name: Build

on:
  workflow_dispatch:
  push:
    branches: ["main"]
  schedule:
    - cron: "0 0 * * *" # every day at 00:00 UTC, should be equivalent to the nightly.

permissions:
  contents: read
  pages: write
  id-token: write

# Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
# However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
concurrency:
  group: "pages"
  cancel-in-progress: false

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: "Create root directory"
        run: mkdir ./www-root
      - name: Run the build
        run: ./build.sh
      - name: Upload static files as artifact
        id: deployment
        uses: actions/upload-pages-artifact@v3
        with:
          path: www-root
  deploy:
    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

  keep-alive:
    runs-on: ubuntu-latest
    permissions:
      actions: write
    steps:
      # We don't often commit to this repository, and without any activity GitHub Actions will
      # disable scheduled workflows after 60 days. It turns out that calling the "enable" API even
      # before the workflow is disabled resets the 60 days counter though!
      #
      # Copied from https://github.com/rust-lang/generate-manifest-list/blob/5440ac3d7029fcb961854883c5ac267d50fed15b/.github/workflows/cron.yml
      - name: Call the GitHub API
        run: |
          curl -X PUT "https://api.github.com/repos/${GITHUB_REPOSITORY}/actions/workflows/build.yml/enable" -H "Authorization: token ${GITHUB_TOKEN}"
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}