#!/bin/bash
set -e

echo "=== 1. Cleaning Workspace ==="
rm -rf bin stage
mkdir -p bin/classes bin/test-classes stage dist # dist was never created

echo "=== 2. Compiling Production Code ==="
javac -d bin/classes -cp "lib/*" @<(find src/main/java -name '*.java')

echo "=== 3. Compiling Test Code ==="
# prod classes are in bin/classes, not bin
javac -d bin/test-classes -cp "bin/classes:lib/*" @<(find src/test/java -name '*.java')

echo "=== 4. Running Automated Tests ==="
JUNIT_JAR=$(find lib -maxdepth 1 -name 'junit-platform-console-standalone-*.jar' | head -n 1)
if [ -z "$JUNIT_JAR" ]; then
  echo "JUnit jar missing."
  exit 1
fi

set +e
java -jar "$JUNIT_JAR" execute \
  -cp "bin/classes:bin/test-classes:lib/*" \
  --scan-classpath
TEST_STATUS=$?
set -e

if [ $TEST_STATUS -ne 0 ]; then
  echo "❌ Tests failed! Aborting build package."
  exit 1
fi
echo "✅ Tests passed successfully!"

echo "=== 5. Extracting Dependencies for Fat JAR ==="
cd stage
for jarfile in ../lib/*.jar; do
  [ -f "$jarfile" ] || continue
  case "$(basename "$jarfile")" in
  junit-platform-console-standalone-*) continue ;;
  esac
  echo "Extracting: $(basename "$jarfile")"
  jar -xf "$jarfile"
done

# Strip signatures + manifests (they break repacking), but KEEP
# META-INF/services so ServiceLoader-based deps still work at runtime.
find META-INF -type f \( -name '*.SF' -o -name '*.RSA' -o -name '*.DSA' -o -name 'MANIFEST.MF' \) -delete 2>/dev/null || true
cd ..

echo "=== 6. Merging Assets into Fat JAR ==="
# Merge YOUR production classes on top of the extracted deps
cp -r bin/classes/. stage/
# Package the whole tree (deps + your classes), not just stage/classes
jar cfe dist/app.jar com.example.App -C stage .

rm -rf stage
echo "======================================"
echo "🎉 Fat JAR Created! Run it with:"
echo "java -jar dist/app.jar"
echo "======================================"