#!/usr/bin/env bash
# Regenerates every file in output/. Needs JDK 25 as JAVA_HOME; JDK26_HOME (optional) adds the
# JEP 500 comparison run. JMH takes a few minutes.
set -euo pipefail
cd "$(dirname "$0")/.."

mvn -q package

# env -u keeps the sandbox's JAVA_TOOL_OPTIONS banner out of committed output.
J() { env -u JAVA_TOOL_OPTIONS "$JAVA_HOME/bin/java" "$@"; }

echo "--- 01: basics ---"
{ echo '$ java -cp target/classes com.ankurm.reflection.ReflectionBasicsDemo'; echo
  J -cp target/classes com.ankurm.reflection.ReflectionBasicsDemo 2>&1; } > output/01-basics.txt

echo "--- 02: module rules ---"
{ echo '$ java -cp target/classes com.ankurm.reflection.ModuleRulesDemo'; echo
  J -cp target/classes com.ankurm.reflection.ModuleRulesDemo 2>&1
  echo; echo '$ java --add-opens java.base/java.lang=ALL-UNNAMED -cp target/classes com.ankurm.reflection.ModuleRulesDemo'; echo
  J --add-opens java.base/java.lang=ALL-UNNAMED -cp target/classes com.ankurm.reflection.ModuleRulesDemo 2>&1; } > output/02-module-rules.txt

echo "--- 03: final fields (JDK 25, and JDK 26 if JDK26_HOME is set) ---"
{ echo '$ java -cp target/classes com.ankurm.reflection.FinalFieldDemo   # JDK 25'; echo
  J -cp target/classes com.ankurm.reflection.FinalFieldDemo 2>&1
  if [ -n "${JDK26_HOME:-}" ]; then
    echo; echo '$ java -cp target/classes com.ankurm.reflection.FinalFieldDemo   # JDK 26'; echo
    env -u JAVA_TOOL_OPTIONS "$JDK26_HOME/bin/java" -cp target/classes com.ankurm.reflection.FinalFieldDemo 2>&1
    echo; echo '$ java --illegal-final-field-mutation=deny -cp target/classes com.ankurm.reflection.FinalFieldDemo   # JDK 26'; echo
    env -u JAVA_TOOL_OPTIONS "$JDK26_HOME/bin/java" --illegal-final-field-mutation=deny -cp target/classes com.ankurm.reflection.FinalFieldDemo 2>&1 || true
  fi; } > output/03-final-fields.txt

echo "--- 04: method handles ---"
{ echo '$ java -cp target/classes com.ankurm.reflection.MethodHandlesDemo'; echo
  J -cp target/classes com.ankurm.reflection.MethodHandlesDemo 2>&1; } > output/04-method-handles.txt

echo "--- 05: JMH call cost (a few minutes) ---"
J -jar target/benchmarks.jar CallBenchmark -rf text -rff /tmp/jmh-reflection.txt > /tmp/jmh-reflection.log 2>&1
{ echo '$ java -jar target/benchmarks.jar CallBenchmark'; echo
  J -version 2>&1 | head -1
  echo; grep -A20 '^Benchmark ' /tmp/jmh-reflection.log | grep -v 'Benchmark result is saved'; } > output/05-call-benchmark.txt

echo "--- 06: single-file quick start ---"
{ echo '$ java src/main/java/com/ankurm/reflection/QuickStart.java'; echo
  J src/main/java/com/ankurm/reflection/QuickStart.java 2>&1; } > output/06-quickstart.txt
echo done