name: website

on:
  push:
    branches:
      - 'main'
      - 'release-**'
  pull_request:
    types:
      - opened
      - reopened
      - synchronize
      - ready_for_review
    branches:
      - 'main'
      - 'release-**'
 
concurrency:
  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
  cancel-in-progress: true

jobs:
  changes:
    outputs:
      should-run-link-check: ${{ steps.changes.outputs.src == 'true' }}
    if: github.event.pull_request.draft == false
    runs-on: ubuntu-22.04
    steps:
      - uses: actions/checkout@v4
      - uses: dorny/paths-filter@v2
        id: changes
        with:
          filters: |
            src:
              - '**.js'
              - 'yarn.lock'
              - 'package.json'
              - '.github/workflows/website.yml'

  # Check that the website builds and there's no missing links.
  # This job builds the website, starts a server to serve it, and then uses
  # muffet (https://github.com/raviqqe/muffet) to perform the link check.
  link-check:
    needs: [changes]
    if: github.event.pull_request.draft == false && needs.changes.outputs.should-run-link-check == 'true'
    name: Website Link Check
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-node@v4
        with:
          node-version-file: .node-version

      - name: run http-server
        env:
          # renovate: datasource=github-releases depName=raviqqe/muffet
          MUFFET_VERSION: 2.6.3
        run: |
          npm install -g yarn
          # http-server is used to serve the website locally as muffet checks it.
          yarn global add http-server
          # install raviqqe/muffet to check for broken links.
          curl -L https://github.com/raviqqe/muffet/releases/download/v${MUFFET_VERSION}/muffet_${MUFFET_VERSION}_Linux_x86_64.tar.gz | tar -xz
          yarn install
          yarn website:build
          http-server runatlantis.io/.vuepress/dist &

      - name: wait until server listened
        run: curl --retry-delay 1 --retry 30 --retry-all-error http://localhost:8080

      # medium.com => was being rate limited: HTTP 429
      - run: |
          ./muffet \
            -e 'https://medium.com/runatlantis' \
            -e 'https://github\.com/runatlantis/atlantis/edit/main/.*' \
            -e 'https://github.com/runatlantis/helm-charts#customization' \
            -e 'https://confluence.atlassian.com/*' \
            --header 'Accept-Encoding:deflate, gzip' \
            --buffer-size 8192 \
            http://localhost:8080/

  skip-link-check:
    needs: [changes]
    if: needs.changes.outputs.should-run-link-check == 'false'
    name: Website Link Check
    runs-on: ubuntu-latest
    steps:
      - run: 'echo "No build required"'