name: Build and deploy
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
permissions:
  contents: read
  pages: write
  id-token: write

on:
  # Run when the main branch is pushed or a pull request is made
  push:
    branches:
      - main
  pull_request:
    branches:
      - main
  schedule:
    - cron: "*/15 * * * *"
  workflow_dispatch:

  # Run when webmentions are fetched
  workflow_run:
    workflows:
      - Fetch webmentions
    branches:
      - main
    types:
      - completed

# Jobs
jobs:
  build:
    name: Install dependencies
    runs-on: ubuntu-latest
    env:
      HUGO_VERSION: 0.158.0
    steps:
      - name: Install Hugo CLI
        run: |
          wget -O ${{ runner.temp }}/hugo.deb https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/hugo_extended_${HUGO_VERSION}_linux-amd64.deb \
          && sudo dpkg -i ${{ runner.temp }}/hugo.deb

      - name: Checkout
        uses: actions/checkout@v6.0.2
        with:
          submodules: recursive

      - name: Cache node modules
        uses: actions/cache@v5.0.4
        env:
          cache-name: cache-node-modules-v1
        with:
          path: |
            ~/.npm
            node_modules
          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/package-lock.json') }}
          restore-keys: |
            ${{ runner.os }}-build-${{ env.cache-name }}-
            ${{ runner.os }}-build-
            ${{ runner.os }}-

      - name: Setup GitHub Pages
        id: pages
        uses: actions/configure-pages@v4.0.0

      - name: Set up Node.js
        uses: actions/setup-node@v6.3.0
        with:
          node-version: 16

      - name: Install Node.js dependencies
        run: npm install

      - name: Configure timezone as Europe/Rome
        uses: szenius/set-timezone@v2.0
        with:
          timezoneLinux: Europe/Rome
          timezoneMacos: Europe/Rome

      - name: Cache built website
        uses: actions/cache@v5.0.4
        env:
          cache-name: cache-website-v1
        with:
          path: |
            .publish
            resources/_gen
          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('config', 'content', 'data', 'themes') }}
          restore-keys: |
            ${{ runner.os }}-build-${{ env.cache-name }}-
            ${{ runner.os }}-build-
            ${{ runner.os }}

      - name: Build with Hugo
        env:
          # For maximum backward compatibility with Hugo modules
          HUGO_ENVIRONMENT: production
          HUGO_ENV: production
        run: make deploy_prod

      - name: Upload artifact
        uses: actions/upload-pages-artifact@v4.0.0
        with:
          path: ./public

  deploy:
    name: Deploy Hugo into GitHub Pages
    if: github.ref == 'refs/heads/main'
    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}
    runs-on: ubuntu-latest
    needs: build
    steps:
      - name: Deploy to GitHub Pages
        id: deployment
        uses: actions/deploy-pages@v4.0.5