name: Preview
on:
  workflow_dispatch:
  pull_request:
    types: [opened, synchronize, reopened, ready_for_review]

    # Run the workflow only when one of these files changes. src/axolotl is
    # included because quartodoc renders API docs from the whole package —
    # removing a module it tracks breaks the build (see _quarto.yml sections)
    paths:
      - '**/*.md'      # any Markdown file
      - '**/*.qmd'     # any Quarto file
      - '_quarto.yml'
      - 'docs/**'
      - 'src/axolotl/**.py'
      - .github/workflows/preview-docs.yml

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}

permissions:
  contents: read
  pull-requests: write

jobs:
  preview:
    runs-on: ubuntu-latest
    if: ${{ !github.event.pull_request.draft }}
    steps:
      - name: cleanup node
        run: |
          sudo rm -rf /usr/share/dotnet /usr/local/lib/android /opt/ghc /opt/hostedtoolcache/CodeQL

      - name: Check out repository
        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
        with:
          persist-credentials: false
          ref: ${{ github.event.pull_request.head.sha }}

      - name: Set up Quarto
        uses: quarto-dev/quarto-actions/setup@8a96df13519ee81fd526f2dfca5962811136661b # v2.2.0

      - name: Setup Python
        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
        with:
          python-version: '3.11'

      - name: Install dependencies
        run: |
          python3 -m pip install jupyter quartodoc
          python3 -m pip install -e .

      - name: Build autodoc
        run: quartodoc build

      - name: Quarto render
        run: quarto render

      # everything above runs credential-free on every PR (including forks) so
      # a broken docs build fails CI; publishing needs the Netlify secrets,
      # which only same-repo branches get
      - name: Netlify Publish
        uses: nwtgck/actions-netlify@d22a32a27c918fe470bbc562e984f80ec48c2668 # v4.0.0
        if: ${{ github.event.pull_request.head.repo.full_name == github.repository }}
        id: netlify
        with:
          publish-dir: './_site'
          enable-pull-request-comment: false
          enable-github-deployment: false
          github-token: ${{ secrets.GITHUB_TOKEN }}
          deploy-message: "Deployed On Netlify"
          github-deployment-environment: 'preview'
          github-deployment-description: 'Preview Deployment'
        env:
          NETLIFY_AUTH_TOKEN: ${{ secrets.NETLIFY_AUTH_TOKEN }}
          NETLIFY_SITE_ID: ${{ secrets.NETLIFY_SITE_ID }}

      - name: Update PR with preview link
        if: ${{ steps.netlify.outcome == 'success' }}
        uses: marocchino/sticky-pull-request-comment@773744901bac0e8cbb5a0dc842800d45e9b2b405 # v2.9.4
        with:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          message: |
            📖 **Documentation Preview**: ${{ steps.netlify.outputs.deploy-url }}

            Deployed on Netlify from commit ${{ github.event.pull_request.head.sha }}