# Automatically detects and documents NuGet package version changes in PRs.
# Triggers on changes to Directory.Packages.props and:
# - Adds 'dependency-change' label to the PR
# - Updates docs/en/package-version-changes.md with version changes
# - Commits the documentation back to the PR branch
# Note: Only runs for PRs from the same repository (not forks) to ensure write permissions.
name: Nuget Packages Version Change Detector

on:
  pull_request:
    paths:
      - 'Directory.Packages.props'
    types:
      - opened
      - synchronize
      - reopened
      - ready_for_review

permissions:
  contents: read

concurrency:
  group: dependency-changes-${{ github.event.pull_request.number }}
  cancel-in-progress: false

jobs:
  label:
    if: ${{ !github.event.pull_request.draft && !startsWith(github.head_ref, 'auto-merge/') && github.event.pull_request.head.repo.full_name == github.repository && !contains(github.event.head_commit.message, '[skip ci]') }}
    permissions:
      contents: write
      pull-requests: write
    runs-on: ubuntu-latest
    env:
      DOC_PATH: docs/en/package-version-changes.md
    steps:
      - run: gh pr edit "$PR_NUMBER" --add-label "dependency-change"
        env:
          PR_NUMBER: ${{ github.event.pull_request.number }}
          GH_TOKEN: ${{ secrets.BOT_SECRET }}
          GH_REPO: ${{ github.repository }}

      - uses: actions/checkout@v4
        with:
          ref: ${{ github.event.pull_request.head.ref }}
          fetch-depth: 1

      - name: Fetch base branch
        run: git fetch origin ${{ github.event.pull_request.base.ref }}:refs/remotes/origin/${{ github.event.pull_request.base.ref }} --depth=1

      - uses: actions/setup-python@v5
        with:
          python-version: '3.x'

      - run: python .github/scripts/update_dependency_changes.py ${{ github.event.pull_request.base.ref }} ${{ github.event.pull_request.number }}

      - name: Commit changes
        run: |
          set -e
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add "$DOC_PATH"
          if git diff --staged --quiet; then
            echo "No changes to commit."
          else
            git commit -m "docs: update package version changes [skip ci]"
            if ! git push; then
              echo "Error: Failed to push changes. This may be due to conflicts or permission issues."
              exit 1
            fi
            echo "Successfully committed and pushed documentation changes."
          fi