#!/bin/bash
set -e

echo "=== 1. Cleaning Workspace ==="
rm -rf bin stage
mkdir bin bin/classes bin/test-classes stage

echo "=== 2. Compiling Production Code ==="
javac -d bin/classes -cp "lib/*" src/main/java/com/example/App.java

echo "=== 3. Compiling Test Code ==="
javac -d bin/test-classes -cp "bin:lib/*" src/test/java/com/example/AppTest.java

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

set +e
java -jar "$JUNIT_JAR" execute -cp "bin:lib/*" --scan-classpath
TEST_STATUS=$?
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
  echo "$jarfile"
  # Skip the JUnit jar so we don't bloat production code
  if [[ "$jarfile" == *"junit-platform-console-standalone"* ]]; then
    continue
  fi
  if [ -f "$jarfile" ]; then
    echo "Extracting: $(basename "$jarfile")"
    jar -xf "$jarfile"
  fi
done
# Clean up extracted manifest directories to prevent conflicts
rm -rf META-INF
cd ..

echo "=== 6. Merging Assets into Fat JAR ==="
# Copy your own compiled production classes into the staging folder
cp -r bin/* stage/

# Package everything in the staging area into the final JAR
jar cfe dist/app.jar com.example.App -C stage/classes/ .

# Clean up staging area
rm -rf stage
echo "======================================"
echo "🎉 Fat JAR Created! Run it anywhere using:"
echo "java -jar app.jar"
echo "======================================"