deploy_pr.yml

name: PR preview deployment
on:
  pull_request:
    types:
      - opened
      - synchronize
      - ready_for_review
      - reopened

jobs:
  build_deploy:
    runs-on: ubuntu-latest
    permissions:
      pull-requests: write
    steps:
      - uses: actions/checkout@v3

      - name: Use Node.js
        uses: actions/setup-node@v3
        with:
          node-version: 18

      - name: Get branch name (merge)
        if: github.event_name != 'pull_request'
        shell: bash
        run: echo "BRANCH_NAME=$(echo ${GITHUB_REF#refs/heads/})" >> $GITHUB_ENV

      - name: Get branch name (pull request)
        if: github.event_name == 'pull_request'
        shell: bash
        run: echo "BRANCH_NAME=$(echo ${GITHUB_HEAD_REF})" >> $GITHUB_ENV

      - name: Escape branch name for URL
        shell: bash
        run: echo "URLSAFE_BRANCH_NAME=$(echo ${BRANCH_NAME} | sed 's|[^A-Za-z0-9-]|-|g' | sed -E 's|-*([A-Za-z0-9]*.*[A-Za-z0-9]+)-*|\1|')" >> $GITHUB_ENV

      - name: Report escaped branch name
        shell: bash
        run: echo ${URLSAFE_BRANCH_NAME}

      - name: Build
        run: |
          npm install
          npm run widget:build
          npm run widget:build:preview -- ${URLSAFE_BRANCH_NAME} ${PRNum}
        env:
          PRNum: ${{ github.event.number }}

      - name: Configure AWS Credentials
        uses: aws-actions/configure-aws-credentials@v4
        with:
          aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
          aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
          aws-region: us-west-1

      - name: Deploy to S3
        run: aws s3 sync ./widget/dist s3://staging.cdn.innovation.ca.gov/br/pr/${URLSAFE_BRANCH_NAME} --follow-symlinks

      - name: Invalidate Cloudfront
        env:
          AWS_RETRY_MODE: standard
          AWS_MAX_ATTEMPTS: 6
        run: aws cloudfront create-invalidation --distribution-id EPGKQG9OR4C9S --paths "/br/*"

      - name: Post URL to PR
        uses: mshick/add-pr-comment@v2
        with:
          message: |
            [Widget preview available](https://staging.cdn.innovation.ca.gov/br/pr/${{ env.URLSAFE_BRANCH_NAME }}/preview/index.html).