name: Preview Pull Request

on:
    pull_request:
        types: [synchronize, reopened, labeled]

jobs:
    build:
        runs-on: ubuntu-latest
        # make sure the pull request is labeled with 'use-preview'
        if: github.event.label.name == 'use-preview' || contains(github.event.pull_request.labels.*.name, 'use-preview')

        steps:
            - uses: actions/checkout@v2
              with:
                  # Head commit of the pull request
                  ref: ${{ github.event.pull_request.head.sha }}
                  submodules: recursive

            - name: Setup Node
              uses: actions/setup-node@v2
              with:
                  node-version: 15
                  cache: "yarn"

            - run: yarn install
            # - run: yarn check

            - name: build
              run: yarn build --base "/revite/${{ github.ref }}/"

            - name: publish preview
              uses: JamesIves/github-pages-deploy-action@4.1.5
              with:
                  branch: build-previews
                  folder: dist
                  target-folder: ${{ github.ref }}

            - name: send comment
              uses: marocchino/sticky-pull-request-comment@v2
              with:
                  header: Preview environment
                  message: |
                      ## Preview environment
                      https://${{ github.repository_owner }}.github.io/revite/${{ github.ref }}/index.html

                      This link will remain active until the `use-preview` label is removed.