RequestResponseBenchmarkTest,StreamThroughputBenchmarkTest > "$BENCH" 2>&1

# Interleaved log lines from other contexts have to come out, or the transcripts are unreadable.
clean() { grep -vE '^2026-|^\s*$|^WARNING|^[[:space:]]+at |^Caused by|^java\.|^org\.|Initializing|Completed initialization'; }

sed -n '/=== one Quote, five fields/,/^JSON is /p'        "$LOG" | clean > docs/output/payload-sizes.txt
sed -n '/=== request\/response/,/^WebSocket  /p'       "$BENCH" | clean > docs/output/request-response.txt
sed -n '/=== server streaming, 50000/,/^WebSocket  /p' "$BENCH" | clean > docs/output/stream-throughput.txt
{ grep -m1 '=== unbounded stream' "$LOG"; grep -m1 '^protocol ' "$LOG"
  grep -m1 '^RSocket  *[0-9]' "$LOG"; grep -m1 '^gRPC  *[0-9]' "$LOG"
  grep -m1 '^WebSocket  *[0-9]' "$LOG"
  sed -n '/^RSocket is flat/,/JIT-compiled/p' "$LOG"; } > docs/output/backpressure.txt
{ grep -m1 '=== gRPC server streaming' "$LOG"; grep -m1 '^handler ' "$LOG"
  grep -m1 '^plain onNext loop' "$LOG"; grep -m1 '^isReady() checked' "$LOG"; } \
  > docs/output/grpc-isready.txt

sed -n '/=== Boot-configured RSocketStrategies/,/^bare RSocketStrategies/p' "$LOG" | clean \
  > docs/output/rsocket-codecs.txt

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

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