name: Build and Package JRuby Rails App

on:
  push:
    branches:
      - main

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Install Java and JRuby
        run: |
          apt-get update && apt-get install -y wget curl libgmp-dev
          # Install Java (needed for JRuby and jpackage)
          apt-get install -y openjdk-17-jdk
          
          # Download and install JRuby directly
          JRUBY_VERSION="9.4.6.0"
          curl -O https://repo1.maven.org/maven2/org/jruby/jruby-dist/${JRUBY_VERSION}/jruby-dist-${JRUBY_VERSION}-bin.tar.gz
          tar -xzf jruby-dist-${JRUBY_VERSION}-bin.tar.gz -C /opt/
          ln -s /opt/jruby-${JRUBY_VERSION}/bin/jruby /usr/local/bin/jruby
          ln -s /opt/jruby-${JRUBY_VERSION}/bin/bundle /usr/local/bin/bundle

      - name: Install Dependencies
        run: |
          bundle install

      - name: Build JAR with Jarbler
        run: |
          gem install jarbler
          jarble

      - name: Generate Unique App Name with Git Hash
        id: vars
        run: |
          SHORT_HASH=$(git rev-parse --short HEAD)
          echo "app_name=custom-app-${SHORT_HASH}" >> $GITHUB_OUTPUT

      - name: Package with jpackage
        run: |
          # Find the generated jar file name dynamically
          JAR_FILE=$(ls build/*.jar | head -n 1)
          
          # Run jpackage to bundle the application and runtime into an app-image directory
          jpackage \
            --type app-image \
            --name "${{ steps.vars.outputs.app_name }}" \
            --input "$(dirname "$JAR_FILE")" \
            --main-jar "$(basename "$JAR_FILE")" \
            --dest dist

      - name: Compress Executable Package
        run: |
          cd dist
          tar -czvf "${{ steps.vars.outputs.app_name }}.tar.gz" "${{ steps.vars.outputs.app_name }}"

      - name: Upload Artifact
        uses: actions/upload-artifact@v4
        with:
          name: ${{ steps.vars.outputs.app_name }}
          path: dist/*.tar.gz