#!/usr/bin/env bash
# Regenerates every file in output/. Requires:
#   - JDK25_HOME pointing at a JDK 24+ install (this repo used Temurin 25.0.4.1+1)
#   - JDK21_HOME pointing at a pre-JDK-24 install (this repo used OpenJDK 21.0.10), for the
#     virtual-thread pinning contrast at the end
set -euo pipefail
cd "$(dirname "$0")/.."

: "${JDK25_HOME:?Set JDK25_HOME to a JDK 24+ install}"
: "${JDK21_HOME:?Set JDK21_HOME to a pre-JDK-24 install}"

mkdir -p target/classes target/classes-21
"$JDK25_HOME/bin/javac" --release 25 -d target/classes $(find src/main/java -name "*.java")
"$JDK21_HOME/bin/javac" --release 21 -d target/classes-21 $(find src/main/java -name "*.java")

echo "--- 01: CountDownLatch pipeline ---"
{
  echo '$ java CountDownLatchPipeline'
  echo ""
  "$JDK25_HOME/bin/java" -cp target/classes com.ankurm.synchronizers.CountDownLatchPipeline 2>&1 | grep -v "Picked up"
} > output/01-countdownlatch-pipeline.txt

echo "--- 02: CyclicBarrier pipeline ---"
{
  echo '$ java CyclicBarrierPipeline'
  echo ""
  "$JDK25_HOME/bin/java" -cp target/classes com.ankurm.synchronizers.CyclicBarrierPipeline 2>&1 | grep -v "Picked up"
} > output/02-cyclicbarrier-pipeline.txt

echo "--- 03: Phaser pipeline (dynamic registration) ---"
{
  echo '$ java PhaserPipeline'
  echo ""
  "$JDK25_HOME/bin/java" -cp target/classes com.ankurm.synchronizers.PhaserPipeline 2>&1 | grep -v "Picked up"
} > output/03-phaser-pipeline.txt

echo "--- 04: Semaphore resource guard ---"
{
  echo '$ java SemaphoreResourceGuard'
  echo ""
  "$JDK25_HOME/bin/java" -cp target/classes com.ankurm.synchronizers.SemaphoreResourceGuard 2>&1 | grep -v "Picked up"
} > output/04-semaphore-resource-guard.txt

echo "--- 05: timeout behavior across all four ---"
{
  echo '$ java TimeoutBehaviorDemo'
  echo ""
  "$JDK25_HOME/bin/java" -cp target/classes com.ankurm.synchronizers.TimeoutBehaviorDemo 2>&1 | grep -v "Picked up"
} > output/05-timeout-behavior.txt

echo "--- 06: virtual-thread compatibility, all four, on JDK21 (pre-JEP-491) ---"
{
  echo '$ java -Djdk.tracePinnedThreads=full VirtualThreadCompatibilityDemo   (pre-JDK-24 runtime)'
  echo ""
  "$JDK21_HOME/bin/java" -Djdk.tracePinnedThreads=full -cp target/classes-21 \
    com.ankurm.synchronizers.VirtualThreadCompatibilityDemo 2>&1 | grep -v "Picked up"
  echo ""
  echo '$ java -Djdk.tracePinnedThreads=full SynchronizedWaitPinsDemo   (pre-JDK-24 runtime, contrast case)'
  echo ""
  "$JDK21_HOME/bin/java" -Djdk.tracePinnedThreads=full -cp target/classes-21 \
    com.ankurm.synchronizers.SynchronizedWaitPinsDemo 2>&1 | grep -v "Picked up"
} > output/06-virtual-thread-compatibility.txt

echo "--- 07: correctness tests ---"
"$JDK25_HOME/bin/java" --version > /dev/null # sanity
(cd "$(pwd)" && JAVA_HOME="$JDK25_HOME" mvn -q -f pom.xml test 2>&1 | grep -v "Picked up\|WARNING" || true)
cp target/surefire-reports/com.ankurm.synchronizers.RoundOrderingCorrectnessTest.txt output/07-round-ordering-correctness.txt

echo "Done. See output/."