name: CI

on:
  push:
    branches: [master, alpha]
  pull_request:
    branches: [master, alpha]

jobs:
  test:
    runs-on: ubuntu-latest

    strategy:
      # Otherwise how would we know if a specific React version caused the failure?
      fail-fast: false
      matrix:
        REACT_DIST: [16, 17, 18]
    steps:
      - uses: actions/checkout@v2
      - name: Use Node.js 14
        uses: actions/setup-node@v2
        with:
          node-version: 14
          cache: 'npm'
      - run: yarn
      - run: yarn add react@${{ matrix.REACT_DIST }} react-dom@${{ matrix.REACT_DIST }}
      - run: yarn add @testing-library/react@12
        if: matrix.REACT_DIST == '17' || matrix.REACT_DIST == '16'
      - run: yarn --cwd www
      # Test whether the web page can be built successfully or not
      - run: yarn --cwd www build
      - run: yarn test
      - name: Dry release
        uses: cycjimmy/semantic-release-action@v2
        with:
          dry_run: true
          semantic_version: 17
          branches: |
            [
              'master',
              {name: 'alpha', prerelease: true}
            ]
        env:
          # These are not available on forks but we need them on actual runs to verify everything is set up.
          # Otherwise we might fail in the middle of a release
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}

  release:
    needs: test
    runs-on: ubuntu-latest
    if: ${{ github.repository == 'reactjs/react-transition-group' &&
      contains('refs/heads/master,refs/heads/alpha',
      github.ref) && github.event_name == 'push' }}
    steps:
      - uses: styfle/cancel-workflow-action@0.9.0
      - uses: actions/checkout@v2
      - name: Use Node.js 14
        uses: actions/setup-node@v2
        with:
          node-version: 14
          cache: 'npm'
      - run: yarn
      - run: yarn build
      - name: Release
        uses: cycjimmy/semantic-release-action@v2
        with:
          semantic_version: 17
          branches: |
            [
              'master',
              {name: 'alpha', prerelease: true}
            ]
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}