name: Check for Hugo releases

on:
  schedule:
  - cron: '0 */3 * * *'   # run every three hours
  workflow_dispatch:

jobs:
  check:
    runs-on: ubuntu-latest
    steps:
    - name: Get latest Hugo version
      id: hugo_version
      # https://gist.github.com/lukechilds/a83e1d7127b78fef38c2914c4ececc3c
      run: |
        HUGO_VERSION=$(curl --silent "https://api.github.com/repos/gohugoio/hugo/releases/latest" | grep '"tag_name":' | sed -E 's/.*"([^"]+)".*/\1/' | tr -d "v")
        echo "::set-output name=VERSION::$HUGO_VERSION"
    - name: Get latest package version
      id: package_version
      run: |
        PACKAGE_VERSION=$(npm show hugo-extended version)
        echo "::set-output name=VERSION::$PACKAGE_VERSION"
    - name: Compare versions
      id: update
      run: |
        echo "Current package version is v${{ steps.package_version.outputs.VERSION }}."
        echo "Current Hugo version is v${{ steps.hugo_version.outputs.VERSION }}."

        if [ "${{ steps.hugo_version.outputs.VERSION }}" != "${{ steps.package_version.outputs.VERSION }}" ]
        then
          echo "🚨 Needs updating!"
          echo "::set-output name=UPDATE_AVAILABLE::true"
          exit 1
        else
          echo "✅ All good for now."
          echo "::set-output name=UPDATE_AVAILABLE::false"
          exit 0
        fi

# TODO: Automatically bump npm package, commit back to repo, and publish new version.