name: Lint Docker Compose

on:
  pull_request:

jobs:
  compose-lint:
    name: docker compose config
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6

      - name: Stub missing env files referenced by Compose
        run: |
          shopt -s globstar nullglob
          for f in ansible/services/**/docker-compose.yml ansible/services/**/docker-compose.yaml ansible/services/**/compose.yml ansible/services/**/compose.yaml; do
            dir=$(dirname "$f")
            # Create empty stubs for any env_file entries that don't exist
            grep -oP 'env_file:\s*\K.*|^\s*-\s*\K\S+\.env' "$f" 2>/dev/null | while read -r envfile; do
              envfile=$(echo "$envfile" | sed 's/^["'\'']*//;s/["'\'']*$//')
              if [ -n "$envfile" ] && [ ! -f "$dir/$envfile" ]; then
                echo "Creating stub: $dir/$envfile"
                touch "$dir/$envfile"
              fi
            done
          done

      - name: Validate Compose files
        run: |
          failed=0
          found=0
          shopt -s globstar nullglob
          for f in ansible/services/**/docker-compose.yml ansible/services/**/docker-compose.yaml ansible/services/**/compose.yml ansible/services/**/compose.yaml; do
            echo "::group::Validating $f"
            if ! docker compose -f "$f" config --quiet 2>&1; then
              echo "::error file=$f::Compose validation failed"
              failed=1
            fi
            echo "::endgroup::"
            found=1
          done
          if [ "$found" -eq 0 ]; then
            echo "No Compose files found — skipping."
          fi
          exit $failed