name: Generate dependency diff

on:
  pull_request:

jobs:
  generate-diff:
    runs-on: ubuntu-latest
    
    steps:
    - uses: actions/checkout@v3

    - uses: actions/setup-java@v3
      with:
        distribution: 'temurin'
        java-version: 21
        
    - uses: gradle/actions/setup-gradle@v3
      with:
        arguments: dependencies

    - id: dependency-diff
      name: Generate dependency diff
      uses: usefulness/dependency-tree-diff-action@v2

    - uses: peter-evans/find-comment@v3
      id: find_comment
      with:
        issue-number: ${{ github.event.pull_request.number }}
        body-includes: Dependency diff

    - uses: peter-evans/create-or-update-comment@v3
      if: ${{ steps.dependency-diff.outputs.text-diff != null || steps.find_comment.outputs.comment-id != null }}
      with:
        body: |
          Dependency diff (customize your message here): 
            ```diff
            ${{ steps.dependency-diff.outputs.text-diff }}
            ```
        edit-mode: replace
        comment-id: ${{ steps.find_comment.outputs.comment-id }}
        issue-number: ${{ github.event.pull_request.number }}
        token: ${{ secrets.GITHUB_TOKEN }}

    - id: dependency-diff
      uses: usefulness/dependency-tree-diff-action@v2
      with:
        configuration: 'releaseRuntimeClasspath'
        project: 'app'
        build-root-directory: .
        additional-gradle-arguments: ''
        lib-version: 'latest'