name: docs

on:
  push:
    branches: [main]
    paths:
      - 'docs/**'
      - 'mkdocs.yaml'
      - '.github/workflows/docs.yml'
  pull_request:
    paths:
      - 'docs/**'
      - 'mkdocs.yaml'
      - '.github/workflows/docs.yml'
  workflow_dispatch:

concurrency:
  group: github-pages
  cancel-in-progress: false

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v6
      - uses: actions/setup-python@v6
        with:
          python-version: "3.x"

      - name: Install docs dependencies
        run: |
          python -m pip install --upgrade pip
          python -m pip install -r docs/requirements.txt

      - name: Build documentation
        run: python -m mkdocs build --strict --config-file mkdocs.yaml

      - name: Upload Pages artifact
        uses: actions/upload-pages-artifact@v3
        with:
          path: site

  deploy:
    if: github.event_name == 'push' && github.repository == 'verified-software-lab/civl'
    needs: build
    runs-on: ubuntu-latest

    permissions:
      pages: write
      id-token: write

    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}

    steps:
      - name: Deploy to GitHub Pages
        id: deployment
        uses: actions/deploy-pages@v5