name: Integration Tests
on:
  pull_request:
    branches: '**'
  workflow_dispatch:
concurrency:
  group: integration-test-${{ github.ref }}
  cancel-in-progress: true
env:
  split-total: 10
jobs:
  generate-split-index-json:
    name: Generate split indexes
    runs-on: ubuntu-latest
    outputs:
      json: ${{ steps.generate.outputs.split-index-json }}
    steps:
      - name: Generate split index list 
        id: generate
        uses: donnerbart/split-tests-java-action/generate-split-index-json@v1
        with:
          split-total: ${{ env.split-total }}

  integration-test:
    name: 'Split #${{ matrix.split-index }}'
    runs-on: ubuntu-latest
    needs:
      - generate-split-index-json
    strategy:
      fail-fast: false
      matrix:
        split-index: ${{ fromjson(needs.generate-split-index-json.outputs.json) }}
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          path: project

      - name: Checkout JUnit reports
        uses: donnerbart/split-tests-java-action/checkout-junit-reports@v1
        with:
          git-branch: junit-reports/${{ github.base_ref }}
          path: junit-reports

      - name: Set up JDK 21
        uses: actions/setup-java@v4
        with:
          distribution: temurin
          java-version: 21

      - name: Set up Gradle
        uses: gradle/actions/setup-gradle@v4

      - name: Split tests
        id: split-tests
        uses: donnerbart/split-tests-java-action@v1
        with:
          split-index: ${{ matrix.split-index }}
          split-total: ${{ env.split-total }}
          glob: '**/project/src/integrationTest/**/*IT.java'
          junit-glob: '**/junit-reports/*.xml'
          format: 'gradle'
          new-test-time: 'average'
          debug: true

      - name: Run integration tests
        run: ./gradlew :integrationTest ${{ steps.split-tests.outputs.test-suite }}

      - name: Upload JUnit report artifact
        uses: actions/upload-artifact@v4
        with:
          name: junit-xml-reports-${{ matrix.split-index }}
          path: '**/test-results/integrationTest/*.xml'

  merge-junit-reports:
    name: Merge JUnit reports
    runs-on: ubuntu-latest
    needs:
      - integration-test
    permissions:
      contents: write
    steps:
      - name: Merge JUnit reports
        uses: donnerbart/split-tests-java-action/merge-junit-reports@v1
        with:
          git-branch: junit-reports/${{ github.base_ref }}
          artifact-name: junit-xml-reports
          split-artifact-pattern: junit-xml-reports-*