---
name: molecule
  
on:
  pull_request:

jobs:
  detect:
    name: Detect changed roles
    runs-on: ubuntu-latest
    outputs:
      matrix: ${{ steps.make-matrix.outputs.matrix }}

    steps:
      - name: Get PR files and build role matrix
        id: make-matrix
        uses: actions/github-script@v6
        with:
          script: |
            if (!context.payload.pull_request?.number) {
              core.setFailed('This workflow must be triggered by a pull_request event. No pull_request found in context.');
              return;
            }  
          
            // List files changed in the PR and extract top-level role folders under `roles/`
            const files = await github.paginate(github.rest.pulls.listFiles, {
              owner: context.repo.owner,
              repo: context.repo.repo,
              pull_number: context.payload.pull_request.number,
              per_page: 100
            });

            const roles = Array.from(new Set(files.map(f => {
              const m = f.filename.match(/^roles\/([^/]+)/);
              return m ? `roles/${m[1]}` : null;
            }).filter(Boolean)));

            // If nothing changed, use a sentinel so the matrix is never empty (empty matrices fail the runner)
            if (roles.length === 0) {
              roles.push('__no_role__');
            }

            const matrix = { include: roles.map(r => ({ role: r })) };
            core.setOutput('matrix', JSON.stringify(matrix));

            console.log(matrix);

  
  molecule:
    name: Run Molecule
    needs: detect
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix: ${{ fromJson(needs.detect.outputs.matrix) }}
    
    steps:
      - name: Checkout the repo
        if: ${{ matrix.role != '__no_role__' }}
        uses: actions/checkout@v6
        with:
          fetch-depth: 0

      - name: "Set up micromamba"
        uses: mamba-org/setup-micromamba@4d84239119b14cba1690b971f05c0bab912bea04
        if: ${{ matrix.role != '__no_role__' }}
        with:
          micromamba-version: '2.4.0-0'
          environment-file: ci/conda.yml
          init-shell: bash
          post-cleanup: 'all'
          cache-environment: true

      - name: "Install collection dependencies"
        if: ${{ matrix.role != '__no_role__' }}
        run: ansible-galaxy install -r requirements.yml
        shell: micromamba-shell {0}

      - name: "Run Molecule tests"
        if: ${{ matrix.role != '__no_role__' }}
        working-directory: ${{ matrix.role }}
        run: molecule test
        shell: micromamba-shell {0}
        env:
          PY_COLORS: '1'
          ANSIBLE_FORCE_COLOR: '1'
          # MOLECULE_DISTRO: ${{ matrix.distro }}
  
  
  # molecule:
  #   name: molecule
  #   runs-on: ubuntu-latest
  #   timeout-minutes: 10

  #   strategy:
  #     matrix:
  #       distro:
  #         - ubuntu2404
  #         - ubuntu2204

  #   steps:
  #     - uses: actions/checkout@v6

  #     - uses: mamba-org/setup-micromamba@4d84239119b14cba1690b971f05c0bab912bea04
  #       with:
  #         micromamba-version: '2.4.0-0'
  #         environment-file: ci/conda.yml
  #         init-shell: bash
  #         post-cleanup: 'all'
  #         cache-environment: true

  #     - name: "Install role dependencies"
  #       run: ansible-galaxy install -r requirements.yml
  #       shell: micromamba-shell {0}

  #     - name: "Run Molecule tests"
  #       run: molecule test
  #       shell: micromamba-shell {0}
  #       env:
  #         PY_COLORS: '1'
  #         ANSIBLE_FORCE_COLOR: '1'
  #         MOLECULE_DISTRO: ${{ matrix.distro }}